Merge pull request #963 from damemi/0.25.1-updates

[release-1.25] Doc updates for v0.25.1

.github/ci/ct.yaml

@@ -0,0 +1,6 @@
+chart-dirs:
+  - charts
+helm-extra-args: "--timeout=5m"
+check-version-increment: false
+helm-extra-set-args: "--set=kind=Deployment"
+target-branch: master

.github/workflows/helm.yaml

@@ -0,0 +1,67 @@
+name: Helm
+
+on:
+  push:
+    branches:
+      - master
+      - release-*
+    paths:
+      - 'charts/**'
+      - '.github/workflows/helm.yaml'
+  pull_request:
+    paths:
+      - 'charts/**'
+      - '.github/workflows/helm.yaml'
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v2.1
+        with:
+          version: v3.9.2
+
+      - uses: actions/setup-python@v3.1.2
+        with:
+          python-version: 3.7
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: '1.19.0'
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.2.1
+        with:
+          version: v3.7.0
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --config=.github/ci/ct.yaml)
+          if [[ -n "$changed" ]]; then
+            echo "::set-output name=changed::true"
+          fi
+
+      - name: Run chart-testing (lint)
+        run: ct lint --config=.github/ci/ct.yaml --validate-maintainers=false
+
+      # Need a multi node cluster so descheduler runs until evictions
+      - name: Create multi node Kind cluster
+        run: make kind-multi-node
+
+      # helm-extra-set-args only available after ct 3.6.0
+      - name: Run chart-testing (install)
+        run: ct install --config=.github/ci/ct.yaml
+
+      - name: E2E after chart install
+        env:
+          KUBERNETES_VERSION: "v1.25.0"
+          KIND_E2E: true
+          SKIP_INSTALL: true
+        run: make test-e2e

.github/workflows/security.yaml

@@ -0,0 +1,47 @@
+name: "Security"
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - release-*
+  schedule:
+    - cron: '30 1 * * 0'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Build image
+        run: |
+          IMAGE_REPO=${HELM_IMAGE_REPO:-descheduler}
+          IMAGE_TAG=${HELM_IMAGE_TAG:-security-test}
+          VERSION=security-test make image
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: 'descheduler:security-test'
+          format: 'sarif'
+          exit-code: '0'
+          severity: 'CRITICAL,HIGH'
+          output: 'trivy-results.sarif'
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v2
+        with:
+          sarif_file: 'trivy-results.sarif'
+          exit-code: '0'

.gitignore

@@ -4,4 +4,5 @@ vendordiff.patch
 .idea/
 *.code-workspace
 .vscode/
-kind
+kind
+bin/

Dockerfile

@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-FROM golang:1.17.3
+FROM golang:1.19.0
 
 WORKDIR /go/src/sigs.k8s.io/descheduler
 COPY . .

Makefile

@@ -14,8 +14,10 @@
 
 .PHONY: test
 
+export CONTAINER_ENGINE ?= docker
+
 # VERSION is based on a date stamp plus the last commit
-VERSION?=v$(shell date +%Y%m%d)-$(shell git describe --tags --match "v*")
+VERSION?=v$(shell date +%Y%m%d)-$(shell git describe --tags)
 BRANCH?=$(shell git branch --show-current)
 SHA1?=$(shell git rev-parse HEAD)
 BUILD=$(shell date +%FT%T%z)
@@ -24,7 +26,7 @@ ARCHS = amd64 arm arm64
 
 LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitbranch=${BRANCH} -X ${LDFLAG_LOCATION}.gitsha1=${SHA1}"
 
-GOLANGCI_VERSION := v1.43.0
+GOLANGCI_VERSION := v1.49.0
 HAS_GOLANGCI := $(shell ls _output/bin/golangci-lint 2> /dev/null)
 
 # REGISTRY is the container registry to push
@@ -60,36 +62,36 @@ build.arm64:
 	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build ${LDFLAGS} -o _output/bin/descheduler sigs.k8s.io/descheduler/cmd/descheduler
 
 dev-image: build
-	docker build -f Dockerfile.dev -t $(IMAGE) .
+	$(CONTAINER_ENGINE) build -f Dockerfile.dev -t $(IMAGE) .
 
 image:
-	docker build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE) .
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE) .
 
 image.amd64:
-	docker build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE)-amd64 .
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE)-amd64 .
 
 image.arm:
-	docker build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm" -t $(IMAGE)-arm .
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm" -t $(IMAGE)-arm .
 
 image.arm64:
-	docker build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm64" -t $(IMAGE)-arm64 .
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm64" -t $(IMAGE)-arm64 .
 
 push: image
 	gcloud auth configure-docker
-	docker tag $(IMAGE) $(IMAGE_GCLOUD)
-	docker push $(IMAGE_GCLOUD)
+	$(CONTAINER_ENGINE) tag $(IMAGE) $(IMAGE_GCLOUD)
+	$(CONTAINER_ENGINE) push $(IMAGE_GCLOUD)
 
 push-all: image.amd64 image.arm image.arm64
 	gcloud auth configure-docker
 	for arch in $(ARCHS); do \
-		docker tag $(IMAGE)-$${arch} $(IMAGE_GCLOUD)-$${arch} ;\
-		docker push $(IMAGE_GCLOUD)-$${arch} ;\
+		$(CONTAINER_ENGINE) tag $(IMAGE)-$${arch} $(IMAGE_GCLOUD)-$${arch} ;\
+		$(CONTAINER_ENGINE) push $(IMAGE_GCLOUD)-$${arch} ;\
 	done
-	DOCKER_CLI_EXPERIMENTAL=enabled docker manifest create $(IMAGE_GCLOUD) $(addprefix --amend $(IMAGE_GCLOUD)-, $(ARCHS))
+	DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest create $(IMAGE_GCLOUD) $(addprefix --amend $(IMAGE_GCLOUD)-, $(ARCHS))
 	for arch in $(ARCHS); do \
-		DOCKER_CLI_EXPERIMENTAL=enabled docker manifest annotate --arch $${arch} $(IMAGE_GCLOUD) $(IMAGE_GCLOUD)-$${arch} ;\
+		DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest annotate --arch $${arch} $(IMAGE_GCLOUD) $(IMAGE_GCLOUD)-$${arch} ;\
 	done
-	DOCKER_CLI_EXPERIMENTAL=enabled docker manifest push $(IMAGE_GCLOUD) ;\
+	DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest push $(IMAGE_GCLOUD) ;\
 
 clean:
 	rm -rf _output
@@ -135,13 +137,24 @@ ifndef HAS_GOLANGCI
 endif
 	./_output/bin/golangci-lint run
 
-lint-chart: ensure-helm-install
-	helm lint ./charts/descheduler
-
-test-helm: ensure-helm-install
-	./test/run-helm-tests.sh
+# helm
 
 ensure-helm-install:
 ifndef HAS_HELM
 	curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 && chmod 700 ./get_helm.sh && ./get_helm.sh
-endif
+endif
+
+lint-chart: ensure-helm-install
+	helm lint ./charts/descheduler
+
+build-helm:
+	helm package ./charts/descheduler --dependency-update --destination ./bin/chart
+
+test-helm: ensure-helm-install
+	./test/run-helm-tests.sh
+
+kind-multi-node:
+	kind create cluster --name kind --config ./hack/kind_config.yaml --wait 2m
+
+ct-helm:
+	./hack/verify-chart.sh

OWNERS

@@ -2,14 +2,14 @@ approvers:
 - damemi
 - ingvagabund
 - seanmalloy
+- a7i
 reviewers:
-- aveshagarwal
-- k82cn
-- ravisantoshgudimetla
 - damemi
 - seanmalloy
 - ingvagabund
 - lixiang233
+- a7i
+- janeliul
 emeritus_approvers:
 - aveshagarwal
 - k82cn

README.md

@@ -50,6 +50,8 @@ Table of Contents
   - [Node Fit filtering](#node-fit-filtering)
 - [Pod Evictions](#pod-evictions)
   - [Pod Disruption Budget (PDB)](#pod-disruption-budget-pdb)
+- [High Availability](#high-availability)
+  - [Configure HA Mode](#configure-ha-mode)
 - [Metrics](#metrics)
 - [Compatibility Matrix](#compatibility-matrix)
 - [Getting Involved and Contributing](#getting-involved-and-contributing)
@@ -103,17 +105,17 @@ See the [resources | Kustomize](https://kubectl.docs.kubernetes.io/references/ku
 
 Run As A Job
 ```
-kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/job?ref=v0.22.0' | kubectl apply -f -
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/job?ref=v0.25.1' | kubectl apply -f -
 ```
 
 Run As A CronJob
 ```
-kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/cronjob?ref=v0.22.0' | kubectl apply -f -
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/cronjob?ref=v0.25.1' | kubectl apply -f -
 ```
 
 Run As A Deployment
 ```
-kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/deployment?ref=v0.22.0' | kubectl apply -f -
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/deployment?ref=v0.25.1' | kubectl apply -f -
 ```
 
 ## User Guide
@@ -132,6 +134,7 @@ The policy includes a common configuration that applies to all the strategies:
 | `evictSystemCriticalPods` | `false` | [Warning: Will evict Kubernetes system pods] allows eviction of pods with any priority, including system pods like kube-dns |
 | `ignorePvcPods` | `false` | set whether PVC pods should be evicted or ignored |
 | `maxNoOfPodsToEvictPerNode` | `nil` | maximum number of pods evicted from each node (summed through all strategies) |
+| `maxNoOfPodsToEvictPerNamespace` | `nil` | maximum number of pods evicted from each namespace (summed through all strategies) |
 | `evictFailedBarePods` | `false` | allow eviction of pods without owner references and in failed phase |
 
 As part of the policy, the parameters associated with each strategy can be configured.
@@ -218,6 +221,17 @@ These thresholds, `thresholds` and `targetThresholds`, could be tuned as per you
 strategy evicts pods from `overutilized nodes` (those with usage above `targetThresholds`) to `underutilized nodes`
 (those with usage below `thresholds`), it will abort if any number of `underutilized nodes` or `overutilized nodes` is zero.
 
+Additionally, the strategy accepts a `useDeviationThresholds` parameter.
+If that parameter is set to `true`, the thresholds are considered as percentage deviations from mean resource usage.
+`thresholds` will be deducted from the mean among all nodes and `targetThresholds` will be added to the mean.
+A resource consumption above (resp. below) this window is considered as overutilization (resp. underutilization).
+
+**NOTE:** Node resource consumption is determined by the requests and limits of pods, not actual usage.
+This approach is chosen in order to maintain consistency with the kube-scheduler, which follows the same
+design for scheduling pods onto nodes. This means that resource usage as reported by Kubelet (or commands
+like `kubectl top`) may differ from the calculated consumption, due to these components reporting
+actual usage metrics. Implementing metrics-based descheduling is currently TODO for the project.
+
 **Parameters:**
 
 |Name|Type|
@@ -225,6 +239,7 @@ strategy evicts pods from `overutilized nodes` (those with usage above `targetTh
 |`thresholds`|map(string:int)|
 |`targetThresholds`|map(string:int)|
 |`numberOfNodes`|int|
+|`useDeviationThresholds`|bool|
 |`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
 |`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
 |`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
@@ -265,10 +280,10 @@ under utilized frequently or for a short period of time. By default, `numberOfNo
 
 ### HighNodeUtilization
 
-This strategy finds nodes that are under utilized and evicts pods from the nodes in the hope that these pods will be 
-scheduled compactly into fewer nodes.  Used in conjunction with node auto-scaling, this strategy is intended to help 
+This strategy finds nodes that are under utilized and evicts pods from the nodes in the hope that these pods will be
+scheduled compactly into fewer nodes.  Used in conjunction with node auto-scaling, this strategy is intended to help
 trigger down scaling of under utilized nodes.
-This strategy **must** be used with the scheduler strategy `MostRequestedPriority`. The parameters of this strategy are 
+This strategy **must** be used with the scheduler scoring strategy `MostAllocated`. The parameters of this strategy are
 configured under `nodeResourceUtilizationThresholds`.
 
 The under utilization of nodes is determined by a configurable threshold `thresholds`. The threshold
@@ -285,6 +300,12 @@ strategy evicts pods from `underutilized nodes` (those with usage below `thresho
 so that they can be recreated in appropriately utilized nodes.
 The strategy will abort if any number of `underutilized nodes` or `appropriately utilized nodes` is zero.
 
+**NOTE:** Node resource consumption is determined by the requests and limits of pods, not actual usage.
+This approach is chosen in order to maintain consistency with the kube-scheduler, which follows the same
+design for scheduling pods onto nodes. This means that resource usage as reported by Kubelet (or commands
+like `kubectl top`) may differ from the calculated consumption, due to these components reporting
+actual usage metrics. Implementing metrics-based descheduling is currently TODO for the project.
+
 **Parameters:**
 
 |Name|Type|
@@ -399,10 +420,17 @@ pod "podA" with a toleration to tolerate a taint ``key=value:NoSchedule`` schedu
 node. If the node's taint is subsequently updated/removed, taint is no longer satisfied by its pods' tolerations
 and will be evicted.
 
+Node taints can be excluded from consideration by specifying a list of excludedTaints. If a node taint key **or**
+key=value matches an excludedTaints entry, the taint will be ignored.
+
+For example, excludedTaints entry "dedicated" would match all taints with key "dedicated", regardless of value.
+excludedTaints entry "dedicated=special-user" would match taints with key "dedicated" and value "special-user".
+
 **Parameters:**
 
 |Name|Type|
 |---|---|
+|`excludedTaints`|list(string)|
 |`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
 |`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
 |`namespaces`|(see [namespace filtering](#namespace-filtering))|
@@ -417,6 +445,10 @@ kind: "DeschedulerPolicy"
 strategies:
   "RemovePodsViolatingNodeTaints":
     enabled: true
+    params:
+      excludedTaints:
+      - dedicated=special-user # exclude taints with key "dedicated" and value "special-user"
+      - reserved # exclude all taints with key "reserved"
 ````
 
 ### RemovePodsViolatingTopologySpreadConstraint
@@ -492,19 +524,24 @@ strategies:
 
 This strategy evicts pods that are older than `maxPodLifeTimeSeconds`.
 
-You can also specify `podStatusPhases` to `only` evict pods with specific `StatusPhases`, currently this parameter is limited
-to `Running` and `Pending`.
+You can also specify `states` parameter to **only** evict pods matching the following conditions:
+  - [Pod Phase](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#pod-phase) status of: `Running`, `Pending`
+  - [Container State Waiting](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-state-waiting) condition of: `PodInitializing`, `ContainerCreating`
+
+If a value for `states` or `podStatusPhases` is not specified,
+Pods in any state (even `Running`) are considered for eviction.
 
 **Parameters:**
 
-|Name|Type|
-|---|---|
-|`maxPodLifeTimeSeconds`|int|
-|`podStatusPhases`|list(string)|
-|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
-|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
-|`namespaces`|(see [namespace filtering](#namespace-filtering))|
-|`labelSelector`|(see [label filtering](#label-filtering))|
+|Name|Type|Notes|
+|---|---|---|
+|`maxPodLifeTimeSeconds`|int||
+|`podStatusPhases`|list(string)|Deprecated in v0.25+ Use `states` instead|
+|`states`|list(string)|Only supported in v0.25+|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))||
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))||
+|`namespaces`|(see [namespace filtering](#namespace-filtering))||
+|`labelSelector`|(see [label filtering](#label-filtering))||
 
 **Example:**
 
@@ -517,8 +554,9 @@ strategies:
      params:
        podLifeTime:
          maxPodLifeTimeSeconds: 86400
-         podStatusPhases:
+         states:
          - "Pending"
+         - "PodInitializing"
 ```
 
 ### RemoveFailedPods
@@ -657,7 +695,7 @@ does not exist, descheduler won't create it and will throw an error.
 
 ### Label filtering
 
-The following strategies can configure a [standard kubernetes labelSelector](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.22/#labelselector-v1-meta)
+The following strategies can configure a [standard kubernetes labelSelector](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.25/#labelselector-v1-meta)
 to filter pods by their labels:
 
 * `PodLifeTime`
@@ -705,8 +743,9 @@ The following strategies accept a `nodeFit` boolean parameter which can optimize
 
  If set to `true` the descheduler will consider whether or not the pods that meet eviction criteria will fit on other nodes before evicting them. If a pod cannot be rescheduled to another node, it will not be evicted. Currently the following criteria are considered when setting `nodeFit` to `true`:
 - A `nodeSelector` on the pod
-- Any `Tolerations` on the pod and any `Taints` on the other nodes
+- Any `tolerations` on the pod and any `taints` on the other nodes
 - `nodeAffinity` on the pod
+- Resource `requests` made by the pod and the resources available on other nodes
 - Whether any of the other nodes are marked as `unschedulable`
 
 E.g.
@@ -716,18 +755,18 @@ apiVersion: "descheduler/v1alpha1"
 kind: "DeschedulerPolicy"
 strategies:
   "LowNodeUtilization":
-     enabled: true
-     params:
-       nodeResourceUtilizationThresholds:
-         thresholds:
-           "cpu" : 20
-           "memory": 20
-           "pods": 20
-         targetThresholds:
-           "cpu" : 50
-           "memory": 50
-           "pods": 50
-        nodeFit: true
+    enabled: true
+    params:
+      nodeFit: true
+      nodeResourceUtilizationThresholds:
+        thresholds:
+          "cpu": 20
+          "memory": 20
+          "pods": 20
+        targetThresholds:
+          "cpu": 50
+          "memory": 50
+          "pods": 50
 ```
 
 Note that node fit filtering references the current pod spec, and not that of it's owner.
@@ -761,6 +800,23 @@ Setting `--v=4` or greater on the Descheduler will log all reasons why any pod i
 Pods subject to a Pod Disruption Budget(PDB) are not evicted if descheduling violates its PDB. The pods
 are evicted by using the eviction subresource to handle PDB.
 
+## High Availability
+
+In High Availability mode, Descheduler starts [leader election](https://github.com/kubernetes/client-go/tree/master/tools/leaderelection) process in Kubernetes. You can activate HA mode
+if you choose to deploy your application as Deployment.
+
+Deployment starts with 1 replica by default. If you want to use more than 1 replica, you must consider
+enable High Availability mode since we don't want to run descheduler pods simultaneously.
+
+### Configure HA Mode
+
+The leader election process can be enabled by setting `--leader-elect` in the CLI. You can also set
+`--set=leaderElection.enabled=true` flag if you are using Helm.
+
+To get best results from HA mode some additional configurations might require:
+* Configure a [podAntiAffinity](https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node) rule if you want to schedule onto a node only if that node is in the same zone as at least one already-running descheduler
+* Set the replica count greater than 1
+
 ## Metrics
 
 | name	| type	| description |
@@ -780,17 +836,19 @@ v0.18 should work with k8s v1.18, v1.17, and v1.16.
 Starting with descheduler release v0.18 the minor version of descheduler matches the minor version of the k8s client
 packages that it is compiled with.
 
-Descheduler  | Supported Kubernetes Version
--------------|-----------------------------
-v0.22        | v1.22
-v0.21        | v1.21
-v0.20        | v1.20
-v0.19        | v1.19
-v0.18        | v1.18
-v0.10        | v1.17
-v0.4-v0.9    | v1.9+
-v0.1-v0.3    | v1.7-v1.8
-
+| Descheduler | Supported Kubernetes Version |
+|-------------|------------------------------|
+| v0.25       | v1.25                        |
+| v0.24       | v1.24                        |
+| v0.23       | v1.23                        |
+| v0.22       | v1.22                        |
+| v0.21       | v1.21                        |
+| v0.20       | v1.20                        |
+| v0.19       | v1.19                        |
+| v0.18       | v1.18                        |
+| v0.10       | v1.17                        |
+| v0.4-v0.9   | v1.9+                        |
+| v0.1-v0.3   | v1.7-v1.8                    |
 
 ## Getting Involved and Contributing
 

charts/descheduler/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: descheduler
-version: 0.23.0
-appVersion: 0.23.0
+version: 0.25.0
+appVersion: 0.25.0
 description: Descheduler for Kubernetes is used to rebalance clusters by evicting pods that can potentially be scheduled on better nodes. In the current implementation, descheduler does not schedule replacement of evicted pods but relies on the default scheduler for that.
 keywords:
 - kubernetes

charts/descheduler/README.md

@@ -43,30 +43,45 @@ The command removes all the Kubernetes components associated with the chart and
 
 The following table lists the configurable parameters of the _descheduler_ chart and their default values.
 
-| Parameter                      | Description                                                                                                           | Default                              |
-| ------------------------------ | --------------------------------------------------------------------------------------------------------------------- | ------------------------------------ |
-| `kind`                         | Use as CronJob or Deployment                                                                                          | `CronJob`                            |
-| `image.repository`             | Docker repository to use                                                                                              | `k8s.gcr.io/descheduler/descheduler` |
-| `image.tag`                    | Docker tag to use                                                                                                     | `v[chart appVersion]`                |
-| `image.pullPolicy`             | Docker image pull policy                                                                                              | `IfNotPresent`                       |
-| `imagePullSecrets`             | Docker repository secrets                                                                                             | `[]`                                 |
-| `nameOverride`                 | String to partially override `descheduler.fullname` template (will prepend the release name)                          | `""`                                 |
-| `fullnameOverride`             | String to fully override `descheduler.fullname` template                                                              | `""`                                 |
-| `cronJobApiVersion`            | CronJob API Group Version                                                                                             | `"batch/v1"`                         |
-| `schedule`                     | The cron schedule to run the _descheduler_ job on                                                                     | `"*/2 * * * *"`                      |
-| `startingDeadlineSeconds`      | If set, configure `startingDeadlineSeconds` for the _descheduler_ job                                                 | `nil`                                |
-| `successfulJobsHistoryLimit`   | If set, configure `successfulJobsHistoryLimit` for the _descheduler_ job                                              | `nil`                                |
-| `failedJobsHistoryLimit`       | If set, configure `failedJobsHistoryLimit` for the _descheduler_ job                                                  | `nil`                                |
-| `deschedulingInterval`         | If using kind:Deployment, sets time between consecutive descheduler executions.                                       | `5m`                                 |
-| `cmdOptions`                   | The options to pass to the _descheduler_ command                                                                      | _see values.yaml_                    |
-| `deschedulerPolicy.strategies` | The _descheduler_ strategies to apply                                                                                 | _see values.yaml_                    |
-| `priorityClassName`            | The name of the priority class to add to pods                                                                         | `system-cluster-critical`            |
-| `rbac.create`                  | If `true`, create & use RBAC resources                                                                                | `true`                               |
-| `podSecurityPolicy.create`     | If `true`, create PodSecurityPolicy                                                                                   | `true`                               |
-| `resources`                    | Descheduler container CPU and memory requests/limits                                                                  | _see values.yaml_                    |
-| `serviceAccount.create`        | If `true`, create a service account for the cron job                                                                  | `true`                               |
-| `serviceAccount.name`          | The name of the service account to use, if not set and create is true a name is generated using the fullname template | `nil`                                |
-| `nodeSelector`                 | Node selectors to run the descheduler cronjob on specific nodes                                                       | `nil`                                |
-| `tolerations`                  | tolerations to run the descheduler cronjob on specific nodes                                                          | `nil`                                |
-| `suspend`                      | Set spec.suspend in descheduler cronjob                                                                               | `false`                              |
-| `commonLabels`                 | Labels to apply to all resources                                                                                      | `{}`                                 |
+| Parameter                           | Description                                                                                                           | Default                              |
+|-------------------------------------|-----------------------------------------------------------------------------------------------------------------------|--------------------------------------|
+| `kind`                              | Use as CronJob or Deployment                                                                                          | `CronJob`                            |
+| `image.repository`                  | Docker repository to use                                                                                              | `k8s.gcr.io/descheduler/descheduler` |
+| `image.tag`                         | Docker tag to use                                                                                                     | `v[chart appVersion]`                |
+| `image.pullPolicy`                  | Docker image pull policy                                                                                              | `IfNotPresent`                       |
+| `imagePullSecrets`                  | Docker repository secrets                                                                                             | `[]`                                 |
+| `nameOverride`                      | String to partially override `descheduler.fullname` template (will prepend the release name)                          | `""`                                 |
+| `fullnameOverride`                  | String to fully override `descheduler.fullname` template                                                              | `""`                                 |
+| `cronJobApiVersion`                 | CronJob API Group Version                                                                                             | `"batch/v1"`                         |
+| `schedule`                          | The cron schedule to run the _descheduler_ job on                                                                     | `"*/2 * * * *"`                      |
+| `startingDeadlineSeconds`           | If set, configure `startingDeadlineSeconds` for the _descheduler_ job                                                 | `nil`                                |
+| `successfulJobsHistoryLimit`        | If set, configure `successfulJobsHistoryLimit` for the _descheduler_ job                                              | `nil`                                |
+| `failedJobsHistoryLimit`            | If set, configure `failedJobsHistoryLimit` for the _descheduler_ job                                                  | `nil`                                |
+| `deschedulingInterval`              | If using kind:Deployment, sets time between consecutive descheduler executions.                                       | `5m`                                 |
+| `replicas`                          | The replica count for Deployment                                                                                      | `1`                                  |
+| `leaderElection`                    | The options for high availability when running replicated components                                                  | _see values.yaml_                    |
+| `cmdOptions`                        | The options to pass to the _descheduler_ command                                                                      | _see values.yaml_                    |
+| `deschedulerPolicy.strategies`      | The _descheduler_ strategies to apply                                                                                 | _see values.yaml_                    |
+| `priorityClassName`                 | The name of the priority class to add to pods                                                                         | `system-cluster-critical`            |
+| `rbac.create`                       | If `true`, create & use RBAC resources                                                                                | `true`                               |
+| `resources`                         | Descheduler container CPU and memory requests/limits                                                                  | _see values.yaml_                    |
+| `serviceAccount.create`             | If `true`, create a service account for the cron job                                                                  | `true`                               |
+| `serviceAccount.name`               | The name of the service account to use, if not set and create is true a name is generated using the fullname template | `nil`                                |
+| `serviceAccount.annotations`        | Specifies custom annotations for the serviceAccount                                                                   | `{}`                                 |
+| `podAnnotations`                    | Annotations to add to the descheduler Pods                                                                            | `{}`                                 |
+| `podLabels`                         | Labels to add to the descheduler Pods                                                                                 | `{}`                                 |
+| `nodeSelector`                      | Node selectors to run the descheduler cronjob/deployment on specific nodes                                            | `nil`                                |
+| `service.enabled`                   | If `true`, create a service for deployment                                                                            | `false`                              |
+| `serviceMonitor.enabled`            | If `true`, create a ServiceMonitor for deployment                                                                     | `false`                              |
+| `serviceMonitor.namespace`          | The namespace where Prometheus expects to find service monitors                                                       | `nil`                                |
+| `serviceMonitor.interval`           | The scrape interval. If not set, the Prometheus default scrape interval is used                                       | `nil`                                |
+| `serviceMonitor.honorLabels`        | Keeps the scraped data's labels when labels are on collisions with target labels.                                     | `true`                               |
+| `serviceMonitor.insecureSkipVerify` | Skip TLS certificate validation when scraping                                                                         | `true`                               |
+| `serviceMonitor.serverName`         | Name of the server to use when validating TLS certificate                                                             | `nil`                                |
+| `serviceMonitor.metricRelabelings`  | MetricRelabelConfigs to apply to samples after scraping, but before ingestion                                         | `[]`                                 |
+| `serviceMonitor.relabelings`        | RelabelConfigs to apply to samples before scraping                                                                    | `[]`                                 |
+| `affinity`                          | Node affinity to run the descheduler cronjob/deployment on specific nodes                                             | `nil`                                |
+| `tolerations`                       | tolerations to run the descheduler cronjob/deployment on specific nodes                                               | `nil`                                |
+| `suspend`                           | Set spec.suspend in descheduler cronjob                                                                               | `false`                              |
+| `commonLabels`                      | Labels to apply to all resources                                                                                      | `{}`                                 |
+| `livenessProbe`                     | Liveness probe configuration for the descheduler container                                                            | _see values.yaml_                    |

charts/descheduler/templates/NOTES.txt

@@ -1 +1,7 @@
-Descheduler installed as a {{ .Values.kind }} .
+Descheduler installed as a {{ .Values.kind }}.
+
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.replicas 1.0}}
+WARNING: You set replica count as 1 and workload kind as Deployment however leaderElection is not enabled. Consider enabling Leader Election for HA mode.
+{{- end}}
+{{- end}}

charts/descheduler/templates/_helpers.tpl

@@ -65,3 +65,30 @@ Create the name of the service account to use
     {{ default "default" .Values.serviceAccount.name }}
 {{- end -}}
 {{- end -}}
+
+{{/*
+Leader Election
+*/}}
+{{- define "descheduler.leaderElection"}}
+{{- if .Values.leaderElection -}}
+- --leader-elect={{ .Values.leaderElection.enabled }}
+{{- if .Values.leaderElection.leaseDuration }}
+- --leader-elect-lease-duration={{ .Values.leaderElection.leaseDuration }}
+{{- end }}
+{{- if .Values.leaderElection.renewDeadline }}
+- --leader-elect-renew-deadline={{ .Values.leaderElection.renewDeadline }}
+{{- end }}
+{{- if .Values.leaderElection.retryPeriod }}
+- --leader-elect-retry-period={{ .Values.leaderElection.retryPeriod }}
+{{- end }}
+{{- if .Values.leaderElection.resourceLock }}
+- --leader-elect-resource-lock={{ .Values.leaderElection.resourceLock }}
+{{- end }}
+{{- if .Values.leaderElection.resourceName }}
+- --leader-elect-resource-name={{ .Values.leaderElection.resourceName }}
+{{- end }}
+{{- if .Values.leaderElection.resourceNamescape }}
+- --leader-elect-resource-namespace={{ .Values.leaderElection.resourceNamescape }}
+{{- end -}}
+{{- end }}
+{{- end }}

charts/descheduler/templates/clusterrole.yaml

@@ -14,7 +14,7 @@ rules:
   verbs: ["get", "watch", "list"]
 - apiGroups: [""]
   resources: ["namespaces"]
-  verbs: ["get", "list"]
+  verbs: ["get", "watch", "list"]
 - apiGroups: [""]
   resources: ["pods"]
   verbs: ["get", "watch", "list", "delete"]
@@ -24,11 +24,13 @@ rules:
 - apiGroups: ["scheduling.k8s.io"]
   resources: ["priorityclasses"]
   verbs: ["get", "watch", "list"]
-{{- if .Values.podSecurityPolicy.create }}
-- apiGroups: ['policy']
-  resources: ['podsecuritypolicies']
-  verbs:     ['use']
-  resourceNames:
-  - {{ template "descheduler.fullname" . }}
+{{- if .Values.leaderElection.enabled }}
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  verbs: ["create", "update"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  resourceNames: ["{{ .Values.leaderElection.resourceName | default "descheduler" }}"]
+  verbs: ["get", "patch", "delete"]
 {{- end }}
 {{- end -}}

charts/descheduler/templates/configmap.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "descheduler.labels" . | nindent 4 }}
 data:

charts/descheduler/templates/cronjob.yaml

@@ -3,6 +3,7 @@ apiVersion: {{ .Values.cronJobApiVersion | default "batch/v1" }}
 kind: CronJob
 metadata:
   name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "descheduler.labels" . | nindent 4 }}
 spec:

charts/descheduler/templates/deployment.yaml

@@ -3,10 +3,18 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "descheduler.labels" . | nindent 4 }}
 spec:
+  {{- if gt .Values.replicas 1.0}}
+  {{- if not .Values.leaderElection.enabled }}
+  {{- fail "You must set leaderElection to use more than 1 replica"}}
+  {{- end}}
+  replicas: {{ required "leaderElection required for running more than one replica" .Values.replicas }}
+  {{- else }}
   replicas: 1
+  {{- end }}
   selector:
     matchLabels:
       {{- include "descheduler.selectorLabels" . | nindent 6 }}
@@ -27,6 +35,10 @@ spec:
       priorityClassName: {{ .Values.priorityClassName }}
       {{- end }}
       serviceAccountName: {{ template "descheduler.serviceAccountName" . }}
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+      {{- toYaml . | nindent 10 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (printf "v%s" .Chart.AppVersion) }}"
@@ -44,6 +56,7 @@ spec:
             - {{ $value | quote }}
             {{- end }}
             {{- end }}
+            {{- include "descheduler.leaderElection" . | nindent 12 }}
           ports:
             - containerPort: 10258
               protocol: TCP

charts/descheduler/templates/podsecuritypolicy.yaml

@@ -1,38 +0,0 @@
-{{- if .Values.podSecurityPolicy.create -}}
-apiVersion: policy/v1beta1
-kind: PodSecurityPolicy
-metadata:
-  name: {{ template "descheduler.fullname" . }}
-  annotations:
-    seccomp.security.alpha.kubernetes.io/allowedProfileNames: 'docker/default,runtime/default'
-    seccomp.security.alpha.kubernetes.io/defaultProfileName:  'runtime/default'
-spec:
-  privileged: false
-  allowPrivilegeEscalation: false
-  requiredDropCapabilities:
-    - ALL
-  volumes:
-    - 'configMap'
-    - 'secret'
-  hostNetwork: false
-  hostIPC: false
-  hostPID: false
-  runAsUser:
-    rule: 'MustRunAs'
-    ranges:
-      - min: 1
-        max: 65535
-  seLinux:
-    rule: 'RunAsAny'
-  supplementalGroups:
-    rule: 'MustRunAs'
-    ranges:
-      - min: 1
-        max: 65535
-  fsGroup:
-    rule: 'MustRunAs'
-    ranges:
-      - min: 1
-        max: 65535
-  readOnlyRootFilesystem: true
-{{- end -}}

charts/descheduler/templates/service.yaml

@@ -0,0 +1,21 @@
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.service.enabled true }}
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+  name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  clusterIP: None
+  ports:
+  - name: http-metrics
+    port: 10258
+    protocol: TCP
+    targetPort: 10258
+  selector:
+    {{- include "descheduler.selectorLabels" . | nindent 4 }}
+  type: ClusterIP
+{{- end }}
+{{- end }}

charts/descheduler/templates/serviceaccount.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: {{ template "descheduler.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "descheduler.labels" . | nindent 4 }}
 {{- if .Values.serviceAccount.annotations }}

charts/descheduler/templates/servicemonitor.yaml

@@ -0,0 +1,41 @@
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.serviceMonitor.enabled true }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "descheduler.fullname" . }}-servicemonitor
+  namespace: {{ .Values.serviceMonitor.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+spec:
+  jobLabel: jobLabel
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{- include "descheduler.selectorLabels" . | nindent 6 }}
+  endpoints:
+  - honorLabels: {{ .Values.serviceMonitor.honorLabels | default true }}
+    port: http-metrics
+    {{- if .Values.serviceMonitor.interval }}
+    interval: {{ .Values.serviceMonitor.interval }}
+    {{- end }}
+    scheme: https
+    tlsConfig:
+      {{- if eq .Values.serviceMonitor.insecureSkipVerify true }}
+      insecureSkipVerify: true
+      {{- end }}
+      {{- if .Values.serviceMonitor.serverName }}
+      serverName: {{ .Values.serviceMonitor.serverName }}
+      {{- end}}
+{{- if .Values.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+{{ tpl (toYaml .Values.serviceMonitor.metricRelabelings | indent 4) . }}
+{{- end }}
+{{- if .Values.serviceMonitor.relabelings }}
+    relabelings:
+{{ tpl (toYaml .Values.serviceMonitor.relabelings | indent 4) . }}
+{{- end }}
+{{- end }}
+{{- end }}

charts/descheduler/templates/tests/test-descheduler-pod.yaml

@@ -1,29 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-    name: descheduler-test-pod
-    annotations:
-      "helm.sh/hook": test
-spec:
-    restartPolicy: Never
-    serviceAccountName: descheduler-ci
-    containers:
-      - name: descheduler-test-container
-        image: alpine:latest
-        imagePullPolicy: IfNotPresent
-        securityContext:
-            allowPrivilegeEscalation: false
-            capabilities:
-              drop:
-                - All
-            privileged: false
-            runAsNonRoot: false 
-        command: ["/bin/ash"]
-        args:
-          - -c
-          - >-
-            apk --no-cache add curl &&
-            curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl &&
-            chmod +x ./kubectl &&
-            mv ./kubectl /usr/local/bin/kubectl &&
-            /usr/local/bin/kubectl get pods --namespace kube-system --token "$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" | grep "descheduler" | grep "Completed"

charts/descheduler/values.yaml

@@ -11,7 +11,8 @@ image:
   tag: ""
   pullPolicy: IfNotPresent
 
-imagePullSecrets: []
+imagePullSecrets:
+#   - name: container-registry-secret
 
 resources:
   requests:
@@ -27,26 +28,51 @@ fullnameOverride: ""
 # labels that'll be applied to all resources
 commonLabels: {}
 
-cronJobApiVersion: "batch/v1"  # Use "batch/v1beta1" for k8s version < 1.21.0. TODO(@7i) remove with 1.23 release
+cronJobApiVersion: "batch/v1"
 schedule: "*/2 * * * *"
 suspend: false
-#startingDeadlineSeconds: 200
-#successfulJobsHistoryLimit: 1
-#failedJobsHistoryLimit: 1
+# startingDeadlineSeconds: 200
+# successfulJobsHistoryLimit: 1
+# failedJobsHistoryLimit: 1
 
 # Required when running as a Deployment
 deschedulingInterval: 5m
 
+# Specifies the replica count for Deployment
+# Set leaderElection if you want to use more than 1 replica
+# Set affinity.podAntiAffinity rule if you want to schedule onto a node
+# only if that node is in the same zone as at least one already-running descheduler
+replicas: 1
+
+# Specifies whether Leader Election resources should be created
+# Required when running as a Deployment
+leaderElection: {}
+#  enabled: true
+#  leaseDuration: 15s
+#  renewDeadline: 10s
+#  retryPeriod: 2s
+#  resourceLock: "leases"
+#  resourceName: "descheduler"
+#  resourceNamescape: "kube-system"
+
 cmdOptions:
   v: 3
-  # evict-local-storage-pods:
-  # max-pods-to-evict-per-node: 10
-  # node-selector: "key1=value1,key2=value2"
 
 deschedulerPolicy:
+  # nodeSelector: "key1=value1,key2=value2"
+  # maxNoOfPodsToEvictPerNode: 10
+  # maxNoOfPodsToEvictPerNamespace: 10
+  # ignorePvcPods: true
+  # evictLocalStoragePods: true
   strategies:
     RemoveDuplicates:
       enabled: true
+    RemovePodsHavingTooManyRestarts:
+      enabled: true
+      params:
+        podsHavingTooManyRestarts:
+          podRestartThreshold: 100
+          includingInitContainers: true
     RemovePodsViolatingNodeTaints:
       enabled: true
     RemovePodsViolatingNodeAffinity:
@@ -56,6 +82,10 @@ deschedulerPolicy:
         - requiredDuringSchedulingIgnoredDuringExecution
     RemovePodsViolatingInterPodAntiAffinity:
       enabled: true
+    RemovePodsViolatingTopologySpreadConstraint:
+      enabled: true
+      params:
+        includeSoftConstraints: false
     LowNodeUtilization:
       enabled: true
       params:
@@ -84,7 +114,15 @@ affinity: {}
 #         values:
 #         - e2e-az1
 #         - e2e-az2
-
+#  podAntiAffinity:
+#    requiredDuringSchedulingIgnoredDuringExecution:
+#      - labelSelector:
+#          matchExpressions:
+#            - key: app.kubernetes.io/name
+#              operator: In
+#              values:
+#                - descheduler
+#        topologyKey: "kubernetes.io/hostname"
 tolerations: []
 # - key: 'management'
 #   operator: 'Equal'
@@ -95,10 +133,6 @@ rbac:
   # Specifies whether RBAC resources should be created
   create: true
 
-podSecurityPolicy:
-  # Specifies whether PodSecurityPolicy should be created.
-  create: true
-
 serviceAccount:
   # Specifies whether a ServiceAccount should be created
   create: true
@@ -108,6 +142,10 @@ serviceAccount:
   # Specifies custom annotations for the serviceAccount
   annotations: {}
 
+podAnnotations: {}
+
+podLabels: {}
+
 livenessProbe:
   failureThreshold: 3
   httpGet:
@@ -117,3 +155,25 @@ livenessProbe:
   initialDelaySeconds: 3
   periodSeconds: 10
 
+service:
+  enabled: false
+
+serviceMonitor:
+  enabled: false
+  # The namespace where Prometheus expects to find service monitors.
+  # namespace: ""
+  interval: ""
+  # honorLabels: true
+  insecureSkipVerify: true
+  serverName: null
+  metricRelabelings: []
+    # - action: keep
+    #   regex: 'descheduler_(build_info|pods_evicted)'
+    #   sourceLabels: [__name__]
+  relabelings: []
+    # - sourceLabels: [__meta_kubernetes_pod_node_name]
+    #   separator: ;
+    #   regex: ^(.*)$
+    #   targetLabel: nodename
+    #   replacement: $1
+    #   action: replace

cloudbuild.yaml

@@ -1,7 +1,7 @@
 # See https://cloud.google.com/cloud-build/docs/build-config
 
 # this must be specified in seconds. If omitted, defaults to 600s (10 mins)
-timeout: 1200s
+timeout: 1500s
 # this prevents errors if you don't use both _GIT_TAG and _PULL_BASE_REF,
 # or any new substitutions added in the future.
 options:

cmd/descheduler/app/options/options.go

@@ -18,11 +18,14 @@ limitations under the License.
 package options
 
 import (
-	"github.com/spf13/pflag"
+	"time"
 
+	"github.com/spf13/pflag"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	apiserveroptions "k8s.io/apiserver/pkg/server/options"
 	clientset "k8s.io/client-go/kubernetes"
-
+	componentbaseconfig "k8s.io/component-base/config"
+	componentbaseoptions "k8s.io/component-base/config/options"
 	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/apis/componentconfig/v1alpha1"
 	deschedulerscheme "sigs.k8s.io/descheduler/pkg/descheduler/scheme"
@@ -37,6 +40,7 @@ type DeschedulerServer struct {
 	componentconfig.DeschedulerConfiguration
 
 	Client         clientset.Interface
+	EventClient    clientset.Interface
 	SecureServing  *apiserveroptions.SecureServingOptionsWithLoopback
 	DisableMetrics bool
 }
@@ -58,7 +62,17 @@ func NewDeschedulerServer() (*DeschedulerServer, error) {
 }
 
 func newDefaultComponentConfig() (*componentconfig.DeschedulerConfiguration, error) {
-	versionedCfg := v1alpha1.DeschedulerConfiguration{}
+	versionedCfg := v1alpha1.DeschedulerConfiguration{
+		LeaderElection: componentbaseconfig.LeaderElectionConfiguration{
+			LeaderElect:       false,
+			LeaseDuration:     metav1.Duration{Duration: 137 * time.Second},
+			RenewDeadline:     metav1.Duration{Duration: 107 * time.Second},
+			RetryPeriod:       metav1.Duration{Duration: 26 * time.Second},
+			ResourceLock:      "leases",
+			ResourceName:      "descheduler",
+			ResourceNamespace: "kube-system",
+		},
+	}
 	deschedulerscheme.Scheme.Default(&versionedCfg)
 	cfg := componentconfig.DeschedulerConfiguration{}
 	if err := deschedulerscheme.Scheme.Convert(&versionedCfg, &cfg, nil); err != nil {
@@ -69,12 +83,14 @@ func newDefaultComponentConfig() (*componentconfig.DeschedulerConfiguration, err
 
 // AddFlags adds flags for a specific SchedulerServer to the specified FlagSet
 func (rs *DeschedulerServer) AddFlags(fs *pflag.FlagSet) {
-	fs.StringVar(&rs.Logging.Format, "logging-format", "text", `Sets the log format. Permitted formats: "text", "json". Non-default formats don't honor these flags: --add-dir-header, --alsologtostderr, --log-backtrace-at, --log-dir, --log-file, --log-file-max-size, --logtostderr, --skip-headers, --skip-log-headers, --stderrthreshold, --log-flush-frequency.\nNon-default choices are currently alpha and subject to change without warning.`)
+	fs.StringVar(&rs.Logging.Format, "logging-format", "text", `Sets the log format. Permitted formats: "text", "json". Non-default formats don't honor these flags: --add-dir-header, --alsologtostderr, --log-backtrace-at, --log_dir, --log_file, --log_file_max_size, --logtostderr, --skip-headers, --skip-log-headers, --stderrthreshold, --log-flush-frequency.\nNon-default choices are currently alpha and subject to change without warning.`)
 	fs.DurationVar(&rs.DeschedulingInterval, "descheduling-interval", rs.DeschedulingInterval, "Time interval between two consecutive descheduler executions. Setting this value instructs the descheduler to run in a continuous loop at the interval specified.")
 	fs.StringVar(&rs.KubeconfigFile, "kubeconfig", rs.KubeconfigFile, "File with  kube configuration.")
 	fs.StringVar(&rs.PolicyConfigFile, "policy-config-file", rs.PolicyConfigFile, "File with descheduler policy configuration.")
 	fs.BoolVar(&rs.DryRun, "dry-run", rs.DryRun, "execute descheduler in dry run mode.")
 	fs.BoolVar(&rs.DisableMetrics, "disable-metrics", rs.DisableMetrics, "Disables metrics. The metrics are by default served through https://localhost:10258/metrics. Secure address, resp. port can be changed through --bind-address, resp. --secure-port flags.")
 
+	componentbaseoptions.BindLeaderElectionFlags(&rs.LeaderElection, fs)
+
 	rs.SecureServing.AddFlags(fs)
 }

cmd/descheduler/app/server.go

@@ -33,9 +33,8 @@ import (
 	apiserver "k8s.io/apiserver/pkg/server"
 	"k8s.io/apiserver/pkg/server/mux"
 	restclient "k8s.io/client-go/rest"
-	"k8s.io/component-base/config"
+	registry "k8s.io/component-base/logs/api/v1"
 	_ "k8s.io/component-base/logs/json/register"
-	"k8s.io/component-base/logs/registry"
 	"k8s.io/component-base/metrics/legacyregistry"
 	"k8s.io/klog/v2"
 )
@@ -62,18 +61,20 @@ func NewDeschedulerCommand(out io.Writer) *cobra.Command {
 				klog.ErrorS(err, "failed to apply secure server configuration")
 				return
 			}
-
-			factory, _ := registry.LogRegistry.Get(s.Logging.Format)
+			var factory registry.LogFormatFactory
 			if factory == nil {
 				klog.ClearLogger()
 			} else {
-				log, logrFlush := factory.Create(config.FormatOptions{})
+				log, logrFlush := factory.Create(registry.LoggingConfiguration{
+					Format: s.Logging.Format,
+				})
+
 				defer logrFlush()
 				klog.SetLogger(log)
 			}
 
 			ctx, done := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
-			defer done()
+
 			pathRecorderMux := mux.NewPathRecorderMux("descheduler")
 			if !s.DisableMetrics {
 				pathRecorderMux.Handle("/metrics", legacyregistry.HandlerWithReset())
@@ -81,15 +82,20 @@ func NewDeschedulerCommand(out io.Writer) *cobra.Command {
 
 			healthz.InstallHandler(pathRecorderMux, healthz.NamedCheck("Descheduler", healthz.PingHealthz.Check))
 
-			if _, err := SecureServing.Serve(pathRecorderMux, 0, ctx.Done()); err != nil {
+			stoppedCh, _, err := SecureServing.Serve(pathRecorderMux, 0, ctx.Done())
+			if err != nil {
 				klog.Fatalf("failed to start secure server: %v", err)
 				return
 			}
 
-			err := Run(ctx, s)
+			err = Run(ctx, s)
 			if err != nil {
 				klog.ErrorS(err, "descheduler server")
 			}
+
+			done()
+			// wait for metrics server to close
+			<-stoppedCh
 		},
 	}
 	cmd.SetOut(out)

docs/contributor-guide.md

@@ -31,7 +31,7 @@ View all CLI options.
 ## Run Tests
 ```
 GOOS=linux make dev-image
-kind create cluster --config hack/kind_config.yaml
+make kind-multi-node
 kind load docker-image <image name>
 kind get kubeconfig > /tmp/admin.conf
 export KUBECONFIG=/tmp/admin.conf
@@ -39,17 +39,31 @@ make test-unit
 make test-e2e
 ```
 
-## Run Helm Tests
-Run the helm test for a particular descheduler release by setting below variables,
-```
-HELM_IMAGE_REPO="descheduler"
-HELM_IMAGE_TAG="helm-test"
-HELM_CHART_LOCATION="./charts/descheduler"
-```
-The helm tests runs as part of descheduler CI. But, to run it manually from the descheduler root,
+
+## Build Helm Package locally
+
+If you made some changes in the chart, and just want to check if templating is ok, or if the chart is buildable, you can run this command to have a package built from the `./charts` directory.
 
 ```
-make test-helm
+make build-helm
+```
+
+## Lint Helm Chart locally
+
+To check linting of your changes in the helm chart locally you can run:
+
+```
+make lint-helm
+```
+
+## Test helm changes locally with kind and ct
+
+You will need kind and docker (or equivalent) installed. We can use ct public image to avoid installing ct and all its dependencies.
+
+
+```
+make kind-multi-node
+make ct-helm
 ```
 
 ### Miscellaneous

docs/proposals.md

@@ -0,0 +1,16 @@
+# Proposals
+This document walk you through about all the enhancements proposals for descheduler.
+
+## Descheduler v1alpha2 Design Proposal
+```yaml
+title: Descheduler v1alpha2 Design Proposal
+authors:
+- "@damemi"
+link: 
+- https://docs.google.com/document/d/1S1JCh-0F-QCJvBBG-kbmXiHAJFF8doArhDIAKbOj93I/edit#heading=h.imbp1ctnc8lx
+- https://github.com/kubernetes-sigs/descheduler/issues/679
+owning-sig: sig-scheduling
+creation-date: 2021-05-01
+status: implementable
+```
+

docs/release-guide.md

@@ -1,36 +1,82 @@
 # Release Guide
 
-## Container Image
+The process for publishing each Descheduler release includes a mixture of manual and automatic steps. Over 
+time, it would be good to automate as much of this process as possible. However, due to current limitations there 
+is care that must be taken to perform each manual step precisely so that the automated steps execute properly.
 
-### Semi-automatic
+## Pre-release Code Changes
 
-1. Make sure your repo is clean by git's standards
-2. Create a release branch `git checkout -b release-1.18` (not required for patch releases)
-3. Push the release branch to the descheuler repo and ensure branch protection is enabled (not required for patch releases)
-4. Tag the repository from the `master` branch (from the `release-1.18` branch for a patch release) and push the tag `VERSION=v0.18.0 git tag -m $VERSION $VERSION; git push origin $VERSION`
-5. Publish a draft release using the tag you just created
-6. Perform the [image promotion process](https://github.com/kubernetes/k8s.io/tree/main/k8s.gcr.io#image-promoter)
-7. Publish release
-8. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+Before publishing each release, the following code updates must be made:
 
-### Manual
+- [ ] (Optional, but recommended) Bump `k8s.io` dependencies to the `-rc` tags. These tags are usually published around upstream code freeze. [Example](https://github.com/kubernetes-sigs/descheduler/pull/539)
+- [ ] Bump `k8s.io` dependencies to GA tags once they are published (following the upstream release). [Example](https://github.com/kubernetes-sigs/descheduler/pull/615)
+- [ ] Ensure that Go is updated to the same version as upstream. [Example](https://github.com/kubernetes-sigs/descheduler/pull/801)
+- [ ] Make CI changes in [github.com/kubernetes/test-infra](https://github.com/kubernetes/test-infra) to add the new version's tests (note, this may also include a Go bump). [Example](https://github.com/kubernetes/test-infra/pull/25833)
+- [ ] Update local CI versions for utils (such as golang-ci), kind, and go. [Example - e2e](https://github.com/kubernetes-sigs/descheduler/commit/ac4d576df8831c0c399ee8fff1e85469e90b8c44), [Example - helm](https://github.com/kubernetes-sigs/descheduler/pull/821)
+- [ ] Update version references in docs and Readme. [Example](https://github.com/kubernetes-sigs/descheduler/pull/617)
 
-1. Make sure your repo is clean by git's standards
-2. Create a release branch `git checkout -b release-1.18` (not required for patch releases)
-3. Push the release branch to the descheuler repo and ensure branch protection is enabled (not required for patch releases)
-4. Tag the repository from the `master` branch (from the `release-1.18` branch for a patch release) and push the tag `VERSION=v0.18.0 git tag -m $VERSION $VERSION; git push origin $VERSION`
-5. Checkout the tag you just created and make sure your repo is clean by git's standards `git checkout $VERSION`
-6. Build and push the container image to the staging registry `VERSION=$VERSION make push-all`
-7. Publish a draft release using the tag you just created
-8. Perform the [image promotion process](https://github.com/kubernetes/k8s.io/tree/main/k8s.gcr.io#image-promoter)
-9. Publish release
-10. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+## Release Process
 
-### Notes
-It's important to create the tag on the master branch after creating the release-* branch so that the [Helm releaser-action](#helm-chart) can work.
-It compares the changes in the action-triggering branch to the latest tag on that branch, so if you tag before creating the new branch there
-will be nothing to compare and it will fail (creating a new release branch usually involves no code changes). For this same reason, you should
-also tag patch releases (on the release-* branch) *after* pushing changes (if those changes involve bumping the Helm chart version).
+When the above pre-release steps are complete and the release is ready to be cut, perform the following steps **in order** 
+(the flowchart below demonstrates these steps):
+
+**Version release**
+1. Create the `git tag` on `master` for the release, eg `v0.24.0`
+2. Merge Helm chart version update to `master` (see [Helm chart](#helm-chart) below). [Example](https://github.com/kubernetes-sigs/descheduler/pull/709)
+3. Perform the [image promotion process](https://github.com/kubernetes/k8s.io/tree/main/k8s.gcr.io#image-promoter). [Example](https://github.com/kubernetes/k8s.io/pull/3344)
+4. Cut release branch from `master`, eg `release-1.24`
+5. Publish release using Github's release process from the git tag you created
+6. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+**Patch release**
+1. Pick relevant code change commits to the matching release branch, eg `release-1.24`
+2. Create the patch tag on the release branch, eg `v0.24.1` on `release-1.24`
+3. Merge Helm chart version update to release branch
+4. Perform the image promotion process for the patch version
+5. Publish release using Github's release process from the git tag you created
+6. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+### Flowchart
+
+![Flowchart for major and patch releases](release-process.png)
+
+### Image promotion process
+
+Every merge to any branch triggers an [image build and push](https://github.com/kubernetes/test-infra/blob/c36b8e5/config/jobs/image-pushing/k8s-staging-descheduler.yaml) to a `gcr.io` repository. 
+These automated image builds are snapshots of the code in place at the time of every PR merge and 
+tagged with the latest git SHA at the time of the build. To create a final release image, the desired 
+auto-built image SHA is added to a [file upstream](https://github.com/kubernetes/k8s.io/blob/e9e971c/k8s.gcr.io/images/k8s-staging-descheduler/images.yaml) which 
+copies that image to a public registry.
+
+Automatic builds can be monitored and re-triggered with the [`post-descheduler-push-images` job](https://prow.k8s.io/?job=post-descheduler-push-images) on prow.k8s.io.
+
+Note that images can also be manually built and pushed using `VERSION=$VERSION make push-all` by [users with access](https://github.com/kubernetes/k8s.io/blob/fbee8f67b70304241e613a672c625ad972998ad7/groups/sig-scheduling/groups.yaml#L33-L43).
+
+## Helm Chart
+We currently use the [chart-releaser-action GitHub Action](https://github.com/helm/chart-releaser-action) to automatically 
+publish [Helm chart releases](https://github.com/kubernetes-sigs/descheduler/blob/022e07c/.github/workflows/release.yaml). 
+This action is triggered when it detects any changes to [`Chart.yaml`](https://github.com/kubernetes-sigs/descheduler/blob/022e07c27853fade6d1304adc0a6ebe02642386c/charts/descheduler/Chart.yaml) on 
+a `release-*` branch.
+
+Helm chart releases are managed by a separate set of git tags that are prefixed with `descheduler-helm-chart-*`. Example git tag name is `descheduler-helm-chart-0.18.0`.
+Released versions of the helm charts are stored in the `gh-pages` branch of this repo.
+
+The major and minor version of the chart matches the descheduler major and minor versions. For example descheduler helm chart version helm-descheduler-chart-0.18.0 corresponds
+to descheduler version v0.18.0. The patch version of the descheduler helm chart and the patcher version of the descheduler will not necessarily match. The patch
+version of the descheduler helm chart is used to version changes specific to the helm chart.
+
+1. Merge all helm chart changes into the master branch before the release is tagged/cut
+   1. Ensure that `appVersion` in file `charts/descheduler/Chart.yaml` matches the descheduler version(no `v` prefix)
+   2. Ensure that `version` in file `charts/descheduler/Chart.yaml` has been incremented. This is the chart version.
+2. Make sure your repo is clean by git's standards
+3. Follow the release-branch or patch release tagging pattern from the above section.
+4. Verify the new helm artifact has been successfully pushed to the `gh-pages` branch
+
+## Notes
+The Helm releaser-action compares the changes in the action-triggering branch to the latest tag on that branch, so if you tag before creating the new branch there
+will be nothing to compare and it will fail. This is why it's necessary to tag, eg, `v0.24.0` *before* making the changes to the 
+Helm chart version, so that there is a new diff for the action to find. (Tagging *after* making the Helm chart changes would 
+also work, but then the code that gets built into the promoted image will be tagged as `descheduler-helm-chart-xxx` rather than `v0.xx.0`).
 
 See [post-descheduler-push-images dashboard](https://testgrid.k8s.io/sig-scheduling#post-descheduler-push-images) for staging registry image build job status.
 
@@ -56,19 +102,3 @@ Pull image from the staging registry.
 ```
 docker pull gcr.io/k8s-staging-descheduler/descheduler:v20200206-0.9.0-94-ge2a23f284
 ```
-
-## Helm Chart
-Helm chart releases are managed by a separate set of git tags that are prefixed with `descheduler-helm-chart-*`. Example git tag name is `descheduler-helm-chart-0.18.0`.
-Released versions of the helm charts are stored in the `gh-pages` branch of this repo. The [chart-releaser-action GitHub Action](https://github.com/helm/chart-releaser-action)
-is setup to build and push the helm charts to the `gh-pages` branch when changes are pushed to a `release-*` branch.
-
-The major and minor version of the chart matches the descheduler major and minor versions. For example descheduler helm chart version helm-descheduler-chart-0.18.0 corresponds
-to descheduler version v0.18.0. The patch version of the descheduler helm chart and the patcher version of the descheduler will not necessarily match. The patch
-version of the descheduler helm chart is used to version changes specific to the helm chart.
-
-1. Merge all helm chart changes into the master branch before the release is tagged/cut
-   1. Ensure that `appVersion` in file `charts/descheduler/Chart.yaml` matches the descheduler version(no `v` prefix)
-   2. Ensure that `version` in file `charts/descheduler/Chart.yaml` has been incremented. This is the chart version.
-2. Make sure your repo is clean by git's standards
-3. Follow the release-branch or patch release tagging pattern from the above section.
-4. Verify the new helm artifact has been successfully pushed to the `gh-pages` branch

docs/user-guide.md

@@ -2,14 +2,19 @@
 
 Starting with descheduler release v0.10.0 container images are available in the official k8s container registry.
 
-Descheduler Version | Container Image                                     | Architectures           |
-------------------- |-----------------------------------------------------|-------------------------|
-v0.22.0             | k8s.gcr.io/descheduler/descheduler:v0.22.0          | AMD64<br>ARM64<br>ARMv7 |
-v0.21.0             | k8s.gcr.io/descheduler/descheduler:v0.21.0          | AMD64<br>ARM64<br>ARMv7 |
-v0.20.0             | k8s.gcr.io/descheduler/descheduler:v0.20.0          | AMD64<br>ARM64          |
-v0.19.0             | k8s.gcr.io/descheduler/descheduler:v0.19.0          | AMD64                   |
-v0.18.0             | k8s.gcr.io/descheduler/descheduler:v0.18.0          | AMD64                   |
-v0.10.0             | k8s.gcr.io/descheduler/descheduler:v0.10.0          | AMD64                   |
+Descheduler Version | Container Image                            | Architectures           |
+------------------- |--------------------------------------------|-------------------------|
+v0.25.1             | k8s.gcr.io/descheduler/descheduler:v0.25.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.25.0             | k8s.gcr.io/descheduler/descheduler:v0.25.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.24.1             | k8s.gcr.io/descheduler/descheduler:v0.24.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.24.0             | k8s.gcr.io/descheduler/descheduler:v0.24.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.23.1             | k8s.gcr.io/descheduler/descheduler:v0.23.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.22.0             | k8s.gcr.io/descheduler/descheduler:v0.22.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.21.0             | k8s.gcr.io/descheduler/descheduler:v0.21.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.20.0             | k8s.gcr.io/descheduler/descheduler:v0.20.0 | AMD64<br>ARM64          |
+v0.19.0             | k8s.gcr.io/descheduler/descheduler:v0.19.0 | AMD64                   |
+v0.18.0             | k8s.gcr.io/descheduler/descheduler:v0.18.0 | AMD64                   |
+v0.10.0             | k8s.gcr.io/descheduler/descheduler:v0.10.0 | AMD64                   |
 
 Note that multi-arch container images cannot be pulled by [kind](https://kind.sigs.k8s.io) from a registry. Therefore
 starting with descheduler release v0.20.0 use the below process to download the official descheduler
@@ -34,31 +39,52 @@ Usage:
   descheduler [command]
 
 Available Commands:
+  completion  generate the autocompletion script for the specified shell
   help        Help about any command
   version     Version of descheduler
 
 Flags:
-      --add-dir-header                   If true, adds the file directory to the header of the log messages
-      --alsologtostderr                  log to standard error as well as files
-      --descheduling-interval duration   Time interval between two consecutive descheduler executions. Setting this value instructs the descheduler to run in a continuous loop at the interval specified.
-      --dry-run                          execute descheduler in dry run mode.
-      --evict-local-storage-pods         DEPRECATED: enables evicting pods using local storage by descheduler
-  -h, --help                             help for descheduler
-      --kubeconfig string                File with  kube configuration.
-      --log-backtrace-at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
-      --log-dir string                   If non-empty, write log files in this directory
-      --log-file string                  If non-empty, use this log file
-      --log-file-max-size uint           Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
-      --log-flush-frequency duration     Maximum number of seconds between log flushes (default 5s)
-      --logtostderr                      log to standard error instead of files (default true)
-      --max-pods-to-evict-per-node int   DEPRECATED: limits the maximum number of pods to be evicted per node by descheduler
-      --node-selector string             DEPRECATED: selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)
-      --policy-config-file string        File with descheduler policy configuration.
-      --skip-headers                     If true, avoid header prefixes in the log messages
-      --skip-log-headers                 If true, avoid headers when opening log files
-      --stderrthreshold severity         logs at or above this threshold go to stderr (default 2)
-  -v, --v Level                          number for the log level verbosity
-      --vmodule moduleSpec               comma-separated list of pattern=N settings for file-filtered logging
+      --add-dir-header                           If true, adds the file directory to the header of the log messages (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --alsologtostderr                          log to standard error as well as files (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --bind-address ip                          The IP address on which to listen for the --secure-port port. The associated interface(s) must be reachable by the rest of the cluster, and by CLI/web clients. If blank or an unspecified address (0.0.0.0 or ::), all interfaces will be used. (default 0.0.0.0)
+      --cert-dir string                          The directory where the TLS certs are located. If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored. (default "apiserver.local.config/certificates")
+      --descheduling-interval duration           Time interval between two consecutive descheduler executions. Setting this value instructs the descheduler to run in a continuous loop at the interval specified.
+      --disable-metrics                          Disables metrics. The metrics are by default served through https://localhost:10258/metrics. Secure address, resp. port can be changed through --bind-address, resp. --secure-port flags.
+      --dry-run                                  execute descheduler in dry run mode.
+  -h, --help                                     help for descheduler
+      --http2-max-streams-per-connection int     The limit that the server gives to clients for the maximum number of streams in an HTTP/2 connection. Zero means to use golang's default.
+      --kubeconfig string                        File with  kube configuration.
+      --leader-elect                             Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability.
+      --leader-elect-lease-duration duration     The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is replaced by another candidate. This is only applicable if leader election is enabled. (default 15s)
+      --leader-elect-renew-deadline duration     The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than or equal to the lease duration. This is only applicable if leader election is enabled. (default 10s)
+      --leader-elect-resource-lock string        The type of resource object that is used for locking during leader election. Supported options are 'endpoints', 'configmaps', 'leases', 'endpointsleases' and 'configmapsleases'. (default "leases")
+      --leader-elect-resource-name string        The name of resource object that is used for locking during leader election. (default "descheduler")
+      --leader-elect-resource-namespace string   The namespace of resource object that is used for locking during leader election. (default "kube-system")
+      --leader-elect-retry-period duration       The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. (default 2s)
+      --log-backtrace-at traceLocation           when logging hits line file:N, emit a stack trace (default :0) (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --log_dir string                           If non-empty, write log files in this directory (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --log_file string                          If non-empty, use this log file (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --log_file_max_size uint                   Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800) (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --log-flush-frequency duration             Maximum number of seconds between log flushes (default 5s)
+      --logging-format string                    Sets the log format. Permitted formats: "text", "json". Non-default formats don't honor these flags: --add-dir-header, --alsologtostderr, --log-backtrace-at, --log_dir, --log_file, --log_file_max_size, --logtostderr, --skip-headers, --skip-log-headers, --stderrthreshold, --log-flush-frequency.\nNon-default choices are currently alpha and subject to change without warning. (default "text")
+      --logtostderr                              log to standard error instead of files (default true) (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --one-output                               If true, only write logs to their native severity level (vs also writing to each lower severity level) (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --permit-address-sharing                   If true, SO_REUSEADDR will be used when binding the port. This allows binding to wildcard IPs like 0.0.0.0 and specific IPs in parallel, and it avoids waiting for the kernel to release sockets in TIME_WAIT state. [default=false]
+      --permit-port-sharing                      If true, SO_REUSEPORT will be used when binding the port, which allows more than one instance to bind on the same address and port. [default=false]
+      --policy-config-file string                File with descheduler policy configuration.
+      --secure-port int                          The port on which to serve HTTPS with authentication and authorization. If 0, don't serve HTTPS at all. (default 10258)
+      --skip-headers                             If true, avoid header prefixes in the log messages (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --skip-log-headers                         If true, avoid headers when opening log files (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --stderrthreshold severity                 logs at or above this threshold go to stderr (default 2) (DEPRECATED: will be removed in a future release, see https://github.com/kubernetes/enhancements/tree/master/keps/sig-instrumentation/2845-deprecate-klog-specific-flags-in-k8s-components)
+      --tls-cert-file string                     File containing the default x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). If HTTPS serving is enabled, and --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key are generated for the public address and saved to the directory specified by --cert-dir.
+      --tls-cipher-suites strings                Comma-separated list of cipher suites for the server. If omitted, the default Go cipher suites will be used. 
+                                                 Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_GCM_SHA384. 
+                                                 Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_RC4_128_SHA.
+      --tls-min-version string                   Minimum TLS version supported. Possible values: VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13
+      --tls-private-key-file string              File containing the default x509 private key matching --tls-cert-file.
+      --tls-sni-cert-key namedCertKey            A pair of x509 certificate and private key file paths, optionally suffixed with a list of domain patterns which are fully qualified domain names, possibly with prefixed wildcard segments. The domain patterns also allow IP addresses, but IPs should only be used if the apiserver has visibility to the IP address requested by a client. If no domain patterns are provided, the names of the certificate are extracted. Non-wildcard matches trump over wildcard matches, explicit domain patterns trump over extracted names. For multiple key/certificate pairs, use the --tls-sni-cert-key multiple times. Examples: "example.crt,example.key" or "foo.crt,foo.key:*.foo.com,foo.com". (default [])
+  -v, --v Level                                  number for the log level verbosity
+      --vmodule moduleSpec                       comma-separated list of pattern=N settings for file-filtered logging
 
 Use "descheduler [command] --help" for more information about a command.
 ```
@@ -89,7 +115,8 @@ strategies:
   "PodLifeTime":
     enabled: true
     params:
-      maxPodLifeTimeSeconds: 604800 # pods run for a maximum of 7 days
+      podLifeTime:
+        maxPodLifeTimeSeconds: 604800 # pods run for a maximum of 7 days
 ```
 
 ### Balance Cluster By Node Memory Utilization
@@ -117,7 +144,7 @@ strategies:
 
 #### Balance low utilization nodes
 Using `HighNodeUtilization`, descheduler will rebalance the cluster based on memory by evicting pods
-from nodes with memory utilization lower than 20%. This should be used along with scheduler strategy `MostRequestedPriority`.
+from nodes with memory utilization lower than 20%. This should be use `NodeResourcesFit` with the `MostAllocated` scoring strategy based on these [doc](https://kubernetes.io/docs/reference/scheduling/config/#scheduling-plugins).
 The evicted pods will be compacted into minimal set of nodes.
 
 ```
@@ -136,7 +163,14 @@ strategies:
 Descheduler's `RemovePodsViolatingNodeTaints` strategy can be combined with
 [Node Problem Detector](https://github.com/kubernetes/node-problem-detector/) and
 [Cluster Autoscaler](https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler) to automatically remove
-Nodes which have problems. Node Problem Detector can detect specific Node problems and taint any Nodes which have those
-problems. The Descheduler will then deschedule workloads from those Nodes. Finally, if the descheduled Node's resource
+Nodes which have problems. Node Problem Detector can detect specific Node problems and report them to the API server.
+There is a feature called TaintNodeByCondition of the node controller that takes some conditions and turns them into taints. Currently, this only works for the default node conditions: PIDPressure, MemoryPressure, DiskPressure, Ready, and some cloud provider specific conditions.
+The Descheduler will then deschedule workloads from those Nodes. Finally, if the descheduled Node's resource
 allocation falls below the Cluster Autoscaler's scale down threshold, the Node will become a scale down candidate
 and can be removed by Cluster Autoscaler. These three components form an autohealing cycle for Node problems.
+---
+**NOTE**
+
+Once [kubernetes/node-problem-detector#565](https://github.com/kubernetes/node-problem-detector/pull/565) is available in NPD, we need to update this section.
+
+---

examples/pod-life-time.yml

@@ -6,3 +6,6 @@ strategies:
     params:
       podLifeTime:
         maxPodLifeTimeSeconds: 604800 # 7 days
+        states:
+        - "Pending"
+        - "PodInitializing"

examples/topology-spread-constraint.yaml

@@ -4,4 +4,5 @@ strategies:
   "RemovePodsViolatingTopologySpreadConstraint":
      enabled: true
      params:
+       nodeFit: true
        includeSoftConstraints: true # Include 'ScheduleAnyways' constraints

go.mod

@@ -1,28 +1,28 @@
 module sigs.k8s.io/descheduler
 
-go 1.17
+go 1.19
 
 require (
 	github.com/client9/misspell v0.3.4
-	github.com/spf13/cobra v1.2.1
+	github.com/spf13/cobra v1.4.0
 	github.com/spf13/pflag v1.0.5
-	k8s.io/api v0.23.0
-	k8s.io/apimachinery v0.23.0
-	k8s.io/apiserver v0.23.0
-	k8s.io/client-go v0.23.0
-	k8s.io/code-generator v0.23.0
-	k8s.io/component-base v0.23.0
-	k8s.io/component-helpers v0.23.0
-	k8s.io/klog/v2 v2.30.0
-	k8s.io/kubectl v0.20.5
+	k8s.io/api v0.25.0
+	k8s.io/apimachinery v0.25.0
+	k8s.io/apiserver v0.25.0
+	k8s.io/client-go v0.25.0
+	k8s.io/code-generator v0.25.0
+	k8s.io/component-base v0.25.0
+	k8s.io/component-helpers v0.25.0
+	k8s.io/klog/v2 v2.70.1
+	k8s.io/utils v0.0.0-20220823124924-e9cbc92d1a73
 	sigs.k8s.io/mdtoc v1.0.1
 )
 
 require (
-	cloud.google.com/go v0.81.0 // indirect
+	cloud.google.com/go v0.97.0 // indirect
 	github.com/Azure/go-autorest v14.2.0+incompatible // indirect
-	github.com/Azure/go-autorest/autorest v0.11.18 // indirect
-	github.com/Azure/go-autorest/autorest/adal v0.9.13 // indirect
+	github.com/Azure/go-autorest/autorest v0.11.27 // indirect
+	github.com/Azure/go-autorest/autorest/adal v0.9.20 // indirect
 	github.com/Azure/go-autorest/autorest/date v0.3.0 // indirect
 	github.com/Azure/go-autorest/logger v0.2.1 // indirect
 	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
@@ -31,32 +31,32 @@ require (
 	github.com/PuerkitoBio/purell v1.1.1 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/blang/semver v3.5.1+incompatible // indirect
-	github.com/cespare/xxhash/v2 v2.1.1 // indirect
+	github.com/blang/semver/v4 v4.0.0 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/emicklei/go-restful v2.9.5+incompatible // indirect
+	github.com/emicklei/go-restful/v3 v3.8.0 // indirect
 	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
 	github.com/felixge/httpsnoop v1.0.1 // indirect
-	github.com/form3tech-oss/jwt-go v3.2.3+incompatible // indirect
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
-	github.com/go-logr/logr v1.2.0 // indirect
-	github.com/go-logr/zapr v1.2.0 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/zapr v1.2.3 // indirect
 	github.com/go-openapi/jsonpointer v0.19.5 // indirect
 	github.com/go-openapi/jsonreference v0.19.5 // indirect
 	github.com/go-openapi/swag v0.19.14 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.2.0 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/gomarkdown/markdown v0.0.0-20200824053859-8c8b3816f167 // indirect
-	github.com/google/go-cmp v0.5.5 // indirect
+	github.com/google/gnostic v0.5.7-v3refs // indirect
+	github.com/google/go-cmp v0.5.6 // indirect
 	github.com/google/gofuzz v1.1.0 // indirect
 	github.com/google/uuid v1.1.2 // indirect
-	github.com/googleapis/gnostic v0.5.5 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect
-	github.com/imdario/mergo v0.3.5 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
@@ -67,13 +67,13 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_golang v1.11.0 // indirect
+	github.com/prometheus/client_golang v1.12.1 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.28.0 // indirect
-	github.com/prometheus/procfs v0.6.0 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.0 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0 // indirect
-	go.etcd.io/etcd/client/v3 v3.5.0 // indirect
+	github.com/prometheus/common v0.32.1 // indirect
+	github.com/prometheus/procfs v0.7.3 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.4 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.4 // indirect
+	go.etcd.io/etcd/client/v3 v3.5.4 // indirect
 	go.opentelemetry.io/contrib v0.20.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.20.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.20.0 // indirect
@@ -88,30 +88,28 @@ require (
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.19.0 // indirect
-	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect
-	golang.org/x/mod v0.4.2 // indirect
-	golang.org/x/net v0.0.0-20210825183410-e898025ed96a // indirect
-	golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	golang.org/x/sys v0.0.0-20210831042530-f4d43177bf5e // indirect
-	golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b // indirect
+	golang.org/x/crypto v0.0.0-20220518034528-6f7dac969898 // indirect
+	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
+	golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8 // indirect
+	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
+	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac // indirect
-	golang.org/x/tools v0.1.6-0.20210820212750-d4cc65f0b2ff // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 // indirect
+	golang.org/x/tools v0.1.12 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20210831024726-fe130286e0e2 // indirect
-	google.golang.org/grpc v1.40.0 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
+	google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 // indirect
+	google.golang.org/grpc v1.47.0 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
-	k8s.io/gengo v0.0.0-20210813121822-485abfe95c7c // indirect
-	k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65 // indirect
-	k8s.io/utils v0.0.0-20210930125809-cb0fa318a74b // indirect
-	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.25 // indirect
-	sigs.k8s.io/json v0.0.0-20211020170558-c049b76a60c6 // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.2.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/gengo v0.0.0-20211129171323-c02415ce4185 // indirect
+	k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 // indirect
+	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.32 // indirect
+	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 	sigs.k8s.io/yaml v1.2.0 // indirect
 )

go.sum

@@ -17,8 +17,15 @@ cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKP
 cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
 cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
 cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
-cloud.google.com/go v0.81.0 h1:at8Tk2zUz63cLPR0JPWm5vp77pEZmzxEQBEfRKn1VV8=
 cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
+cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAVY=
+cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
+cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
+cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
+cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
+cloud.google.com/go v0.94.1/go.mod h1:qAlAugsXlC+JWO+Bke5vCtc9ONxjQT3drlTTnAplMW4=
+cloud.google.com/go v0.97.0 h1:3DXvAyifywvq64LfkKaMOmkWPS1CikIQdMe2lY9vxU8=
+cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Udc=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
@@ -27,7 +34,6 @@ cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4g
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
 cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
@@ -38,24 +44,18 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-github.com/Azure/go-ansiterm v0.0.0-20210608223527-2377c96fe795/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs=
 github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/Azure/go-autorest/autorest v0.11.1/go.mod h1:JFgpikqFJ/MleTTxwepExTKnFUKKszPS8UavbQYUMuw=
-github.com/Azure/go-autorest/autorest v0.11.18 h1:90Y4srNYrwOtAgVo3ndrQkTYn6kf1Eg/AjTFJ8Is2aM=
-github.com/Azure/go-autorest/autorest v0.11.18/go.mod h1:dSiJPy22c3u0OtOKDNttNgqpNFY/GeWa7GH/Pz56QRA=
-github.com/Azure/go-autorest/autorest/adal v0.9.0/go.mod h1:/c022QCutn2P7uY+/oQWWNcK9YU+MH96NgK+jErpbcg=
-github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
-github.com/Azure/go-autorest/autorest/adal v0.9.13 h1:Mp5hbtOePIzM8pJVRa3YLrWWmZtoxRXqUEzCfJt3+/Q=
-github.com/Azure/go-autorest/autorest/adal v0.9.13/go.mod h1:W/MM4U6nLxnIskrw4UwWzlHfGjwUS50aOsc/I3yuU8M=
+github.com/Azure/go-autorest/autorest v0.11.27 h1:F3R3q42aWytozkV8ihzcgMO4OA4cuqr3bNlsEuF6//A=
+github.com/Azure/go-autorest/autorest v0.11.27/go.mod h1:7l8ybrIdUmGqZMTD0sRtAr8NvbHjfofbf8RSP2q7w7U=
+github.com/Azure/go-autorest/autorest/adal v0.9.18/go.mod h1:XVVeme+LZwABT8K5Lc3hA4nAe8LDBVle26gTrguhhPQ=
+github.com/Azure/go-autorest/autorest/adal v0.9.20 h1:gJ3E98kMpFB1MFqQCvA1yFab8vthOeD4VlFRQULxahg=
+github.com/Azure/go-autorest/autorest/adal v0.9.20/go.mod h1:XVVeme+LZwABT8K5Lc3hA4nAe8LDBVle26gTrguhhPQ=
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@@ -63,8 +63,6 @@ github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBp
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@@ -78,10 +76,6 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
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@@ -89,19 +83,13 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
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@@ -110,38 +98,25 @@ github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDk
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@@ -180,32 +145,29 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
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@@ -219,6 +181,7 @@ github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt
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@@ -237,15 +200,14 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
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@@ -256,14 +218,16 @@ github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -275,59 +239,30 @@ github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLe
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@@ -505,35 +364,24 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
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@@ -565,31 +413,26 @@ go.opentelemetry.io/otel/trace v0.20.0 h1:1DL6EXUdcg95gukhuRRvLDO/4X5THh/5dIV52l
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@@ -625,15 +468,12 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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-golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
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@@ -656,7 +496,6 @@ golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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 golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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@@ -664,16 +503,16 @@ golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81R
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@@ -685,10 +524,12 @@ golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
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@@ -699,14 +540,11 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -715,14 +553,10 @@ golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7w
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 golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -737,16 +571,12 @@ golang.org/x/sys v0.0.0-20200331124033-c3d80250170d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201112073958-5cba982894dd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -760,15 +590,21 @@ golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -782,32 +618,24 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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-golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac h1:7zkz7BUtwNFFqcowJ+RIgu2MaV/MapERkDIy+mwPyjs=
-golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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@@ -830,7 +658,6 @@ golang.org/x/tools v0.0.0-20200501065659-ab2804fb9c9d/go.mod h1:EkVYQZoAsY45+roY
 golang.org/x/tools v0.0.0-20200505023115-26f46d2f7ef8/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200512131952-2bc93b1c0c88/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200515010526-7d3b6ebf133d/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20200616133436-c1934b75d054/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200618134242-20370b0cb4b2/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
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@@ -843,10 +670,13 @@ golang.org/x/tools v0.0.0-20201208233053-a543418bbed2/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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@@ -873,7 +703,13 @@ google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34q
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-google.golang.org/api v0.44.0/go.mod h1:EBOGZqzyhtvMDoxwS97ctnh0zUmYY6CxqXsc1AvkYD8=
+google.golang.org/api v0.47.0/go.mod h1:Wbvgpq1HddcWVtzsVLyfLp8lDg6AA241LmgIL59tHXo=
+google.golang.org/api v0.48.0/go.mod h1:71Pr1vy+TAZRPkPs/xlCf5SsU8WjuAWv1Pfjbtukyy4=
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@@ -903,7 +739,6 @@ google.golang.org/genproto v0.0.0-20200228133532-8c2c7df3a383/go.mod h1:55QSHmfG
 google.golang.org/genproto v0.0.0-20200305110556-506484158171/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
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 google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
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@@ -924,9 +759,23 @@ google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb/go.mod h1:FWY/as6D
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@@ -947,9 +796,15 @@ google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAG
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@@ -962,8 +817,9 @@ google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGj
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@@ -994,11 +842,9 @@ gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
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@@ -1006,60 +852,40 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
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+k8s.io/apimachinery v0.25.0/go.mod h1:qMx9eAk0sZQGsXGu86fab8tZdffHbwUfsvzqKn4mfB0=
+k8s.io/apiserver v0.25.0 h1:8kl2ifbNffD440MyvHtPaIz1mw4mGKVgWqM0nL+oyu4=
+k8s.io/apiserver v0.25.0/go.mod h1:BKwsE+PTC+aZK+6OJQDPr0v6uS91/HWxX7evElAH6xo=
+k8s.io/client-go v0.25.0 h1:CVWIaCETLMBNiTUta3d5nzRbXvY5Hy9Dpl+VvREpu5E=
+k8s.io/client-go v0.25.0/go.mod h1:lxykvypVfKilxhTklov0wz1FoaUZ8X4EwbhS6rpRfN8=
+k8s.io/code-generator v0.25.0 h1:QP8fJuXu882ztf6dsqJsso/Btm94pMd68TAZC1rE6KI=
+k8s.io/code-generator v0.25.0/go.mod h1:B6jZgI3DvDFAualltPitbYMQ74NjaCFxum3YeKZZ+3w=
+k8s.io/component-base v0.25.0 h1:haVKlLkPCFZhkcqB6WCvpVxftrg6+FK5x1ZuaIDaQ5Y=
+k8s.io/component-base v0.25.0/go.mod h1:F2Sumv9CnbBlqrpdf7rKZTmmd2meJq0HizeyY/yAFxk=
+k8s.io/component-helpers v0.25.0 h1:vNzYfqnVXj7f+CPksduKVv2Z9kC+IDsOs9yaOyxZrj0=
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+k8s.io/gengo v0.0.0-20211129171323-c02415ce4185/go.mod h1:FiNAH4ZV3gBg2Kwh89tzAEV2be7d5xI0vBa/VySYy3E=
 k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
 k8s.io/klog/v2 v2.2.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
-k8s.io/klog/v2 v2.4.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
-k8s.io/klog/v2 v2.30.0 h1:bUO6drIvCIsvZ/XFgfxoGFQU/a4Qkh0iAlvUR7vlHJw=
-k8s.io/klog/v2 v2.30.0/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
-k8s.io/kube-openapi v0.0.0-20201113171705-d219536bb9fd/go.mod h1:WOJ3KddDSol4tAGcJo0Tvi+dK12EcqSLqcWsryKMpfM=
-k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65 h1:E3J9oCLlaobFUqsjG9DfKbP2BmgwBL2p7pn0A3dG9W4=
-k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65/go.mod h1:sX9MT8g7NVZM5lVL/j8QyCCJe8YSMW30QvGZWaCIDIk=
-k8s.io/kubectl v0.20.5 h1:/wndy8hw5TsL8G8KWPDJrtPKS8D34uSdWS0BMRmtzWs=
-k8s.io/kubectl v0.20.5/go.mod h1:mlNQgyV18D4XFt5BmfSkrxQNS+arT2pXDQxxnH5lMiw=
-k8s.io/metrics v0.20.5/go.mod h1:vsptOayjKWKWHvWR1vFQY++vxydzaEo/2+JC7kSDKPU=
-k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
-k8s.io/utils v0.0.0-20210802155522-efc7438f0176/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
-k8s.io/utils v0.0.0-20210930125809-cb0fa318a74b h1:wxEMGetGMur3J1xuGLQY7GEQYg9bZxKn3tKo5k/eYcs=
-k8s.io/utils v0.0.0-20210930125809-cb0fa318a74b/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
+k8s.io/klog/v2 v2.70.1 h1:7aaoSdahviPmR+XkS7FyxlkkXs6tHISSG03RxleQAVQ=
+k8s.io/klog/v2 v2.70.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 h1:MQ8BAZPZlWk3S9K4a9NCkIFQtZShWqoha7snGixVgEA=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1/go.mod h1:C/N6wCaBHeBHkHUesQOQy2/MZqGgMAFPqGsGQLdbZBU=
+k8s.io/utils v0.0.0-20220823124924-e9cbc92d1a73 h1:H9TCJUUx+2VA0ZiD9lvtaX8fthFsMoD+Izn93E/hm8U=
+k8s.io/utils v0.0.0-20220823124924-e9cbc92d1a73/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.25 h1:DEQ12ZRxJjsglk5JIi5bLgpKaHihGervKmg5uryaEHw=
-sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.25/go.mod h1:Mlj9PNLmG9bZ6BHFwFKDo5afkpWyUISkb9Me0GnK66I=
-sigs.k8s.io/json v0.0.0-20211020170558-c049b76a60c6 h1:fD1pz4yfdADVNfFmcP2aBEtudwUQ1AlLnRBALr33v3s=
-sigs.k8s.io/json v0.0.0-20211020170558-c049b76a60c6/go.mod h1:p4QtZmO4uMYipTQNzagwnNoseA6OxSUutVw05NhYDRs=
-sigs.k8s.io/kustomize v2.0.3+incompatible/go.mod h1:MkjgH3RdOWrievjo6c9T245dYlB5QeXV4WCbnt/PEpU=
+sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.32 h1:2WjukG7txtEsbXsSKWtTibCdsyYAhcu6KFnttyDdZOQ=
+sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.32/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
+sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 h1:iXTIw73aPyC+oRdyqqvVJuloN1p0AC/kzH07hu3NE+k=
+sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
 sigs.k8s.io/mdtoc v1.0.1 h1:6ECKhQnbetwZBR6R2IeT2LH+1w+2Zsip0iXjikgaXIk=
 sigs.k8s.io/mdtoc v1.0.1/go.mod h1:COYBtOjsaCg7o7SC4eaLwEXPuVRSuiVuLLRrHd7kShw=
-sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
-sigs.k8s.io/structured-merge-diff/v4 v4.1.2/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
-sigs.k8s.io/structured-merge-diff/v4 v4.2.0 h1:kDvPBbnPk+qYmkHmSo8vKGp438IASWofnbbUKDE/bv0=
-sigs.k8s.io/structured-merge-diff/v4 v4.2.0/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/structured-merge-diff/v4 v4.2.3 h1:PRbqxJClWWYMNV1dhaG4NsibJbArud9kFxnAMREiWFE=
+sigs.k8s.io/structured-merge-diff/v4 v4.2.3/go.mod h1:qjx8mGObPmV2aSZepjQjbmb2ihdVs8cGKBraizNC69E=
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 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

hack/update-generated-deep-copies.sh

@@ -5,6 +5,6 @@ go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "k8s.io/code-generator/cmd/deepc
 
 ${OS_OUTPUT_BINPATH}/deepcopy-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \
-                --input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig,${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api,${PRJ_PREFIX}/pkg/api/v1alpha1" \
+                --input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig,${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api,${PRJ_PREFIX}/pkg/api/v1alpha1,${PRJ_PREFIX}/pkg/framework/plugins/defaultevictor/" \
                 --output-file-base zz_generated.deepcopy
 

hack/update-gofmt.sh

@@ -23,7 +23,7 @@ DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
 
 GO_VERSION=($(go version))
 
-if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.14|go1.15|go1.16|go1.17') ]]; then
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.17|go1.18|go1.19') ]]; then
   echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
   exit 1
 fi

hack/verify-chart.sh

@@ -0,0 +1 @@
+${CONTAINER_ENGINE:-docker} run -it --rm --network host --workdir=/data --volume ~/.kube/config:/root/.kube/config:ro --volume $(pwd):/data quay.io/helmpack/chart-testing:v3.7.0 /bin/bash -c "git config --global --add safe.directory /data; ct install --config=.github/ci/ct.yaml --helm-extra-set-args=\"--set=kind=Deployment\""

hack/verify-deep-copies.sh

@@ -20,7 +20,7 @@ go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "k8s.io/code-generator/cmd/deepc
 
 ${OS_OUTPUT_BINPATH}/deepcopy-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \
-                --input-dirs "./pkg/apis/componentconfig,./pkg/apis/componentconfig/v1alpha1,./pkg/api,./pkg/api/v1alpha1" \
+                --input-dirs "./pkg/apis/componentconfig,./pkg/apis/componentconfig/v1alpha1,./pkg/api,./pkg/api/v1alpha1,./pkg/framework/plugins/defaultevictor/" \
                 --output-file-base zz_generated.deepcopy
 popd > /dev/null 2>&1
 

hack/verify-gofmt.sh

@@ -23,7 +23,7 @@ DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
 
 GO_VERSION=($(go version))
 
-if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.14|go1.15|go1.16|go1.17') ]]; then
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.17|go1.18|go1.19') ]]; then
   echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
   exit 1
 fi

kubernetes/base/rbac.yaml

@@ -4,7 +4,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: descheduler-cluster-role
 rules:
-- apiGroups: [""]
+- apiGroups: ["events.k8s.io"]
   resources: ["events"]
   verbs: ["create", "update"]
 - apiGroups: [""]
@@ -12,7 +12,7 @@ rules:
   verbs: ["get", "watch", "list"]
 - apiGroups: [""]
   resources: ["namespaces"]
-  verbs: ["get", "list"]
+  verbs: ["get", "watch", "list"]
 - apiGroups: [""]
   resources: ["pods"]
   verbs: ["get", "watch", "list", "delete"]
@@ -22,6 +22,13 @@ rules:
 - apiGroups: ["scheduling.k8s.io"]
   resources: ["priorityclasses"]
   verbs: ["get", "watch", "list"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  verbs: ["create"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  resourceNames: ["descheduler"]
+  verbs: ["get", "patch", "delete"]
 ---
 apiVersion: v1
 kind: ServiceAccount
@@ -41,4 +48,3 @@ subjects:
   - name: descheduler-sa
     kind: ServiceAccount
     namespace: kube-system
-

kubernetes/cronjob/cronjob.yaml

@@ -1,5 +1,5 @@
 ---
-apiVersion: batch/v1  # for k8s version < 1.21.0, use batch/v1beta1
+apiVersion: batch/v1
 kind: CronJob
 metadata:
   name: descheduler-cronjob
@@ -16,7 +16,7 @@ spec:
           priorityClassName: system-cluster-critical
           containers:
           - name: descheduler
-            image: k8s.gcr.io/descheduler/descheduler:v0.22.0
+            image: k8s.gcr.io/descheduler/descheduler:v0.25.1
             volumeMounts:
             - mountPath: /policy-dir
               name: policy-volume

kubernetes/deployment/deployment.yaml

@@ -19,7 +19,7 @@ spec:
       serviceAccountName: descheduler-sa
       containers:
         - name: descheduler
-          image: k8s.gcr.io/descheduler/descheduler:v0.22.0
+          image: k8s.gcr.io/descheduler/descheduler:v0.25.1
           imagePullPolicy: IfNotPresent
           command:
             - "/bin/descheduler"

kubernetes/job/job.yaml

@@ -14,7 +14,7 @@ spec:
       priorityClassName: system-cluster-critical
       containers:
         - name: descheduler
-          image: k8s.gcr.io/descheduler/descheduler:v0.22.0
+          image: k8s.gcr.io/descheduler/descheduler:v0.25.1
           volumeMounts:
           - mountPath: /policy-dir
             name: policy-volume

metrics/metrics.go

@@ -43,7 +43,7 @@ var (
 			Subsystem:      DeschedulerSubsystem,
 			Name:           "build_info",
 			Help:           "Build info about descheduler, including Go version, Descheduler version, Git SHA, Git branch",
-			ConstLabels:    map[string]string{"GoVersion": version.Get().GoVersion, "DeschedulerVersion": version.Get().GitVersion, "GitBranch": version.Get().GitBranch, "GitSha1": version.Get().GitSha1},
+			ConstLabels:    map[string]string{"GoVersion": version.Get().GoVersion, "AppVersion": version.Get().Major + "." + version.Get().Minor, "DeschedulerVersion": version.Get().GitVersion, "GitBranch": version.Get().GitBranch, "GitSha1": version.Get().GitSha1},
 			StabilityLevel: metrics.ALPHA,
 		},
 	)

pkg/api/types.go

@@ -74,7 +74,8 @@ type Namespaces struct {
 
 // Besides Namespaces only one of its members may be specified
 // TODO(jchaloup): move Namespaces ThresholdPriority and ThresholdPriorityClassName to individual strategies
-//  once the policy version is bumped to v1alpha2
+//
+//	once the policy version is bumped to v1alpha2
 type StrategyParameters struct {
 	NodeResourceUtilizationThresholds *NodeResourceUtilizationThresholds
 	NodeAffinityType                  []string
@@ -88,15 +89,18 @@ type StrategyParameters struct {
 	ThresholdPriorityClassName        string
 	LabelSelector                     *metav1.LabelSelector
 	NodeFit                           bool
+	IncludePreferNoSchedule           bool
+	ExcludedTaints                    []string
 }
 
 type Percentage float64
 type ResourceThresholds map[v1.ResourceName]Percentage
 
 type NodeResourceUtilizationThresholds struct {
-	Thresholds       ResourceThresholds
-	TargetThresholds ResourceThresholds
-	NumberOfNodes    int
+	UseDeviationThresholds bool
+	Thresholds             ResourceThresholds
+	TargetThresholds       ResourceThresholds
+	NumberOfNodes          int
 }
 
 type PodsHavingTooManyRestarts struct {
@@ -110,7 +114,10 @@ type RemoveDuplicates struct {
 
 type PodLifeTime struct {
 	MaxPodLifeTimeSeconds *uint
-	PodStatusPhases       []string
+	States                []string
+
+	// Deprecated: Use States instead.
+	PodStatusPhases []string
 }
 
 type FailedPods struct {
@@ -119,3 +126,8 @@ type FailedPods struct {
 	Reasons                 []string
 	IncludingInitContainers bool
 }
+
+type PriorityThreshold struct {
+	Value *int32
+	Name  string
+}

pkg/api/v1alpha1/types.go

@@ -86,15 +86,18 @@ type StrategyParameters struct {
 	ThresholdPriorityClassName        string                             `json:"thresholdPriorityClassName"`
 	LabelSelector                     *metav1.LabelSelector              `json:"labelSelector"`
 	NodeFit                           bool                               `json:"nodeFit"`
+	IncludePreferNoSchedule           bool                               `json:"includePreferNoSchedule"`
+	ExcludedTaints                    []string                           `json:"excludedTaints,omitempty"`
 }
 
 type Percentage float64
 type ResourceThresholds map[v1.ResourceName]Percentage
 
 type NodeResourceUtilizationThresholds struct {
-	Thresholds       ResourceThresholds `json:"thresholds,omitempty"`
-	TargetThresholds ResourceThresholds `json:"targetThresholds,omitempty"`
-	NumberOfNodes    int                `json:"numberOfNodes,omitempty"`
+	UseDeviationThresholds bool               `json:"useDeviationThresholds,omitempty"`
+	Thresholds             ResourceThresholds `json:"thresholds,omitempty"`
+	TargetThresholds       ResourceThresholds `json:"targetThresholds,omitempty"`
+	NumberOfNodes          int                `json:"numberOfNodes,omitempty"`
 }
 
 type PodsHavingTooManyRestarts struct {
@@ -108,7 +111,10 @@ type RemoveDuplicates struct {
 
 type PodLifeTime struct {
 	MaxPodLifeTimeSeconds *uint    `json:"maxPodLifeTimeSeconds,omitempty"`
-	PodStatusPhases       []string `json:"podStatusPhases,omitempty"`
+	States                []string `json:"states,omitempty"`
+
+	// Deprecated: Use States instead.
+	PodStatusPhases []string `json:"podStatusPhases,omitempty"`
 }
 
 type FailedPods struct {

pkg/api/v1alpha1/zz_generated.conversion.go

@@ -261,6 +261,7 @@ func Convert_api_Namespaces_To_v1alpha1_Namespaces(in *api.Namespaces, out *Name
 }
 
 func autoConvert_v1alpha1_NodeResourceUtilizationThresholds_To_api_NodeResourceUtilizationThresholds(in *NodeResourceUtilizationThresholds, out *api.NodeResourceUtilizationThresholds, s conversion.Scope) error {
+	out.UseDeviationThresholds = in.UseDeviationThresholds
 	out.Thresholds = *(*api.ResourceThresholds)(unsafe.Pointer(&in.Thresholds))
 	out.TargetThresholds = *(*api.ResourceThresholds)(unsafe.Pointer(&in.TargetThresholds))
 	out.NumberOfNodes = in.NumberOfNodes
@@ -273,6 +274,7 @@ func Convert_v1alpha1_NodeResourceUtilizationThresholds_To_api_NodeResourceUtili
 }
 
 func autoConvert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtilizationThresholds(in *api.NodeResourceUtilizationThresholds, out *NodeResourceUtilizationThresholds, s conversion.Scope) error {
+	out.UseDeviationThresholds = in.UseDeviationThresholds
 	out.Thresholds = *(*ResourceThresholds)(unsafe.Pointer(&in.Thresholds))
 	out.TargetThresholds = *(*ResourceThresholds)(unsafe.Pointer(&in.TargetThresholds))
 	out.NumberOfNodes = in.NumberOfNodes
@@ -286,6 +288,7 @@ func Convert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtili
 
 func autoConvert_v1alpha1_PodLifeTime_To_api_PodLifeTime(in *PodLifeTime, out *api.PodLifeTime, s conversion.Scope) error {
 	out.MaxPodLifeTimeSeconds = (*uint)(unsafe.Pointer(in.MaxPodLifeTimeSeconds))
+	out.States = *(*[]string)(unsafe.Pointer(&in.States))
 	out.PodStatusPhases = *(*[]string)(unsafe.Pointer(&in.PodStatusPhases))
 	return nil
 }
@@ -297,6 +300,7 @@ func Convert_v1alpha1_PodLifeTime_To_api_PodLifeTime(in *PodLifeTime, out *api.P
 
 func autoConvert_api_PodLifeTime_To_v1alpha1_PodLifeTime(in *api.PodLifeTime, out *PodLifeTime, s conversion.Scope) error {
 	out.MaxPodLifeTimeSeconds = (*uint)(unsafe.Pointer(in.MaxPodLifeTimeSeconds))
+	out.States = *(*[]string)(unsafe.Pointer(&in.States))
 	out.PodStatusPhases = *(*[]string)(unsafe.Pointer(&in.PodStatusPhases))
 	return nil
 }
@@ -361,6 +365,8 @@ func autoConvert_v1alpha1_StrategyParameters_To_api_StrategyParameters(in *Strat
 	out.ThresholdPriorityClassName = in.ThresholdPriorityClassName
 	out.LabelSelector = (*v1.LabelSelector)(unsafe.Pointer(in.LabelSelector))
 	out.NodeFit = in.NodeFit
+	out.IncludePreferNoSchedule = in.IncludePreferNoSchedule
+	out.ExcludedTaints = *(*[]string)(unsafe.Pointer(&in.ExcludedTaints))
 	return nil
 }
 
@@ -382,6 +388,8 @@ func autoConvert_api_StrategyParameters_To_v1alpha1_StrategyParameters(in *api.S
 	out.ThresholdPriorityClassName = in.ThresholdPriorityClassName
 	out.LabelSelector = (*v1.LabelSelector)(unsafe.Pointer(in.LabelSelector))
 	out.NodeFit = in.NodeFit
+	out.IncludePreferNoSchedule = in.IncludePreferNoSchedule
+	out.ExcludedTaints = *(*[]string)(unsafe.Pointer(&in.ExcludedTaints))
 	return nil
 }
 

pkg/api/v1alpha1/zz_generated.deepcopy.go

@@ -209,6 +209,11 @@ func (in *PodLifeTime) DeepCopyInto(out *PodLifeTime) {
 		*out = new(uint)
 		**out = **in
 	}
+	if in.States != nil {
+		in, out := &in.States, &out.States
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	if in.PodStatusPhases != nil {
 		in, out := &in.PodStatusPhases, &out.PodStatusPhases
 		*out = make([]string, len(*in))
@@ -356,6 +361,11 @@ func (in *StrategyParameters) DeepCopyInto(out *StrategyParameters) {
 		*out = new(v1.LabelSelector)
 		(*in).DeepCopyInto(*out)
 	}
+	if in.ExcludedTaints != nil {
+		in, out := &in.ExcludedTaints, &out.ExcludedTaints
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

pkg/api/zz_generated.deepcopy.go

@@ -209,6 +209,11 @@ func (in *PodLifeTime) DeepCopyInto(out *PodLifeTime) {
 		*out = new(uint)
 		**out = **in
 	}
+	if in.States != nil {
+		in, out := &in.States, &out.States
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	if in.PodStatusPhases != nil {
 		in, out := &in.PodStatusPhases, &out.PodStatusPhases
 		*out = make([]string, len(*in))
@@ -243,6 +248,27 @@ func (in *PodsHavingTooManyRestarts) DeepCopy() *PodsHavingTooManyRestarts {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *PriorityThreshold) DeepCopyInto(out *PriorityThreshold) {
+	*out = *in
+	if in.Value != nil {
+		in, out := &in.Value, &out.Value
+		*out = new(int32)
+		**out = **in
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PriorityThreshold.
+func (in *PriorityThreshold) DeepCopy() *PriorityThreshold {
+	if in == nil {
+		return nil
+	}
+	out := new(PriorityThreshold)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *RemoveDuplicates) DeepCopyInto(out *RemoveDuplicates) {
 	*out = *in
@@ -356,6 +382,11 @@ func (in *StrategyParameters) DeepCopyInto(out *StrategyParameters) {
 		*out = new(v1.LabelSelector)
 		(*in).DeepCopyInto(*out)
 	}
+	if in.ExcludedTaints != nil {
+		in, out := &in.ExcludedTaints, &out.ExcludedTaints
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

pkg/apis/componentconfig/types.go

@@ -21,6 +21,7 @@ import (
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	componentbaseconfig "k8s.io/component-base/config"
+	registry "k8s.io/component-base/logs/api/v1"
 )
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
@@ -53,7 +54,10 @@ type DeschedulerConfiguration struct {
 	// IgnorePVCPods sets whether PVC pods should be allowed to be evicted
 	IgnorePVCPods bool
 
+	// LeaderElection starts Deployment using leader election loop
+	LeaderElection componentbaseconfig.LeaderElectionConfiguration
+
 	// Logging specifies the options of logging.
-	// Refer [Logs Options](https://github.com/kubernetes/component-base/blob/master/logs/options.go) for more information.
-	Logging componentbaseconfig.LoggingConfiguration
+	// Refer [Logs Options](https://github.com/kubernetes/component-base/blob/master/logs/api/v1/options.go) for more information.
+	Logging registry.LoggingConfiguration
 }

pkg/apis/componentconfig/types_pluginargs.go

@@ -0,0 +1,133 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package componentconfig
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/descheduler/pkg/api"
+)
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemovePodsViolatingNodeTaintsArgs holds arguments used to configure the RemovePodsViolatingNodeTaints plugin.
+type RemovePodsViolatingNodeTaintsArgs struct {
+	metav1.TypeMeta
+
+	Namespaces              *api.Namespaces
+	LabelSelector           *metav1.LabelSelector
+	IncludePreferNoSchedule bool
+	ExcludedTaints          []string
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemoveFailedPodsArgs holds arguments used to configure RemoveFailedPods plugin.
+type RemoveFailedPodsArgs struct {
+	metav1.TypeMeta
+
+	Namespaces              *api.Namespaces
+	LabelSelector           *metav1.LabelSelector
+	ExcludeOwnerKinds       []string
+	MinPodLifetimeSeconds   *uint
+	Reasons                 []string
+	IncludingInitContainers bool
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemovePodsViolatingNodeAffinityArgs holds arguments used to configure RemovePodsViolatingNodeAffinity plugin.
+type RemovePodsViolatingNodeAffinityArgs struct {
+	metav1.TypeMeta
+
+	Namespaces       *api.Namespaces
+	LabelSelector    *metav1.LabelSelector
+	NodeAffinityType []string
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemovePodsHavingTooManyRestartsArgs holds arguments used to configure RemovePodsHavingTooManyRestarts plugin.
+type RemovePodsHavingTooManyRestartsArgs struct {
+	metav1.TypeMeta
+
+	Namespaces              *api.Namespaces
+	LabelSelector           *metav1.LabelSelector
+	PodRestartThreshold     int32
+	IncludingInitContainers bool
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+type RemoveDuplicatesArgs struct {
+	metav1.TypeMeta
+
+	Namespaces        *api.Namespaces
+	ExcludeOwnerKinds []string
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// PodLifeTimeArgs holds arguments used to configure PodLifeTime plugin.
+type PodLifeTimeArgs struct {
+	metav1.TypeMeta
+
+	Namespaces            *api.Namespaces
+	LabelSelector         *metav1.LabelSelector
+	MaxPodLifeTimeSeconds *uint
+	States                []string
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemovePodsViolatingTopologySpreadConstraintArgs holds arguments used to configure RemovePodsViolatingTopologySpreadConstraint plugin.
+type RemovePodsViolatingTopologySpreadConstraintArgs struct {
+	metav1.TypeMeta
+
+	Namespaces             *api.Namespaces
+	LabelSelector          *metav1.LabelSelector
+	IncludeSoftConstraints bool
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// RemovePodsViolatingInterPodAntiAffinity holds arguments used to configure RemovePodsViolatingInterPodAntiAffinity plugin.
+type RemovePodsViolatingInterPodAntiAffinityArgs struct {
+	metav1.TypeMeta
+
+	Namespaces    *api.Namespaces
+	LabelSelector *metav1.LabelSelector
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+type LowNodeUtilizationArgs struct {
+	metav1.TypeMeta
+
+	UseDeviationThresholds bool
+	Thresholds             api.ResourceThresholds
+	TargetThresholds       api.ResourceThresholds
+	NumberOfNodes          int
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+type HighNodeUtilizationArgs struct {
+	metav1.TypeMeta
+
+	Thresholds    api.ResourceThresholds
+	NumberOfNodes int
+}

pkg/apis/componentconfig/v1alpha1/types.go

@@ -19,9 +19,9 @@ package v1alpha1
 import (
 	"time"
 
-	componentbaseconfig "k8s.io/component-base/config"
-
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	componentbaseconfig "k8s.io/component-base/config"
+	registry "k8s.io/component-base/logs/api/v1"
 )
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
@@ -54,7 +54,10 @@ type DeschedulerConfiguration struct {
 	// IgnorePVCPods sets whether PVC pods should be allowed to be evicted
 	IgnorePVCPods bool `json:"ignorePvcPods,omitempty"`
 
+	// LeaderElection starts Deployment using leader election loop
+	LeaderElection componentbaseconfig.LeaderElectionConfiguration `json:"leaderElection,omitempty"`
+
 	// Logging specifies the options of logging.
-	// Refer [Logs Options](https://github.com/kubernetes/component-base/blob/master/logs/options.go) for more information.
-	Logging componentbaseconfig.LoggingConfiguration `json:"logging,omitempty"`
+	// Refer [Logs Options](https://github.com/kubernetes/component-base/blob/master/logs/api/v1/options.go) for more information.
+	Logging registry.LoggingConfiguration `json:"logging,omitempty"`
 }

pkg/apis/componentconfig/v1alpha1/zz_generated.conversion.go

@@ -58,6 +58,7 @@ func autoConvert_v1alpha1_DeschedulerConfiguration_To_componentconfig_Deschedule
 	out.MaxNoOfPodsToEvictPerNode = in.MaxNoOfPodsToEvictPerNode
 	out.EvictLocalStoragePods = in.EvictLocalStoragePods
 	out.IgnorePVCPods = in.IgnorePVCPods
+	out.LeaderElection = in.LeaderElection
 	out.Logging = in.Logging
 	return nil
 }
@@ -76,6 +77,7 @@ func autoConvert_componentconfig_DeschedulerConfiguration_To_v1alpha1_Deschedule
 	out.MaxNoOfPodsToEvictPerNode = in.MaxNoOfPodsToEvictPerNode
 	out.EvictLocalStoragePods = in.EvictLocalStoragePods
 	out.IgnorePVCPods = in.IgnorePVCPods
+	out.LeaderElection = in.LeaderElection
 	out.Logging = in.Logging
 	return nil
 }

pkg/apis/componentconfig/v1alpha1/zz_generated.deepcopy.go

@@ -29,6 +29,7 @@ import (
 func (in *DeschedulerConfiguration) DeepCopyInto(out *DeschedulerConfiguration) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
+	out.LeaderElection = in.LeaderElection
 	in.Logging.DeepCopyInto(&out.Logging)
 	return
 }

pkg/apis/componentconfig/validation/validation_pluginargs.go

@@ -0,0 +1,203 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package validation
+
+import (
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+	"k8s.io/apimachinery/pkg/util/sets"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+)
+
+const (
+	// MinResourcePercentage is the minimum value of a resource's percentage
+	MinResourcePercentage = 0
+	// MaxResourcePercentage is the maximum value of a resource's percentage
+	MaxResourcePercentage = 100
+)
+
+// ValidateRemovePodsViolatingNodeTaintsArgs validates RemovePodsViolatingNodeTaints arguments
+func ValidateRemovePodsViolatingNodeTaintsArgs(args *componentconfig.RemovePodsViolatingNodeTaintsArgs) error {
+	return errorsAggregate(
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+	)
+}
+
+// ValidateRemoveFailedPodsArgs validates RemoveFailedPods arguments
+func ValidateRemoveFailedPodsArgs(args *componentconfig.RemoveFailedPodsArgs) error {
+	return errorsAggregate(
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+	)
+}
+
+// ValidateRemovePodsHavingTooManyRestartsArgs validates RemovePodsHavingTooManyRestarts arguments
+func ValidateRemovePodsHavingTooManyRestartsArgs(args *componentconfig.RemovePodsHavingTooManyRestartsArgs) error {
+	return errorsAggregate(
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+		validatePodRestartThreshold(args.PodRestartThreshold),
+	)
+}
+
+// ValidateRemovePodsViolatingNodeAffinityArgs validates RemovePodsViolatingNodeAffinity arguments
+func ValidateRemovePodsViolatingNodeAffinityArgs(args *componentconfig.RemovePodsViolatingNodeAffinityArgs) error {
+	var err error
+	if args == nil || len(args.NodeAffinityType) == 0 {
+		err = fmt.Errorf("nodeAffinityType needs to be set")
+	}
+
+	return errorsAggregate(
+		err,
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+	)
+}
+
+// ValidatePodLifeTimeArgs validates PodLifeTime arguments
+func ValidatePodLifeTimeArgs(args *componentconfig.PodLifeTimeArgs) error {
+	var err error
+	if args.MaxPodLifeTimeSeconds == nil {
+		err = fmt.Errorf("MaxPodLifeTimeSeconds not set")
+	}
+
+	return errorsAggregate(
+		err,
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+		validatePodLifeTimeStates(args.States),
+	)
+}
+
+func ValidateRemoveDuplicatesArgs(args *componentconfig.RemoveDuplicatesArgs) error {
+	return validateNamespaceArgs(args.Namespaces)
+}
+
+// ValidateRemovePodsViolatingTopologySpreadConstraintArgs validates RemovePodsViolatingTopologySpreadConstraint arguments
+func ValidateRemovePodsViolatingTopologySpreadConstraintArgs(args *componentconfig.RemovePodsViolatingTopologySpreadConstraintArgs) error {
+	return errorsAggregate(
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+	)
+}
+
+// ValidateRemovePodsViolatingInterPodAntiAffinityArgs validates ValidateRemovePodsViolatingInterPodAntiAffinity arguments
+func ValidateRemovePodsViolatingInterPodAntiAffinityArgs(args *componentconfig.RemovePodsViolatingInterPodAntiAffinityArgs) error {
+	return errorsAggregate(
+		validateNamespaceArgs(args.Namespaces),
+		validateLabelSelectorArgs(args.LabelSelector),
+	)
+}
+
+// errorsAggregate converts all arg validation errors to a single error interface.
+// if no errors, it will return nil.
+func errorsAggregate(errors ...error) error {
+	return utilerrors.NewAggregate(errors)
+}
+
+func validateNamespaceArgs(namespaces *api.Namespaces) error {
+	// At most one of include/exclude can be set
+	if namespaces != nil && len(namespaces.Include) > 0 && len(namespaces.Exclude) > 0 {
+		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
+	}
+
+	return nil
+}
+
+func validateLabelSelectorArgs(labelSelector *metav1.LabelSelector) error {
+	if labelSelector != nil {
+		if _, err := metav1.LabelSelectorAsSelector(labelSelector); err != nil {
+			return fmt.Errorf("failed to get label selectors from strategy's params: %+v", err)
+		}
+	}
+
+	return nil
+}
+
+func validatePodRestartThreshold(podRestartThreshold int32) error {
+	if podRestartThreshold < 1 {
+		return fmt.Errorf("PodsHavingTooManyRestarts threshold not set")
+	}
+	return nil
+}
+
+func validatePodLifeTimeStates(states []string) error {
+	podLifeTimeAllowedStates := sets.NewString(
+		string(v1.PodRunning),
+		string(v1.PodPending),
+
+		// Container state reasons: https://github.com/kubernetes/kubernetes/blob/release-1.24/pkg/kubelet/kubelet_pods.go#L76-L79
+		"PodInitializing",
+		"ContainerCreating",
+	)
+
+	if !podLifeTimeAllowedStates.HasAll(states...) {
+		return fmt.Errorf("states must be one of %v", podLifeTimeAllowedStates.List())
+	}
+
+	return nil
+}
+
+func ValidateHighNodeUtilizationArgs(args *componentconfig.HighNodeUtilizationArgs) error {
+	return validateThresholds(args.Thresholds)
+}
+
+func ValidateLowNodeUtilizationArgs(args *componentconfig.LowNodeUtilizationArgs) error {
+	return validateLowNodeUtilizationThresholds(args.Thresholds, args.TargetThresholds, args.UseDeviationThresholds)
+}
+
+func validateLowNodeUtilizationThresholds(thresholds, targetThresholds api.ResourceThresholds, useDeviationThresholds bool) error {
+	// validate thresholds and targetThresholds config
+	if err := validateThresholds(thresholds); err != nil {
+		return fmt.Errorf("thresholds config is not valid: %v", err)
+	}
+	if err := validateThresholds(targetThresholds); err != nil {
+		return fmt.Errorf("targetThresholds config is not valid: %v", err)
+	}
+
+	// validate if thresholds and targetThresholds have same resources configured
+	if len(thresholds) != len(targetThresholds) {
+		return fmt.Errorf("thresholds and targetThresholds configured different resources")
+	}
+	for resourceName, value := range thresholds {
+		if targetValue, ok := targetThresholds[resourceName]; !ok {
+			return fmt.Errorf("thresholds and targetThresholds configured different resources")
+		} else if value > targetValue && !useDeviationThresholds {
+			return fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", resourceName)
+		}
+	}
+	return nil
+}
+
+// validateThresholds checks if thresholds have valid resource name and resource percentage configured
+func validateThresholds(thresholds api.ResourceThresholds) error {
+	if len(thresholds) == 0 {
+		return fmt.Errorf("no resource threshold is configured")
+	}
+	for name, percent := range thresholds {
+		if percent < MinResourcePercentage || percent > MaxResourcePercentage {
+			return fmt.Errorf("%v threshold not in [%v, %v] range", name, MinResourcePercentage, MaxResourcePercentage)
+		}
+	}
+	return nil
+}

pkg/apis/componentconfig/validation/validation_pluginargs_test.go

@@ -0,0 +1,331 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package validation
+
+import (
+	"fmt"
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+)
+
+func TestValidateRemovePodsViolatingNodeTaintsArgs(t *testing.T) {
+	testCases := []struct {
+		description string
+		args        *componentconfig.RemovePodsViolatingNodeTaintsArgs
+		expectError bool
+	}{
+		{
+			description: "valid namespace args, no errors",
+			args: &componentconfig.RemovePodsViolatingNodeTaintsArgs{
+				Namespaces: &api.Namespaces{
+					Include: []string{"default"},
+				},
+			},
+			expectError: false,
+		},
+		{
+			description: "invalid namespaces args, expects error",
+			args: &componentconfig.RemovePodsViolatingNodeTaintsArgs{
+				Namespaces: &api.Namespaces{
+					Include: []string{"default"},
+					Exclude: []string{"kube-system"},
+				},
+			},
+			expectError: true,
+		},
+		{
+			description: "valid label selector args, no errors",
+			args: &componentconfig.RemovePodsViolatingNodeTaintsArgs{
+				LabelSelector: &metav1.LabelSelector{
+					MatchLabels: map[string]string{"role.kubernetes.io/node": ""},
+				},
+			},
+			expectError: false,
+		},
+		{
+			description: "invalid label selector args, expects errors",
+			args: &componentconfig.RemovePodsViolatingNodeTaintsArgs{
+				LabelSelector: &metav1.LabelSelector{
+					MatchExpressions: []metav1.LabelSelectorRequirement{
+						{
+							Operator: metav1.LabelSelectorOpIn,
+						},
+					},
+				},
+			},
+			expectError: true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			err := ValidateRemovePodsViolatingNodeTaintsArgs(tc.args)
+
+			hasError := err != nil
+			if tc.expectError != hasError {
+				t.Error("unexpected arg validation behavior")
+			}
+		})
+	}
+}
+
+func TestValidateRemovePodsViolatingNodeAffinityArgs(t *testing.T) {
+	testCases := []struct {
+		description string
+		args        *componentconfig.RemovePodsViolatingNodeAffinityArgs
+		expectError bool
+	}{
+		{
+			description: "nil NodeAffinityType args, expects errors",
+			args: &componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: nil,
+			},
+			expectError: true,
+		},
+		{
+			description: "empty NodeAffinityType args, expects errors",
+			args: &componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{},
+			},
+			expectError: true,
+		},
+		{
+			description: "valid NodeAffinityType args, no errors",
+			args: &componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			expectError: false,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			err := ValidateRemovePodsViolatingNodeAffinityArgs(tc.args)
+
+			hasError := err != nil
+			if tc.expectError != hasError {
+				t.Error("unexpected arg validation behavior")
+			}
+		})
+	}
+}
+
+func TestValidateRemovePodLifeTimeArgs(t *testing.T) {
+	testCases := []struct {
+		description string
+		args        *componentconfig.PodLifeTimeArgs
+		expectError bool
+	}{
+		{
+			description: "valid arg, no errors",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: func(i uint) *uint { return &i }(1),
+				States:                []string{string(v1.PodRunning)},
+			},
+			expectError: false,
+		},
+		{
+			description: "nil MaxPodLifeTimeSeconds arg, expects errors",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: nil,
+			},
+			expectError: true,
+		},
+		{
+			description: "invalid pod state arg, expects errors",
+			args: &componentconfig.PodLifeTimeArgs{
+				States: []string{string(v1.NodeRunning)},
+			},
+			expectError: true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			err := ValidatePodLifeTimeArgs(tc.args)
+
+			hasError := err != nil
+			if tc.expectError != hasError {
+				t.Error("unexpected arg validation behavior")
+			}
+		})
+	}
+}
+
+func TestValidateLowNodeUtilizationPluginConfig(t *testing.T) {
+	var extendedResource = v1.ResourceName("example.com/foo")
+	tests := []struct {
+		name             string
+		thresholds       api.ResourceThresholds
+		targetThresholds api.ResourceThresholds
+		errInfo          error
+	}{
+		{
+			name: "passing invalid thresholds",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 120,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+			},
+			errInfo: fmt.Errorf("thresholds config is not valid: %v", fmt.Errorf(
+				"%v threshold not in [%v, %v] range", v1.ResourceMemory, MinResourcePercentage, MaxResourcePercentage)),
+		},
+		{
+			name: "thresholds and targetThresholds configured different num of resources",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+				v1.ResourcePods:   80,
+			},
+			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
+		},
+		{
+			name: "thresholds and targetThresholds configured different resources",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  80,
+				v1.ResourcePods: 80,
+			},
+			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
+		},
+		{
+			name: "thresholds' CPU config value is greater than targetThresholds'",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    90,
+				v1.ResourceMemory: 20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+			},
+			errInfo: fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", v1.ResourceCPU),
+		},
+		{
+			name: "only thresholds configured extended resource",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+				extendedResource:  20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+			},
+			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
+		},
+		{
+			name: "only targetThresholds configured extended resource",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+				extendedResource:  80,
+			},
+			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
+		},
+		{
+			name: "thresholds and targetThresholds configured different extended resources",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+				extendedResource:  20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+				"example.com/bar": 80,
+			},
+			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
+		},
+		{
+			name: "thresholds' extended resource config value is greater than targetThresholds'",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+				extendedResource:  90,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+				extendedResource:  20,
+			},
+			errInfo: fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", extendedResource),
+		},
+		{
+			name: "passing valid plugin config",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+			},
+			errInfo: nil,
+		},
+		{
+			name: "passing valid plugin config with extended resource",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 20,
+				extendedResource:  20,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:    80,
+				v1.ResourceMemory: 80,
+				extendedResource:  80,
+			},
+			errInfo: nil,
+		},
+	}
+
+	for _, testCase := range tests {
+		args := &componentconfig.LowNodeUtilizationArgs{
+
+			Thresholds:       testCase.thresholds,
+			TargetThresholds: testCase.targetThresholds,
+		}
+		validateErr := validateLowNodeUtilizationThresholds(args.Thresholds, args.TargetThresholds, false)
+
+		if validateErr == nil || testCase.errInfo == nil {
+			if validateErr != testCase.errInfo {
+				t.Errorf("expected validity of plugin config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
+					testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
+			}
+		} else if validateErr.Error() != testCase.errInfo.Error() {
+			t.Errorf("expected validity of plugin config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
+				testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
+		}
+	}
+}

pkg/apis/componentconfig/zz_generated.deepcopy.go

@@ -22,13 +22,16 @@ limitations under the License.
 package componentconfig
 
 import (
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
+	api "sigs.k8s.io/descheduler/pkg/api"
 )
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *DeschedulerConfiguration) DeepCopyInto(out *DeschedulerConfiguration) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
+	out.LeaderElection = in.LeaderElection
 	in.Logging.DeepCopyInto(&out.Logging)
 	return
 }
@@ -50,3 +53,389 @@ func (in *DeschedulerConfiguration) DeepCopyObject() runtime.Object {
 	}
 	return nil
 }
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *HighNodeUtilizationArgs) DeepCopyInto(out *HighNodeUtilizationArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Thresholds != nil {
+		in, out := &in.Thresholds, &out.Thresholds
+		*out = make(api.ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new HighNodeUtilizationArgs.
+func (in *HighNodeUtilizationArgs) DeepCopy() *HighNodeUtilizationArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(HighNodeUtilizationArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *HighNodeUtilizationArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *LowNodeUtilizationArgs) DeepCopyInto(out *LowNodeUtilizationArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Thresholds != nil {
+		in, out := &in.Thresholds, &out.Thresholds
+		*out = make(api.ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.TargetThresholds != nil {
+		in, out := &in.TargetThresholds, &out.TargetThresholds
+		*out = make(api.ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new LowNodeUtilizationArgs.
+func (in *LowNodeUtilizationArgs) DeepCopy() *LowNodeUtilizationArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(LowNodeUtilizationArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *LowNodeUtilizationArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *PodLifeTimeArgs) DeepCopyInto(out *PodLifeTimeArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.MaxPodLifeTimeSeconds != nil {
+		in, out := &in.MaxPodLifeTimeSeconds, &out.MaxPodLifeTimeSeconds
+		*out = new(uint)
+		**out = **in
+	}
+	if in.States != nil {
+		in, out := &in.States, &out.States
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PodLifeTimeArgs.
+func (in *PodLifeTimeArgs) DeepCopy() *PodLifeTimeArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(PodLifeTimeArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *PodLifeTimeArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemoveDuplicatesArgs) DeepCopyInto(out *RemoveDuplicatesArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ExcludeOwnerKinds != nil {
+		in, out := &in.ExcludeOwnerKinds, &out.ExcludeOwnerKinds
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemoveDuplicatesArgs.
+func (in *RemoveDuplicatesArgs) DeepCopy() *RemoveDuplicatesArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemoveDuplicatesArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemoveDuplicatesArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemoveFailedPodsArgs) DeepCopyInto(out *RemoveFailedPodsArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ExcludeOwnerKinds != nil {
+		in, out := &in.ExcludeOwnerKinds, &out.ExcludeOwnerKinds
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	if in.MinPodLifetimeSeconds != nil {
+		in, out := &in.MinPodLifetimeSeconds, &out.MinPodLifetimeSeconds
+		*out = new(uint)
+		**out = **in
+	}
+	if in.Reasons != nil {
+		in, out := &in.Reasons, &out.Reasons
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemoveFailedPodsArgs.
+func (in *RemoveFailedPodsArgs) DeepCopy() *RemoveFailedPodsArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemoveFailedPodsArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemoveFailedPodsArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemovePodsHavingTooManyRestartsArgs) DeepCopyInto(out *RemovePodsHavingTooManyRestartsArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemovePodsHavingTooManyRestartsArgs.
+func (in *RemovePodsHavingTooManyRestartsArgs) DeepCopy() *RemovePodsHavingTooManyRestartsArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemovePodsHavingTooManyRestartsArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemovePodsHavingTooManyRestartsArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemovePodsViolatingInterPodAntiAffinityArgs) DeepCopyInto(out *RemovePodsViolatingInterPodAntiAffinityArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemovePodsViolatingInterPodAntiAffinityArgs.
+func (in *RemovePodsViolatingInterPodAntiAffinityArgs) DeepCopy() *RemovePodsViolatingInterPodAntiAffinityArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemovePodsViolatingInterPodAntiAffinityArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemovePodsViolatingInterPodAntiAffinityArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemovePodsViolatingNodeAffinityArgs) DeepCopyInto(out *RemovePodsViolatingNodeAffinityArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.NodeAffinityType != nil {
+		in, out := &in.NodeAffinityType, &out.NodeAffinityType
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemovePodsViolatingNodeAffinityArgs.
+func (in *RemovePodsViolatingNodeAffinityArgs) DeepCopy() *RemovePodsViolatingNodeAffinityArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemovePodsViolatingNodeAffinityArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemovePodsViolatingNodeAffinityArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemovePodsViolatingNodeTaintsArgs) DeepCopyInto(out *RemovePodsViolatingNodeTaintsArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ExcludedTaints != nil {
+		in, out := &in.ExcludedTaints, &out.ExcludedTaints
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemovePodsViolatingNodeTaintsArgs.
+func (in *RemovePodsViolatingNodeTaintsArgs) DeepCopy() *RemovePodsViolatingNodeTaintsArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemovePodsViolatingNodeTaintsArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemovePodsViolatingNodeTaintsArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *RemovePodsViolatingTopologySpreadConstraintArgs) DeepCopyInto(out *RemovePodsViolatingTopologySpreadConstraintArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = new(api.Namespaces)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LabelSelector != nil {
+		in, out := &in.LabelSelector, &out.LabelSelector
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RemovePodsViolatingTopologySpreadConstraintArgs.
+func (in *RemovePodsViolatingTopologySpreadConstraintArgs) DeepCopy() *RemovePodsViolatingTopologySpreadConstraintArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(RemovePodsViolatingTopologySpreadConstraintArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *RemovePodsViolatingTopologySpreadConstraintArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}

pkg/descheduler/client/client.go

@@ -26,7 +26,7 @@ import (
 	"k8s.io/client-go/tools/clientcmd"
 )
 
-func CreateClient(kubeconfig string) (clientset.Interface, error) {
+func CreateClient(kubeconfig string, userAgt string) (clientset.Interface, error) {
 	var cfg *rest.Config
 	if len(kubeconfig) != 0 {
 		master, err := GetMasterFromKubeconfig(kubeconfig)
@@ -47,7 +47,11 @@ func CreateClient(kubeconfig string) (clientset.Interface, error) {
 		}
 	}
 
-	return clientset.NewForConfig(cfg)
+	if len(userAgt) != 0 {
+		return clientset.NewForConfig(rest.AddUserAgent(cfg, userAgt))
+	} else {
+		return clientset.NewForConfig(cfg)
+	}
 }
 
 func GetMasterFromKubeconfig(filename string) (string, error) {

pkg/descheduler/descheduler.go

@@ -20,20 +20,20 @@ import (
 	"context"
 	"fmt"
 
+	"k8s.io/klog/v2"
+
 	v1 "k8s.io/api/core/v1"
-	policy "k8s.io/api/policy/v1beta1"
+	policy "k8s.io/api/policy/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/client-go/informers"
+	corev1informers "k8s.io/client-go/informers/core/v1"
+	schedulingv1informers "k8s.io/client-go/informers/scheduling/v1"
 	clientset "k8s.io/client-go/kubernetes"
 	fakeclientset "k8s.io/client-go/kubernetes/fake"
 	core "k8s.io/client-go/testing"
-	"k8s.io/klog/v2"
-
-	corev1informers "k8s.io/client-go/informers/core/v1"
-	schedulingv1informers "k8s.io/client-go/informers/scheduling/v1"
 
 	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
 	"sigs.k8s.io/descheduler/metrics"
@@ -43,18 +43,20 @@ import (
 	eutils "sigs.k8s.io/descheduler/pkg/descheduler/evictions/utils"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/descheduler/strategies"
-	"sigs.k8s.io/descheduler/pkg/descheduler/strategies/nodeutilization"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
+	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 func Run(ctx context.Context, rs *options.DeschedulerServer) error {
 	metrics.Register()
 
-	rsclient, err := client.CreateClient(rs.KubeconfigFile)
+	rsclient, eventClient, err := createClients(rs.KubeconfigFile)
 	if err != nil {
 		return err
 	}
 	rs.Client = rsclient
+	rs.EventClient = eventClient
 
 	deschedulerPolicy, err := LoadPolicyConfig(rs.PolicyConfigFile)
 	if err != nil {
@@ -69,16 +71,25 @@ func Run(ctx context.Context, rs *options.DeschedulerServer) error {
 		return err
 	}
 
-	// tie in root ctx with our wait stopChannel
-	stopChannel := make(chan struct{})
-	go func() {
-		<-ctx.Done()
-		close(stopChannel)
-	}()
-	return RunDeschedulerStrategies(ctx, rs, deschedulerPolicy, evictionPolicyGroupVersion, stopChannel)
+	runFn := func() error {
+		return RunDeschedulerStrategies(ctx, rs, deschedulerPolicy, evictionPolicyGroupVersion)
+	}
+
+	if rs.LeaderElection.LeaderElect && rs.DeschedulingInterval.Seconds() == 0 {
+		return fmt.Errorf("leaderElection must be used with deschedulingInterval")
+	}
+
+	if rs.LeaderElection.LeaderElect && !rs.DryRun {
+		if err := NewLeaderElection(runFn, rsclient, &rs.LeaderElection, ctx); err != nil {
+			return fmt.Errorf("leaderElection: %w", err)
+		}
+		return nil
+	}
+
+	return runFn()
 }
 
-type strategyFunction func(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc)
+type strategyFunction func(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter framework.EvictorPlugin, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc)
 
 func cachedClient(
 	realClient clientset.Interface,
@@ -156,13 +167,69 @@ func cachedClient(
 	return fakeClient, nil
 }
 
-func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer, deschedulerPolicy *api.DeschedulerPolicy, evictionPolicyGroupVersion string, stopChannel chan struct{}) error {
+// evictorImpl implements the Evictor interface so plugins
+// can evict a pod without importing a specific pod evictor
+type evictorImpl struct {
+	podEvictor    *evictions.PodEvictor
+	evictorFilter framework.EvictorPlugin
+}
+
+var _ framework.Evictor = &evictorImpl{}
+
+// Filter checks if a pod can be evicted
+func (ei *evictorImpl) Filter(pod *v1.Pod) bool {
+	return ei.evictorFilter.Filter(pod)
+}
+
+// Evict evicts a pod (no pre-check performed)
+func (ei *evictorImpl) Evict(ctx context.Context, pod *v1.Pod, opts evictions.EvictOptions) bool {
+	return ei.podEvictor.EvictPod(ctx, pod, opts)
+}
+
+func (ei *evictorImpl) NodeLimitExceeded(node *v1.Node) bool {
+	return ei.podEvictor.NodeLimitExceeded(node)
+}
+
+// handleImpl implements the framework handle which gets passed to plugins
+type handleImpl struct {
+	clientSet                 clientset.Interface
+	getPodsAssignedToNodeFunc podutil.GetPodsAssignedToNodeFunc
+	sharedInformerFactory     informers.SharedInformerFactory
+	evictor                   *evictorImpl
+}
+
+var _ framework.Handle = &handleImpl{}
+
+// ClientSet retrieves kube client set
+func (hi *handleImpl) ClientSet() clientset.Interface {
+	return hi.clientSet
+}
+
+// GetPodsAssignedToNodeFunc retrieves GetPodsAssignedToNodeFunc implementation
+func (hi *handleImpl) GetPodsAssignedToNodeFunc() podutil.GetPodsAssignedToNodeFunc {
+	return hi.getPodsAssignedToNodeFunc
+}
+
+// SharedInformerFactory retrieves shared informer factory
+func (hi *handleImpl) SharedInformerFactory() informers.SharedInformerFactory {
+	return hi.sharedInformerFactory
+}
+
+// Evictor retrieves evictor so plugins can filter and evict pods
+func (hi *handleImpl) Evictor() framework.Evictor {
+	return hi.evictor
+}
+
+func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer, deschedulerPolicy *api.DeschedulerPolicy, evictionPolicyGroupVersion string) error {
 	sharedInformerFactory := informers.NewSharedInformerFactory(rs.Client, 0)
 	nodeInformer := sharedInformerFactory.Core().V1().Nodes()
 	podInformer := sharedInformerFactory.Core().V1().Pods()
 	namespaceInformer := sharedInformerFactory.Core().V1().Namespaces()
 	priorityClassInformer := sharedInformerFactory.Scheduling().V1().PriorityClasses()
 
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
 	// create the informers
 	namespaceInformer.Informer()
 	priorityClassInformer.Informer()
@@ -172,20 +239,20 @@ func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer
 		return fmt.Errorf("build get pods assigned to node function error: %v", err)
 	}
 
-	sharedInformerFactory.Start(stopChannel)
-	sharedInformerFactory.WaitForCacheSync(stopChannel)
+	sharedInformerFactory.Start(ctx.Done())
+	sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
 	strategyFuncs := map[api.StrategyName]strategyFunction{
-		"RemoveDuplicates":                            strategies.RemoveDuplicatePods,
-		"LowNodeUtilization":                          nodeutilization.LowNodeUtilization,
-		"HighNodeUtilization":                         nodeutilization.HighNodeUtilization,
-		"RemovePodsViolatingInterPodAntiAffinity":     strategies.RemovePodsViolatingInterPodAntiAffinity,
-		"RemovePodsViolatingNodeAffinity":             strategies.RemovePodsViolatingNodeAffinity,
-		"RemovePodsViolatingNodeTaints":               strategies.RemovePodsViolatingNodeTaints,
-		"RemovePodsHavingTooManyRestarts":             strategies.RemovePodsHavingTooManyRestarts,
-		"PodLifeTime":                                 strategies.PodLifeTime,
-		"RemovePodsViolatingTopologySpreadConstraint": strategies.RemovePodsViolatingTopologySpreadConstraint,
-		"RemoveFailedPods":                            strategies.RemoveFailedPods,
+		"RemoveDuplicates":                            nil,
+		"LowNodeUtilization":                          nil,
+		"HighNodeUtilization":                         nil,
+		"RemovePodsViolatingInterPodAntiAffinity":     nil,
+		"RemovePodsViolatingNodeAffinity":             nil,
+		"RemovePodsViolatingNodeTaints":               nil,
+		"RemovePodsHavingTooManyRestarts":             nil,
+		"PodLifeTime":                                 nil,
+		"RemovePodsViolatingTopologySpreadConstraint": nil,
+		"RemoveFailedPods":                            nil,
 	}
 
 	var nodeSelector string
@@ -219,17 +286,27 @@ func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer
 		ignorePvcPods = *deschedulerPolicy.IgnorePVCPods
 	}
 
+	var eventClient clientset.Interface
+	if rs.DryRun {
+		eventClient = fakeclientset.NewSimpleClientset()
+	} else {
+		eventClient = rs.Client
+	}
+
+	eventBroadcaster, eventRecorder := utils.GetRecorderAndBroadcaster(ctx, eventClient)
+	defer eventBroadcaster.Shutdown()
+
 	wait.NonSlidingUntil(func() {
 		nodes, err := nodeutil.ReadyNodes(ctx, rs.Client, nodeInformer, nodeSelector)
 		if err != nil {
 			klog.V(1).InfoS("Unable to get ready nodes", "err", err)
-			close(stopChannel)
+			cancel()
 			return
 		}
 
 		if len(nodes) <= 1 {
 			klog.V(1).InfoS("The cluster size is 0 or 1 meaning eviction causes service disruption or degradation. So aborting..")
-			close(stopChannel)
+			cancel()
 			return
 		}
 
@@ -271,17 +348,75 @@ func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer
 			deschedulerPolicy.MaxNoOfPodsToEvictPerNode,
 			deschedulerPolicy.MaxNoOfPodsToEvictPerNamespace,
 			nodes,
-			evictLocalStoragePods,
-			evictSystemCriticalPods,
-			ignorePvcPods,
-			evictBarePods,
 			!rs.DisableMetrics,
+			eventRecorder,
 		)
 
 		for name, strategy := range deschedulerPolicy.Strategies {
 			if f, ok := strategyFuncs[name]; ok {
 				if strategy.Enabled {
-					f(ctx, rs.Client, strategy, nodes, podEvictor, getPodsAssignedToNode)
+					params := strategy.Params
+					if params == nil {
+						params = &api.StrategyParameters{}
+					}
+
+					nodeFit := false
+					if name != "PodLifeTime" {
+						nodeFit = params.NodeFit
+					}
+
+					// TODO(jchaloup): once all strategies are migrated move this check under
+					// the default evictor args validation
+					if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
+						klog.V(1).ErrorS(fmt.Errorf("priority threshold misconfigured"), "only one of priorityThreshold fields can be set", "pluginName", name)
+						continue
+					}
+					thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, rs.Client, strategy.Params)
+					if err != nil {
+						klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
+						continue
+					}
+
+					defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+						EvictLocalStoragePods:   evictLocalStoragePods,
+						EvictSystemCriticalPods: evictSystemCriticalPods,
+						IgnorePvcPods:           ignorePvcPods,
+						EvictFailedBarePods:     evictBarePods,
+						NodeFit:                 nodeFit,
+						PriorityThreshold: &api.PriorityThreshold{
+							Value: &thresholdPriority,
+						},
+					}
+
+					evictorFilter, _ := defaultevictor.New(
+						defaultevictorArgs,
+						&handleImpl{
+							clientSet:                 rs.Client,
+							getPodsAssignedToNodeFunc: getPodsAssignedToNode,
+							sharedInformerFactory:     sharedInformerFactory,
+						},
+					)
+
+					handle := &handleImpl{
+						clientSet:                 rs.Client,
+						getPodsAssignedToNodeFunc: getPodsAssignedToNode,
+						sharedInformerFactory:     sharedInformerFactory,
+						evictor: &evictorImpl{
+							podEvictor:    podEvictor,
+							evictorFilter: evictorFilter.(framework.EvictorPlugin),
+						},
+					}
+
+					// TODO: strategyName should be accessible from within the strategy using a framework
+					// handle or function which the Evictor has access to. For migration/in-progress framework
+					// work, we are currently passing this via context. To be removed
+					// (See discussion thread https://github.com/kubernetes-sigs/descheduler/pull/885#discussion_r919962292)
+					childCtx := context.WithValue(ctx, "strategyName", string(name))
+					if pgFnc, exists := pluginsMap[string(name)]; exists {
+						pgFnc(childCtx, nodes, params, handle)
+					} else {
+						f(childCtx, rs.Client, strategy, nodes, podEvictor, evictorFilter.(framework.EvictorPlugin), getPodsAssignedToNode)
+					}
 				}
 			} else {
 				klog.ErrorS(fmt.Errorf("unknown strategy name"), "skipping strategy", "strategy", name)
@@ -292,9 +427,23 @@ func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer
 
 		// If there was no interval specified, send a signal to the stopChannel to end the wait.Until loop after 1 iteration
 		if rs.DeschedulingInterval.Seconds() == 0 {
-			close(stopChannel)
+			cancel()
 		}
-	}, rs.DeschedulingInterval, stopChannel)
+	}, rs.DeschedulingInterval, ctx.Done())
 
 	return nil
 }
+
+func createClients(kubeconfig string) (clientset.Interface, clientset.Interface, error) {
+	kClient, err := client.CreateClient(kubeconfig, "descheduler")
+	if err != nil {
+		return nil, nil, err
+	}
+
+	eventClient, err := client.CreateClient(kubeconfig, "")
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return kClient, eventClient, nil
+}

pkg/descheduler/descheduler_test.go

@@ -3,14 +3,15 @@ package descheduler
 import (
 	"context"
 	"fmt"
-	"strings"
 	"testing"
 	"time"
 
 	v1 "k8s.io/api/core/v1"
+	policy "k8s.io/api/policy/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/apimachinery/pkg/runtime"
 	fakeclientset "k8s.io/client-go/kubernetes/fake"
+	core "k8s.io/client-go/testing"
 	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
 	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/test"
@@ -27,6 +28,7 @@ func TestTaintsUpdated(t *testing.T) {
 	}
 
 	client := fakeclientset.NewSimpleClientset(n1, n2, p1)
+	eventClient := fakeclientset.NewSimpleClientset(n1, n2, p1)
 	dp := &api.DeschedulerPolicy{
 		Strategies: api.StrategyList{
 			"RemovePodsViolatingNodeTaints": api.DeschedulerStrategy{
@@ -35,29 +37,12 @@ func TestTaintsUpdated(t *testing.T) {
 		},
 	}
 
-	stopChannel := make(chan struct{})
-	defer close(stopChannel)
-
 	rs, err := options.NewDeschedulerServer()
 	if err != nil {
 		t.Fatalf("Unable to initialize server: %v", err)
 	}
 	rs.Client = client
-	rs.DeschedulingInterval = 100 * time.Millisecond
-	errChan := make(chan error, 1)
-	defer close(errChan)
-	go func() {
-		err := RunDeschedulerStrategies(ctx, rs, dp, "v1beta1", stopChannel)
-		errChan <- err
-	}()
-	select {
-	case err := <-errChan:
-		if err != nil {
-			t.Fatalf("Unable to run descheduler strategies: %v", err)
-		}
-	case <-time.After(1 * time.Second):
-		// Wait for few cycles and then verify the only pod still exists
-	}
+	rs.EventClient = eventClient
 
 	pods, err := client.CoreV1().Pods(p1.Namespace).List(ctx, metav1.ListOptions{})
 	if err != nil {
@@ -80,24 +65,154 @@ func TestTaintsUpdated(t *testing.T) {
 		t.Fatalf("Unable to update node: %v\n", err)
 	}
 
-	if err := wait.PollImmediate(100*time.Millisecond, time.Second, func() (bool, error) {
-		// Get over evicted pod result in panic
-		//pods, err := client.CoreV1().Pods(p1.Namespace).Get(p1.Name, metav1.GetOptions{})
-		// List is better, it does not panic.
-		// Though once the pod is evicted, List starts to error with "can't assign or convert v1beta1.Eviction into v1.Pod"
-		pods, err := client.CoreV1().Pods(p1.Namespace).List(ctx, metav1.ListOptions{})
-		if err == nil {
-			if len(pods.Items) > 0 {
-				return false, nil
-			}
-			return true, nil
-		}
-		if strings.Contains(err.Error(), "can't assign or convert v1beta1.Eviction into v1.Pod") {
-			return true, nil
-		}
+	var evictedPods []string
+	client.PrependReactor("create", "pods", podEvictionReactionFuc(&evictedPods))
 
-		return false, nil
-	}); err != nil {
-		t.Fatalf("Unable to evict pod, node taint did not get propagated to descheduler strategies")
+	if err := RunDeschedulerStrategies(ctx, rs, dp, "v1"); err != nil {
+		t.Fatalf("Unable to run descheduler strategies: %v", err)
+	}
+
+	if len(evictedPods) != 1 {
+		t.Fatalf("Unable to evict pod, node taint did not get propagated to descheduler strategies %v\n", err)
+	}
+}
+
+func TestDuplicate(t *testing.T) {
+	ctx := context.Background()
+	node1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	node2 := test.BuildTestNode("n2", 2000, 3000, 10, nil)
+
+	p1 := test.BuildTestPod("p1", 100, 0, node1.Name, nil)
+	p1.Namespace = "dev"
+	p2 := test.BuildTestPod("p2", 100, 0, node1.Name, nil)
+	p2.Namespace = "dev"
+	p3 := test.BuildTestPod("p3", 100, 0, node1.Name, nil)
+	p3.Namespace = "dev"
+
+	ownerRef1 := test.GetReplicaSetOwnerRefList()
+	p1.ObjectMeta.OwnerReferences = ownerRef1
+	p2.ObjectMeta.OwnerReferences = ownerRef1
+	p3.ObjectMeta.OwnerReferences = ownerRef1
+
+	client := fakeclientset.NewSimpleClientset(node1, node2, p1, p2, p3)
+	eventClient := fakeclientset.NewSimpleClientset(node1, node2, p1, p2, p3)
+	dp := &api.DeschedulerPolicy{
+		Strategies: api.StrategyList{
+			"RemoveDuplicates": api.DeschedulerStrategy{
+				Enabled: true,
+			},
+		},
+	}
+
+	rs, err := options.NewDeschedulerServer()
+	if err != nil {
+		t.Fatalf("Unable to initialize server: %v", err)
+	}
+	rs.Client = client
+	rs.EventClient = eventClient
+
+	pods, err := client.CoreV1().Pods(p1.Namespace).List(ctx, metav1.ListOptions{})
+	if err != nil {
+		t.Errorf("Unable to list pods: %v", err)
+	}
+
+	if len(pods.Items) != 3 {
+		t.Errorf("Pods number should be 3 before evict")
+	}
+
+	var evictedPods []string
+	client.PrependReactor("create", "pods", podEvictionReactionFuc(&evictedPods))
+
+	if err := RunDeschedulerStrategies(ctx, rs, dp, "v1"); err != nil {
+		t.Fatalf("Unable to run descheduler strategies: %v", err)
+	}
+
+	if len(evictedPods) == 0 {
+		t.Fatalf("Unable to evict pod, node taint did not get propagated to descheduler strategies %v\n", err)
+	}
+}
+
+func TestRootCancel(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	n1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	n2 := test.BuildTestNode("n2", 2000, 3000, 10, nil)
+	client := fakeclientset.NewSimpleClientset(n1, n2)
+	eventClient := fakeclientset.NewSimpleClientset(n1, n2)
+	dp := &api.DeschedulerPolicy{
+		Strategies: api.StrategyList{}, // no strategies needed for this test
+	}
+
+	rs, err := options.NewDeschedulerServer()
+	if err != nil {
+		t.Fatalf("Unable to initialize server: %v", err)
+	}
+	rs.Client = client
+	rs.EventClient = eventClient
+	rs.DeschedulingInterval = 100 * time.Millisecond
+	errChan := make(chan error, 1)
+	defer close(errChan)
+
+	go func() {
+		err := RunDeschedulerStrategies(ctx, rs, dp, "v1")
+		errChan <- err
+	}()
+	cancel()
+	select {
+	case err := <-errChan:
+		if err != nil {
+			t.Fatalf("Unable to run descheduler strategies: %v", err)
+		}
+	case <-time.After(1 * time.Second):
+		t.Fatal("Root ctx should have canceled immediately")
+	}
+}
+
+func TestRootCancelWithNoInterval(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	n1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	n2 := test.BuildTestNode("n2", 2000, 3000, 10, nil)
+	client := fakeclientset.NewSimpleClientset(n1, n2)
+	eventClient := fakeclientset.NewSimpleClientset(n1, n2)
+	dp := &api.DeschedulerPolicy{
+		Strategies: api.StrategyList{}, // no strategies needed for this test
+	}
+
+	rs, err := options.NewDeschedulerServer()
+	if err != nil {
+		t.Fatalf("Unable to initialize server: %v", err)
+	}
+	rs.Client = client
+	rs.EventClient = eventClient
+	rs.DeschedulingInterval = 0
+	errChan := make(chan error, 1)
+	defer close(errChan)
+
+	go func() {
+		err := RunDeschedulerStrategies(ctx, rs, dp, "v1")
+		errChan <- err
+	}()
+	cancel()
+	select {
+	case err := <-errChan:
+		if err != nil {
+			t.Fatalf("Unable to run descheduler strategies: %v", err)
+		}
+	case <-time.After(1 * time.Second):
+		t.Fatal("Root ctx should have canceled immediately")
+	}
+}
+
+func podEvictionReactionFuc(evictedPods *[]string) func(action core.Action) (bool, runtime.Object, error) {
+	return func(action core.Action) (bool, runtime.Object, error) {
+		if action.GetSubresource() == "eviction" {
+			createAct, matched := action.(core.CreateActionImpl)
+			if !matched {
+				return false, nil, fmt.Errorf("unable to convert action to core.CreateActionImpl")
+			}
+			if eviction, matched := createAct.Object.(*policy.Eviction); matched {
+				*evictedPods = append(*evictedPods, eviction.GetName())
+			}
+		}
+		return false, nil, nil // fallback to the default reactor
 	}
 }

pkg/descheduler/evictions/evictions.go

@@ -19,33 +19,21 @@ package evictions
 import (
 	"context"
 	"fmt"
-	"strings"
 
 	v1 "k8s.io/api/core/v1"
-	policy "k8s.io/api/policy/v1beta1"
+	policy "k8s.io/api/policy/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/apimachinery/pkg/util/errors"
 	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/client-go/kubernetes/scheme"
-	clientcorev1 "k8s.io/client-go/kubernetes/typed/core/v1"
-	"k8s.io/client-go/tools/record"
+	"k8s.io/client-go/tools/events"
 	"k8s.io/klog/v2"
 	"sigs.k8s.io/descheduler/metrics"
-	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 
 	eutils "sigs.k8s.io/descheduler/pkg/descheduler/evictions/utils"
 )
 
-const (
-	evictPodAnnotationKey = "descheduler.alpha.kubernetes.io/evict"
-)
-
 // nodePodEvictedCount keeps count of pods evicted on node
-type nodePodEvictedCount map[*v1.Node]uint
+type nodePodEvictedCount map[string]uint
 type namespacePodEvictCount map[string]uint
 
 type PodEvictor struct {
@@ -57,11 +45,8 @@ type PodEvictor struct {
 	maxPodsToEvictPerNamespace *uint
 	nodepodCount               nodePodEvictedCount
 	namespacePodCount          namespacePodEvictCount
-	evictFailedBarePods        bool
-	evictLocalStoragePods      bool
-	evictSystemCriticalPods    bool
-	ignorePvcPods              bool
 	metricsEnabled             bool
+	eventRecorder              events.EventRecorder
 }
 
 func NewPodEvictor(
@@ -71,17 +56,14 @@ func NewPodEvictor(
 	maxPodsToEvictPerNode *uint,
 	maxPodsToEvictPerNamespace *uint,
 	nodes []*v1.Node,
-	evictLocalStoragePods bool,
-	evictSystemCriticalPods bool,
-	ignorePvcPods bool,
-	evictFailedBarePods bool,
 	metricsEnabled bool,
+	eventRecorder events.EventRecorder,
 ) *PodEvictor {
 	var nodePodCount = make(nodePodEvictedCount)
 	var namespacePodCount = make(namespacePodEvictCount)
 	for _, node := range nodes {
 		// Initialize podsEvicted till now with 0.
-		nodePodCount[node] = 0
+		nodePodCount[node.Name] = 0
 	}
 
 	return &PodEvictor{
@@ -93,17 +75,14 @@ func NewPodEvictor(
 		maxPodsToEvictPerNamespace: maxPodsToEvictPerNamespace,
 		nodepodCount:               nodePodCount,
 		namespacePodCount:          namespacePodCount,
-		evictLocalStoragePods:      evictLocalStoragePods,
-		evictSystemCriticalPods:    evictSystemCriticalPods,
-		evictFailedBarePods:        evictFailedBarePods,
-		ignorePvcPods:              ignorePvcPods,
 		metricsEnabled:             metricsEnabled,
+		eventRecorder:              eventRecorder,
 	}
 }
 
 // NodeEvicted gives a number of pods evicted for node
 func (pe *PodEvictor) NodeEvicted(node *v1.Node) uint {
-	return pe.nodepodCount[node]
+	return pe.nodepodCount[node.Name]
 }
 
 // TotalEvicted gives a number of pods evicted through all nodes
@@ -115,56 +94,80 @@ func (pe *PodEvictor) TotalEvicted() uint {
 	return total
 }
 
-// EvictPod returns non-nil error only when evicting a pod on a node is not
-// possible (due to maxPodsToEvictPerNode constraint). Success is true when the pod
-// is evicted on the server side.
-func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, node *v1.Node, strategy string, reasons ...string) (bool, error) {
-	reason := strategy
-	if len(reasons) > 0 {
-		reason += " (" + strings.Join(reasons, ", ") + ")"
+// NodeLimitExceeded checks if the number of evictions for a node was exceeded
+func (pe *PodEvictor) NodeLimitExceeded(node *v1.Node) bool {
+	if pe.maxPodsToEvictPerNode != nil {
+		return pe.nodepodCount[node.Name] == *pe.maxPodsToEvictPerNode
 	}
-	if pe.maxPodsToEvictPerNode != nil && pe.nodepodCount[node]+1 > *pe.maxPodsToEvictPerNode {
-		if pe.metricsEnabled {
-			metrics.PodsEvicted.With(map[string]string{"result": "maximum number of pods per node reached", "strategy": strategy, "namespace": pod.Namespace, "node": node.Name}).Inc()
+	return false
+}
+
+// EvictOptions provides a handle for passing additional info to EvictPod
+type EvictOptions struct {
+	// Reason allows for passing details about the specific eviction for logging.
+	Reason string
+}
+
+// EvictPod evicts a pod while exercising eviction limits.
+// Returns true when the pod is evicted on the server side.
+func (pe *PodEvictor) EvictPod(ctx context.Context, pod *v1.Pod, opts EvictOptions) bool {
+	// TODO: Replace context-propagated Strategy name with a defined framework handle for accessing Strategy info
+	strategy := ""
+	if ctx.Value("strategyName") != nil {
+		strategy = ctx.Value("strategyName").(string)
+	}
+
+	if pod.Spec.NodeName != "" {
+		if pe.maxPodsToEvictPerNode != nil && pe.nodepodCount[pod.Spec.NodeName]+1 > *pe.maxPodsToEvictPerNode {
+			if pe.metricsEnabled {
+				metrics.PodsEvicted.With(map[string]string{"result": "maximum number of pods per node reached", "strategy": strategy, "namespace": pod.Namespace, "node": pod.Spec.NodeName}).Inc()
+			}
+			klog.ErrorS(fmt.Errorf("Maximum number of evicted pods per node reached"), "limit", *pe.maxPodsToEvictPerNode, "node", pod.Spec.NodeName)
+			return false
 		}
-		return false, fmt.Errorf("Maximum number %v of evicted pods per %q node reached", *pe.maxPodsToEvictPerNode, node.Name)
 	}
 
 	if pe.maxPodsToEvictPerNamespace != nil && pe.namespacePodCount[pod.Namespace]+1 > *pe.maxPodsToEvictPerNamespace {
 		if pe.metricsEnabled {
-			metrics.PodsEvicted.With(map[string]string{"result": "maximum number of pods per namespace reached", "strategy": strategy, "namespace": pod.Namespace, "node": node.Name}).Inc()
+			metrics.PodsEvicted.With(map[string]string{"result": "maximum number of pods per namespace reached", "strategy": strategy, "namespace": pod.Namespace, "node": pod.Spec.NodeName}).Inc()
 		}
-		return false, fmt.Errorf("Maximum number %v of evicted pods per %q namespace reached", *pe.maxPodsToEvictPerNamespace, pod.Namespace)
+		klog.ErrorS(fmt.Errorf("Maximum number of evicted pods per namespace reached"), "limit", *pe.maxPodsToEvictPerNamespace, "namespace", pod.Namespace)
+		return false
 	}
 
 	err := evictPod(ctx, pe.client, pod, pe.policyGroupVersion)
 	if err != nil {
 		// err is used only for logging purposes
-		klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod), "reason", reason)
+		klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod), "reason", opts.Reason)
 		if pe.metricsEnabled {
-			metrics.PodsEvicted.With(map[string]string{"result": "error", "strategy": strategy, "namespace": pod.Namespace, "node": node.Name}).Inc()
+			metrics.PodsEvicted.With(map[string]string{"result": "error", "strategy": strategy, "namespace": pod.Namespace, "node": pod.Spec.NodeName}).Inc()
 		}
-		return false, nil
+		return false
 	}
 
-	pe.nodepodCount[node]++
+	if pod.Spec.NodeName != "" {
+		pe.nodepodCount[pod.Spec.NodeName]++
+	}
 	pe.namespacePodCount[pod.Namespace]++
 
 	if pe.metricsEnabled {
-		metrics.PodsEvicted.With(map[string]string{"result": "success", "strategy": strategy, "namespace": pod.Namespace, "node": node.Name}).Inc()
+		metrics.PodsEvicted.With(map[string]string{"result": "success", "strategy": strategy, "namespace": pod.Namespace, "node": pod.Spec.NodeName}).Inc()
 	}
 
 	if pe.dryRun {
-		klog.V(1).InfoS("Evicted pod in dry run mode", "pod", klog.KObj(pod), "reason", reason)
+		klog.V(1).InfoS("Evicted pod in dry run mode", "pod", klog.KObj(pod), "reason", opts.Reason, "strategy", strategy, "node", pod.Spec.NodeName)
 	} else {
-		klog.V(1).InfoS("Evicted pod", "pod", klog.KObj(pod), "reason", reason)
-		eventBroadcaster := record.NewBroadcaster()
-		eventBroadcaster.StartStructuredLogging(3)
-		eventBroadcaster.StartRecordingToSink(&clientcorev1.EventSinkImpl{Interface: pe.client.CoreV1().Events(pod.Namespace)})
-		r := eventBroadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: "sigs.k8s.io.descheduler"})
-		r.Event(pod, v1.EventTypeNormal, "Descheduled", fmt.Sprintf("pod evicted by sigs.k8s.io/descheduler%s", reason))
+		klog.V(1).InfoS("Evicted pod", "pod", klog.KObj(pod), "reason", opts.Reason, "strategy", strategy, "node", pod.Spec.NodeName)
+		reason := opts.Reason
+		if len(reason) == 0 {
+			reason = strategy
+			if len(reason) == 0 {
+				reason = "NotSet"
+			}
+		}
+		pe.eventRecorder.Eventf(pod, nil, v1.EventTypeNormal, reason, "Descheduled", "pod evicted by sigs.k8s.io/descheduler")
 	}
-	return true, nil
+	return true
 }
 
 func evictPod(ctx context.Context, client clientset.Interface, pod *v1.Pod, policyGroupVersion string) error {
@@ -181,7 +184,7 @@ func evictPod(ctx context.Context, client clientset.Interface, pod *v1.Pod, poli
 		},
 		DeleteOptions: deleteOptions,
 	}
-	err := client.PolicyV1beta1().Evictions(eviction.Namespace).Evict(ctx, eviction)
+	err := client.PolicyV1().Evictions(eviction.Namespace).Evict(ctx, eviction)
 
 	if apierrors.IsTooManyRequests(err) {
 		return fmt.Errorf("error when evicting pod (ignoring) %q: %v", pod.Name, err)
@@ -191,171 +194,3 @@ func evictPod(ctx context.Context, client clientset.Interface, pod *v1.Pod, poli
 	}
 	return err
 }
-
-type Options struct {
-	priority      *int32
-	nodeFit       bool
-	labelSelector labels.Selector
-}
-
-// WithPriorityThreshold sets a threshold for pod's priority class.
-// Any pod whose priority class is lower is evictable.
-func WithPriorityThreshold(priority int32) func(opts *Options) {
-	return func(opts *Options) {
-		var p int32 = priority
-		opts.priority = &p
-	}
-}
-
-// WithNodeFit sets whether or not to consider taints, node selectors,
-// and pod affinity when evicting. A pod whose tolerations, node selectors,
-// and affinity match a node other than the one it is currently running on
-// is evictable.
-func WithNodeFit(nodeFit bool) func(opts *Options) {
-	return func(opts *Options) {
-		opts.nodeFit = nodeFit
-	}
-}
-
-// WithLabelSelector sets whether or not to apply label filtering when evicting.
-// Any pod matching the label selector is considered evictable.
-func WithLabelSelector(labelSelector labels.Selector) func(opts *Options) {
-	return func(opts *Options) {
-		opts.labelSelector = labelSelector
-	}
-}
-
-type constraint func(pod *v1.Pod) error
-
-type evictable struct {
-	constraints []constraint
-}
-
-// Evictable provides an implementation of IsEvictable(IsEvictable(pod *v1.Pod) bool).
-// The method accepts a list of options which allow to extend constraints
-// which decides when a pod is considered evictable.
-func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
-	options := &Options{}
-	for _, opt := range opts {
-		opt(options)
-	}
-
-	ev := &evictable{}
-	if pe.evictFailedBarePods {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			ownerRefList := podutil.OwnerRef(pod)
-			// Enable evictFailedBarePods to evict bare pods in failed phase
-			if len(ownerRefList) == 0 && pod.Status.Phase != v1.PodFailed {
-				return fmt.Errorf("pod does not have any ownerRefs and is not in failed phase")
-			}
-			return nil
-		})
-	} else {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			ownerRefList := podutil.OwnerRef(pod)
-			// Moved from IsEvictable function for backward compatibility
-			if len(ownerRefList) == 0 {
-				return fmt.Errorf("pod does not have any ownerRefs")
-			}
-			return nil
-		})
-	}
-	if !pe.evictSystemCriticalPods {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			// Moved from IsEvictable function to allow for disabling
-			if utils.IsCriticalPriorityPod(pod) {
-				return fmt.Errorf("pod has system critical priority")
-			}
-			return nil
-		})
-
-		if options.priority != nil {
-			ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-				if IsPodEvictableBasedOnPriority(pod, *options.priority) {
-					return nil
-				}
-				return fmt.Errorf("pod has higher priority than specified priority class threshold")
-			})
-		}
-	}
-	if !pe.evictLocalStoragePods {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			if utils.IsPodWithLocalStorage(pod) {
-				return fmt.Errorf("pod has local storage and descheduler is not configured with evictLocalStoragePods")
-			}
-			return nil
-		})
-	}
-	if pe.ignorePvcPods {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			if utils.IsPodWithPVC(pod) {
-				return fmt.Errorf("pod has a PVC and descheduler is configured to ignore PVC pods")
-			}
-			return nil
-		})
-	}
-	if options.nodeFit {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			if !nodeutil.PodFitsAnyOtherNode(pod, pe.nodes) {
-				return fmt.Errorf("pod does not fit on any other node because of nodeSelector(s), Taint(s), or nodes marked as unschedulable")
-			}
-			return nil
-		})
-	}
-	if options.labelSelector != nil && !options.labelSelector.Empty() {
-		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			if !options.labelSelector.Matches(labels.Set(pod.Labels)) {
-				return fmt.Errorf("pod labels do not match the labelSelector filter in the policy parameter")
-			}
-			return nil
-		})
-	}
-
-	return ev
-}
-
-// IsEvictable decides when a pod is evictable
-func (ev *evictable) IsEvictable(pod *v1.Pod) bool {
-	checkErrs := []error{}
-
-	ownerRefList := podutil.OwnerRef(pod)
-	if utils.IsDaemonsetPod(ownerRefList) {
-		checkErrs = append(checkErrs, fmt.Errorf("pod is a DaemonSet pod"))
-	}
-
-	if utils.IsMirrorPod(pod) {
-		checkErrs = append(checkErrs, fmt.Errorf("pod is a mirror pod"))
-	}
-
-	if utils.IsStaticPod(pod) {
-		checkErrs = append(checkErrs, fmt.Errorf("pod is a static pod"))
-	}
-
-	if utils.IsPodTerminating(pod) {
-		checkErrs = append(checkErrs, fmt.Errorf("pod is terminating"))
-	}
-
-	for _, c := range ev.constraints {
-		if err := c(pod); err != nil {
-			checkErrs = append(checkErrs, err)
-		}
-	}
-
-	if len(checkErrs) > 0 && !HaveEvictAnnotation(pod) {
-		klog.V(4).InfoS("Pod lacks an eviction annotation and fails the following checks", "pod", klog.KObj(pod), "checks", errors.NewAggregate(checkErrs).Error())
-		return false
-	}
-
-	return true
-}
-
-// HaveEvictAnnotation checks if the pod have evict annotation
-func HaveEvictAnnotation(pod *v1.Pod) bool {
-	_, found := pod.ObjectMeta.Annotations[evictPodAnnotationKey]
-	return found
-}
-
-// IsPodEvictableBasedOnPriority checks if the given pod is evictable based on priority resolved from pod Spec.
-func IsPodEvictableBasedOnPriority(pod *v1.Pod, priority int32) bool {
-	return pod.Spec.Priority == nil || *pod.Spec.Priority < priority
-}

pkg/descheduler/evictions/evictions_test.go

@@ -69,396 +69,6 @@ func TestEvictPod(t *testing.T) {
 	}
 }
 
-func TestIsEvictable(t *testing.T) {
-	n1 := test.BuildTestNode("node1", 1000, 2000, 13, nil)
-	lowPriority := int32(800)
-	highPriority := int32(900)
-
-	nodeTaintKey := "hardware"
-	nodeTaintValue := "gpu"
-
-	nodeLabelKey := "datacenter"
-	nodeLabelValue := "east"
-	type testCase struct {
-		pod                     *v1.Pod
-		nodes                   []*v1.Node
-		runBefore               func(*v1.Pod, []*v1.Node)
-		evictFailedBarePods     bool
-		evictLocalStoragePods   bool
-		evictSystemCriticalPods bool
-		priorityThreshold       *int32
-		nodeFit                 bool
-		result                  bool
-	}
-
-	testCases := []testCase{
-		{ // Failed pod eviction with no ownerRefs.
-			pod: test.BuildTestPod("bare_pod_failed", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Status.Phase = v1.PodFailed
-			},
-			evictFailedBarePods: false,
-			result:              false,
-		}, { // Normal pod eviction with no ownerRefs and evictFailedBarePods enabled
-			pod: test.BuildTestPod("bare_pod", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-			},
-			evictFailedBarePods: true,
-			result:              false,
-		}, { // Failed pod eviction with no ownerRefs
-			pod: test.BuildTestPod("bare_pod_failed_but_can_be_evicted", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Status.Phase = v1.PodFailed
-			},
-			evictFailedBarePods: true,
-			result:              true,
-		}, { // Normal pod eviction with normal ownerRefs
-			pod: test.BuildTestPod("p1", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Normal pod eviction with normal ownerRefs and descheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p2", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Normal pod eviction with replicaSet ownerRefs
-			pod: test.BuildTestPod("p3", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Normal pod eviction with replicaSet ownerRefs and descheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p4", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Normal pod eviction with statefulSet ownerRefs
-			pod: test.BuildTestPod("p18", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetStatefulSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Normal pod eviction with statefulSet ownerRefs and descheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p19", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.ObjectMeta.OwnerReferences = test.GetStatefulSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod not evicted because it is bound to a PV and evictLocalStoragePods = false
-			pod: test.BuildTestPod("p5", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Spec.Volumes = []v1.Volume{
-					{
-						Name: "sample",
-						VolumeSource: v1.VolumeSource{
-							HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
-							EmptyDir: &v1.EmptyDirVolumeSource{
-								SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
-						},
-					},
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  false,
-		}, { // Pod is evicted because it is bound to a PV and evictLocalStoragePods = true
-			pod: test.BuildTestPod("p6", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Spec.Volumes = []v1.Volume{
-					{
-						Name: "sample",
-						VolumeSource: v1.VolumeSource{
-							HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
-							EmptyDir: &v1.EmptyDirVolumeSource{
-								SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
-						},
-					},
-				}
-			},
-			evictLocalStoragePods:   true,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod is evicted because it is bound to a PV and evictLocalStoragePods = false, but it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p7", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Spec.Volumes = []v1.Volume{
-					{
-						Name: "sample",
-						VolumeSource: v1.VolumeSource{
-							HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
-							EmptyDir: &v1.EmptyDirVolumeSource{
-								SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
-						},
-					},
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod not evicted becasuse it is part of a daemonSet
-			pod: test.BuildTestPod("p8", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  false,
-		}, { // Pod is evicted becasuse it is part of a daemonSet, but it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p9", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod not evicted becasuse it is a mirror pod
-			pod: test.BuildTestPod("p10", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Annotations = test.GetMirrorPodAnnotation()
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  false,
-		}, { // Pod is evicted becasuse it is a mirror pod, but it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p11", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Annotations = test.GetMirrorPodAnnotation()
-				pod.Annotations["descheduler.alpha.kubernetes.io/evict"] = "true"
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod not evicted becasuse it has system critical priority
-			pod: test.BuildTestPod("p12", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				priority := utils.SystemCriticalPriority
-				pod.Spec.Priority = &priority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  false,
-		}, { // Pod is evicted becasuse it has system critical priority, but it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p13", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				priority := utils.SystemCriticalPriority
-				pod.Spec.Priority = &priority
-				pod.Annotations = map[string]string{
-					"descheduler.alpha.kubernetes.io/evict": "true",
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			result:                  true,
-		}, { // Pod not evicted becasuse it has a priority higher than the configured priority threshold
-			pod: test.BuildTestPod("p14", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Spec.Priority = &highPriority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			priorityThreshold:       &lowPriority,
-			result:                  false,
-		}, { // Pod is evicted becasuse it has a priority higher than the configured priority threshold, but it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p15", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.Spec.Priority = &highPriority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			priorityThreshold:       &lowPriority,
-			result:                  true,
-		}, { // Pod is evicted becasuse it has system critical priority, but evictSystemCriticalPods = true
-			pod: test.BuildTestPod("p16", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				priority := utils.SystemCriticalPriority
-				pod.Spec.Priority = &priority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: true,
-			result:                  true,
-		}, { // Pod is evicted becasuse it has system critical priority, but evictSystemCriticalPods = true and it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p16", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				priority := utils.SystemCriticalPriority
-				pod.Spec.Priority = &priority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: true,
-			result:                  true,
-		}, { // Pod is evicted becasuse it has a priority higher than the configured priority threshold, but evictSystemCriticalPods = true
-			pod: test.BuildTestPod("p17", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Spec.Priority = &highPriority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: true,
-			priorityThreshold:       &lowPriority,
-			result:                  true,
-		}, { // Pod is evicted becasuse it has a priority higher than the configured priority threshold, but evictSystemCriticalPods = true and it has scheduler.alpha.kubernetes.io/evict annotation
-			pod: test.BuildTestPod("p17", 400, 0, n1.Name, nil),
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
-				pod.Spec.Priority = &highPriority
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: true,
-			priorityThreshold:       &lowPriority,
-			result:                  true,
-		}, { // Pod with no tolerations running on normal node, all other nodes tainted
-			pod:   test.BuildTestPod("p1", 400, 0, n1.Name, nil),
-			nodes: []*v1.Node{test.BuildTestNode("node2", 1000, 2000, 13, nil), test.BuildTestNode("node3", 1000, 2000, 13, nil)},
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-
-				for _, node := range nodes {
-					node.Spec.Taints = []v1.Taint{
-						{
-							Key:    nodeTaintKey,
-							Value:  nodeTaintValue,
-							Effect: v1.TaintEffectNoSchedule,
-						},
-					}
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			nodeFit:                 true,
-			result:                  false,
-		}, { // Pod with correct tolerations running on normal node, all other nodes tainted
-			pod: test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
-				pod.Spec.Tolerations = []v1.Toleration{
-					{
-						Key:    nodeTaintKey,
-						Value:  nodeTaintValue,
-						Effect: v1.TaintEffectNoSchedule,
-					},
-				}
-			}),
-			nodes: []*v1.Node{test.BuildTestNode("node2", 1000, 2000, 13, nil), test.BuildTestNode("node3", 1000, 2000, 13, nil)},
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-
-				for _, node := range nodes {
-					node.Spec.Taints = []v1.Taint{
-						{
-							Key:    nodeTaintKey,
-							Value:  nodeTaintValue,
-							Effect: v1.TaintEffectNoSchedule,
-						},
-					}
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			nodeFit:                 true,
-			result:                  true,
-		}, { // Pod with incorrect node selector
-			pod: test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
-				pod.Spec.NodeSelector = map[string]string{
-					nodeLabelKey: "fail",
-				}
-			}),
-			nodes: []*v1.Node{test.BuildTestNode("node2", 1000, 2000, 13, nil), test.BuildTestNode("node3", 1000, 2000, 13, nil)},
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-
-				for _, node := range nodes {
-					node.ObjectMeta.Labels = map[string]string{
-						nodeLabelKey: nodeLabelValue,
-					}
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			nodeFit:                 true,
-			result:                  false,
-		}, { // Pod with correct node selector
-			pod: test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
-				pod.Spec.NodeSelector = map[string]string{
-					nodeLabelKey: nodeLabelValue,
-				}
-			}),
-			nodes: []*v1.Node{test.BuildTestNode("node2", 1000, 2000, 13, nil), test.BuildTestNode("node3", 1000, 2000, 13, nil)},
-			runBefore: func(pod *v1.Pod, nodes []*v1.Node) {
-				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
-
-				for _, node := range nodes {
-					node.ObjectMeta.Labels = map[string]string{
-						nodeLabelKey: nodeLabelValue,
-					}
-				}
-			},
-			evictLocalStoragePods:   false,
-			evictSystemCriticalPods: false,
-			nodeFit:                 true,
-			result:                  true,
-		},
-	}
-
-	for _, test := range testCases {
-		test.runBefore(test.pod, test.nodes)
-		nodes := append(test.nodes, n1)
-
-		podEvictor := &PodEvictor{
-			evictLocalStoragePods:   test.evictLocalStoragePods,
-			evictSystemCriticalPods: test.evictSystemCriticalPods,
-			evictFailedBarePods:     test.evictFailedBarePods,
-			nodes:                   nodes,
-		}
-
-		evictable := podEvictor.Evictable()
-		var opts []func(opts *Options)
-		if test.priorityThreshold != nil {
-			opts = append(opts, WithPriorityThreshold(*test.priorityThreshold))
-		}
-		if test.nodeFit {
-			opts = append(opts, WithNodeFit(true))
-		}
-		evictable = podEvictor.Evictable(opts...)
-
-		result := evictable.IsEvictable(test.pod)
-		if result != test.result {
-			t.Errorf("IsEvictable should return for pod %s %t, but it returns %t", test.pod.Name, test.result, result)
-		}
-
-	}
-}
 func TestPodTypes(t *testing.T) {
 	n1 := test.BuildTestNode("node1", 1000, 2000, 9, nil)
 	p1 := test.BuildTestPod("p1", 400, 0, n1.Name, nil)

pkg/descheduler/leaderelection.go

@@ -0,0 +1,99 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package descheduler
+
+import (
+	"context"
+	"fmt"
+	"k8s.io/apimachinery/pkg/util/uuid"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/leaderelection"
+	"k8s.io/client-go/tools/leaderelection/resourcelock"
+	componentbaseconfig "k8s.io/component-base/config"
+	"k8s.io/klog/v2"
+	"os"
+)
+
+// NewLeaderElection starts the leader election code loop
+func NewLeaderElection(
+	run func() error,
+	client clientset.Interface,
+	LeaderElectionConfig *componentbaseconfig.LeaderElectionConfiguration,
+	ctx context.Context,
+) error {
+	var id string
+
+	if hostname, err := os.Hostname(); err != nil {
+		// on errors, make sure we're unique
+		id = string(uuid.NewUUID())
+	} else {
+		// add a uniquifier so that two processes on the same host don't accidentally both become active
+		id = hostname + "_" + string(uuid.NewUUID())
+	}
+
+	klog.V(3).Infof("Assigned unique lease holder id: %s", id)
+
+	if len(LeaderElectionConfig.ResourceNamespace) == 0 {
+		return fmt.Errorf("namespace may not be empty")
+	}
+
+	if len(LeaderElectionConfig.ResourceName) == 0 {
+		return fmt.Errorf("name may not be empty")
+	}
+
+	lock, err := resourcelock.New(
+		LeaderElectionConfig.ResourceLock,
+		LeaderElectionConfig.ResourceNamespace,
+		LeaderElectionConfig.ResourceName,
+		client.CoreV1(),
+		client.CoordinationV1(),
+		resourcelock.ResourceLockConfig{
+			Identity: id,
+		},
+	)
+	if err != nil {
+		return fmt.Errorf("unable to create leader election lock: %v", err)
+	}
+
+	leaderelection.RunOrDie(ctx, leaderelection.LeaderElectionConfig{
+		Lock:            lock,
+		ReleaseOnCancel: true,
+		LeaseDuration:   LeaderElectionConfig.LeaseDuration.Duration,
+		RenewDeadline:   LeaderElectionConfig.RenewDeadline.Duration,
+		RetryPeriod:     LeaderElectionConfig.RetryPeriod.Duration,
+		Callbacks: leaderelection.LeaderCallbacks{
+			OnStartedLeading: func(ctx context.Context) {
+				klog.V(1).InfoS("Started leading")
+				err := run()
+				if err != nil {
+					klog.Error(err)
+				}
+			},
+			OnStoppedLeading: func() {
+				klog.V(1).InfoS("Leader lost")
+			},
+			OnNewLeader: func(identity string) {
+				// Just got the lock
+				if identity == id {
+					return
+				}
+				klog.V(1).Infof("New leader elected: %v", identity)
+			},
+		},
+	})
+	return nil
+}

pkg/descheduler/node/node.go

@@ -18,13 +18,16 @@ package node
 
 import (
 	"context"
+	"fmt"
 
 	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	coreinformers "k8s.io/client-go/informers/core/v1"
 	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/klog/v2"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
@@ -96,32 +99,92 @@ func IsReady(node *v1.Node) bool {
 	return true
 }
 
-// PodFitsAnyOtherNode checks if the given pod fits any of the given nodes, besides the node
-// the pod is already running on. The node fit is based on multiple criteria, like, pod node selector
-// matching the node label (including affinity), the taints on the node, and the node being schedulable or not.
-func PodFitsAnyOtherNode(pod *v1.Pod, nodes []*v1.Node) bool {
+// NodeFit returns true if the provided pod can be scheduled onto the provided node.
+// This function is used when the NodeFit pod filtering feature of the Descheduler is enabled.
+// This function currently considers a subset of the Kubernetes Scheduler's predicates when
+// deciding if a pod would fit on a node, but more predicates may be added in the future.
+func NodeFit(nodeIndexer podutil.GetPodsAssignedToNodeFunc, pod *v1.Pod, node *v1.Node) []error {
+	// Check node selector and required affinity
+	var errors []error
+	if ok, err := utils.PodMatchNodeSelector(pod, node); err != nil {
+		errors = append(errors, err)
+	} else if !ok {
+		errors = append(errors, fmt.Errorf("pod node selector does not match the node label"))
+	}
+	// Check taints (we only care about NoSchedule and NoExecute taints)
+	ok := utils.TolerationsTolerateTaintsWithFilter(pod.Spec.Tolerations, node.Spec.Taints, func(taint *v1.Taint) bool {
+		return taint.Effect == v1.TaintEffectNoSchedule || taint.Effect == v1.TaintEffectNoExecute
+	})
+	if !ok {
+		errors = append(errors, fmt.Errorf("pod does not tolerate taints on the node"))
+	}
+	// Check if the pod can fit on a node based off it's requests
+	if pod.Spec.NodeName == "" || pod.Spec.NodeName != node.Name {
+		ok, reqErrors := fitsRequest(nodeIndexer, pod, node)
+		if !ok {
+			errors = append(errors, reqErrors...)
+		}
+	}
+	// Check if node is schedulable
+	if IsNodeUnschedulable(node) {
+		errors = append(errors, fmt.Errorf("node is not schedulable"))
+	}
 
+	return errors
+}
+
+// PodFitsAnyOtherNode checks if the given pod will fit any of the given nodes, besides the node
+// the pod is already running on. The predicates used to determine if the pod will fit can be found in the NodeFit function.
+func PodFitsAnyOtherNode(nodeIndexer podutil.GetPodsAssignedToNodeFunc, pod *v1.Pod, nodes []*v1.Node) bool {
 	for _, node := range nodes {
 		// Skip node pod is already on
 		if node.Name == pod.Spec.NodeName {
 			continue
 		}
-		// Check node selector and required affinity
-		ok, err := utils.PodMatchNodeSelector(pod, node)
-		if err != nil || !ok {
-			continue
-		}
-		// Check taints (we only care about NoSchedule and NoExecute taints)
-		ok = utils.TolerationsTolerateTaintsWithFilter(pod.Spec.Tolerations, node.Spec.Taints, func(taint *v1.Taint) bool {
-			return taint.Effect == v1.TaintEffectNoSchedule || taint.Effect == v1.TaintEffectNoExecute
-		})
-		if !ok {
-			continue
-		}
-		// Check if node is schedulable
-		if !IsNodeUnschedulable(node) {
-			klog.V(2).InfoS("Pod can possibly be scheduled on a different node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+
+		errors := NodeFit(nodeIndexer, pod, node)
+		if len(errors) == 0 {
+			klog.V(4).InfoS("Pod fits on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
 			return true
+		} else {
+			klog.V(4).InfoS("Pod does not fit on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+			for _, err := range errors {
+				klog.V(4).InfoS(err.Error())
+			}
+		}
+	}
+	return false
+}
+
+// PodFitsAnyNode checks if the given pod will fit any of the given nodes. The predicates used
+// to determine if the pod will fit can be found in the NodeFit function.
+func PodFitsAnyNode(nodeIndexer podutil.GetPodsAssignedToNodeFunc, pod *v1.Pod, nodes []*v1.Node) bool {
+	for _, node := range nodes {
+		errors := NodeFit(nodeIndexer, pod, node)
+		if len(errors) == 0 {
+			klog.V(4).InfoS("Pod fits on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+			return true
+		} else {
+			klog.V(4).InfoS("Pod does not fit on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+			for _, err := range errors {
+				klog.V(4).InfoS(err.Error())
+			}
+		}
+	}
+	return false
+}
+
+// PodFitsCurrentNode checks if the given pod will fit onto the given node. The predicates used
+// to determine if the pod will fit can be found in the NodeFit function.
+func PodFitsCurrentNode(nodeIndexer podutil.GetPodsAssignedToNodeFunc, pod *v1.Pod, node *v1.Node) bool {
+	errors := NodeFit(nodeIndexer, pod, node)
+	if len(errors) == 0 {
+		klog.V(4).InfoS("Pod fits on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+		return true
+	} else {
+		klog.V(4).InfoS("Pod does not fit on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
+		for _, err := range errors {
+			klog.V(4).InfoS(err.Error())
 		}
 	}
 	return false
@@ -133,39 +196,95 @@ func IsNodeUnschedulable(node *v1.Node) bool {
 	return node.Spec.Unschedulable
 }
 
-// PodFitsAnyNode checks if the given pod fits any of the given nodes, based on
-// multiple criteria, like, pod node selector matching the node label, node
-// being schedulable or not.
-func PodFitsAnyNode(pod *v1.Pod, nodes []*v1.Node) bool {
-	for _, node := range nodes {
+// fitsRequest determines if a pod can fit on a node based on its resource requests. It returns true if
+// the pod will fit.
+func fitsRequest(nodeIndexer podutil.GetPodsAssignedToNodeFunc, pod *v1.Pod, node *v1.Node) (bool, []error) {
+	var insufficientResources []error
 
-		ok, err := utils.PodMatchNodeSelector(pod, node)
-		if err != nil || !ok {
-			continue
-		}
-		if !IsNodeUnschedulable(node) {
-			klog.V(2).InfoS("Pod can possibly be scheduled on a different node", "pod", klog.KObj(pod), "node", klog.KObj(node))
-			return true
-		}
+	// Get pod requests
+	podRequests, _ := utils.PodRequestsAndLimits(pod)
+	resourceNames := make([]v1.ResourceName, 0, len(podRequests))
+	for name := range podRequests {
+		resourceNames = append(resourceNames, name)
 	}
-	return false
-}
-
-// PodFitsCurrentNode checks if the given pod fits on the given node if the pod
-// node selector matches the node label.
-func PodFitsCurrentNode(pod *v1.Pod, node *v1.Node) bool {
-	ok, err := utils.PodMatchNodeSelector(pod, node)
 
+	availableResources, err := nodeAvailableResources(nodeIndexer, node, resourceNames)
 	if err != nil {
-		klog.ErrorS(err, "Failed to match node selector")
-		return false
+		return false, []error{err}
 	}
 
-	if !ok {
-		klog.V(2).InfoS("Pod does not fit on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
-		return false
+	podFitsOnNode := true
+	for _, resource := range resourceNames {
+		podResourceRequest := podRequests[resource]
+		availableResource, ok := availableResources[resource]
+		if !ok || podResourceRequest.MilliValue() > availableResource.MilliValue() {
+			insufficientResources = append(insufficientResources, fmt.Errorf("insufficient %v", resource))
+			podFitsOnNode = false
+		}
+	}
+	return podFitsOnNode, insufficientResources
+}
+
+// nodeAvailableResources returns resources mapped to the quanitity available on the node.
+func nodeAvailableResources(nodeIndexer podutil.GetPodsAssignedToNodeFunc, node *v1.Node, resourceNames []v1.ResourceName) (map[v1.ResourceName]*resource.Quantity, error) {
+	podsOnNode, err := podutil.ListPodsOnANode(node.Name, nodeIndexer, nil)
+	if err != nil {
+		return nil, err
+	}
+	nodeUtilization := NodeUtilization(podsOnNode, resourceNames)
+	remainingResources := map[v1.ResourceName]*resource.Quantity{
+		v1.ResourceCPU:    resource.NewMilliQuantity(node.Status.Allocatable.Cpu().MilliValue()-nodeUtilization[v1.ResourceCPU].MilliValue(), resource.DecimalSI),
+		v1.ResourceMemory: resource.NewQuantity(node.Status.Allocatable.Memory().Value()-nodeUtilization[v1.ResourceMemory].Value(), resource.BinarySI),
+		v1.ResourcePods:   resource.NewQuantity(node.Status.Allocatable.Pods().Value()-nodeUtilization[v1.ResourcePods].Value(), resource.DecimalSI),
+	}
+	for _, name := range resourceNames {
+		if !IsBasicResource(name) {
+			if _, exists := node.Status.Allocatable[name]; exists {
+				allocatableResource := node.Status.Allocatable[name]
+				remainingResources[name] = resource.NewQuantity(allocatableResource.Value()-nodeUtilization[name].Value(), resource.DecimalSI)
+			} else {
+				remainingResources[name] = resource.NewQuantity(0, resource.DecimalSI)
+			}
+		}
+	}
+
+	return remainingResources, nil
+}
+
+// NodeUtilization returns the resources requested by the given pods. Only resources supplied in the resourceNames parameter are calculated.
+func NodeUtilization(pods []*v1.Pod, resourceNames []v1.ResourceName) map[v1.ResourceName]*resource.Quantity {
+	totalReqs := map[v1.ResourceName]*resource.Quantity{
+		v1.ResourceCPU:    resource.NewMilliQuantity(0, resource.DecimalSI),
+		v1.ResourceMemory: resource.NewQuantity(0, resource.BinarySI),
+		v1.ResourcePods:   resource.NewQuantity(int64(len(pods)), resource.DecimalSI),
+	}
+	for _, name := range resourceNames {
+		if !IsBasicResource(name) {
+			totalReqs[name] = resource.NewQuantity(0, resource.DecimalSI)
+		}
+	}
+
+	for _, pod := range pods {
+		req, _ := utils.PodRequestsAndLimits(pod)
+		for _, name := range resourceNames {
+			quantity, ok := req[name]
+			if ok && name != v1.ResourcePods {
+				// As Quantity.Add says: Add adds the provided y quantity to the current value. If the current value is zero,
+				// the format of the quantity will be updated to the format of y.
+				totalReqs[name].Add(quantity)
+			}
+		}
+	}
+
+	return totalReqs
+}
+
+// IsBasicResource checks if resource is basic native.
+func IsBasicResource(name v1.ResourceName) bool {
+	switch name {
+	case v1.ResourceCPU, v1.ResourceMemory, v1.ResourcePods:
+		return true
+	default:
+		return false
 	}
-
-	klog.V(2).InfoS("Pod fits on node", "pod", klog.KObj(pod), "node", klog.KObj(node))
-	return true
 }

pkg/descheduler/node/node_test.go

@@ -21,9 +21,12 @@ import (
 	"testing"
 
 	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	"sigs.k8s.io/descheduler/test"
 )
 
@@ -147,13 +150,13 @@ func TestPodFitsCurrentNode(t *testing.T) {
 					},
 				},
 			},
-			node: &v1.Node{
-				ObjectMeta: metav1.ObjectMeta{
-					Labels: map[string]string{
-						nodeLabelKey: nodeLabelValue,
-					},
-				},
-			},
+			node: test.BuildTestNode("node1", 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+				node.ObjectMeta.Labels = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+
+				node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+			}),
 			success: true,
 		},
 		{
@@ -181,27 +184,48 @@ func TestPodFitsCurrentNode(t *testing.T) {
 					},
 				},
 			},
-			node: &v1.Node{
-				ObjectMeta: metav1.ObjectMeta{
-					Labels: map[string]string{
-						nodeLabelKey: "no",
-					},
-				},
-			},
+			node: test.BuildTestNode("node1", 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+				node.ObjectMeta.Labels = map[string]string{
+					nodeLabelKey: "no",
+				}
+
+				node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+			}),
 			success: false,
 		},
 	}
 
 	for _, tc := range tests {
-		actual := PodFitsCurrentNode(tc.pod, tc.node)
-		if actual != tc.success {
-			t.Errorf("Test %#v failed", tc.description)
-		}
+		t.Run(tc.description, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			var objs []runtime.Object
+			objs = append(objs, tc.node)
+			objs = append(objs, tc.pod)
+
+			fakeClient := fake.NewSimpleClientset(objs...)
+
+			sharedInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
+			podInformer := sharedInformerFactory.Core().V1().Pods()
+
+			getPodsAssignedToNode, err := podutil.BuildGetPodsAssignedToNodeFunc(podInformer)
+			if err != nil {
+				t.Errorf("Build get pods assigned to node function error: %v", err)
+			}
+
+			sharedInformerFactory.Start(ctx.Done())
+			sharedInformerFactory.WaitForCacheSync(ctx.Done())
+
+			actual := PodFitsCurrentNode(getPodsAssignedToNode, tc.pod, tc.node)
+			if actual != tc.success {
+				t.Errorf("Test %#v failed", tc.description)
+			}
+		})
 	}
 }
 
 func TestPodFitsAnyOtherNode(t *testing.T) {
-
 	nodeLabelKey := "kubernetes.io/desiredNode"
 	nodeLabelValue := "yes"
 	nodeTaintKey := "hardware"
@@ -215,238 +239,527 @@ func TestPodFitsAnyOtherNode(t *testing.T) {
 		pod         *v1.Pod
 		nodes       []*v1.Node
 		success     bool
+		podsOnNodes []*v1.Pod
 	}{
 		{
 			description: "Pod fits another node matching node affinity",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			pod: test.BuildTestPod("p1", 0, 0, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
-						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
-						Labels: map[string]string{
-							nodeLabelKey: "no",
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: "no",
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
 			},
-			success: true,
+			podsOnNodes: []*v1.Pod{},
+			success:     true,
 		},
 		{
 			description: "Pod expected to fit one of the nodes",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			pod: test.BuildTestPod("p1", 0, 0, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
-						Labels: map[string]string{
-							nodeLabelKey: "no",
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
-						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: "no",
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
 			},
-			success: true,
+			podsOnNodes: []*v1.Pod{},
+			success:     true,
 		},
 		{
 			description: "Pod expected to fit none of the nodes",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			pod: test.BuildTestPod("p1", 0, 0, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
-						Labels: map[string]string{
-							nodeLabelKey: "unfit1",
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
-						Labels: map[string]string{
-							nodeLabelKey: "unfit2",
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: "unfit1",
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: "unfit2",
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
 			},
-			success: false,
+			podsOnNodes: []*v1.Pod{},
+			success:     false,
 		},
 		{
 			description: "Nodes are unschedulable but labels match, should fail",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			pod: test.BuildTestPod("p1", 0, 0, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
-						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
-						},
-					},
-					Spec: v1.NodeSpec{
-						Unschedulable: true,
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
-						Labels: map[string]string{
-							nodeLabelKey: "no",
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Unschedulable = true
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: "no",
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
 			},
-			success: false,
+			podsOnNodes: []*v1.Pod{},
+			success:     false,
 		},
 		{
-			description: "Two nodes matches node selector, one of them is tained, should pass",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			description: "Both nodes are tained, should fail",
+			pod: test.BuildTestPod("p1", 2000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{},
+			success:     false,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, there is a pod on the available node, and requests are low, should pass",
+			pod: test.BuildTestPod("p1", 2000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				test.BuildTestNode(nodeNames[1], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("test-pod", 12*1000, 20*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
 						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
+							"test": "true",
 						},
-					},
-					Spec: v1.NodeSpec{
-						Taints: []v1.Taint{
-							{
-								Key:    nodeTaintKey,
-								Value:  nodeTaintValue,
-								Effect: v1.TaintEffectNoSchedule,
-							},
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
-						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
-						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(40*1000*1000*1000, resource.DecimalSI)
+				}),
 			},
 			success: true,
 		},
 		{
-			description: "Both nodes are tained, should fail",
-			pod:         createPodManifest(nodeNames[2], nodeLabelKey, nodeLabelValue),
+			description: "Two nodes matches node selector, one of them is tained, but CPU requests are too big, should fail",
+			pod: test.BuildTestPod("p1", 2000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
 			nodes: []*v1.Node{
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[0],
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				// Notice that this node only has 4 cores, the pod already on the node below requests 3 cores, and the pod above requests 2 cores
+				test.BuildTestNode(nodeNames[1], 4000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(200*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("3-core-pod", 3000, 4*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
 						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
+							"test": "true",
 						},
-					},
-					Spec: v1.NodeSpec{
-						Taints: []v1.Taint{
-							{
-								Key:    nodeTaintKey,
-								Value:  nodeTaintValue,
-								Effect: v1.TaintEffectNoSchedule,
-							},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+				}),
+			},
+			success: false,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, but memory requests are too big, should fail",
+			pod: test.BuildTestPod("p1", 2000, 5*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
 						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[1],
+					}
+				}),
+				// Notice that this node only has 8GB of memory, the pod already on the node below requests 4GB, and the pod above requests 5GB
+				test.BuildTestNode(nodeNames[1], 10*1000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(200*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("4GB-mem-pod", 2000, 4*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
 						Labels: map[string]string{
-							nodeLabelKey: nodeLabelValue,
+							"test": "true",
 						},
-					},
-					Spec: v1.NodeSpec{
-						Taints: []v1.Taint{
-							{
-								Key:    nodeTaintKey,
-								Value:  nodeTaintValue,
-								Effect: v1.TaintEffectNoExecute,
-							},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+				}),
+			},
+			success: false,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, but ephemeral storage requests are too big, should fail",
+			pod: test.BuildTestPod("p1", 2000, 4*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
 						},
-					},
-				},
-				{
-					ObjectMeta: metav1.ObjectMeta{
-						Name: nodeNames[2],
-					},
-				},
+					}
+				}),
+				// Notice that this node only has 20GB of storage, the pod already on the node below requests 11GB, and the pod above requests 10GB
+				test.BuildTestNode(nodeNames[1], 10*1000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(20*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("11GB-storage-pod", 2000, 4*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
+						Labels: map[string]string{
+							"test": "true",
+						},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(11*1000*1000*1000, resource.DecimalSI)
+				}),
+			},
+			success: false,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, but custom resource requests are too big, should fail",
+			pod: test.BuildTestPod("p1", 2000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+				pod.Spec.Containers[0].Resources.Requests["example.com/custom-resource"] = *resource.NewQuantity(10, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+					node.Status.Allocatable["example.com/custom-resource"] = *resource.NewQuantity(15, resource.DecimalSI)
+				}),
+				// Notice that this node only has 15 of the custom resource, the pod already on the node below requests 10, and the pod above requests 10
+				test.BuildTestNode(nodeNames[1], 10*1000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(200*1000*1000*1000, resource.DecimalSI)
+					node.Status.Allocatable["example.com/custom-resource"] = *resource.NewQuantity(15, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("10-custom-resource-pod", 0, 0, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
+						Labels: map[string]string{
+							"test": "true",
+						},
+					}
+					pod.Spec.Containers[0].Resources.Requests["example.com/custom-resource"] = *resource.NewQuantity(10, resource.DecimalSI)
+				}),
+			},
+			success: false,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, CPU requests will fit, and pod Overhead is low enough, should pass",
+			pod: test.BuildTestPod("p1", 1000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				// Notice that this node has 5 CPU cores, the pod below requests 2 cores, and has CPU overhead of 1 cores, and the pod above requests 1 core
+				test.BuildTestNode(nodeNames[1], 5000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(200*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("3-core-pod", 2000, 4*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
+						Labels: map[string]string{
+							"test": "true",
+						},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+					pod.Spec.Overhead = createResourceList(1000, 1000*1000*1000, 1000*1000*1000)
+				}),
+			},
+			success: true,
+		},
+		{
+			description: "Two nodes matches node selector, one of them is tained, CPU requests will fit, but pod Overhead is too high, should fail",
+			pod: test.BuildTestPod("p1", 2000, 2*1000*1000*1000, nodeNames[2], func(pod *v1.Pod) {
+				pod.Spec.NodeSelector = map[string]string{
+					nodeLabelKey: nodeLabelValue,
+				}
+				pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+			}),
+			nodes: []*v1.Node{
+				test.BuildTestNode(nodeNames[0], 64000, 128*1000*1000*1000, 200, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(1000*1000*1000*1000, resource.DecimalSI)
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				// Notice that this node only has 5 CPU cores, the pod below requests 2 cores, but has CPU overhead of 2 cores, and the pod above requests 2 cores
+				test.BuildTestNode(nodeNames[1], 5000, 8*1000*1000*1000, 12, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+
+					node.Status.Allocatable[v1.ResourceEphemeralStorage] = *resource.NewQuantity(200*1000*1000*1000, resource.DecimalSI)
+				}),
+				test.BuildTestNode(nodeNames[2], 0, 0, 0, nil),
+			},
+			podsOnNodes: []*v1.Pod{
+				test.BuildTestPod("3-core-pod", 2000, 4*1000*1000*1000, nodeNames[1], func(pod *v1.Pod) {
+					pod.ObjectMeta = metav1.ObjectMeta{
+						Namespace: "test",
+						Labels: map[string]string{
+							"test": "true",
+						},
+					}
+					pod.Spec.Containers[0].Resources.Requests[v1.ResourceEphemeralStorage] = *resource.NewQuantity(10*1000*1000*1000, resource.DecimalSI)
+					pod.Spec.Overhead = createResourceList(2000, 1000*1000*1000, 1000*1000*1000)
+				}),
 			},
 			success: false,
 		},
 	}
 
 	for _, tc := range tests {
-		actual := PodFitsAnyOtherNode(tc.pod, tc.nodes)
-		if actual != tc.success {
-			t.Errorf("Test %#v failed", tc.description)
-		}
+		t.Run(tc.description, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			var objs []runtime.Object
+			for _, node := range tc.nodes {
+				objs = append(objs, node)
+			}
+			for _, pod := range tc.podsOnNodes {
+				objs = append(objs, pod)
+			}
+			objs = append(objs, tc.pod)
+
+			fakeClient := fake.NewSimpleClientset(objs...)
+
+			sharedInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
+			podInformer := sharedInformerFactory.Core().V1().Pods()
+
+			getPodsAssignedToNode, err := podutil.BuildGetPodsAssignedToNodeFunc(podInformer)
+			if err != nil {
+				t.Errorf("Build get pods assigned to node function error: %v", err)
+			}
+
+			sharedInformerFactory.Start(ctx.Done())
+			sharedInformerFactory.WaitForCacheSync(ctx.Done())
+
+			actual := PodFitsAnyOtherNode(getPodsAssignedToNode, tc.pod, tc.nodes)
+			if actual != tc.success {
+				t.Errorf("Test %#v failed", tc.description)
+			}
+		})
 	}
 }
 
-func createPodManifest(nodeName string, nodeSelectorKey string, nodeSelectorValue string) *v1.Pod {
-	return (&v1.Pod{
-		Spec: v1.PodSpec{
-			NodeName: nodeName,
-			Affinity: &v1.Affinity{
-				NodeAffinity: &v1.NodeAffinity{
-					RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
-						NodeSelectorTerms: []v1.NodeSelectorTerm{
-							{
-								MatchExpressions: []v1.NodeSelectorRequirement{
-									{
-										Key:      nodeSelectorKey,
-										Operator: "In",
-										Values: []string{
-											nodeSelectorValue,
-										},
-									},
-								},
-							},
-						},
-					},
-				},
-			},
-		},
-	})
+// createResourceList builds a small resource list of core resources
+func createResourceList(cpu int64, memory int64, ephemeralStorage int64) v1.ResourceList {
+	resourceList := make(map[v1.ResourceName]resource.Quantity)
+	resourceList[v1.ResourceCPU] = *resource.NewMilliQuantity(cpu, resource.DecimalSI)
+	resourceList[v1.ResourceMemory] = *resource.NewQuantity(memory, resource.DecimalSI)
+	resourceList[v1.ResourceEphemeralStorage] = *resource.NewQuantity(ephemeralStorage, resource.DecimalSI)
+	return resourceList
 }

pkg/descheduler/pod/pods.go

@@ -228,3 +228,10 @@ func SortPodsBasedOnPriorityLowToHigh(pods []*v1.Pod) {
 		return *pods[i].Spec.Priority < *pods[j].Spec.Priority
 	})
 }
+
+// SortPodsBasedOnAge sorts Pods from oldest to most recent in place
+func SortPodsBasedOnAge(pods []*v1.Pod) {
+	sort.Slice(pods, func(i, j int) bool {
+		return pods[i].CreationTimestamp.Before(&pods[j].CreationTimestamp)
+	})
+}

pkg/descheduler/pod/pods_test.go

@@ -18,8 +18,10 @@ package pod
 
 import (
 	"context"
+	"fmt"
 	"reflect"
 	"testing"
+	"time"
 
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -154,3 +156,23 @@ func TestSortPodsBasedOnPriorityLowToHigh(t *testing.T) {
 		t.Errorf("Expected last pod in sorted list to be %v which of highest priority and guaranteed but got %v", p4, podList[len(podList)-1])
 	}
 }
+
+func TestSortPodsBasedOnAge(t *testing.T) {
+	podList := make([]*v1.Pod, 9)
+	n1 := test.BuildTestNode("n1", 4000, 3000, int64(len(podList)), nil)
+
+	for i := 0; i < len(podList); i++ {
+		podList[i] = test.BuildTestPod(fmt.Sprintf("p%d", i), 1, 32, n1.Name, func(pod *v1.Pod) {
+			creationTimestamp := metav1.Now().Add(time.Minute * time.Duration(-i))
+			pod.ObjectMeta.SetCreationTimestamp(metav1.NewTime(creationTimestamp))
+		})
+	}
+
+	SortPodsBasedOnAge(podList)
+
+	for i := 0; i < len(podList)-1; i++ {
+		if podList[i+1].CreationTimestamp.Before(&podList[i].CreationTimestamp) {
+			t.Errorf("Expected pods to be sorted by age but pod at index %d was older than %d", i+1, i)
+		}
+	}
+}

pkg/descheduler/strategies/failedpods.go

@@ -1,179 +0,0 @@
-package strategies
-
-import (
-	"context"
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	utilerrors "k8s.io/apimachinery/pkg/util/errors"
-	"k8s.io/apimachinery/pkg/util/sets"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/descheduler/strategies/validation"
-)
-
-// validatedFailedPodsStrategyParams contains validated strategy parameters
-type validatedFailedPodsStrategyParams struct {
-	validation.ValidatedStrategyParams
-	includingInitContainers bool
-	reasons                 sets.String
-	excludeOwnerKinds       sets.String
-	minPodLifetimeSeconds   *uint
-}
-
-// RemoveFailedPods removes Pods that are in failed status phase.
-func RemoveFailedPods(
-	ctx context.Context,
-	client clientset.Interface,
-	strategy api.DeschedulerStrategy,
-	nodes []*v1.Node,
-	podEvictor *evictions.PodEvictor,
-	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
-) {
-	strategyParams, err := validateAndParseRemoveFailedPodsParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Invalid RemoveFailedPods parameters")
-		return
-	}
-
-	evictable := podEvictor.Evictable(
-		evictions.WithPriorityThreshold(strategyParams.ThresholdPriority),
-		evictions.WithNodeFit(strategyParams.NodeFit),
-		evictions.WithLabelSelector(strategyParams.LabelSelector),
-	)
-
-	var labelSelector *metav1.LabelSelector
-	if strategy.Params != nil {
-		labelSelector = strategy.Params.LabelSelector
-	}
-
-	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
-		WithNamespaces(strategyParams.IncludedNamespaces).
-		WithoutNamespaces(strategyParams.ExcludedNamespaces).
-		WithLabelSelector(labelSelector).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-	// Only list failed pods
-	phaseFilter := func(pod *v1.Pod) bool { return pod.Status.Phase == v1.PodFailed }
-	podFilter = podutil.WrapFilterFuncs(phaseFilter, podFilter)
-
-	for _, node := range nodes {
-		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-		pods, err := podutil.ListAllPodsOnANode(node.Name, getPodsAssignedToNode, podFilter)
-		if err != nil {
-			klog.ErrorS(err, "Error listing a nodes failed pods", "node", klog.KObj(node))
-			continue
-		}
-
-		for i, pod := range pods {
-			if err = validateFailedPodShouldEvict(pod, *strategyParams); err != nil {
-				klog.V(4).InfoS(fmt.Sprintf("ignoring pod for eviction due to: %s", err.Error()), "pod", klog.KObj(pod))
-				continue
-			}
-
-			if _, err = podEvictor.EvictPod(ctx, pods[i], node, "FailedPod"); err != nil {
-				klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod))
-				break
-			}
-		}
-	}
-}
-
-func validateAndParseRemoveFailedPodsParams(
-	ctx context.Context,
-	client clientset.Interface,
-	params *api.StrategyParameters,
-) (*validatedFailedPodsStrategyParams, error) {
-	if params == nil {
-		return &validatedFailedPodsStrategyParams{
-			ValidatedStrategyParams: validation.DefaultValidatedStrategyParams(),
-		}, nil
-	}
-
-	strategyParams, err := validation.ValidateAndParseStrategyParams(ctx, client, params)
-	if err != nil {
-		return nil, err
-	}
-
-	var reasons, excludeOwnerKinds sets.String
-	var includingInitContainers bool
-	var minPodLifetimeSeconds *uint
-	if params.FailedPods != nil {
-		reasons = sets.NewString(params.FailedPods.Reasons...)
-		includingInitContainers = params.FailedPods.IncludingInitContainers
-		excludeOwnerKinds = sets.NewString(params.FailedPods.ExcludeOwnerKinds...)
-		minPodLifetimeSeconds = params.FailedPods.MinPodLifetimeSeconds
-	}
-
-	return &validatedFailedPodsStrategyParams{
-		ValidatedStrategyParams: *strategyParams,
-		includingInitContainers: includingInitContainers,
-		reasons:                 reasons,
-		excludeOwnerKinds:       excludeOwnerKinds,
-		minPodLifetimeSeconds:   minPodLifetimeSeconds,
-	}, nil
-}
-
-// validateFailedPodShouldEvict looks at strategy params settings to see if the Pod
-// should be evicted given the params in the PodFailed policy.
-func validateFailedPodShouldEvict(pod *v1.Pod, strategyParams validatedFailedPodsStrategyParams) error {
-	var errs []error
-
-	if strategyParams.minPodLifetimeSeconds != nil {
-		podAgeSeconds := uint(metav1.Now().Sub(pod.GetCreationTimestamp().Local()).Seconds())
-		if podAgeSeconds < *strategyParams.minPodLifetimeSeconds {
-			errs = append(errs, fmt.Errorf("pod does not exceed the min age seconds of %d", *strategyParams.minPodLifetimeSeconds))
-		}
-	}
-
-	if len(strategyParams.excludeOwnerKinds) > 0 {
-		ownerRefList := podutil.OwnerRef(pod)
-		for _, owner := range ownerRefList {
-			if strategyParams.excludeOwnerKinds.Has(owner.Kind) {
-				errs = append(errs, fmt.Errorf("pod's owner kind of %s is excluded", owner.Kind))
-			}
-		}
-	}
-
-	if len(strategyParams.reasons) > 0 {
-		reasons := getFailedContainerStatusReasons(pod.Status.ContainerStatuses)
-
-		if pod.Status.Phase == v1.PodFailed && pod.Status.Reason != "" {
-			reasons = append(reasons, pod.Status.Reason)
-		}
-
-		if strategyParams.includingInitContainers {
-			reasons = append(reasons, getFailedContainerStatusReasons(pod.Status.InitContainerStatuses)...)
-		}
-
-		if !strategyParams.reasons.HasAny(reasons...) {
-			errs = append(errs, fmt.Errorf("pod does not match any of the reasons"))
-		}
-	}
-
-	return utilerrors.NewAggregate(errs)
-}
-
-func getFailedContainerStatusReasons(containerStatuses []v1.ContainerStatus) []string {
-	reasons := make([]string, 0)
-
-	for _, containerStatus := range containerStatuses {
-		if containerStatus.State.Waiting != nil && containerStatus.State.Waiting.Reason != "" {
-			reasons = append(reasons, containerStatus.State.Waiting.Reason)
-		}
-		if containerStatus.State.Terminated != nil && containerStatus.State.Terminated.Reason != "" {
-			reasons = append(reasons, containerStatus.State.Terminated.Reason)
-		}
-	}
-
-	return reasons
-}

pkg/descheduler/strategies/node_affinity.go

@@ -1,120 +0,0 @@
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package strategies
-
-import (
-	"context"
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/util/sets"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
-)
-
-func validatePodsViolatingNodeAffinityParams(params *api.StrategyParameters) error {
-	if params == nil || len(params.NodeAffinityType) == 0 {
-		return fmt.Errorf("NodeAffinityType is empty")
-	}
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
-
-	return nil
-}
-
-// RemovePodsViolatingNodeAffinity evicts pods on nodes which violate node affinity
-func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validatePodsViolatingNodeAffinityParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid RemovePodsViolatingNodeAffinity parameters")
-		return
-	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	var includedNamespaces, excludedNamespaces sets.String
-	if strategy.Params.Namespaces != nil {
-		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
-	podFilter, err := podutil.NewOptions().
-		WithNamespaces(includedNamespaces).
-		WithoutNamespaces(excludedNamespaces).
-		WithLabelSelector(strategy.Params.LabelSelector).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-
-	for _, nodeAffinity := range strategy.Params.NodeAffinityType {
-		klog.V(2).InfoS("Executing for nodeAffinityType", "nodeAffinity", nodeAffinity)
-
-		switch nodeAffinity {
-		case "requiredDuringSchedulingIgnoredDuringExecution":
-			for _, node := range nodes {
-				klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-
-				pods, err := podutil.ListPodsOnANode(
-					node.Name,
-					getPodsAssignedToNode,
-					podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
-						return evictable.IsEvictable(pod) &&
-							!nodeutil.PodFitsCurrentNode(pod, node) &&
-							nodeutil.PodFitsAnyNode(pod, nodes)
-					}),
-				)
-				if err != nil {
-					klog.ErrorS(err, "Failed to get pods", "node", klog.KObj(node))
-				}
-
-				for _, pod := range pods {
-					if pod.Spec.Affinity != nil && pod.Spec.Affinity.NodeAffinity != nil && pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution != nil {
-						klog.V(1).InfoS("Evicting pod", "pod", klog.KObj(pod))
-						if _, err := podEvictor.EvictPod(ctx, pod, node, "NodeAffinity"); err != nil {
-							klog.ErrorS(err, "Error evicting pod")
-							break
-						}
-					}
-				}
-			}
-		default:
-			klog.ErrorS(nil, "Invalid nodeAffinityType", "nodeAffinity", nodeAffinity)
-		}
-	}
-}

pkg/descheduler/strategies/node_taint.go

@@ -1,114 +0,0 @@
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package strategies
-
-import (
-	"context"
-	"fmt"
-
-	"k8s.io/apimachinery/pkg/util/sets"
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
-
-	v1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-)
-
-func validateRemovePodsViolatingNodeTaintsParams(params *api.StrategyParameters) error {
-	if params == nil {
-		return nil
-	}
-
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
-
-	return nil
-}
-
-// RemovePodsViolatingNodeTaints evicts pods on the node which violate NoSchedule Taints on nodes
-func RemovePodsViolatingNodeTaints(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validateRemovePodsViolatingNodeTaintsParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid RemovePodsViolatingNodeTaints parameters")
-		return
-	}
-
-	var includedNamespaces, excludedNamespaces sets.String
-	var labelSelector *metav1.LabelSelector
-	if strategy.Params != nil {
-		if strategy.Params.Namespaces != nil {
-			includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-			excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
-		}
-		labelSelector = strategy.Params.LabelSelector
-	}
-
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
-	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
-		WithNamespaces(includedNamespaces).
-		WithoutNamespaces(excludedNamespaces).
-		WithLabelSelector(labelSelector).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-
-	for _, node := range nodes {
-		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-		pods, err := podutil.ListAllPodsOnANode(node.Name, getPodsAssignedToNode, podFilter)
-		if err != nil {
-			//no pods evicted as error encountered retrieving evictable Pods
-			return
-		}
-		totalPods := len(pods)
-		for i := 0; i < totalPods; i++ {
-			if !utils.TolerationsTolerateTaintsWithFilter(
-				pods[i].Spec.Tolerations,
-				node.Spec.Taints,
-				func(taint *v1.Taint) bool { return taint.Effect == v1.TaintEffectNoSchedule },
-			) {
-				klog.V(2).InfoS("Not all taints with NoSchedule effect are tolerated after update for pod on node", "pod", klog.KObj(pods[i]), "node", klog.KObj(node))
-				if _, err := podEvictor.EvictPod(ctx, pods[i], node, "NodeTaint"); err != nil {
-					klog.ErrorS(err, "Error evicting pod")
-					break
-				}
-			}
-		}
-	}
-}

pkg/descheduler/strategies/nodeutilization/lownodeutilization.go

@@ -1,189 +0,0 @@
-/*
-Copyright 2017 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package nodeutilization
-
-import (
-	"context"
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/api/resource"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
-)
-
-// LowNodeUtilization evicts pods from overutilized nodes to underutilized nodes. Note that CPU/Memory requests are used
-// to calculate nodes' utilization and not the actual resource usage.
-func LowNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	// TODO: May be create a struct for the strategy as well, so that we don't have to pass along the all the params?
-	if err := validateNodeUtilizationParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid LowNodeUtilization parameters")
-		return
-	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	thresholds := strategy.Params.NodeResourceUtilizationThresholds.Thresholds
-	targetThresholds := strategy.Params.NodeResourceUtilizationThresholds.TargetThresholds
-	if err := validateLowUtilizationStrategyConfig(thresholds, targetThresholds); err != nil {
-		klog.ErrorS(err, "LowNodeUtilization config is not valid")
-		return
-	}
-	// check if Pods/CPU/Mem are set, if not, set them to 100
-	if _, ok := thresholds[v1.ResourcePods]; !ok {
-		thresholds[v1.ResourcePods] = MaxResourcePercentage
-		targetThresholds[v1.ResourcePods] = MaxResourcePercentage
-	}
-	if _, ok := thresholds[v1.ResourceCPU]; !ok {
-		thresholds[v1.ResourceCPU] = MaxResourcePercentage
-		targetThresholds[v1.ResourceCPU] = MaxResourcePercentage
-	}
-	if _, ok := thresholds[v1.ResourceMemory]; !ok {
-		thresholds[v1.ResourceMemory] = MaxResourcePercentage
-		targetThresholds[v1.ResourceMemory] = MaxResourcePercentage
-	}
-	resourceNames := getResourceNames(thresholds)
-
-	lowNodes, sourceNodes := classifyNodes(
-		getNodeUsage(nodes, thresholds, targetThresholds, resourceNames, getPodsAssignedToNode),
-		// The node has to be schedulable (to be able to move workload there)
-		func(node *v1.Node, usage NodeUsage) bool {
-			if nodeutil.IsNodeUnschedulable(node) {
-				klog.V(2).InfoS("Node is unschedulable, thus not considered as underutilized", "node", klog.KObj(node))
-				return false
-			}
-			return isNodeWithLowUtilization(usage)
-		},
-		func(node *v1.Node, usage NodeUsage) bool {
-			return isNodeAboveTargetUtilization(usage)
-		},
-	)
-
-	// log message in one line
-	keysAndValues := []interface{}{
-		"CPU", thresholds[v1.ResourceCPU],
-		"Mem", thresholds[v1.ResourceMemory],
-		"Pods", thresholds[v1.ResourcePods],
-	}
-	for name := range thresholds {
-		if !isBasicResource(name) {
-			keysAndValues = append(keysAndValues, string(name), int64(thresholds[name]))
-		}
-	}
-	klog.V(1).InfoS("Criteria for a node under utilization", keysAndValues...)
-	klog.V(1).InfoS("Number of underutilized nodes", "totalNumber", len(lowNodes))
-
-	// log message in one line
-	keysAndValues = []interface{}{
-		"CPU", targetThresholds[v1.ResourceCPU],
-		"Mem", targetThresholds[v1.ResourceMemory],
-		"Pods", targetThresholds[v1.ResourcePods],
-	}
-	for name := range targetThresholds {
-		if !isBasicResource(name) {
-			keysAndValues = append(keysAndValues, string(name), int64(targetThresholds[name]))
-		}
-	}
-	klog.V(1).InfoS("Criteria for a node above target utilization", keysAndValues...)
-	klog.V(1).InfoS("Number of overutilized nodes", "totalNumber", len(sourceNodes))
-
-	if len(lowNodes) == 0 {
-		klog.V(1).InfoS("No node is underutilized, nothing to do here, you might tune your thresholds further")
-		return
-	}
-
-	if len(lowNodes) <= strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes {
-		klog.V(1).InfoS("Number of nodes underutilized is less or equal than NumberOfNodes, nothing to do here", "underutilizedNodes", len(lowNodes), "numberOfNodes", strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes)
-		return
-	}
-
-	if len(lowNodes) == len(nodes) {
-		klog.V(1).InfoS("All nodes are underutilized, nothing to do here")
-		return
-	}
-
-	if len(sourceNodes) == 0 {
-		klog.V(1).InfoS("All nodes are under target utilization, nothing to do here")
-		return
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
-	// stop if node utilization drops below target threshold or any of required capacity (cpu, memory, pods) is moved
-	continueEvictionCond := func(nodeUsage NodeUsage, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
-		if !isNodeAboveTargetUtilization(nodeUsage) {
-			return false
-		}
-		for name := range totalAvailableUsage {
-			if totalAvailableUsage[name].CmpInt64(0) < 1 {
-				return false
-			}
-		}
-
-		return true
-	}
-
-	evictPodsFromSourceNodes(
-		ctx,
-		sourceNodes,
-		lowNodes,
-		podEvictor,
-		evictable.IsEvictable,
-		resourceNames,
-		"LowNodeUtilization",
-		continueEvictionCond)
-
-	klog.V(1).InfoS("Total number of pods evicted", "evictedPods", podEvictor.TotalEvicted())
-}
-
-// validateLowUtilizationStrategyConfig checks if the strategy's config is valid
-func validateLowUtilizationStrategyConfig(thresholds, targetThresholds api.ResourceThresholds) error {
-	// validate thresholds and targetThresholds config
-	if err := validateThresholds(thresholds); err != nil {
-		return fmt.Errorf("thresholds config is not valid: %v", err)
-	}
-	if err := validateThresholds(targetThresholds); err != nil {
-		return fmt.Errorf("targetThresholds config is not valid: %v", err)
-	}
-
-	// validate if thresholds and targetThresholds have same resources configured
-	if len(thresholds) != len(targetThresholds) {
-		return fmt.Errorf("thresholds and targetThresholds configured different resources")
-	}
-	for resourceName, value := range thresholds {
-		if targetValue, ok := targetThresholds[resourceName]; !ok {
-			return fmt.Errorf("thresholds and targetThresholds configured different resources")
-		} else if value > targetValue {
-			return fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", resourceName)
-		}
-	}
-	return nil
-}

pkg/descheduler/strategies/nodeutilization/nodeutilization_test.go

@@ -1,158 +0,0 @@
-/*
-Copyright 2021 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package nodeutilization
-
-import (
-	"fmt"
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/api/resource"
-	"math"
-	"sigs.k8s.io/descheduler/pkg/api"
-	"testing"
-)
-
-var (
-	lowPriority      = int32(0)
-	highPriority     = int32(10000)
-	extendedResource = v1.ResourceName("example.com/foo")
-)
-
-func TestValidateThresholds(t *testing.T) {
-	tests := []struct {
-		name    string
-		input   api.ResourceThresholds
-		errInfo error
-	}{
-		{
-			name:    "passing nil map for threshold",
-			input:   nil,
-			errInfo: fmt.Errorf("no resource threshold is configured"),
-		},
-		{
-			name:    "passing no threshold",
-			input:   api.ResourceThresholds{},
-			errInfo: fmt.Errorf("no resource threshold is configured"),
-		},
-		{
-			name: "passing extended resource name other than cpu/memory/pods",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU:   40,
-				extendedResource: 50,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing invalid resource value",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU:    110,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: fmt.Errorf("%v threshold not in [%v, %v] range", v1.ResourceCPU, MinResourcePercentage, MaxResourcePercentage),
-		},
-		{
-			name: "passing a valid threshold with max and min resource value",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU:    100,
-				v1.ResourceMemory: 0,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing a valid threshold with only cpu",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU: 80,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing a valid threshold with cpu, memory and pods",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 30,
-				v1.ResourcePods:   40,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing a valid threshold with only extended resource",
-			input: api.ResourceThresholds{
-				extendedResource: 80,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing a valid threshold with cpu, memory, pods and extended resource",
-			input: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 30,
-				v1.ResourcePods:   40,
-				extendedResource:  50,
-			},
-			errInfo: nil,
-		},
-	}
-
-	for _, test := range tests {
-		validateErr := validateThresholds(test.input)
-
-		if validateErr == nil || test.errInfo == nil {
-			if validateErr != test.errInfo {
-				t.Errorf("expected validity of threshold: %#v to be %v but got %v instead", test.input, test.errInfo, validateErr)
-			}
-		} else if validateErr.Error() != test.errInfo.Error() {
-			t.Errorf("expected validity of threshold: %#v to be %v but got %v instead", test.input, test.errInfo, validateErr)
-		}
-	}
-}
-
-func TestResourceUsagePercentages(t *testing.T) {
-	resourceUsagePercentage := resourceUsagePercentages(NodeUsage{
-		node: &v1.Node{
-			Status: v1.NodeStatus{
-				Capacity: v1.ResourceList{
-					v1.ResourceCPU:    *resource.NewMilliQuantity(2000, resource.DecimalSI),
-					v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
-					v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
-				},
-				Allocatable: v1.ResourceList{
-					v1.ResourceCPU:    *resource.NewMilliQuantity(1930, resource.DecimalSI),
-					v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
-					v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
-				},
-			},
-		},
-		usage: map[v1.ResourceName]*resource.Quantity{
-			v1.ResourceCPU:    resource.NewMilliQuantity(1220, resource.DecimalSI),
-			v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
-			v1.ResourcePods:   resource.NewQuantity(11, resource.BinarySI),
-		},
-	})
-
-	expectedUsageInIntPercentage := map[v1.ResourceName]float64{
-		v1.ResourceCPU:    63,
-		v1.ResourceMemory: 90,
-		v1.ResourcePods:   37,
-	}
-
-	for resourceName, percentage := range expectedUsageInIntPercentage {
-		if math.Floor(resourceUsagePercentage[resourceName]) != percentage {
-			t.Errorf("Incorrect percentange computation, expected %v, got math.Floor(%v) instead", percentage, resourceUsagePercentage[resourceName])
-		}
-	}
-
-	t.Logf("resourceUsagePercentage: %#v\n", resourceUsagePercentage)
-}

pkg/descheduler/strategies/pod_lifetime.go

@@ -1,142 +0,0 @@
-/*
-Copyright 2020 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package strategies
-
-import (
-	"context"
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/sets"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
-)
-
-func validatePodLifeTimeParams(params *api.StrategyParameters) error {
-	if params == nil || params.PodLifeTime == nil || params.PodLifeTime.MaxPodLifeTimeSeconds == nil {
-		return fmt.Errorf("MaxPodLifeTimeSeconds not set")
-	}
-
-	if params.PodLifeTime.PodStatusPhases != nil {
-		for _, phase := range params.PodLifeTime.PodStatusPhases {
-			if phase != string(v1.PodPending) && phase != string(v1.PodRunning) {
-				return fmt.Errorf("only Pending and Running phases are supported in PodLifeTime")
-			}
-		}
-	}
-
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
-
-	return nil
-}
-
-// PodLifeTime evicts pods on nodes that were created more than strategy.Params.MaxPodLifeTimeSeconds seconds ago.
-func PodLifeTime(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validatePodLifeTimeParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid PodLifeTime parameters")
-		return
-	}
-
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	var includedNamespaces, excludedNamespaces sets.String
-	if strategy.Params.Namespaces != nil {
-		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority))
-
-	filter := evictable.IsEvictable
-	if strategy.Params.PodLifeTime.PodStatusPhases != nil {
-		filter = func(pod *v1.Pod) bool {
-			for _, phase := range strategy.Params.PodLifeTime.PodStatusPhases {
-				if string(pod.Status.Phase) == phase {
-					return evictable.IsEvictable(pod)
-				}
-			}
-			return false
-		}
-	}
-
-	podFilter, err := podutil.NewOptions().
-		WithFilter(filter).
-		WithNamespaces(includedNamespaces).
-		WithoutNamespaces(excludedNamespaces).
-		WithLabelSelector(strategy.Params.LabelSelector).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-
-	for _, node := range nodes {
-		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-
-		pods := listOldPodsOnNode(node.Name, getPodsAssignedToNode, podFilter, *strategy.Params.PodLifeTime.MaxPodLifeTimeSeconds)
-		for _, pod := range pods {
-			success, err := podEvictor.EvictPod(ctx, pod, node, "PodLifeTime")
-			if success {
-				klog.V(1).InfoS("Evicted pod because it exceeded its lifetime", "pod", klog.KObj(pod), "maxPodLifeTime", *strategy.Params.PodLifeTime.MaxPodLifeTimeSeconds)
-			}
-
-			if err != nil {
-				klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod))
-				break
-			}
-		}
-
-	}
-}
-
-func listOldPodsOnNode(
-	nodeName string,
-	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
-	filter podutil.FilterFunc,
-	maxPodLifeTimeSeconds uint,
-) []*v1.Pod {
-	pods, err := podutil.ListPodsOnANode(nodeName, getPodsAssignedToNode, filter)
-	if err != nil {
-		return nil
-	}
-
-	var oldPods []*v1.Pod
-	for _, pod := range pods {
-		podAgeSeconds := uint(metav1.Now().Sub(pod.GetCreationTimestamp().Local()).Seconds())
-		if podAgeSeconds > maxPodLifeTimeSeconds {
-			oldPods = append(oldPods, pod)
-		}
-	}
-
-	return oldPods
-}

pkg/descheduler/strategies/toomanyrestarts.go

@@ -1,127 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package strategies
-
-import (
-	"context"
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/util/sets"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
-	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
-)
-
-func validateRemovePodsHavingTooManyRestartsParams(params *api.StrategyParameters) error {
-	if params == nil || params.PodsHavingTooManyRestarts == nil || params.PodsHavingTooManyRestarts.PodRestartThreshold < 1 {
-		return fmt.Errorf("PodsHavingTooManyRestarts threshold not set")
-	}
-
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
-
-	return nil
-}
-
-// RemovePodsHavingTooManyRestarts removes the pods that have too many restarts on node.
-// There are too many cases leading this issue: Volume mount failed, app error due to nodes' different settings.
-// As of now, this strategy won't evict daemonsets, mirror pods, critical pods and pods with local storages.
-func RemovePodsHavingTooManyRestarts(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validateRemovePodsHavingTooManyRestartsParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid RemovePodsHavingTooManyRestarts parameters")
-		return
-	}
-
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	var includedNamespaces, excludedNamespaces sets.String
-	if strategy.Params.Namespaces != nil {
-		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
-	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
-		WithNamespaces(includedNamespaces).
-		WithoutNamespaces(excludedNamespaces).
-		WithLabelSelector(strategy.Params.LabelSelector).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-
-	for _, node := range nodes {
-		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-		pods, err := podutil.ListPodsOnANode(node.Name, getPodsAssignedToNode, podFilter)
-		if err != nil {
-			klog.ErrorS(err, "Error listing a nodes pods", "node", klog.KObj(node))
-			continue
-		}
-
-		for i, pod := range pods {
-			restarts, initRestarts := calcContainerRestarts(pod)
-			if strategy.Params.PodsHavingTooManyRestarts.IncludingInitContainers {
-				if restarts+initRestarts < strategy.Params.PodsHavingTooManyRestarts.PodRestartThreshold {
-					continue
-				}
-			} else if restarts < strategy.Params.PodsHavingTooManyRestarts.PodRestartThreshold {
-				continue
-			}
-			if _, err := podEvictor.EvictPod(ctx, pods[i], node, "TooManyRestarts"); err != nil {
-				klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod))
-				break
-			}
-		}
-	}
-}
-
-// calcContainerRestarts get container restarts and init container restarts.
-func calcContainerRestarts(pod *v1.Pod) (int32, int32) {
-	var restarts, initRestarts int32
-
-	for _, cs := range pod.Status.ContainerStatuses {
-		restarts += cs.RestartCount
-	}
-
-	for _, cs := range pod.Status.InitContainerStatuses {
-		initRestarts += cs.RestartCount
-	}
-
-	return restarts, initRestarts
-}

pkg/descheduler/strategy_migration.go

@@ -0,0 +1,273 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package descheduler
+
+import (
+	"context"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/klog/v2"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig/validation"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/nodeutilization"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/podlifetime"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removeduplicates"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removefailedpods"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodshavingtoomanyrestarts"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatinginterpodantiaffinity"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingnodeaffinity"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingnodetaints"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingtopologyspreadconstraint"
+)
+
+// Once all strategies are migrated the arguments get read from the configuration file
+// without any wiring. Keeping the wiring here so the descheduler can still use
+// the v1alpha1 configuration during the strategy migration to plugins.
+
+var pluginsMap = map[string]func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl){
+	"RemovePodsViolatingNodeTaints": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.RemovePodsViolatingNodeTaintsArgs{
+			Namespaces:              params.Namespaces,
+			LabelSelector:           params.LabelSelector,
+			IncludePreferNoSchedule: params.IncludePreferNoSchedule,
+			ExcludedTaints:          params.ExcludedTaints,
+		}
+		if err := validation.ValidateRemovePodsViolatingNodeTaintsArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingnodetaints.PluginName)
+			return
+		}
+		pg, err := removepodsviolatingnodetaints.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removepodsviolatingnodetaints.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removepodsviolatingnodetaints.PluginName)
+		}
+	},
+	"RemoveFailedPods": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		failedPodsParams := params.FailedPods
+		if failedPodsParams == nil {
+			failedPodsParams = &api.FailedPods{}
+		}
+		args := &componentconfig.RemoveFailedPodsArgs{
+			Namespaces:              params.Namespaces,
+			LabelSelector:           params.LabelSelector,
+			IncludingInitContainers: failedPodsParams.IncludingInitContainers,
+			MinPodLifetimeSeconds:   failedPodsParams.MinPodLifetimeSeconds,
+			ExcludeOwnerKinds:       failedPodsParams.ExcludeOwnerKinds,
+			Reasons:                 failedPodsParams.Reasons,
+		}
+		if err := validation.ValidateRemoveFailedPodsArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removefailedpods.PluginName)
+			return
+		}
+		pg, err := removefailedpods.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removefailedpods.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removefailedpods.PluginName)
+		}
+	},
+	"RemovePodsViolatingNodeAffinity": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.RemovePodsViolatingNodeAffinityArgs{
+			Namespaces:       params.Namespaces,
+			LabelSelector:    params.LabelSelector,
+			NodeAffinityType: params.NodeAffinityType,
+		}
+		if err := validation.ValidateRemovePodsViolatingNodeAffinityArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingnodeaffinity.PluginName)
+			return
+		}
+		pg, err := removepodsviolatingnodeaffinity.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removepodsviolatingnodeaffinity.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removepodsviolatingnodeaffinity.PluginName)
+		}
+	},
+	"RemovePodsViolatingInterPodAntiAffinity": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.RemovePodsViolatingInterPodAntiAffinityArgs{
+			Namespaces:    params.Namespaces,
+			LabelSelector: params.LabelSelector,
+		}
+		if err := validation.ValidateRemovePodsViolatingInterPodAntiAffinityArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatinginterpodantiaffinity.PluginName)
+			return
+		}
+		pg, err := removepodsviolatinginterpodantiaffinity.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removepodsviolatinginterpodantiaffinity.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removepodsviolatinginterpodantiaffinity.PluginName)
+		}
+	},
+	"RemovePodsHavingTooManyRestarts": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		tooManyRestartsParams := params.PodsHavingTooManyRestarts
+		if tooManyRestartsParams == nil {
+			tooManyRestartsParams = &api.PodsHavingTooManyRestarts{}
+		}
+		args := &componentconfig.RemovePodsHavingTooManyRestartsArgs{
+			Namespaces:              params.Namespaces,
+			LabelSelector:           params.LabelSelector,
+			PodRestartThreshold:     tooManyRestartsParams.PodRestartThreshold,
+			IncludingInitContainers: tooManyRestartsParams.IncludingInitContainers,
+		}
+		if err := validation.ValidateRemovePodsHavingTooManyRestartsArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodshavingtoomanyrestarts.PluginName)
+			return
+		}
+		pg, err := removepodshavingtoomanyrestarts.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removepodshavingtoomanyrestarts.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removepodshavingtoomanyrestarts.PluginName)
+		}
+	},
+	"PodLifeTime": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		podLifeTimeParams := params.PodLifeTime
+		if podLifeTimeParams == nil {
+			podLifeTimeParams = &api.PodLifeTime{}
+		}
+
+		var states []string
+		if podLifeTimeParams.PodStatusPhases != nil {
+			states = append(states, podLifeTimeParams.PodStatusPhases...)
+		}
+		if podLifeTimeParams.States != nil {
+			states = append(states, podLifeTimeParams.States...)
+		}
+
+		args := &componentconfig.PodLifeTimeArgs{
+			Namespaces:            params.Namespaces,
+			LabelSelector:         params.LabelSelector,
+			MaxPodLifeTimeSeconds: podLifeTimeParams.MaxPodLifeTimeSeconds,
+			States:                states,
+		}
+		if err := validation.ValidatePodLifeTimeArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", podlifetime.PluginName)
+			return
+		}
+		pg, err := podlifetime.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", podlifetime.PluginName)
+			return
+		}
+		status := pg.(framework.DeschedulePlugin).Deschedule(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", podlifetime.PluginName)
+		}
+	},
+	"RemoveDuplicates": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.RemoveDuplicatesArgs{
+			Namespaces: params.Namespaces,
+		}
+		if params.RemoveDuplicates != nil {
+			args.ExcludeOwnerKinds = params.RemoveDuplicates.ExcludeOwnerKinds
+		}
+		if err := validation.ValidateRemoveDuplicatesArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removeduplicates.PluginName)
+			return
+		}
+		pg, err := removeduplicates.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removeduplicates.PluginName)
+			return
+		}
+		status := pg.(framework.BalancePlugin).Balance(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removeduplicates.PluginName)
+		}
+	},
+	"RemovePodsViolatingTopologySpreadConstraint": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.RemovePodsViolatingTopologySpreadConstraintArgs{
+			Namespaces:             params.Namespaces,
+			LabelSelector:          params.LabelSelector,
+			IncludeSoftConstraints: params.IncludeSoftConstraints,
+		}
+		if err := validation.ValidateRemovePodsViolatingTopologySpreadConstraintArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingtopologyspreadconstraint.PluginName)
+			return
+		}
+		pg, err := removepodsviolatingtopologyspreadconstraint.New(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", removepodsviolatingtopologyspreadconstraint.PluginName)
+			return
+		}
+		status := pg.(framework.BalancePlugin).Balance(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", removepodsviolatingtopologyspreadconstraint.PluginName)
+		}
+	},
+	"HighNodeUtilization": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.HighNodeUtilizationArgs{
+			Thresholds:    params.NodeResourceUtilizationThresholds.Thresholds,
+			NumberOfNodes: params.NodeResourceUtilizationThresholds.NumberOfNodes,
+		}
+
+		if err := validation.ValidateHighNodeUtilizationArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", nodeutilization.HighNodeUtilizationPluginName)
+			return
+		}
+		pg, err := nodeutilization.NewHighNodeUtilization(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", nodeutilization.HighNodeUtilizationPluginName)
+			return
+		}
+		status := pg.(framework.BalancePlugin).Balance(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", nodeutilization.HighNodeUtilizationPluginName)
+		}
+	},
+	"LowNodeUtilization": func(ctx context.Context, nodes []*v1.Node, params *api.StrategyParameters, handle *handleImpl) {
+		args := &componentconfig.LowNodeUtilizationArgs{
+			Thresholds:             params.NodeResourceUtilizationThresholds.Thresholds,
+			TargetThresholds:       params.NodeResourceUtilizationThresholds.TargetThresholds,
+			UseDeviationThresholds: params.NodeResourceUtilizationThresholds.UseDeviationThresholds,
+			NumberOfNodes:          params.NodeResourceUtilizationThresholds.NumberOfNodes,
+		}
+
+		if err := validation.ValidateLowNodeUtilizationArgs(args); err != nil {
+			klog.V(1).ErrorS(err, "unable to validate plugin arguments", "pluginName", nodeutilization.LowNodeUtilizationPluginName)
+			return
+		}
+		pg, err := nodeutilization.NewLowNodeUtilization(args, handle)
+		if err != nil {
+			klog.V(1).ErrorS(err, "unable to initialize a plugin", "pluginName", nodeutilization.LowNodeUtilizationPluginName)
+			return
+		}
+		status := pg.(framework.BalancePlugin).Balance(ctx, nodes)
+		if status != nil && status.Err != nil {
+			klog.V(1).ErrorS(err, "plugin finished with error", "pluginName", nodeutilization.LowNodeUtilizationPluginName)
+		}
+	},
+}

pkg/framework/fake/fake.go

@@ -0,0 +1,45 @@
+package fake
+
+import (
+	"context"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/client-go/informers"
+	clientset "k8s.io/client-go/kubernetes"
+
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+)
+
+type HandleImpl struct {
+	ClientsetImpl                 clientset.Interface
+	GetPodsAssignedToNodeFuncImpl podutil.GetPodsAssignedToNodeFunc
+	SharedInformerFactoryImpl     informers.SharedInformerFactory
+	EvictorFilterImpl             framework.EvictorPlugin
+	PodEvictorImpl                *evictions.PodEvictor
+}
+
+var _ framework.Handle = &HandleImpl{}
+
+func (hi *HandleImpl) ClientSet() clientset.Interface {
+	return hi.ClientsetImpl
+}
+func (hi *HandleImpl) GetPodsAssignedToNodeFunc() podutil.GetPodsAssignedToNodeFunc {
+	return hi.GetPodsAssignedToNodeFuncImpl
+}
+func (hi *HandleImpl) SharedInformerFactory() informers.SharedInformerFactory {
+	return hi.SharedInformerFactoryImpl
+}
+func (hi *HandleImpl) Evictor() framework.Evictor {
+	return hi
+}
+func (hi *HandleImpl) Filter(pod *v1.Pod) bool {
+	return hi.EvictorFilterImpl.Filter(pod)
+}
+func (hi *HandleImpl) Evict(ctx context.Context, pod *v1.Pod, opts evictions.EvictOptions) bool {
+	return hi.PodEvictorImpl.EvictPod(ctx, pod, opts)
+}
+func (hi *HandleImpl) NodeLimitExceeded(node *v1.Node) bool {
+	return hi.PodEvictorImpl.NodeLimitExceeded(node)
+}

pkg/framework/plugins/defaultevictor/defaultevictor.go

@@ -0,0 +1,193 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package defaultevictor
+
+import (
+	// "context"
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/errors"
+	"k8s.io/klog/v2"
+	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	"sigs.k8s.io/descheduler/pkg/utils"
+)
+
+const (
+	PluginName            = "DefaultEvictor"
+	evictPodAnnotationKey = "descheduler.alpha.kubernetes.io/evict"
+)
+
+var _ framework.EvictorPlugin = &DefaultEvictor{}
+
+type constraint func(pod *v1.Pod) error
+
+// DefaultEvictor is the first EvictorPlugin, which defines the default extension points of the
+// pre-baked evictor that is shipped.
+// Even though we name this plugin DefaultEvictor, it does not actually evict anything,
+// This plugin is only meant to customize other actions (extension points) of the evictor,
+// like filtering, sorting, and other ones that might be relevant in the future
+type DefaultEvictor struct {
+	constraints []constraint
+}
+
+// IsPodEvictableBasedOnPriority checks if the given pod is evictable based on priority resolved from pod Spec.
+func IsPodEvictableBasedOnPriority(pod *v1.Pod, priority int32) bool {
+	return pod.Spec.Priority == nil || *pod.Spec.Priority < priority
+}
+
+// HaveEvictAnnotation checks if the pod have evict annotation
+func HaveEvictAnnotation(pod *v1.Pod) bool {
+	_, found := pod.ObjectMeta.Annotations[evictPodAnnotationKey]
+	return found
+}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	defaultEvictorArgs, ok := args.(*DefaultEvictorArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type defaultEvictorFilterArgs, got %T", args)
+	}
+
+	ev := &DefaultEvictor{}
+
+	if defaultEvictorArgs.EvictFailedBarePods {
+		klog.V(1).InfoS("Warning: EvictFailedBarePods is set to True. This could cause eviction of pods without ownerReferences.")
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			ownerRefList := podutil.OwnerRef(pod)
+			// Enable evictFailedBarePods to evict bare pods in failed phase
+			if len(ownerRefList) == 0 && pod.Status.Phase != v1.PodFailed {
+				return fmt.Errorf("pod does not have any ownerRefs and is not in failed phase")
+			}
+			return nil
+		})
+	} else {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			ownerRefList := podutil.OwnerRef(pod)
+			if len(ownerRefList) == 0 {
+				return fmt.Errorf("pod does not have any ownerRefs")
+			}
+			return nil
+		})
+	}
+	if !defaultEvictorArgs.EvictSystemCriticalPods {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			if utils.IsCriticalPriorityPod(pod) {
+				return fmt.Errorf("pod has system critical priority")
+			}
+			return nil
+		})
+
+		if defaultEvictorArgs.PriorityThreshold != nil && (defaultEvictorArgs.PriorityThreshold.Value != nil || len(defaultEvictorArgs.PriorityThreshold.Name) > 0) {
+			thresholdPriority, err := utils.GetPriorityValueFromPriorityThreshold(context.TODO(), handle.ClientSet(), defaultEvictorArgs.PriorityThreshold)
+			if err != nil {
+				return nil, fmt.Errorf("failed to get priority threshold: %v", err)
+			}
+			ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+				if IsPodEvictableBasedOnPriority(pod, thresholdPriority) {
+					return nil
+				}
+				return fmt.Errorf("pod has higher priority than specified priority class threshold")
+			})
+		}
+	} else {
+		klog.V(1).InfoS("Warning: EvictSystemCriticalPods is set to True. This could cause eviction of Kubernetes system pods.")
+	}
+	if !defaultEvictorArgs.EvictLocalStoragePods {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			if utils.IsPodWithLocalStorage(pod) {
+				return fmt.Errorf("pod has local storage and descheduler is not configured with evictLocalStoragePods")
+			}
+			return nil
+		})
+	}
+	if defaultEvictorArgs.IgnorePvcPods {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			if utils.IsPodWithPVC(pod) {
+				return fmt.Errorf("pod has a PVC and descheduler is configured to ignore PVC pods")
+			}
+			return nil
+		})
+	}
+	if defaultEvictorArgs.NodeFit {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			nodes, err := nodeutil.ReadyNodes(context.TODO(), handle.ClientSet(), handle.SharedInformerFactory().Core().V1().Nodes(), defaultEvictorArgs.NodeSelector)
+			if err != nil {
+				return fmt.Errorf("could not list nodes when processing NodeFit")
+			}
+			if !nodeutil.PodFitsAnyOtherNode(handle.GetPodsAssignedToNodeFunc(), pod, nodes) {
+				return fmt.Errorf("pod does not fit on any other node because of nodeSelector(s), Taint(s), or nodes marked as unschedulable")
+			}
+			return nil
+		})
+	}
+	if defaultEvictorArgs.LabelSelector != nil && !defaultEvictorArgs.LabelSelector.Empty() {
+		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
+			if !defaultEvictorArgs.LabelSelector.Matches(labels.Set(pod.Labels)) {
+				return fmt.Errorf("pod labels do not match the labelSelector filter in the policy parameter")
+			}
+			return nil
+		})
+	}
+
+	return ev, nil
+}
+
+// Name retrieves the plugin name
+func (d *DefaultEvictor) Name() string {
+	return PluginName
+}
+
+func (d *DefaultEvictor) Filter(pod *v1.Pod) bool {
+	checkErrs := []error{}
+
+	if HaveEvictAnnotation(pod) {
+		return true
+	}
+
+	ownerRefList := podutil.OwnerRef(pod)
+	if utils.IsDaemonsetPod(ownerRefList) {
+		checkErrs = append(checkErrs, fmt.Errorf("pod is a DaemonSet pod"))
+	}
+
+	if utils.IsMirrorPod(pod) {
+		checkErrs = append(checkErrs, fmt.Errorf("pod is a mirror pod"))
+	}
+
+	if utils.IsStaticPod(pod) {
+		checkErrs = append(checkErrs, fmt.Errorf("pod is a static pod"))
+	}
+
+	if utils.IsPodTerminating(pod) {
+		checkErrs = append(checkErrs, fmt.Errorf("pod is terminating"))
+	}
+
+	for _, c := range d.constraints {
+		if err := c(pod); err != nil {
+			checkErrs = append(checkErrs, err)
+		}
+	}
+
+	if len(checkErrs) > 0 {
+		klog.V(4).InfoS("Pod fails the following checks", "pod", klog.KObj(pod), "checks", errors.NewAggregate(checkErrs).Error())
+		return false
+	}
+
+	return true
+}

pkg/framework/plugins/defaultevictor/defaultevictor_test.go

@@ -0,0 +1,636 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package defaultevictor
+
+import (
+	"context"
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/kubernetes/fake"
+	"sigs.k8s.io/descheduler/pkg/api"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/test"
+)
+
+func TestDefaultEvictorFilter(t *testing.T) {
+	n1 := test.BuildTestNode("node1", 1000, 2000, 13, nil)
+	lowPriority := int32(800)
+	highPriority := int32(900)
+
+	nodeTaintKey := "hardware"
+	nodeTaintValue := "gpu"
+
+	nodeLabelKey := "datacenter"
+	nodeLabelValue := "east"
+	type testCase struct {
+		description             string
+		pods                    []*v1.Pod
+		nodes                   []*v1.Node
+		evictFailedBarePods     bool
+		evictLocalStoragePods   bool
+		evictSystemCriticalPods bool
+		priorityThreshold       *int32
+		nodeFit                 bool
+		result                  bool
+	}
+
+	testCases := []testCase{
+		{
+			description: "Failed pod eviction with no ownerRefs",
+			pods: []*v1.Pod{
+				test.BuildTestPod("bare_pod_failed", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Status.Phase = v1.PodFailed
+				}),
+			},
+			evictFailedBarePods: false,
+			result:              false,
+		}, {
+			description:         "Normal pod eviction with no ownerRefs and evictFailedBarePods enabled",
+			pods:                []*v1.Pod{test.BuildTestPod("bare_pod", 400, 0, n1.Name, nil)},
+			evictFailedBarePods: true,
+			result:              false,
+		}, {
+			description: "Failed pod eviction with no ownerRefs",
+			pods: []*v1.Pod{
+				test.BuildTestPod("bare_pod_failed_but_can_be_evicted", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Status.Phase = v1.PodFailed
+				}),
+			},
+			evictFailedBarePods: true,
+			result:              true,
+		}, {
+			description: "Normal pod eviction with normal ownerRefs",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Normal pod eviction with normal ownerRefs and descheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p2", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Normal pod eviction with replicaSet ownerRefs",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p3", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Normal pod eviction with replicaSet ownerRefs and descheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p4", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Normal pod eviction with statefulSet ownerRefs",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p18", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Normal pod eviction with statefulSet ownerRefs and descheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p19", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.ObjectMeta.OwnerReferences = test.GetStatefulSetOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod not evicted because it is bound to a PV and evictLocalStoragePods = false",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p5", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Volumes = []v1.Volume{
+						{
+							Name: "sample",
+							VolumeSource: v1.VolumeSource{
+								HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
+								EmptyDir: &v1.EmptyDirVolumeSource{
+									SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
+							},
+						},
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  false,
+		}, {
+			description: "Pod is evicted because it is bound to a PV and evictLocalStoragePods = true",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p6", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Volumes = []v1.Volume{
+						{
+							Name: "sample",
+							VolumeSource: v1.VolumeSource{
+								HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
+								EmptyDir: &v1.EmptyDirVolumeSource{
+									SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
+							},
+						},
+					}
+				}),
+			},
+			evictLocalStoragePods:   true,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod is evicted because it is bound to a PV and evictLocalStoragePods = false, but it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p7", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Volumes = []v1.Volume{
+						{
+							Name: "sample",
+							VolumeSource: v1.VolumeSource{
+								HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
+								EmptyDir: &v1.EmptyDirVolumeSource{
+									SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
+							},
+						},
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod not evicted becasuse it is part of a daemonSet",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p8", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  false,
+		}, {
+			description: "Pod is evicted becasuse it is part of a daemonSet, but it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p9", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod not evicted becasuse it is a mirror poddsa",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p10", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Annotations = test.GetMirrorPodAnnotation()
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  false,
+		}, {
+			description: "Pod is evicted becasuse it is a mirror pod, but it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p11", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Annotations = test.GetMirrorPodAnnotation()
+					pod.Annotations["descheduler.alpha.kubernetes.io/evict"] = "true"
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod not evicted becasuse it has system critical priority",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p12", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					priority := utils.SystemCriticalPriority
+					pod.Spec.Priority = &priority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  false,
+		}, {
+			description: "Pod is evicted becasuse it has system critical priority, but it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p13", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					priority := utils.SystemCriticalPriority
+					pod.Spec.Priority = &priority
+					pod.Annotations = map[string]string{
+						"descheduler.alpha.kubernetes.io/evict": "true",
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			result:                  true,
+		}, {
+			description: "Pod not evicted becasuse it has a priority higher than the configured priority threshold",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p14", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Priority = &highPriority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			priorityThreshold:       &lowPriority,
+			result:                  false,
+		}, {
+			description: "Pod is evicted becasuse it has a priority higher than the configured priority threshold, but it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p15", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.Spec.Priority = &highPriority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			priorityThreshold:       &lowPriority,
+			result:                  true,
+		}, {
+			description: "Pod is evicted becasuse it has system critical priority, but evictSystemCriticalPods = true",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p16", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					priority := utils.SystemCriticalPriority
+					pod.Spec.Priority = &priority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: true,
+			result:                  true,
+		}, {
+			description: "Pod is evicted becasuse it has system critical priority, but evictSystemCriticalPods = true and it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p16", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					priority := utils.SystemCriticalPriority
+					pod.Spec.Priority = &priority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: true,
+			result:                  true,
+		}, {
+			description: "Pod is evicted becasuse it has a priority higher than the configured priority threshold, but evictSystemCriticalPods = true",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p17", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Priority = &highPriority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: true,
+			priorityThreshold:       &lowPriority,
+			result:                  true,
+		}, {
+			description: "Pod is evicted becasuse it has a priority higher than the configured priority threshold, but evictSystemCriticalPods = true and it has scheduler.alpha.kubernetes.io/evict annotation",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p17", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+					pod.Spec.Priority = &highPriority
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: true,
+			priorityThreshold:       &lowPriority,
+			result:                  true,
+		}, {
+			description: "Pod with no tolerations running on normal node, all other nodes tainted",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 1000, 2000, 13, func(node *v1.Node) {
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				test.BuildTestNode("node3", 1000, 2000, 13, func(node *v1.Node) {
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  false,
+		}, {
+			description: "Pod with correct tolerations running on normal node, all other nodes tainted",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.Tolerations = []v1.Toleration{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 1000, 2000, 13, func(node *v1.Node) {
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+				test.BuildTestNode("node3", 1000, 2000, 13, func(node *v1.Node) {
+					node.Spec.Taints = []v1.Taint{
+						{
+							Key:    nodeTaintKey,
+							Value:  nodeTaintValue,
+							Effect: v1.TaintEffectNoSchedule,
+						},
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  true,
+		}, {
+			description: "Pod with incorrect node selector",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.NodeSelector = map[string]string{
+						nodeLabelKey: "fail",
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 1000, 2000, 13, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestNode("node3", 1000, 2000, 13, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  false,
+		}, {
+			description: "Pod with correct node selector",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.NodeSelector = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 1000, 2000, 13, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestNode("node3", 1000, 2000, 13, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  true,
+		}, {
+			description: "Pod with correct node selector, but only available node doesn't have enough CPU",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 12, 8, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.NodeSelector = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2-TEST", 10, 16, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestNode("node3-TEST", 10, 16, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  false,
+		}, {
+			description: "Pod with correct node selector, and one node has enough memory",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 12, 8, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.NodeSelector = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestPod("node2-pod-10GB-mem", 20, 10, "node2", func(pod *v1.Pod) {
+					pod.ObjectMeta.Labels = map[string]string{
+						"test": "true",
+					}
+				}),
+				test.BuildTestPod("node3-pod-10GB-mem", 20, 10, "node3", func(pod *v1.Pod) {
+					pod.ObjectMeta.Labels = map[string]string{
+						"test": "true",
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 100, 16, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestNode("node3", 100, 20, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  true,
+		}, {
+			description: "Pod with correct node selector, but both nodes don't have enough memory",
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 12, 8, n1.Name, func(pod *v1.Pod) {
+					pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+					pod.Spec.NodeSelector = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestPod("node2-pod-10GB-mem", 10, 10, "node2", func(pod *v1.Pod) {
+					pod.ObjectMeta.Labels = map[string]string{
+						"test": "true",
+					}
+				}),
+				test.BuildTestPod("node3-pod-10GB-mem", 10, 10, "node3", func(pod *v1.Pod) {
+					pod.ObjectMeta.Labels = map[string]string{
+						"test": "true",
+					}
+				}),
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode("node2", 100, 16, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+				test.BuildTestNode("node3", 100, 16, 10, func(node *v1.Node) {
+					node.ObjectMeta.Labels = map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					}
+				}),
+			},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			nodeFit:                 true,
+			result:                  false,
+		},
+	}
+
+	for _, test := range testCases {
+
+		t.Run(test.description, func(t *testing.T) {
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			var objs []runtime.Object
+			for _, node := range test.nodes {
+				objs = append(objs, node)
+			}
+			for _, pod := range test.pods {
+				objs = append(objs, pod)
+			}
+
+			fakeClient := fake.NewSimpleClientset(objs...)
+
+			sharedInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
+			podInformer := sharedInformerFactory.Core().V1().Pods()
+
+			getPodsAssignedToNode, err := podutil.BuildGetPodsAssignedToNodeFunc(podInformer)
+			if err != nil {
+				t.Errorf("Build get pods assigned to node function error: %v", err)
+			}
+
+			sharedInformerFactory.Start(ctx.Done())
+			sharedInformerFactory.WaitForCacheSync(ctx.Done())
+
+			// var opts []func(opts *FilterOptions)
+			// if test.priorityThreshold != nil {
+			// 	opts = append(opts, WithPriorityThreshold(*test.priorityThreshold))
+			// }
+			// if test.nodeFit {
+			// 	opts = append(opts, WithNodeFit(true))
+			// }
+
+			defaultEvictorArgs := &DefaultEvictorArgs{
+				EvictLocalStoragePods:   test.evictLocalStoragePods,
+				EvictSystemCriticalPods: test.evictSystemCriticalPods,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     test.evictFailedBarePods,
+				PriorityThreshold: &api.PriorityThreshold{
+					Value: test.priorityThreshold,
+				},
+				NodeFit: test.nodeFit,
+			}
+
+			evictorPlugin, err := New(
+				defaultEvictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				})
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			result := evictorPlugin.(framework.EvictorPlugin).Filter(test.pods[0])
+			if result != test.result {
+				t.Errorf("Filter should return for pod %s %t, but it returns %t", test.pods[0].Name, test.result, result)
+			}
+
+		})
+	}
+}

pkg/framework/plugins/defaultevictor/types.go

@@ -0,0 +1,37 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package defaultevictor
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"sigs.k8s.io/descheduler/pkg/api"
+)
+
+// +k8s:deepcopy-gen=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// DefaultEvictorArgs holds arguments used to configure DefaultEvictor plugin.
+type DefaultEvictorArgs struct {
+	metav1.TypeMeta
+
+	NodeSelector            string
+	EvictLocalStoragePods   bool
+	EvictSystemCriticalPods bool
+	IgnorePvcPods           bool
+	EvictFailedBarePods     bool
+	LabelSelector           labels.Selector
+	PriorityThreshold       *api.PriorityThreshold
+	NodeFit                 bool
+}

pkg/framework/plugins/defaultevictor/zz_generated.deepcopy.go

@@ -0,0 +1,60 @@
+//go:build !ignore_autogenerated
+// +build !ignore_autogenerated
+
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package defaultevictor
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	api "sigs.k8s.io/descheduler/pkg/api"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DefaultEvictorArgs) DeepCopyInto(out *DefaultEvictorArgs) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.LabelSelector != nil {
+		out.LabelSelector = in.LabelSelector.DeepCopySelector()
+	}
+	if in.PriorityThreshold != nil {
+		in, out := &in.PriorityThreshold, &out.PriorityThreshold
+		*out = new(api.PriorityThreshold)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DefaultEvictorArgs.
+func (in *DefaultEvictorArgs) DeepCopy() *DefaultEvictorArgs {
+	if in == nil {
+		return nil
+	}
+	out := new(DefaultEvictorArgs)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *DefaultEvictorArgs) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}

pkg/framework/plugins/nodeutilization/highnodeutilization.go

@@ -1,11 +1,11 @@
 /*
-Copyright 2021 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-   http://www.apache.org/licenses/LICENSE-2.0
+    http://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
@@ -22,57 +22,75 @@ import (
 
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
-	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/klog/v2"
-
 	"sigs.k8s.io/descheduler/pkg/api"
-	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
+
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/pkg/framework"
 )
 
-// HighNodeUtilization evicts pods from under utilized nodes so that scheduler can schedule according to its strategy.
+const HighNodeUtilizationPluginName = "HighNodeUtilization"
+
+// HighNodeUtilization evicts pods from under utilized nodes so that scheduler can schedule according to its plugin.
 // Note that CPU/Memory requests are used to calculate nodes' utilization and not the actual resource usage.
-func HighNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validateNodeUtilizationParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid HighNodeUtilization parameters")
-		return
+
+type HighNodeUtilization struct {
+	handle    framework.Handle
+	args      *componentconfig.HighNodeUtilizationArgs
+	podFilter func(pod *v1.Pod) bool
+}
+
+var _ framework.BalancePlugin = &HighNodeUtilization{}
+
+// NewHighNodeUtilization builds plugin from its arguments while passing a handle
+func NewHighNodeUtilization(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	highNodeUtilizatioArgs, ok := args.(*componentconfig.HighNodeUtilizationArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type HighNodeUtilizationArgs, got %T", args)
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		BuildFilterFunc()
 	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
 	}
 
-	thresholds := strategy.Params.NodeResourceUtilizationThresholds.Thresholds
-	targetThresholds := strategy.Params.NodeResourceUtilizationThresholds.TargetThresholds
-	if err := validateHighUtilizationStrategyConfig(thresholds, targetThresholds); err != nil {
-		klog.ErrorS(err, "HighNodeUtilization config is not valid")
-		return
-	}
-	targetThresholds = make(api.ResourceThresholds)
+	return &HighNodeUtilization{
+		handle:    handle,
+		args:      highNodeUtilizatioArgs,
+		podFilter: podFilter,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (h *HighNodeUtilization) Name() string {
+	return HighNodeUtilizationPluginName
+}
+
+// Balance extension point implementation for the plugin
+func (h *HighNodeUtilization) Balance(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	thresholds := h.args.Thresholds
+	targetThresholds := make(api.ResourceThresholds)
 
 	setDefaultForThresholds(thresholds, targetThresholds)
 	resourceNames := getResourceNames(targetThresholds)
 
 	sourceNodes, highNodes := classifyNodes(
-		getNodeUsage(nodes, thresholds, targetThresholds, resourceNames, getPodsAssignedToNode),
-		func(node *v1.Node, usage NodeUsage) bool {
-			return isNodeWithLowUtilization(usage)
+		getNodeUsage(nodes, resourceNames, h.handle.GetPodsAssignedToNodeFunc()),
+		getNodeThresholds(nodes, thresholds, targetThresholds, resourceNames, h.handle.GetPodsAssignedToNodeFunc(), false),
+		func(node *v1.Node, usage NodeUsage, threshold NodeThresholds) bool {
+			return isNodeWithLowUtilization(usage, threshold.lowResourceThreshold)
 		},
-		func(node *v1.Node, usage NodeUsage) bool {
+		func(node *v1.Node, usage NodeUsage, threshold NodeThresholds) bool {
 			if nodeutil.IsNodeUnschedulable(node) {
 				klog.V(2).InfoS("Node is unschedulable", "node", klog.KObj(node))
 				return false
 			}
-			return !isNodeWithLowUtilization(usage)
+			return !isNodeWithLowUtilization(usage, threshold.lowResourceThreshold)
 		})
 
 	// log message in one line
@@ -82,7 +100,7 @@ func HighNodeUtilization(ctx context.Context, client clientset.Interface, strate
 		"Pods", thresholds[v1.ResourcePods],
 	}
 	for name := range thresholds {
-		if !isBasicResource(name) {
+		if !nodeutil.IsBasicResource(name) {
 			keysAndValues = append(keysAndValues, string(name), int64(thresholds[name]))
 		}
 	}
@@ -92,25 +110,23 @@ func HighNodeUtilization(ctx context.Context, client clientset.Interface, strate
 
 	if len(sourceNodes) == 0 {
 		klog.V(1).InfoS("No node is underutilized, nothing to do here, you might tune your thresholds further")
-		return
+		return nil
 	}
-	if len(sourceNodes) <= strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes {
-		klog.V(1).InfoS("Number of nodes underutilized is less or equal than NumberOfNodes, nothing to do here", "underutilizedNodes", len(sourceNodes), "numberOfNodes", strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes)
-		return
+	if len(sourceNodes) <= h.args.NumberOfNodes {
+		klog.V(1).InfoS("Number of nodes underutilized is less or equal than NumberOfNodes, nothing to do here", "underutilizedNodes", len(sourceNodes), "numberOfNodes", h.args.NumberOfNodes)
+		return nil
 	}
 	if len(sourceNodes) == len(nodes) {
 		klog.V(1).InfoS("All nodes are underutilized, nothing to do here")
-		return
+		return nil
 	}
 	if len(highNodes) == 0 {
 		klog.V(1).InfoS("No node is available to schedule the pods, nothing to do here")
-		return
+		return nil
 	}
 
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	// stop if the total available usage has dropped to zero - no more pods can be scheduled
-	continueEvictionCond := func(nodeUsage NodeUsage, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
+	continueEvictionCond := func(nodeInfo NodeInfo, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
 		for name := range totalAvailableUsage {
 			if totalAvailableUsage[name].CmpInt64(0) < 1 {
 				return false
@@ -119,25 +135,19 @@ func HighNodeUtilization(ctx context.Context, client clientset.Interface, strate
 
 		return true
 	}
+
+	// Sort the nodes by the usage in ascending order
+	sortNodesByUsage(sourceNodes, true)
+
 	evictPodsFromSourceNodes(
 		ctx,
 		sourceNodes,
 		highNodes,
-		podEvictor,
-		evictable.IsEvictable,
+		h.handle.Evictor(),
+		h.podFilter,
 		resourceNames,
-		"HighNodeUtilization",
 		continueEvictionCond)
 
-}
-
-func validateHighUtilizationStrategyConfig(thresholds, targetThresholds api.ResourceThresholds) error {
-	if targetThresholds != nil {
-		return fmt.Errorf("targetThresholds is not applicable for HighNodeUtilization")
-	}
-	if err := validateThresholds(thresholds); err != nil {
-		return fmt.Errorf("thresholds config is not valid: %v", err)
-	}
 	return nil
 }
 
@@ -159,7 +169,7 @@ func setDefaultForThresholds(thresholds, targetThresholds api.ResourceThresholds
 	targetThresholds[v1.ResourceMemory] = MaxResourcePercentage
 
 	for name := range thresholds {
-		if !isBasicResource(name) {
+		if !nodeutil.IsBasicResource(name) {
 			targetThresholds[name] = MaxResourcePercentage
 		}
 	}

pkg/framework/plugins/nodeutilization/highnodeutilization_test.go

@@ -22,16 +22,21 @@ import (
 	"testing"
 
 	v1 "k8s.io/api/core/v1"
-	"k8s.io/api/policy/v1beta1"
+	policy "k8s.io/api/policy/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
 	core "k8s.io/client-go/testing"
+	"k8s.io/client-go/tools/events"
 
 	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/pkg/utils"
 	"sigs.k8s.io/descheduler/test"
 )
@@ -315,7 +320,7 @@ func TestHighNodeUtilization(t *testing.T) {
 				test.BuildTestNode(n3NodeName, 4000, 3000, 10, test.SetNodeUnschedulable),
 			},
 			pods: []*v1.Pod{
-				//These won't be evicted
+				// These won't be evicted
 				test.BuildTestPod("p1", 100, 0, n1NodeName, func(pod *v1.Pod) {
 					test.SetRSOwnerRef(pod)
 					test.SetPodExtendedResourceRequest(pod, extendedResource, 1)
@@ -385,6 +390,50 @@ func TestHighNodeUtilization(t *testing.T) {
 			},
 			expectedPodsEvicted: 0,
 		},
+		{
+			name: "Other node does not have enough Memory",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  30,
+				v1.ResourcePods: 30,
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode(n1NodeName, 4000, 200, 9, nil),
+				test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+			},
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p2", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p3", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p4", 400, 50, n1NodeName, test.SetDSOwnerRef),
+				test.BuildTestPod("p5", 400, 100, n2NodeName, func(pod *v1.Pod) {
+					// A pod requesting more memory than is available on node1
+					test.SetRSOwnerRef(pod)
+				}),
+			},
+			expectedPodsEvicted: 0,
+		},
+		{
+			name: "Other node does not have enough Memory",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  30,
+				v1.ResourcePods: 30,
+			},
+			nodes: []*v1.Node{
+				test.BuildTestNode(n1NodeName, 4000, 200, 9, nil),
+				test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+			},
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p2", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p3", 400, 50, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p4", 400, 50, n1NodeName, test.SetDSOwnerRef),
+				test.BuildTestPod("p5", 400, 100, n2NodeName, func(pod *v1.Pod) {
+					// A pod requesting more memory than is available on node1
+					test.SetRSOwnerRef(pod)
+				}),
+			},
+			expectedPodsEvicted: 0,
+		},
 	}
 
 	for _, testCase := range testCases {
@@ -419,7 +468,7 @@ func TestHighNodeUtilization(t *testing.T) {
 				fakeClient.Fake.AddReactor("create", "pods", func(action core.Action) (bool, runtime.Object, error) {
 					getAction := action.(core.CreateAction)
 					obj := getAction.GetObject()
-					if eviction, ok := obj.(*v1beta1.Eviction); ok {
+					if eviction, ok := obj.(*policy.Eviction); ok {
 						if _, exists := podsForEviction[eviction.Name]; exists {
 							return true, obj, nil
 						}
@@ -433,28 +482,7 @@ func TestHighNodeUtilization(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
-			//fakeClient := &fake.Clientset{}
-			//fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
-			//	list := action.(core.ListAction)
-			//	fieldString := list.GetListRestrictions().Fields.String()
-			//	if strings.Contains(fieldString, n1NodeName) {
-			//		return true, test.pods[n1NodeName], nil
-			//	}
-			//	if strings.Contains(fieldString, n2NodeName) {
-			//		return true, test.pods[n2NodeName], nil
-			//	}
-			//	if strings.Contains(fieldString, n3NodeName) {
-			//		return true, test.pods[n3NodeName], nil
-			//	}
-			//	return true, nil, fmt.Errorf("Failed to list: %v", list)
-			//})
-			//fakeClient.Fake.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
-			//	getAction := action.(core.GetAction)
-			//	if node, exists := testCase.nodes[getAction.GetName()]; exists {
-			//		return true, node, nil
-			//	}
-			//	return true, nil, fmt.Errorf("Wrong node: %v", getAction.GetName())
-			//})
+			eventRecorder := &events.FakeRecorder{}
 
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
@@ -464,22 +492,46 @@ func TestHighNodeUtilization(t *testing.T) {
 				nil,
 				testCase.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			strategy := api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					NodeResourceUtilizationThresholds: &api.NodeResourceUtilizationThresholds{
-						Thresholds: testCase.thresholds,
-					},
-					NodeFit: true,
-				},
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 true,
 			}
-			HighNodeUtilization(ctx, fakeClient, strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
+
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := NewHighNodeUtilization(&componentconfig.HighNodeUtilizationArgs{
+				Thresholds: testCase.thresholds,
+			},
+				handle)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+			plugin.(framework.BalancePlugin).Balance(ctx, testCase.nodes)
 
 			podsEvicted := podEvictor.TotalEvicted()
 			if testCase.expectedPodsEvicted != podsEvicted {
@@ -492,85 +544,7 @@ func TestHighNodeUtilization(t *testing.T) {
 	}
 }
 
-func TestValidateHighNodeUtilizationStrategyConfig(t *testing.T) {
-	tests := []struct {
-		name             string
-		thresholds       api.ResourceThresholds
-		targetThresholds api.ResourceThresholds
-		errInfo          error
-	}{
-		{
-			name: "passing target thresholds",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: fmt.Errorf("targetThresholds is not applicable for HighNodeUtilization"),
-		},
-		{
-			name:       "passing empty thresholds",
-			thresholds: api.ResourceThresholds{},
-			errInfo:    fmt.Errorf("thresholds config is not valid: no resource threshold is configured"),
-		},
-		{
-			name: "passing invalid thresholds",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 120,
-			},
-			errInfo: fmt.Errorf("thresholds config is not valid: %v", fmt.Errorf(
-				"%v threshold not in [%v, %v] range", v1.ResourceMemory, MinResourcePercentage, MaxResourcePercentage)),
-		},
-		{
-			name: "passing valid strategy config",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing valid strategy config with extended resource",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				extendedResource:  80,
-			},
-			errInfo: nil,
-		},
-	}
-
-	for _, testCase := range tests {
-		validateErr := validateHighUtilizationStrategyConfig(testCase.thresholds, testCase.targetThresholds)
-
-		if validateErr == nil || testCase.errInfo == nil {
-			if validateErr != testCase.errInfo {
-				t.Errorf("expected validity of strategy config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
-					testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
-			}
-		} else if validateErr.Error() != testCase.errInfo.Error() {
-			t.Errorf("expected validity of strategy config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
-				testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
-		}
-	}
-}
-
 func TestHighNodeUtilizationWithTaints(t *testing.T) {
-	strategy := api.DeschedulerStrategy{
-		Enabled: true,
-		Params: &api.StrategyParameters{
-			NodeResourceUtilizationThresholds: &api.NodeResourceUtilizationThresholds{
-				Thresholds: api.ResourceThresholds{
-					v1.ResourceCPU: 40,
-				},
-			},
-		},
-	}
-
 	n1 := test.BuildTestNode("n1", 1000, 3000, 10, nil)
 	n2 := test.BuildTestNode("n2", 1000, 3000, 10, nil)
 	n3 := test.BuildTestNode("n3", 1000, 3000, 10, nil)
@@ -601,7 +575,7 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 			name:  "No taints",
 			nodes: []*v1.Node{n1, n2, n3},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
@@ -614,7 +588,7 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 			name:  "No pod tolerates node taint",
 			nodes: []*v1.Node{n1, n3withTaints},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				// Node 3 pods
 				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n3withTaints.Name), 200, 0, n3withTaints.Name, test.SetRSOwnerRef),
@@ -625,7 +599,7 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 			name:  "Pod which tolerates node taint",
 			nodes: []*v1.Node{n1, n3withTaints},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 100, 0, n1.Name, test.SetRSOwnerRef),
 				podThatToleratesTaint,
 				// Node 3 pods
@@ -661,6 +635,8 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				"policy/v1",
@@ -669,13 +645,47 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 				nil,
 				item.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			HighNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, getPodsAssignedToNode)
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := NewHighNodeUtilization(&componentconfig.HighNodeUtilizationArgs{
+				Thresholds: api.ResourceThresholds{
+					v1.ResourceCPU: 40,
+				},
+			},
+				handle)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+			plugin.(framework.BalancePlugin).Balance(ctx, item.nodes)
 
 			if item.evictionsExpected != podEvictor.TotalEvicted() {
 				t.Errorf("Expected %v evictions, got %v", item.evictionsExpected, podEvictor.TotalEvicted())

pkg/framework/plugins/nodeutilization/lownodeutilization.go

@@ -0,0 +1,199 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package nodeutilization
+
+import (
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/klog/v2"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+)
+
+const LowNodeUtilizationPluginName = "LowNodeUtilization"
+
+// LowNodeUtilization evicts pods from overutilized nodes to underutilized nodes. Note that CPU/Memory requests are used
+// to calculate nodes' utilization and not the actual resource usage.
+
+type LowNodeUtilization struct {
+	handle    framework.Handle
+	args      *componentconfig.LowNodeUtilizationArgs
+	podFilter func(pod *v1.Pod) bool
+}
+
+var _ framework.BalancePlugin = &LowNodeUtilization{}
+
+// NewLowNodeUtilization builds plugin from its arguments while passing a handle
+func NewLowNodeUtilization(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	lowNodeUtilizationArgsArgs, ok := args.(*componentconfig.LowNodeUtilizationArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type LowNodeUtilizationArgs, got %T", args)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	return &LowNodeUtilization{
+		handle:    handle,
+		args:      lowNodeUtilizationArgsArgs,
+		podFilter: podFilter,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (l *LowNodeUtilization) Name() string {
+	return LowNodeUtilizationPluginName
+}
+
+// Balance extension point implementation for the plugin
+func (l *LowNodeUtilization) Balance(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	useDeviationThresholds := l.args.UseDeviationThresholds
+	thresholds := l.args.Thresholds
+	targetThresholds := l.args.TargetThresholds
+
+	// check if Pods/CPU/Mem are set, if not, set them to 100
+	if _, ok := thresholds[v1.ResourcePods]; !ok {
+		if useDeviationThresholds {
+			thresholds[v1.ResourcePods] = MinResourcePercentage
+			targetThresholds[v1.ResourcePods] = MinResourcePercentage
+		} else {
+			thresholds[v1.ResourcePods] = MaxResourcePercentage
+			targetThresholds[v1.ResourcePods] = MaxResourcePercentage
+		}
+	}
+	if _, ok := thresholds[v1.ResourceCPU]; !ok {
+		if useDeviationThresholds {
+			thresholds[v1.ResourceCPU] = MinResourcePercentage
+			targetThresholds[v1.ResourceCPU] = MinResourcePercentage
+		} else {
+			thresholds[v1.ResourceCPU] = MaxResourcePercentage
+			targetThresholds[v1.ResourceCPU] = MaxResourcePercentage
+		}
+	}
+	if _, ok := thresholds[v1.ResourceMemory]; !ok {
+		if useDeviationThresholds {
+			thresholds[v1.ResourceMemory] = MinResourcePercentage
+			targetThresholds[v1.ResourceMemory] = MinResourcePercentage
+		} else {
+			thresholds[v1.ResourceMemory] = MaxResourcePercentage
+			targetThresholds[v1.ResourceMemory] = MaxResourcePercentage
+		}
+	}
+	resourceNames := getResourceNames(thresholds)
+
+	lowNodes, sourceNodes := classifyNodes(
+		getNodeUsage(nodes, resourceNames, l.handle.GetPodsAssignedToNodeFunc()),
+		getNodeThresholds(nodes, thresholds, targetThresholds, resourceNames, l.handle.GetPodsAssignedToNodeFunc(), useDeviationThresholds),
+		// The node has to be schedulable (to be able to move workload there)
+		func(node *v1.Node, usage NodeUsage, threshold NodeThresholds) bool {
+			if nodeutil.IsNodeUnschedulable(node) {
+				klog.V(2).InfoS("Node is unschedulable, thus not considered as underutilized", "node", klog.KObj(node))
+				return false
+			}
+			return isNodeWithLowUtilization(usage, threshold.lowResourceThreshold)
+		},
+		func(node *v1.Node, usage NodeUsage, threshold NodeThresholds) bool {
+			return isNodeAboveTargetUtilization(usage, threshold.highResourceThreshold)
+		},
+	)
+
+	// log message for nodes with low utilization
+	underutilizationCriteria := []interface{}{
+		"CPU", thresholds[v1.ResourceCPU],
+		"Mem", thresholds[v1.ResourceMemory],
+		"Pods", thresholds[v1.ResourcePods],
+	}
+	for name := range thresholds {
+		if !nodeutil.IsBasicResource(name) {
+			underutilizationCriteria = append(underutilizationCriteria, string(name), int64(thresholds[name]))
+		}
+	}
+	klog.V(1).InfoS("Criteria for a node under utilization", underutilizationCriteria...)
+	klog.V(1).InfoS("Number of underutilized nodes", "totalNumber", len(lowNodes))
+
+	// log message for over utilized nodes
+	overutilizationCriteria := []interface{}{
+		"CPU", targetThresholds[v1.ResourceCPU],
+		"Mem", targetThresholds[v1.ResourceMemory],
+		"Pods", targetThresholds[v1.ResourcePods],
+	}
+	for name := range targetThresholds {
+		if !nodeutil.IsBasicResource(name) {
+			overutilizationCriteria = append(overutilizationCriteria, string(name), int64(targetThresholds[name]))
+		}
+	}
+	klog.V(1).InfoS("Criteria for a node above target utilization", overutilizationCriteria...)
+	klog.V(1).InfoS("Number of overutilized nodes", "totalNumber", len(sourceNodes))
+
+	if len(lowNodes) == 0 {
+		klog.V(1).InfoS("No node is underutilized, nothing to do here, you might tune your thresholds further")
+		return nil
+	}
+
+	if len(lowNodes) <= l.args.NumberOfNodes {
+		klog.V(1).InfoS("Number of nodes underutilized is less or equal than NumberOfNodes, nothing to do here", "underutilizedNodes", len(lowNodes), "numberOfNodes", l.args.NumberOfNodes)
+		return nil
+	}
+
+	if len(lowNodes) == len(nodes) {
+		klog.V(1).InfoS("All nodes are underutilized, nothing to do here")
+		return nil
+	}
+
+	if len(sourceNodes) == 0 {
+		klog.V(1).InfoS("All nodes are under target utilization, nothing to do here")
+		return nil
+	}
+
+	// stop if node utilization drops below target threshold or any of required capacity (cpu, memory, pods) is moved
+	continueEvictionCond := func(nodeInfo NodeInfo, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
+		if !isNodeAboveTargetUtilization(nodeInfo.NodeUsage, nodeInfo.thresholds.highResourceThreshold) {
+			return false
+		}
+		for name := range totalAvailableUsage {
+			if totalAvailableUsage[name].CmpInt64(0) < 1 {
+				return false
+			}
+		}
+
+		return true
+	}
+
+	// Sort the nodes by the usage in descending order
+	sortNodesByUsage(sourceNodes, false)
+
+	evictPodsFromSourceNodes(
+		ctx,
+		sourceNodes,
+		lowNodes,
+		l.handle.Evictor(),
+		l.podFilter,
+		resourceNames,
+		continueEvictionCond)
+
+	return nil
+}

pkg/framework/plugins/nodeutilization/lownodeutilization_test.go

@@ -21,16 +21,21 @@ import (
 	"fmt"
 	"testing"
 
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
+
 	v1 "k8s.io/api/core/v1"
-	policyv1 "k8s.io/api/policy/v1"
-	"k8s.io/api/policy/v1beta1"
+	policy "k8s.io/api/policy/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
 	core "k8s.io/client-go/testing"
+	"k8s.io/client-go/tools/events"
 
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	"sigs.k8s.io/descheduler/pkg/utils"
@@ -48,6 +53,7 @@ func TestLowNodeUtilization(t *testing.T) {
 
 	testCases := []struct {
 		name                         string
+		useDeviationThresholds       bool
 		thresholds, targetThresholds api.ResourceThresholds
 		nodes                        []*v1.Node
 		pods                         []*v1.Pod
@@ -643,6 +649,57 @@ func TestLowNodeUtilization(t *testing.T) {
 			},
 			expectedPodsEvicted: 3,
 		},
+		{
+			name: "deviation thresholds",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  5,
+				v1.ResourcePods: 5,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  5,
+				v1.ResourcePods: 5,
+			},
+			useDeviationThresholds: true,
+			nodes: []*v1.Node{
+				test.BuildTestNode(n1NodeName, 4000, 3000, 9, nil),
+				test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+				test.BuildTestNode(n3NodeName, 4000, 3000, 10, test.SetNodeUnschedulable),
+			},
+			pods: []*v1.Pod{
+				test.BuildTestPod("p1", 400, 0, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p2", 400, 0, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p3", 400, 0, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p4", 400, 0, n1NodeName, test.SetRSOwnerRef),
+				test.BuildTestPod("p5", 400, 0, n1NodeName, test.SetRSOwnerRef),
+				// These won't be evicted.
+				test.BuildTestPod("p6", 400, 0, n1NodeName, test.SetDSOwnerRef),
+				test.BuildTestPod("p7", 400, 0, n1NodeName, func(pod *v1.Pod) {
+					// A pod with local storage.
+					test.SetNormalOwnerRef(pod)
+					pod.Spec.Volumes = []v1.Volume{
+						{
+							Name: "sample",
+							VolumeSource: v1.VolumeSource{
+								HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
+								EmptyDir: &v1.EmptyDirVolumeSource{
+									SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
+							},
+						},
+					}
+					// A Mirror Pod.
+					pod.Annotations = test.GetMirrorPodAnnotation()
+				}),
+				test.BuildTestPod("p8", 400, 0, n1NodeName, func(pod *v1.Pod) {
+					// A Critical Pod.
+					pod.Namespace = "kube-system"
+					priority := utils.SystemCriticalPriority
+					pod.Spec.Priority = &priority
+				}),
+				test.BuildTestPod("p9", 400, 0, n2NodeName, test.SetRSOwnerRef),
+			},
+			expectedPodsEvicted: 2,
+			evictedPods:         []string{},
+		},
 	}
 
 	for _, test := range testCases {
@@ -667,28 +724,6 @@ func TestLowNodeUtilization(t *testing.T) {
 				t.Errorf("Build get pods assigned to node function error: %v", err)
 			}
 
-			//fakeClient := &fake.Clientset{}
-			//fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
-			//	list := action.(core.ListAction)
-			//	fieldString := list.GetListRestrictions().Fields.String()
-			//	if strings.Contains(fieldString, n1NodeName) {
-			//		return true, test.pods[n1NodeName], nil
-			//	}
-			//	if strings.Contains(fieldString, n2NodeName) {
-			//		return true, test.pods[n2NodeName], nil
-			//	}
-			//	if strings.Contains(fieldString, n3NodeName) {
-			//		return true, test.pods[n3NodeName], nil
-			//	}
-			//	return true, nil, fmt.Errorf("Failed to list: %v", list)
-			//})
-			//fakeClient.Fake.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
-			//	getAction := action.(core.GetAction)
-			//	if node, exists := test.nodes[getAction.GetName()]; exists {
-			//		return true, node, nil
-			//	}
-			//	return true, nil, fmt.Errorf("Wrong node: %v", getAction.GetName())
-			//})
 			podsForEviction := make(map[string]struct{})
 			for _, pod := range test.evictedPods {
 				podsForEviction[pod] = struct{}{}
@@ -699,7 +734,7 @@ func TestLowNodeUtilization(t *testing.T) {
 				fakeClient.Fake.AddReactor("create", "pods", func(action core.Action) (bool, runtime.Object, error) {
 					getAction := action.(core.CreateAction)
 					obj := getAction.GetObject()
-					if eviction, ok := obj.(*v1beta1.Eviction); ok {
+					if eviction, ok := obj.(*policy.Eviction); ok {
 						if _, exists := podsForEviction[eviction.Name]; exists {
 							return true, obj, nil
 						}
@@ -713,31 +748,59 @@ func TestLowNodeUtilization(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
-				policyv1.SchemeGroupVersion.String(),
+				policy.SchemeGroupVersion.String(),
 				false,
 				nil,
 				nil,
 				test.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			strategy := api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					NodeResourceUtilizationThresholds: &api.NodeResourceUtilizationThresholds{
-						Thresholds:       test.thresholds,
-						TargetThresholds: test.targetThresholds,
-					},
-					NodeFit: true,
-				},
+			defaultEvictorFilterArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 true,
 			}
-			LowNodeUtilization(ctx, fakeClient, strategy, test.nodes, podEvictor, getPodsAssignedToNode)
+
+			evictorFilter, err := defaultevictor.New(
+				defaultEvictorFilterArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := NewLowNodeUtilization(&componentconfig.LowNodeUtilizationArgs{
+
+				Thresholds:             test.thresholds,
+				TargetThresholds:       test.targetThresholds,
+				UseDeviationThresholds: test.useDeviationThresholds,
+			},
+				handle)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+			plugin.(framework.BalancePlugin).Balance(ctx, test.nodes)
 
 			podsEvicted := podEvictor.TotalEvicted()
 			if test.expectedPodsEvicted != podsEvicted {
@@ -750,176 +813,8 @@ func TestLowNodeUtilization(t *testing.T) {
 	}
 }
 
-func TestValidateLowNodeUtilizationStrategyConfig(t *testing.T) {
-	tests := []struct {
-		name             string
-		thresholds       api.ResourceThresholds
-		targetThresholds api.ResourceThresholds
-		errInfo          error
-	}{
-		{
-			name: "passing invalid thresholds",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 120,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: fmt.Errorf("thresholds config is not valid: %v", fmt.Errorf(
-				"%v threshold not in [%v, %v] range", v1.ResourceMemory, MinResourcePercentage, MaxResourcePercentage)),
-		},
-		{
-			name: "thresholds and targetThresholds configured different num of resources",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				v1.ResourcePods:   80,
-			},
-			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
-		},
-		{
-			name: "thresholds and targetThresholds configured different resources",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:  80,
-				v1.ResourcePods: 80,
-			},
-			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
-		},
-		{
-			name: "thresholds' CPU config value is greater than targetThresholds'",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    90,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", v1.ResourceCPU),
-		},
-		{
-			name: "only thresholds configured extended resource",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-				extendedResource:  20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
-		},
-		{
-			name: "only targetThresholds configured extended resource",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				extendedResource:  80,
-			},
-			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
-		},
-		{
-			name: "thresholds and targetThresholds configured different extended resources",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-				extendedResource:  20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				"example.com/bar": 80,
-			},
-			errInfo: fmt.Errorf("thresholds and targetThresholds configured different resources"),
-		},
-		{
-			name: "thresholds' extended resource config value is greater than targetThresholds'",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-				extendedResource:  90,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				extendedResource:  20,
-			},
-			errInfo: fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", extendedResource),
-		},
-		{
-			name: "passing valid strategy config",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-			},
-			errInfo: nil,
-		},
-		{
-			name: "passing valid strategy config with extended resource",
-			thresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    20,
-				v1.ResourceMemory: 20,
-				extendedResource:  20,
-			},
-			targetThresholds: api.ResourceThresholds{
-				v1.ResourceCPU:    80,
-				v1.ResourceMemory: 80,
-				extendedResource:  80,
-			},
-			errInfo: nil,
-		},
-	}
-
-	for _, testCase := range tests {
-		validateErr := validateLowUtilizationStrategyConfig(testCase.thresholds, testCase.targetThresholds)
-
-		if validateErr == nil || testCase.errInfo == nil {
-			if validateErr != testCase.errInfo {
-				t.Errorf("expected validity of strategy config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
-					testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
-			}
-		} else if validateErr.Error() != testCase.errInfo.Error() {
-			t.Errorf("expected validity of strategy config: thresholds %#v targetThresholds %#v to be %v but got %v instead",
-				testCase.thresholds, testCase.targetThresholds, testCase.errInfo, validateErr)
-		}
-	}
-}
-
 func TestLowNodeUtilizationWithTaints(t *testing.T) {
 	ctx := context.Background()
-	strategy := api.DeschedulerStrategy{
-		Enabled: true,
-		Params: &api.StrategyParameters{
-			NodeResourceUtilizationThresholds: &api.NodeResourceUtilizationThresholds{
-				Thresholds: api.ResourceThresholds{
-					v1.ResourcePods: 20,
-				},
-				TargetThresholds: api.ResourceThresholds{
-					v1.ResourcePods: 70,
-				},
-			},
-			NodeFit: true,
-		},
-	}
 
 	n1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
 	n2 := test.BuildTestNode("n2", 1000, 3000, 10, nil)
@@ -951,7 +846,7 @@ func TestLowNodeUtilizationWithTaints(t *testing.T) {
 			name:  "No taints",
 			nodes: []*v1.Node{n1, n2, n3},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
@@ -969,7 +864,7 @@ func TestLowNodeUtilizationWithTaints(t *testing.T) {
 			name:  "No pod tolerates node taint",
 			nodes: []*v1.Node{n1, n3withTaints},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
@@ -987,7 +882,7 @@ func TestLowNodeUtilizationWithTaints(t *testing.T) {
 			name:  "Pod which tolerates node taint",
 			nodes: []*v1.Node{n1, n3withTaints},
 			pods: []*v1.Pod{
-				//Node 1 pods
+				// Node 1 pods
 				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
 				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, test.SetRSOwnerRef),
@@ -1026,21 +921,62 @@ func TestLowNodeUtilizationWithTaints(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
-				policyv1.SchemeGroupVersion.String(),
+				policy.SchemeGroupVersion.String(),
 				false,
 				&item.evictionsExpected,
 				nil,
 				item.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			LowNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, getPodsAssignedToNode)
+			defaultEvictorFilterArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 true,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultEvictorFilterArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := NewLowNodeUtilization(&componentconfig.LowNodeUtilizationArgs{
+
+				Thresholds: api.ResourceThresholds{
+					v1.ResourcePods: 20,
+				},
+				TargetThresholds: api.ResourceThresholds{
+					v1.ResourcePods: 70,
+				},
+			},
+				handle)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+			plugin.(framework.BalancePlugin).Balance(ctx, item.nodes)
 
 			if item.evictionsExpected != podEvictor.TotalEvicted() {
 				t.Errorf("Expected %v evictions, got %v", item.evictionsExpected, podEvictor.TotalEvicted())

pkg/framework/plugins/nodeutilization/nodeutilization.go

@@ -18,16 +18,17 @@ package nodeutilization
 
 import (
 	"context"
-	"fmt"
+	"sigs.k8s.io/descheduler/pkg/api"
 	"sort"
 
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/klog/v2"
-
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	"sigs.k8s.io/descheduler/pkg/descheduler/node"
+	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
 	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
@@ -36,12 +37,19 @@ type NodeUsage struct {
 	node    *v1.Node
 	usage   map[v1.ResourceName]*resource.Quantity
 	allPods []*v1.Pod
+}
 
+type NodeThresholds struct {
 	lowResourceThreshold  map[v1.ResourceName]*resource.Quantity
 	highResourceThreshold map[v1.ResourceName]*resource.Quantity
 }
 
-type continueEvictionCond func(nodeUsage NodeUsage, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool
+type NodeInfo struct {
+	NodeUsage
+	thresholds NodeThresholds
+}
+
+type continueEvictionCond func(nodeInfo NodeInfo, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool
 
 // NodePodsMap is a set of (node, pods) pairs
 type NodePodsMap map[*v1.Node][]*v1.Pod
@@ -53,33 +61,63 @@ const (
 	MaxResourcePercentage = 100
 )
 
-func validateNodeUtilizationParams(params *api.StrategyParameters) error {
-	if params == nil || params.NodeResourceUtilizationThresholds == nil {
-		return fmt.Errorf("NodeResourceUtilizationThresholds not set")
+func normalizePercentage(percent api.Percentage) api.Percentage {
+	if percent > MaxResourcePercentage {
+		return MaxResourcePercentage
 	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
+	if percent < MinResourcePercentage {
+		return MinResourcePercentage
 	}
-
-	return nil
+	return percent
 }
 
-// validateThresholds checks if thresholds have valid resource name and resource percentage configured
-func validateThresholds(thresholds api.ResourceThresholds) error {
-	if thresholds == nil || len(thresholds) == 0 {
-		return fmt.Errorf("no resource threshold is configured")
+func getNodeThresholds(
+	nodes []*v1.Node,
+	lowThreshold, highThreshold api.ResourceThresholds,
+	resourceNames []v1.ResourceName,
+	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
+	useDeviationThresholds bool,
+) map[string]NodeThresholds {
+	nodeThresholdsMap := map[string]NodeThresholds{}
+
+	averageResourceUsagePercent := api.ResourceThresholds{}
+	if useDeviationThresholds {
+		averageResourceUsagePercent = averageNodeBasicresources(nodes, getPodsAssignedToNode, resourceNames)
 	}
-	for name, percent := range thresholds {
-		if percent < MinResourcePercentage || percent > MaxResourcePercentage {
-			return fmt.Errorf("%v threshold not in [%v, %v] range", name, MinResourcePercentage, MaxResourcePercentage)
+
+	for _, node := range nodes {
+		nodeCapacity := node.Status.Capacity
+		if len(node.Status.Allocatable) > 0 {
+			nodeCapacity = node.Status.Allocatable
 		}
+
+		nodeThresholdsMap[node.Name] = NodeThresholds{
+			lowResourceThreshold:  map[v1.ResourceName]*resource.Quantity{},
+			highResourceThreshold: map[v1.ResourceName]*resource.Quantity{},
+		}
+
+		for _, resourceName := range resourceNames {
+			if useDeviationThresholds {
+				cap := nodeCapacity[resourceName]
+				if lowThreshold[resourceName] == MinResourcePercentage {
+					nodeThresholdsMap[node.Name].lowResourceThreshold[resourceName] = &cap
+					nodeThresholdsMap[node.Name].highResourceThreshold[resourceName] = &cap
+				} else {
+					nodeThresholdsMap[node.Name].lowResourceThreshold[resourceName] = resourceThreshold(nodeCapacity, resourceName, normalizePercentage(averageResourceUsagePercent[resourceName]-lowThreshold[resourceName]))
+					nodeThresholdsMap[node.Name].highResourceThreshold[resourceName] = resourceThreshold(nodeCapacity, resourceName, normalizePercentage(averageResourceUsagePercent[resourceName]+highThreshold[resourceName]))
+				}
+			} else {
+				nodeThresholdsMap[node.Name].lowResourceThreshold[resourceName] = resourceThreshold(nodeCapacity, resourceName, lowThreshold[resourceName])
+				nodeThresholdsMap[node.Name].highResourceThreshold[resourceName] = resourceThreshold(nodeCapacity, resourceName, highThreshold[resourceName])
+			}
+		}
+
 	}
-	return nil
+	return nodeThresholdsMap
 }
 
 func getNodeUsage(
 	nodes []*v1.Node,
-	lowThreshold, highThreshold api.ResourceThresholds,
 	resourceNames []v1.ResourceName,
 	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
 ) []NodeUsage {
@@ -92,48 +130,37 @@ func getNodeUsage(
 			continue
 		}
 
-		// A threshold is in percentages but in <0;100> interval.
-		// Performing `threshold * 0.01` will convert <0;100> interval into <0;1>.
-		// Multiplying it with capacity will give fraction of the capacity corresponding to the given high/low resource threshold in Quantity units.
-		nodeCapacity := node.Status.Capacity
-		if len(node.Status.Allocatable) > 0 {
-			nodeCapacity = node.Status.Allocatable
-		}
-		lowResourceThreshold := map[v1.ResourceName]*resource.Quantity{
-			v1.ResourceCPU:    resource.NewMilliQuantity(int64(float64(lowThreshold[v1.ResourceCPU])*float64(nodeCapacity.Cpu().MilliValue())*0.01), resource.DecimalSI),
-			v1.ResourceMemory: resource.NewQuantity(int64(float64(lowThreshold[v1.ResourceMemory])*float64(nodeCapacity.Memory().Value())*0.01), resource.BinarySI),
-			v1.ResourcePods:   resource.NewQuantity(int64(float64(lowThreshold[v1.ResourcePods])*float64(nodeCapacity.Pods().Value())*0.01), resource.DecimalSI),
-		}
-		for _, name := range resourceNames {
-			if !isBasicResource(name) {
-				cap := nodeCapacity[name]
-				lowResourceThreshold[name] = resource.NewQuantity(int64(float64(lowThreshold[name])*float64(cap.Value())*0.01), resource.DecimalSI)
-			}
-		}
-		highResourceThreshold := map[v1.ResourceName]*resource.Quantity{
-			v1.ResourceCPU:    resource.NewMilliQuantity(int64(float64(highThreshold[v1.ResourceCPU])*float64(nodeCapacity.Cpu().MilliValue())*0.01), resource.DecimalSI),
-			v1.ResourceMemory: resource.NewQuantity(int64(float64(highThreshold[v1.ResourceMemory])*float64(nodeCapacity.Memory().Value())*0.01), resource.BinarySI),
-			v1.ResourcePods:   resource.NewQuantity(int64(float64(highThreshold[v1.ResourcePods])*float64(nodeCapacity.Pods().Value())*0.01), resource.DecimalSI),
-		}
-		for _, name := range resourceNames {
-			if !isBasicResource(name) {
-				cap := nodeCapacity[name]
-				highResourceThreshold[name] = resource.NewQuantity(int64(float64(highThreshold[name])*float64(cap.Value())*0.01), resource.DecimalSI)
-			}
-		}
-
 		nodeUsageList = append(nodeUsageList, NodeUsage{
-			node:                  node,
-			usage:                 nodeUtilization(node, pods, resourceNames),
-			allPods:               pods,
-			lowResourceThreshold:  lowResourceThreshold,
-			highResourceThreshold: highResourceThreshold,
+			node:    node,
+			usage:   nodeutil.NodeUtilization(pods, resourceNames),
+			allPods: pods,
 		})
 	}
 
 	return nodeUsageList
 }
 
+func resourceThreshold(nodeCapacity v1.ResourceList, resourceName v1.ResourceName, threshold api.Percentage) *resource.Quantity {
+	defaultFormat := resource.DecimalSI
+	if resourceName == v1.ResourceMemory {
+		defaultFormat = resource.BinarySI
+	}
+
+	resourceCapacityFraction := func(resourceNodeCapacity int64) int64 {
+		// A threshold is in percentages but in <0;100> interval.
+		// Performing `threshold * 0.01` will convert <0;100> interval into <0;1>.
+		// Multiplying it with capacity will give fraction of the capacity corresponding to the given resource threshold in Quantity units.
+		return int64(float64(threshold) * 0.01 * float64(resourceNodeCapacity))
+	}
+
+	resourceCapacityQuantity := nodeCapacity.Name(resourceName, defaultFormat)
+
+	if resourceName == v1.ResourceCPU {
+		return resource.NewMilliQuantity(resourceCapacityFraction(resourceCapacityQuantity.MilliValue()), defaultFormat)
+	}
+	return resource.NewQuantity(resourceCapacityFraction(resourceCapacityQuantity.Value()), defaultFormat)
+}
+
 func resourceUsagePercentages(nodeUsage NodeUsage) map[v1.ResourceName]float64 {
 	nodeCapacity := nodeUsage.node.Status.Capacity
 	if len(nodeUsage.node.Status.Allocatable) > 0 {
@@ -155,19 +182,24 @@ func resourceUsagePercentages(nodeUsage NodeUsage) map[v1.ResourceName]float64 {
 // low and high thresholds, it is simply ignored.
 func classifyNodes(
 	nodeUsages []NodeUsage,
-	lowThresholdFilter, highThresholdFilter func(node *v1.Node, usage NodeUsage) bool,
-) ([]NodeUsage, []NodeUsage) {
-	lowNodes, highNodes := []NodeUsage{}, []NodeUsage{}
+	nodeThresholds map[string]NodeThresholds,
+	lowThresholdFilter, highThresholdFilter func(node *v1.Node, usage NodeUsage, threshold NodeThresholds) bool,
+) ([]NodeInfo, []NodeInfo) {
+	lowNodes, highNodes := []NodeInfo{}, []NodeInfo{}
 
 	for _, nodeUsage := range nodeUsages {
-		if lowThresholdFilter(nodeUsage.node, nodeUsage) {
-			klog.V(2).InfoS("Node is underutilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
-			lowNodes = append(lowNodes, nodeUsage)
-		} else if highThresholdFilter(nodeUsage.node, nodeUsage) {
-			klog.V(2).InfoS("Node is overutilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
-			highNodes = append(highNodes, nodeUsage)
+		nodeInfo := NodeInfo{
+			NodeUsage:  nodeUsage,
+			thresholds: nodeThresholds[nodeUsage.node.Name],
+		}
+		if lowThresholdFilter(nodeUsage.node, nodeUsage, nodeThresholds[nodeUsage.node.Name]) {
+			klog.InfoS("Node is underutilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
+			lowNodes = append(lowNodes, nodeInfo)
+		} else if highThresholdFilter(nodeUsage.node, nodeUsage, nodeThresholds[nodeUsage.node.Name]) {
+			klog.InfoS("Node is overutilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
+			highNodes = append(highNodes, nodeInfo)
 		} else {
-			klog.V(2).InfoS("Node is appropriately utilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
+			klog.InfoS("Node is appropriately utilized", "node", klog.KObj(nodeUsage.node), "usage", nodeUsage.usage, "usagePercentage", resourceUsagePercentages(nodeUsage))
 		}
 	}
 
@@ -179,16 +211,12 @@ func classifyNodes(
 // TODO: @ravig Break this function into smaller functions.
 func evictPodsFromSourceNodes(
 	ctx context.Context,
-	sourceNodes, destinationNodes []NodeUsage,
-	podEvictor *evictions.PodEvictor,
+	sourceNodes, destinationNodes []NodeInfo,
+	podEvictor framework.Evictor,
 	podFilter func(pod *v1.Pod) bool,
 	resourceNames []v1.ResourceName,
-	strategy string,
 	continueEviction continueEvictionCond,
 ) {
-
-	sortNodesByUsage(sourceNodes)
-
 	// upper bound on total number of pods/cpu/memory and optional extended resources to be moved
 	totalAvailableUsage := map[v1.ResourceName]*resource.Quantity{
 		v1.ResourcePods:   {},
@@ -204,7 +232,7 @@ func evictPodsFromSourceNodes(
 			if _, ok := totalAvailableUsage[name]; !ok {
 				totalAvailableUsage[name] = resource.NewQuantity(0, resource.DecimalSI)
 			}
-			totalAvailableUsage[name].Add(*node.highResourceThreshold[name])
+			totalAvailableUsage[name].Add(*node.thresholds.highResourceThreshold[name])
 			totalAvailableUsage[name].Sub(*node.usage[name])
 		}
 	}
@@ -216,7 +244,7 @@ func evictPodsFromSourceNodes(
 		"Pods", totalAvailableUsage[v1.ResourcePods].Value(),
 	}
 	for name := range totalAvailableUsage {
-		if !isBasicResource(name) {
+		if !node.IsBasicResource(name) {
 			keysAndValues = append(keysAndValues, string(name), totalAvailableUsage[name].Value())
 		}
 	}
@@ -236,96 +264,97 @@ func evictPodsFromSourceNodes(
 		klog.V(1).InfoS("Evicting pods based on priority, if they have same priority, they'll be evicted based on QoS tiers")
 		// sort the evictable Pods based on priority. This also sorts them based on QoS. If there are multiple pods with same priority, they are sorted based on QoS tiers.
 		podutil.SortPodsBasedOnPriorityLowToHigh(removablePods)
-		evictPods(ctx, removablePods, node, totalAvailableUsage, taintsOfDestinationNodes, podEvictor, strategy, continueEviction)
-		klog.V(1).InfoS("Evicted pods from node", "node", klog.KObj(node.node), "evictedPods", podEvictor.NodeEvicted(node.node), "usage", node.usage)
+		evictPods(ctx, removablePods, node, totalAvailableUsage, taintsOfDestinationNodes, podEvictor, continueEviction)
+
 	}
 }
 
 func evictPods(
 	ctx context.Context,
 	inputPods []*v1.Pod,
-	nodeUsage NodeUsage,
+	nodeInfo NodeInfo,
 	totalAvailableUsage map[v1.ResourceName]*resource.Quantity,
 	taintsOfLowNodes map[string][]v1.Taint,
-	podEvictor *evictions.PodEvictor,
-	strategy string,
+	podEvictor framework.Evictor,
 	continueEviction continueEvictionCond,
 ) {
 
-	if continueEviction(nodeUsage, totalAvailableUsage) {
+	if continueEviction(nodeInfo, totalAvailableUsage) {
 		for _, pod := range inputPods {
 			if !utils.PodToleratesTaints(pod, taintsOfLowNodes) {
 				klog.V(3).InfoS("Skipping eviction for pod, doesn't tolerate node taint", "pod", klog.KObj(pod))
 				continue
 			}
 
-			success, err := podEvictor.EvictPod(ctx, pod, nodeUsage.node, strategy)
-			if err != nil {
-				klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod))
-				break
-			}
-
-			if success {
-				klog.V(3).InfoS("Evicted pods", "pod", klog.KObj(pod), "err", err)
+			if podEvictor.Evict(ctx, pod, evictions.EvictOptions{}) {
+				klog.V(3).InfoS("Evicted pods", "pod", klog.KObj(pod))
 
 				for name := range totalAvailableUsage {
 					if name == v1.ResourcePods {
-						nodeUsage.usage[name].Sub(*resource.NewQuantity(1, resource.DecimalSI))
+						nodeInfo.usage[name].Sub(*resource.NewQuantity(1, resource.DecimalSI))
 						totalAvailableUsage[name].Sub(*resource.NewQuantity(1, resource.DecimalSI))
 					} else {
 						quantity := utils.GetResourceRequestQuantity(pod, name)
-						nodeUsage.usage[name].Sub(quantity)
+						nodeInfo.usage[name].Sub(quantity)
 						totalAvailableUsage[name].Sub(quantity)
 					}
 				}
 
 				keysAndValues := []interface{}{
-					"node", nodeUsage.node.Name,
-					"CPU", nodeUsage.usage[v1.ResourceCPU].MilliValue(),
-					"Mem", nodeUsage.usage[v1.ResourceMemory].Value(),
-					"Pods", nodeUsage.usage[v1.ResourcePods].Value(),
+					"node", nodeInfo.node.Name,
+					"CPU", nodeInfo.usage[v1.ResourceCPU].MilliValue(),
+					"Mem", nodeInfo.usage[v1.ResourceMemory].Value(),
+					"Pods", nodeInfo.usage[v1.ResourcePods].Value(),
 				}
 				for name := range totalAvailableUsage {
-					if !isBasicResource(name) {
+					if !nodeutil.IsBasicResource(name) {
 						keysAndValues = append(keysAndValues, string(name), totalAvailableUsage[name].Value())
 					}
 				}
 
 				klog.V(3).InfoS("Updated node usage", keysAndValues...)
 				// check if pods can be still evicted
-				if !continueEviction(nodeUsage, totalAvailableUsage) {
+				if !continueEviction(nodeInfo, totalAvailableUsage) {
 					break
 				}
 			}
+			if podEvictor.NodeLimitExceeded(nodeInfo.node) {
+				return
+			}
 		}
 	}
 }
 
-// sortNodesByUsage sorts nodes based on usage in descending order
-func sortNodesByUsage(nodes []NodeUsage) {
+// sortNodesByUsage sorts nodes based on usage according to the given plugin.
+func sortNodesByUsage(nodes []NodeInfo, ascending bool) {
 	sort.Slice(nodes, func(i, j int) bool {
 		ti := nodes[i].usage[v1.ResourceMemory].Value() + nodes[i].usage[v1.ResourceCPU].MilliValue() + nodes[i].usage[v1.ResourcePods].Value()
 		tj := nodes[j].usage[v1.ResourceMemory].Value() + nodes[j].usage[v1.ResourceCPU].MilliValue() + nodes[j].usage[v1.ResourcePods].Value()
 
 		// extended resources
 		for name := range nodes[i].usage {
-			if !isBasicResource(name) {
+			if !nodeutil.IsBasicResource(name) {
 				ti = ti + nodes[i].usage[name].Value()
 				tj = tj + nodes[j].usage[name].Value()
 			}
 		}
 
-		// To return sorted in descending order
+		// Return ascending order for HighNodeUtilization plugin
+		if ascending {
+			return ti < tj
+		}
+
+		// Return descending order for LowNodeUtilization plugin
 		return ti > tj
 	})
 }
 
 // isNodeAboveTargetUtilization checks if a node is overutilized
 // At least one resource has to be above the high threshold
-func isNodeAboveTargetUtilization(usage NodeUsage) bool {
+func isNodeAboveTargetUtilization(usage NodeUsage, threshold map[v1.ResourceName]*resource.Quantity) bool {
 	for name, nodeValue := range usage.usage {
 		// usage.highResourceThreshold[name] < nodeValue
-		if usage.highResourceThreshold[name].Cmp(*nodeValue) == -1 {
+		if threshold[name].Cmp(*nodeValue) == -1 {
 			return true
 		}
 	}
@@ -334,10 +363,10 @@ func isNodeAboveTargetUtilization(usage NodeUsage) bool {
 
 // isNodeWithLowUtilization checks if a node is underutilized
 // All resources have to be below the low threshold
-func isNodeWithLowUtilization(usage NodeUsage) bool {
+func isNodeWithLowUtilization(usage NodeUsage, threshold map[v1.ResourceName]*resource.Quantity) bool {
 	for name, nodeValue := range usage.usage {
 		// usage.lowResourceThreshold[name] < nodeValue
-		if usage.lowResourceThreshold[name].Cmp(*nodeValue) == -1 {
+		if threshold[name].Cmp(*nodeValue) == -1 {
 			return false
 		}
 	}
@@ -354,43 +383,6 @@ func getResourceNames(thresholds api.ResourceThresholds) []v1.ResourceName {
 	return resourceNames
 }
 
-// isBasicResource checks if resource is basic native.
-func isBasicResource(name v1.ResourceName) bool {
-	switch name {
-	case v1.ResourceCPU, v1.ResourceMemory, v1.ResourcePods:
-		return true
-	default:
-		return false
-	}
-}
-
-func nodeUtilization(node *v1.Node, pods []*v1.Pod, resourceNames []v1.ResourceName) map[v1.ResourceName]*resource.Quantity {
-	totalReqs := map[v1.ResourceName]*resource.Quantity{
-		v1.ResourceCPU:    resource.NewMilliQuantity(0, resource.DecimalSI),
-		v1.ResourceMemory: resource.NewQuantity(0, resource.BinarySI),
-		v1.ResourcePods:   resource.NewQuantity(int64(len(pods)), resource.DecimalSI),
-	}
-	for _, name := range resourceNames {
-		if !isBasicResource(name) {
-			totalReqs[name] = resource.NewQuantity(0, resource.DecimalSI)
-		}
-	}
-
-	for _, pod := range pods {
-		req, _ := utils.PodRequestsAndLimits(pod)
-		for _, name := range resourceNames {
-			quantity, ok := req[name]
-			if ok && name != v1.ResourcePods {
-				// As Quantity.Add says: Add adds the provided y quantity to the current value. If the current value is zero,
-				// the format of the quantity will be updated to the format of y.
-				totalReqs[name].Add(quantity)
-			}
-		}
-	}
-
-	return totalReqs
-}
-
 func classifyPods(pods []*v1.Pod, filter func(pod *v1.Pod) bool) ([]*v1.Pod, []*v1.Pod) {
 	var nonRemovablePods, removablePods []*v1.Pod
 
@@ -404,3 +396,34 @@ func classifyPods(pods []*v1.Pod, filter func(pod *v1.Pod) bool) ([]*v1.Pod, []*
 
 	return nonRemovablePods, removablePods
 }
+
+func averageNodeBasicresources(nodes []*v1.Node, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc, resourceNames []v1.ResourceName) api.ResourceThresholds {
+	total := api.ResourceThresholds{}
+	average := api.ResourceThresholds{}
+	numberOfNodes := len(nodes)
+	for _, node := range nodes {
+		pods, err := podutil.ListPodsOnANode(node.Name, getPodsAssignedToNode, nil)
+		if err != nil {
+			numberOfNodes--
+			continue
+		}
+		usage := nodeutil.NodeUtilization(pods, resourceNames)
+		nodeCapacity := node.Status.Capacity
+		if len(node.Status.Allocatable) > 0 {
+			nodeCapacity = node.Status.Allocatable
+		}
+		for resource, value := range usage {
+			nodeCapacityValue := nodeCapacity[resource]
+			if resource == v1.ResourceCPU {
+				total[resource] += api.Percentage(value.MilliValue()) / api.Percentage(nodeCapacityValue.MilliValue()) * 100.0
+			} else {
+				total[resource] += api.Percentage(value.Value()) / api.Percentage(nodeCapacityValue.Value()) * 100.0
+
+			}
+		}
+	}
+	for resource, value := range total {
+		average[resource] = value / api.Percentage(numberOfNodes)
+	}
+	return average
+}

pkg/framework/plugins/nodeutilization/nodeutilization_test.go

@@ -0,0 +1,166 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package nodeutilization
+
+import (
+	"math"
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+var (
+	lowPriority      = int32(0)
+	highPriority     = int32(10000)
+	extendedResource = v1.ResourceName("example.com/foo")
+	testNode1        = NodeInfo{
+		NodeUsage: NodeUsage{
+			node: &v1.Node{
+				Status: v1.NodeStatus{
+					Capacity: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(2000, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+					Allocatable: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(1930, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+				},
+				ObjectMeta: metav1.ObjectMeta{Name: "node1"},
+			},
+			usage: map[v1.ResourceName]*resource.Quantity{
+				v1.ResourceCPU:    resource.NewMilliQuantity(1730, resource.DecimalSI),
+				v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
+				v1.ResourcePods:   resource.NewQuantity(25, resource.BinarySI),
+			},
+		},
+	}
+	testNode2 = NodeInfo{
+		NodeUsage: NodeUsage{
+			node: &v1.Node{
+				Status: v1.NodeStatus{
+					Capacity: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(2000, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+					Allocatable: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(1930, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+				},
+				ObjectMeta: metav1.ObjectMeta{Name: "node2"},
+			},
+			usage: map[v1.ResourceName]*resource.Quantity{
+				v1.ResourceCPU:    resource.NewMilliQuantity(1220, resource.DecimalSI),
+				v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
+				v1.ResourcePods:   resource.NewQuantity(11, resource.BinarySI),
+			},
+		},
+	}
+	testNode3 = NodeInfo{
+		NodeUsage: NodeUsage{
+			node: &v1.Node{
+				Status: v1.NodeStatus{
+					Capacity: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(2000, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+					Allocatable: v1.ResourceList{
+						v1.ResourceCPU:    *resource.NewMilliQuantity(1930, resource.DecimalSI),
+						v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
+						v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+					},
+				},
+				ObjectMeta: metav1.ObjectMeta{Name: "node3"},
+			},
+			usage: map[v1.ResourceName]*resource.Quantity{
+				v1.ResourceCPU:    resource.NewMilliQuantity(1530, resource.DecimalSI),
+				v1.ResourceMemory: resource.NewQuantity(5038982964, resource.BinarySI),
+				v1.ResourcePods:   resource.NewQuantity(20, resource.BinarySI),
+			},
+		},
+	}
+)
+
+func TestResourceUsagePercentages(t *testing.T) {
+	resourceUsagePercentage := resourceUsagePercentages(NodeUsage{
+		node: &v1.Node{
+			Status: v1.NodeStatus{
+				Capacity: v1.ResourceList{
+					v1.ResourceCPU:    *resource.NewMilliQuantity(2000, resource.DecimalSI),
+					v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
+					v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+				},
+				Allocatable: v1.ResourceList{
+					v1.ResourceCPU:    *resource.NewMilliQuantity(1930, resource.DecimalSI),
+					v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
+					v1.ResourcePods:   *resource.NewQuantity(29, resource.BinarySI),
+				},
+			},
+		},
+		usage: map[v1.ResourceName]*resource.Quantity{
+			v1.ResourceCPU:    resource.NewMilliQuantity(1220, resource.DecimalSI),
+			v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
+			v1.ResourcePods:   resource.NewQuantity(11, resource.BinarySI),
+		},
+	})
+
+	expectedUsageInIntPercentage := map[v1.ResourceName]float64{
+		v1.ResourceCPU:    63,
+		v1.ResourceMemory: 90,
+		v1.ResourcePods:   37,
+	}
+
+	for resourceName, percentage := range expectedUsageInIntPercentage {
+		if math.Floor(resourceUsagePercentage[resourceName]) != percentage {
+			t.Errorf("Incorrect percentange computation, expected %v, got math.Floor(%v) instead", percentage, resourceUsagePercentage[resourceName])
+		}
+	}
+
+	t.Logf("resourceUsagePercentage: %#v\n", resourceUsagePercentage)
+}
+
+func TestSortNodesByUsageDescendingOrder(t *testing.T) {
+	nodeList := []NodeInfo{testNode1, testNode2, testNode3}
+	expectedNodeList := []NodeInfo{testNode3, testNode1, testNode2} // testNode3 has the highest usage
+	sortNodesByUsage(nodeList, false)                               // ascending=false, sort nodes in descending order
+
+	for i := 0; i < len(expectedNodeList); i++ {
+		if nodeList[i].NodeUsage.node.Name != expectedNodeList[i].NodeUsage.node.Name {
+			t.Errorf("Expected %v, got %v", expectedNodeList[i].NodeUsage.node.Name, nodeList[i].NodeUsage.node.Name)
+		}
+	}
+}
+
+func TestSortNodesByUsageAscendingOrder(t *testing.T) {
+	nodeList := []NodeInfo{testNode1, testNode2, testNode3}
+	expectedNodeList := []NodeInfo{testNode2, testNode1, testNode3}
+	sortNodesByUsage(nodeList, true) // ascending=true, sort nodes in ascending order
+
+	for i := 0; i < len(expectedNodeList); i++ {
+		if nodeList[i].NodeUsage.node.Name != expectedNodeList[i].NodeUsage.node.Name {
+			t.Errorf("Expected %v, got %v", expectedNodeList[i].NodeUsage.node.Name, nodeList[i].NodeUsage.node.Name)
+		}
+	}
+}

pkg/framework/plugins/podlifetime/pod_lifetime.go

@@ -0,0 +1,133 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package podlifetime
+
+import (
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
+
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+)
+
+const PluginName = "PodLifeTime"
+
+var _ framework.DeschedulePlugin = &PodLifeTime{}
+
+// PodLifeTime evicts pods on the node that violate the max pod lifetime threshold
+type PodLifeTime struct {
+	handle    framework.Handle
+	args      *componentconfig.PodLifeTimeArgs
+	podFilter podutil.FilterFunc
+}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	podLifeTimeArgs, ok := args.(*componentconfig.PodLifeTimeArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type PodLifeTimeArgs, got %T", args)
+	}
+
+	var includedNamespaces, excludedNamespaces sets.String
+	if podLifeTimeArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(podLifeTimeArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(podLifeTimeArgs.Namespaces.Exclude...)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		WithLabelSelector(podLifeTimeArgs.LabelSelector).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	podFilter = podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
+		podAgeSeconds := uint(metav1.Now().Sub(pod.GetCreationTimestamp().Local()).Seconds())
+		return podAgeSeconds > *podLifeTimeArgs.MaxPodLifeTimeSeconds
+	})
+
+	if len(podLifeTimeArgs.States) > 0 {
+		states := sets.NewString(podLifeTimeArgs.States...)
+		podFilter = podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
+			if states.Has(string(pod.Status.Phase)) {
+				return true
+			}
+
+			for _, containerStatus := range pod.Status.ContainerStatuses {
+				if containerStatus.State.Waiting != nil && states.Has(containerStatus.State.Waiting.Reason) {
+					return true
+				}
+			}
+
+			return false
+		})
+	}
+
+	return &PodLifeTime{
+		handle:    handle,
+		podFilter: podFilter,
+		args:      podLifeTimeArgs,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *PodLifeTime) Name() string {
+	return PluginName
+}
+
+// Deschedule extension point implementation for the plugin
+func (d *PodLifeTime) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	podsToEvict := make([]*v1.Pod, 0)
+	nodeMap := make(map[string]*v1.Node, len(nodes))
+
+	for _, node := range nodes {
+		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
+		pods, err := podutil.ListAllPodsOnANode(node.Name, d.handle.GetPodsAssignedToNodeFunc(), d.podFilter)
+		if err != nil {
+			// no pods evicted as error encountered retrieving evictable Pods
+			return &framework.Status{
+				Err: fmt.Errorf("error listing pods on a node: %v", err),
+			}
+		}
+
+		nodeMap[node.Name] = node
+		podsToEvict = append(podsToEvict, pods...)
+	}
+
+	// Should sort Pods so that the oldest can be evicted first
+	// in the event that PDB or settings such maxNoOfPodsToEvictPer* prevent too much eviction
+	podutil.SortPodsBasedOnAge(podsToEvict)
+
+	for _, pod := range podsToEvict {
+		if !d.handle.Evictor().NodeLimitExceeded(nodeMap[pod.Spec.NodeName]) {
+			d.handle.Evictor().Evict(ctx, pod, evictions.EvictOptions{})
+		}
+	}
+
+	return nil
+}

pkg/framework/plugins/podlifetime/pod_lifetime_test.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package podlifetime
 
 import (
 	"context"
@@ -27,10 +27,13 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
-
-	"sigs.k8s.io/descheduler/pkg/api"
+	"k8s.io/client-go/tools/events"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/test"
 )
 
@@ -139,20 +142,19 @@ func TestPodLifeTime(t *testing.T) {
 
 	var maxLifeTime uint = 600
 	testCases := []struct {
-		description             string
-		strategy                api.DeschedulerStrategy
-		pods                    []*v1.Pod
-		nodes                   []*v1.Node
-		expectedEvictedPodCount uint
-		ignorePvcPods           bool
+		description                string
+		args                       *componentconfig.PodLifeTimeArgs
+		pods                       []*v1.Pod
+		nodes                      []*v1.Node
+		expectedEvictedPodCount    uint
+		ignorePvcPods              bool
+		maxPodsToEvictPerNode      *uint
+		maxPodsToEvictPerNamespace *uint
 	}{
 		{
 			description: "Two pods in the `dev` Namespace, 1 is new and 1 very is old. 1 should be evicted.",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p1, p2},
 			nodes:                   []*v1.Node{node1},
@@ -160,11 +162,8 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "Two pods in the `dev` Namespace, 2 are new and 0 are old. 0 should be evicted.",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p3, p4},
 			nodes:                   []*v1.Node{node1},
@@ -172,11 +171,8 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "Two pods in the `dev` Namespace, 1 created 605 seconds ago. 1 should be evicted.",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p5, p6},
 			nodes:                   []*v1.Node{node1},
@@ -184,26 +180,64 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "Two pods in the `dev` Namespace, 1 created 595 seconds ago. 0 should be evicted.",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p7, p8},
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 0,
 		},
 		{
-			description: "Two old pods with different status phases. 1 should be evicted.",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{
-						MaxPodLifeTimeSeconds: &maxLifeTime,
-						PodStatusPhases:       []string{"Pending"},
-					},
-				},
+			description: "Two pods, one with ContainerCreating state. 1 should be evicted.",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+				States:                []string{"ContainerCreating"},
+			},
+			pods: []*v1.Pod{
+				p9,
+				test.BuildTestPod("container-creating-stuck", 0, 0, node1.Name, func(pod *v1.Pod) {
+					pod.Status.ContainerStatuses = []v1.ContainerStatus{
+						{
+							State: v1.ContainerState{
+								Waiting: &v1.ContainerStateWaiting{Reason: "ContainerCreating"},
+							},
+						},
+					}
+					pod.OwnerReferences = ownerRef1
+					pod.ObjectMeta.CreationTimestamp = olderPodCreationTime
+				}),
+			},
+			nodes:                   []*v1.Node{node1},
+			expectedEvictedPodCount: 1,
+		},
+		{
+			description: "Two pods, one with PodInitializing state. 1 should be evicted.",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+				States:                []string{"PodInitializing"},
+			},
+			pods: []*v1.Pod{
+				p9,
+				test.BuildTestPod("pod-initializing-stuck", 0, 0, node1.Name, func(pod *v1.Pod) {
+					pod.Status.ContainerStatuses = []v1.ContainerStatus{
+						{
+							State: v1.ContainerState{
+								Waiting: &v1.ContainerStateWaiting{Reason: "PodInitializing"},
+							},
+						},
+					}
+					pod.OwnerReferences = ownerRef1
+					pod.ObjectMeta.CreationTimestamp = olderPodCreationTime
+				}),
+			},
+			nodes:                   []*v1.Node{node1},
+			expectedEvictedPodCount: 1,
+		},
+		{
+			description: "Two old pods with different states. 1 should be evicted.",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+				States:                []string{"Pending"},
 			},
 			pods:                    []*v1.Pod{p9, p10},
 			nodes:                   []*v1.Node{node1},
@@ -211,11 +245,8 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "does not evict pvc pods with ignorePvcPods set to true",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p11},
 			nodes:                   []*v1.Node{node1},
@@ -224,11 +255,8 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "evicts pvc pods with ignorePvcPods set to false (or unset)",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-				},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
 			},
 			pods:                    []*v1.Pod{p11},
 			nodes:                   []*v1.Node{node1},
@@ -236,13 +264,10 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "No pod to evicted since all pod terminating",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-					LabelSelector: &metav1.LabelSelector{
-						MatchLabels: map[string]string{"foo": "bar"},
-					},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+				LabelSelector: &metav1.LabelSelector{
+					MatchLabels: map[string]string{"foo": "bar"},
 				},
 			},
 			pods:                    []*v1.Pod{p12, p13},
@@ -251,19 +276,47 @@ func TestPodLifeTime(t *testing.T) {
 		},
 		{
 			description: "No pod should be evicted since pod terminating",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					PodLifeTime: &api.PodLifeTime{MaxPodLifeTimeSeconds: &maxLifeTime},
-					LabelSelector: &metav1.LabelSelector{
-						MatchLabels: map[string]string{"foo": "bar"},
-					},
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+				LabelSelector: &metav1.LabelSelector{
+					MatchLabels: map[string]string{"foo": "bar"},
 				},
 			},
 			pods:                    []*v1.Pod{p14, p15},
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 0,
 		},
+		{
+			description: "2 Oldest pods should be evicted when maxPodsToEvictPerNode and maxPodsToEvictPerNamespace are not set",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+			},
+			pods:                       []*v1.Pod{p1, p2, p9},
+			nodes:                      []*v1.Node{node1},
+			expectedEvictedPodCount:    2,
+			maxPodsToEvictPerNode:      nil,
+			maxPodsToEvictPerNamespace: nil,
+		},
+		{
+			description: "1 Oldest pod should be evicted when maxPodsToEvictPerNamespace is set to 1",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+			},
+			pods:                       []*v1.Pod{p1, p2, p9},
+			nodes:                      []*v1.Node{node1},
+			maxPodsToEvictPerNamespace: func(i uint) *uint { return &i }(1),
+			expectedEvictedPodCount:    1,
+		},
+		{
+			description: "1 Oldest pod should be evicted when maxPodsToEvictPerNode is set to 1",
+			args: &componentconfig.PodLifeTimeArgs{
+				MaxPodLifeTimeSeconds: &maxLifeTime,
+			},
+			pods:                    []*v1.Pod{p1, p2, p9},
+			nodes:                   []*v1.Node{node1},
+			maxPodsToEvictPerNode:   func(i uint) *uint { return &i }(1),
+			expectedEvictedPodCount: 1,
+		},
 	}
 
 	for _, tc := range testCases {
@@ -291,21 +344,50 @@ func TestPodLifeTime(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
 				false,
-				nil,
-				nil,
+				tc.maxPodsToEvictPerNode,
+				tc.maxPodsToEvictPerNamespace,
 				tc.nodes,
 				false,
-				false,
-				tc.ignorePvcPods,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			PodLifeTime(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			defaultEvictorFilterArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           tc.ignorePvcPods,
+				EvictFailedBarePods:     false,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultEvictorFilterArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin, err := New(tc.args, &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+			})
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, tc.nodes)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != tc.expectedEvictedPodCount {
 				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", tc.description, tc.expectedEvictedPodCount, podsEvicted)

pkg/framework/plugins/removeduplicates/removeduplicates.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removeduplicates
 
 import (
 	"context"
@@ -24,91 +24,84 @@ import (
 	"sort"
 	"strings"
 
-	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/descheduler/pkg/utils"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/sets"
-	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/klog/v2"
 
-	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/pkg/framework"
 )
 
-func validateRemoveDuplicatePodsParams(params *api.StrategyParameters) error {
-	if params == nil {
-		return nil
-	}
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
+const PluginName = "RemoveDuplicates"
 
-	return nil
+// RemoveDuplicatePods removes the duplicate pods on node. This plugin evicts all duplicate pods on node.
+// A pod is said to be a duplicate of other if both of them are from same creator, kind and are within the same
+// namespace, and have at least one container with the same image.
+// As of now, this plugin won't evict daemonsets, mirror pods, critical pods and pods with local storages.
+
+type RemoveDuplicates struct {
+	handle    framework.Handle
+	args      *componentconfig.RemoveDuplicatesArgs
+	podFilter podutil.FilterFunc
 }
 
+var _ framework.BalancePlugin = &RemoveDuplicates{}
+
 type podOwner struct {
 	namespace, kind, name string
 	imagesHash            string
 }
 
-// RemoveDuplicatePods removes the duplicate pods on node. This strategy evicts all duplicate pods on node.
-// A pod is said to be a duplicate of other if both of them are from same creator, kind and are within the same
-// namespace, and have at least one container with the same image.
-// As of now, this strategy won't evict daemonsets, mirror pods, critical pods and pods with local storages.
-func RemoveDuplicatePods(
-	ctx context.Context,
-	client clientset.Interface,
-	strategy api.DeschedulerStrategy,
-	nodes []*v1.Node,
-	podEvictor *evictions.PodEvictor,
-	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
-) {
-	if err := validateRemoveDuplicatePodsParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid RemoveDuplicatePods parameters")
-		return
-	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	removeDuplicatesArgs, ok := args.(*componentconfig.RemoveDuplicatesArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemoveDuplicatesArgs, got %T", args)
 	}
 
 	var includedNamespaces, excludedNamespaces sets.String
-	if strategy.Params != nil && strategy.Params.Namespaces != nil {
-		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
+	if removeDuplicatesArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(removeDuplicatesArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(removeDuplicatesArgs.Namespaces.Exclude...)
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
 	}
 
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
+	return &RemoveDuplicates{
+		handle:    handle,
+		args:      removeDuplicatesArgs,
+		podFilter: podFilter,
+	}, nil
+}
 
+// Name retrieves the plugin name
+func (r *RemoveDuplicates) Name() string {
+	return PluginName
+}
+
+// Balance extension point implementation for the plugin
+func (r *RemoveDuplicates) Balance(ctx context.Context, nodes []*v1.Node) *framework.Status {
 	duplicatePods := make(map[podOwner]map[string][]*v1.Pod)
 	ownerKeyOccurence := make(map[podOwner]int32)
 	nodeCount := 0
 	nodeMap := make(map[string]*v1.Node)
 
-	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
-		WithNamespaces(includedNamespaces).
-		WithoutNamespaces(excludedNamespaces).
-		BuildFilterFunc()
-	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
-	}
-
 	for _, node := range nodes {
 		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-		pods, err := podutil.ListPodsOnANode(node.Name, getPodsAssignedToNode, podFilter)
+		pods, err := podutil.ListPodsOnANode(node.Name, r.handle.GetPodsAssignedToNodeFunc(), r.podFilter)
 		if err != nil {
 			klog.ErrorS(err, "Error listing evictable pods on node", "node", klog.KObj(node))
 			continue
@@ -131,7 +124,8 @@ func RemoveDuplicatePods(
 		duplicateKeysMap := map[string][][]string{}
 		for _, pod := range pods {
 			ownerRefList := podutil.OwnerRef(pod)
-			if hasExcludedOwnerRefKind(ownerRefList, strategy) || len(ownerRefList) == 0 {
+
+			if len(ownerRefList) == 0 || hasExcludedOwnerRefKind(ownerRefList, r.args.ExcludeOwnerKinds) {
 				continue
 			}
 			podContainerKeys := make([]string, 0, len(ownerRefList)*len(pod.Spec.Containers))
@@ -194,6 +188,7 @@ func RemoveDuplicatePods(
 
 	// 1. how many pods can be evicted to respect uniform placement of pods among viable nodes?
 	for ownerKey, podNodes := range duplicatePods {
+
 		targetNodes := getTargetNodes(podNodes, nodes)
 
 		klog.V(2).InfoS("Adjusting feasible nodes", "owner", ownerKey, "from", nodeCount, "to", len(targetNodes))
@@ -203,6 +198,7 @@ func RemoveDuplicatePods(
 		}
 
 		upperAvg := int(math.Ceil(float64(ownerKeyOccurence[ownerKey]) / float64(len(targetNodes))))
+	loop:
 		for nodeName, pods := range podNodes {
 			klog.V(2).InfoS("Average occurrence per node", "node", klog.KObj(nodeMap[nodeName]), "ownerKey", ownerKey, "avg", upperAvg)
 			// list of duplicated pods does not contain the original referential pod
@@ -210,24 +206,15 @@ func RemoveDuplicatePods(
 				// It's assumed all duplicated pods are in the same priority class
 				// TODO(jchaloup): check if the pod has a different node to lend to
 				for _, pod := range pods[upperAvg-1:] {
-					if _, err := podEvictor.EvictPod(ctx, pod, nodeMap[nodeName], "RemoveDuplicatePods"); err != nil {
-						klog.ErrorS(err, "Error evicting pod", "pod", klog.KObj(pod))
-						break
+					r.handle.Evictor().Evict(ctx, pod, evictions.EvictOptions{})
+					if r.handle.Evictor().NodeLimitExceeded(nodeMap[nodeName]) {
+						continue loop
 					}
 				}
 			}
 		}
 	}
-}
-
-func getNodeAffinityNodeSelector(pod *v1.Pod) *v1.NodeSelector {
-	if pod.Spec.Affinity == nil {
-		return nil
-	}
-	if pod.Spec.Affinity.NodeAffinity == nil {
-		return nil
-	}
-	return pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution
+	return nil
 }
 
 func getTargetNodes(podNodes map[string][]*v1.Pod, nodes []*v1.Node) []*v1.Node {
@@ -287,15 +274,27 @@ func getTargetNodes(podNodes map[string][]*v1.Pod, nodes []*v1.Node) []*v1.Node
 	return targetNodes
 }
 
-func hasExcludedOwnerRefKind(ownerRefs []metav1.OwnerReference, strategy api.DeschedulerStrategy) bool {
-	if strategy.Params == nil || strategy.Params.RemoveDuplicates == nil {
+func hasExcludedOwnerRefKind(ownerRefs []metav1.OwnerReference, excludeOwnerKinds []string) bool {
+	if len(excludeOwnerKinds) == 0 {
 		return false
 	}
-	exclude := sets.NewString(strategy.Params.RemoveDuplicates.ExcludeOwnerKinds...)
+
+	exclude := sets.NewString(excludeOwnerKinds...)
 	for _, owner := range ownerRefs {
 		if exclude.Has(owner.Kind) {
 			return true
 		}
 	}
+
 	return false
 }
+
+func getNodeAffinityNodeSelector(pod *v1.Pod) *v1.NodeSelector {
+	if pod.Spec.Affinity == nil {
+		return nil
+	}
+	if pod.Spec.Affinity.NodeAffinity == nil {
+		return nil
+	}
+	return pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution
+}

pkg/framework/plugins/removeduplicates/removeduplicates_test.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2017 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,12 +14,18 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removeduplicates
 
 import (
 	"context"
 	"testing"
 
+	"k8s.io/client-go/tools/events"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
+
 	v1 "k8s.io/api/core/v1"
 	policyv1 "k8s.io/api/policy/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
@@ -28,7 +34,6 @@ import (
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
 
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	"sigs.k8s.io/descheduler/pkg/utils"
@@ -67,6 +72,7 @@ func TestFindDuplicatePods(t *testing.T) {
 			Unschedulable: true,
 		}
 	})
+	node6 := test.BuildTestNode("n6", 200, 200, 10, nil)
 
 	p1 := test.BuildTestPod("p1", 100, 0, node1.Name, nil)
 	p1.Namespace = "dev"
@@ -102,6 +108,14 @@ func TestFindDuplicatePods(t *testing.T) {
 	p18 := test.BuildTestPod("TARGET", 100, 0, node1.Name, nil)
 	p18.Namespace = "node-fit"
 
+	// This pod sits on node6 and is used to take up CPU requests on the node
+	p19 := test.BuildTestPod("CPU-eater", 150, 150, node6.Name, nil)
+	p19.Namespace = "test"
+
+	// Dummy pod for node6 used to do the opposite of p19
+	p20 := test.BuildTestPod("CPU-saver", 100, 150, node6.Name, nil)
+	p20.Namespace = "test"
+
 	// ### Evictable Pods ###
 
 	// Three Pods in the "default" Namespace, bound to same ReplicaSet. 2 should be evicted.
@@ -177,91 +191,98 @@ func TestFindDuplicatePods(t *testing.T) {
 		pods                    []*v1.Pod
 		nodes                   []*v1.Node
 		expectedEvictedPodCount uint
-		strategy                api.DeschedulerStrategy
+		excludeOwnerKinds       []string
+		nodefit                 bool
 	}{
 		{
 			description:             "Three pods in the `dev` Namespace, bound to same ReplicaSet. 1 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 1,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Three pods in the `dev` Namespace, bound to same ReplicaSet, but ReplicaSet kind is excluded. 0 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{Params: &api.StrategyParameters{RemoveDuplicates: &api.RemoveDuplicates{ExcludeOwnerKinds: []string{"ReplicaSet"}}}},
+			excludeOwnerKinds:       []string{"ReplicaSet"},
 		},
 		{
 			description:             "Three Pods in the `test` Namespace, bound to same ReplicaSet. 1 should be evicted.",
 			pods:                    []*v1.Pod{p8, p9, p10},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 1,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Three Pods in the `dev` Namespace, three Pods in the `test` Namespace. Bound to ReplicaSet with same name. 4 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3, p8, p9, p10},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 2,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Pods are: part of DaemonSet, with local storage, mirror pod annotation, critical pod annotation - none should be evicted.",
 			pods:                    []*v1.Pod{p4, p5, p6, p7},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Test all Pods: 4 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3, p4, p5, p6, p7, p8, p9, p10},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 2,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Pods with the same owner but different images should not be evicted",
 			pods:                    []*v1.Pod{p11, p12},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Pods with multiple containers should not match themselves",
 			pods:                    []*v1.Pod{p13},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Pods with matching ownerrefs and at not all matching image should not trigger an eviction",
 			pods:                    []*v1.Pod{p11, p13},
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{},
 		},
 		{
 			description:             "Three pods in the `dev` Namespace, bound to same ReplicaSet. Only node available has a taint, and nodeFit set to true. 0 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3},
 			nodes:                   []*v1.Node{node1, node3},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{Params: &api.StrategyParameters{NodeFit: true}},
+			nodefit:                 true,
 		},
 		{
 			description:             "Three pods in the `node-fit` Namespace, bound to same ReplicaSet, all with a nodeSelector. Only node available has an incorrect node label, and nodeFit set to true. 0 should be evicted.",
 			pods:                    []*v1.Pod{p15, p16, p17},
 			nodes:                   []*v1.Node{node1, node4},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{Params: &api.StrategyParameters{NodeFit: true}},
+			nodefit:                 true,
 		},
 		{
 			description:             "Three pods in the `node-fit` Namespace, bound to same ReplicaSet. Only node available is not schedulable, and nodeFit set to true. 0 should be evicted.",
 			pods:                    []*v1.Pod{p1, p2, p3},
 			nodes:                   []*v1.Node{node1, node5},
 			expectedEvictedPodCount: 0,
-			strategy:                api.DeschedulerStrategy{Params: &api.StrategyParameters{NodeFit: true}},
+			nodefit:                 true,
+		},
+		{
+			description:             "Three pods in the `node-fit` Namespace, bound to same ReplicaSet. Only node available does not have enough CPU, and nodeFit set to true. 0 should be evicted.",
+			pods:                    []*v1.Pod{p1, p2, p3, p19},
+			nodes:                   []*v1.Node{node1, node6},
+			expectedEvictedPodCount: 0,
+			nodefit:                 true,
+		},
+		{
+			description:             "Three pods in the `node-fit` Namespace, bound to same ReplicaSet. Only node available has enough CPU, and nodeFit set to true. 1 should be evicted.",
+			pods:                    []*v1.Pod{p1, p2, p3, p20},
+			nodes:                   []*v1.Node{node1, node6},
+			expectedEvictedPodCount: 1,
+			nodefit:                 true,
 		},
 	}
 
@@ -290,6 +311,8 @@ func TestFindDuplicatePods(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				"v1",
@@ -298,16 +321,49 @@ func TestFindDuplicatePods(t *testing.T) {
 				nil,
 				testCase.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
-			podsEvicted := podEvictor.TotalEvicted()
-			if podsEvicted != testCase.expectedEvictedPodCount {
-				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", testCase.description, testCase.expectedEvictedPodCount, podsEvicted)
+			nodeFit := testCase.nodefit
+
+			defaultEvictorFilterArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 nodeFit,
+			}
+
+			evictorFilter, _ := defaultevictor.New(
+				defaultEvictorFilterArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := New(&componentconfig.RemoveDuplicatesArgs{
+				ExcludeOwnerKinds: testCase.excludeOwnerKinds,
+			},
+				handle,
+			)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.BalancePlugin).Balance(ctx, testCase.nodes)
+			actualEvictedPodCount := podEvictor.TotalEvicted()
+			if actualEvictedPodCount != testCase.expectedEvictedPodCount {
+				t.Errorf("Test %#v failed, Unexpected no of pods evicted: pods evicted: %d, expected: %d", testCase.description, actualEvictedPodCount, testCase.expectedEvictedPodCount)
 			}
 		})
 	}
@@ -354,7 +410,7 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 		node.Spec.Taints = []v1.Taint{
 			{
 				Effect: v1.TaintEffectNoSchedule,
-				Key:    "node-role.kubernetes.io/master",
+				Key:    "node-role.kubernetes.io/control-plane",
 			},
 		}
 	}
@@ -363,7 +419,7 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 		if node.ObjectMeta.Labels == nil {
 			node.ObjectMeta.Labels = map[string]string{}
 		}
-		node.ObjectMeta.Labels["node-role.kubernetes.io/master"] = ""
+		node.ObjectMeta.Labels["node-role.kubernetes.io/control-plane"] = ""
 	}
 
 	setWorkerLabel := func(node *v1.Node) {
@@ -383,7 +439,7 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 						{
 							MatchExpressions: []v1.NodeSelectorRequirement{
 								{
-									Key:      "node-role.kubernetes.io/master",
+									Key:      "node-role.kubernetes.io/control-plane",
 									Operator: v1.NodeSelectorOpDoesNotExist,
 								},
 								{
@@ -407,7 +463,7 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 						{
 							MatchExpressions: []v1.NodeSelectorRequirement{
 								{
-									Key:      "node-role.kubernetes.io/master",
+									Key:      "node-role.kubernetes.io/control-plane",
 									Operator: v1.NodeSelectorOpDoesNotExist,
 								},
 								{
@@ -443,7 +499,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 		pods                    []*v1.Pod
 		nodes                   []*v1.Node
 		expectedEvictedPodCount uint
-		strategy                api.DeschedulerStrategy
 	}{
 		{
 			description: "Evict pods uniformly",
@@ -465,7 +520,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly with one node left out",
@@ -486,7 +540,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n1", 2000, 3000, 10, nil),
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly with two replica sets",
@@ -508,7 +561,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly with two owner references",
@@ -540,7 +592,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods with number of pods less than nodes",
@@ -555,7 +606,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods with number of pods less than nodes, but ignore different pods with the same ownerref",
@@ -574,7 +624,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods with a single pod with three nodes",
@@ -588,7 +637,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("n2", 2000, 3000, 10, nil),
 				test.BuildTestNode("n3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly respecting taints",
@@ -613,7 +661,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("master2", 2000, 3000, 10, setMasterNoScheduleTaint),
 				test.BuildTestNode("master3", 2000, 3000, 10, setMasterNoScheduleTaint),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly respecting RequiredDuringSchedulingIgnoredDuringExecution node affinity",
@@ -638,7 +685,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("master2", 2000, 3000, 10, setMasterNoScheduleLabel),
 				test.BuildTestNode("master3", 2000, 3000, 10, setMasterNoScheduleLabel),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly respecting node selector",
@@ -663,7 +709,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("master2", 2000, 3000, 10, nil),
 				test.BuildTestNode("master3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 		{
 			description: "Evict pods uniformly respecting node selector with zero target nodes",
@@ -688,7 +733,6 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				test.BuildTestNode("master2", 2000, 3000, 10, nil),
 				test.BuildTestNode("master3", 2000, 3000, 10, nil),
 			},
-			strategy: api.DeschedulerStrategy{},
 		},
 	}
 
@@ -717,6 +761,8 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -725,16 +771,48 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				nil,
 				testCase.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
-			podsEvicted := podEvictor.TotalEvicted()
-			if podsEvicted != testCase.expectedEvictedPodCount {
-				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", testCase.description, testCase.expectedEvictedPodCount, podsEvicted)
+			defaultEvictorFilterArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultEvictorFilterArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := New(&componentconfig.RemoveDuplicatesArgs{},
+				handle,
+			)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.BalancePlugin).Balance(ctx, testCase.nodes)
+			actualEvictedPodCount := podEvictor.TotalEvicted()
+			if actualEvictedPodCount != testCase.expectedEvictedPodCount {
+				t.Errorf("Test %#v failed, Unexpected no of pods evicted: pods evicted: %d, expected: %d", testCase.description, actualEvictedPodCount, testCase.expectedEvictedPodCount)
 			}
 		})
 	}

pkg/framework/plugins/removefailedpods/failedpods.go

@@ -0,0 +1,167 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removefailedpods
+
+import (
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+)
+
+const PluginName = "RemoveFailedPods"
+
+// RemoveFailedPods evicts pods in failed status phase that match the given args criteria
+type RemoveFailedPods struct {
+	handle    framework.Handle
+	args      *componentconfig.RemoveFailedPodsArgs
+	podFilter podutil.FilterFunc
+}
+
+var _ framework.DeschedulePlugin = &RemoveFailedPods{}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	failedPodsArgs, ok := args.(*componentconfig.RemoveFailedPodsArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemoveFailedPodsArgs, got %T", args)
+	}
+
+	var includedNamespaces, excludedNamespaces sets.String
+	if failedPodsArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(failedPodsArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(failedPodsArgs.Namespaces.Exclude...)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		WithLabelSelector(failedPodsArgs.LabelSelector).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	podFilter = podutil.WrapFilterFuncs(func(pod *v1.Pod) bool { return pod.Status.Phase == v1.PodFailed }, podFilter)
+
+	podFilter = podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
+		if err := validateCanEvict(pod, failedPodsArgs); err != nil {
+			klog.V(4).InfoS(fmt.Sprintf("ignoring pod for eviction due to: %s", err.Error()), "pod", klog.KObj(pod))
+			return false
+		}
+
+		return true
+	})
+
+	return &RemoveFailedPods{
+		handle:    handle,
+		podFilter: podFilter,
+		args:      failedPodsArgs,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *RemoveFailedPods) Name() string {
+	return PluginName
+}
+
+// Deschedule extension point implementation for the plugin
+func (d *RemoveFailedPods) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	for _, node := range nodes {
+		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
+		pods, err := podutil.ListAllPodsOnANode(node.Name, d.handle.GetPodsAssignedToNodeFunc(), d.podFilter)
+		if err != nil {
+			// no pods evicted as error encountered retrieving evictable Pods
+			return &framework.Status{
+				Err: fmt.Errorf("error listing pods on a node: %v", err),
+			}
+		}
+		totalPods := len(pods)
+		for i := 0; i < totalPods; i++ {
+			d.handle.Evictor().Evict(ctx, pods[i], evictions.EvictOptions{})
+			if d.handle.Evictor().NodeLimitExceeded(node) {
+				break
+			}
+		}
+	}
+	return nil
+}
+
+// validateCanEvict looks at failedPodArgs to see if pod can be evicted given the args.
+func validateCanEvict(pod *v1.Pod, failedPodArgs *componentconfig.RemoveFailedPodsArgs) error {
+	var errs []error
+
+	if failedPodArgs.MinPodLifetimeSeconds != nil {
+		podAgeSeconds := uint(metav1.Now().Sub(pod.GetCreationTimestamp().Local()).Seconds())
+		if podAgeSeconds < *failedPodArgs.MinPodLifetimeSeconds {
+			errs = append(errs, fmt.Errorf("pod does not exceed the min age seconds of %d", *failedPodArgs.MinPodLifetimeSeconds))
+		}
+	}
+
+	if len(failedPodArgs.ExcludeOwnerKinds) > 0 {
+		ownerRefList := podutil.OwnerRef(pod)
+		for _, owner := range ownerRefList {
+			if sets.NewString(failedPodArgs.ExcludeOwnerKinds...).Has(owner.Kind) {
+				errs = append(errs, fmt.Errorf("pod's owner kind of %s is excluded", owner.Kind))
+			}
+		}
+	}
+
+	if len(failedPodArgs.Reasons) > 0 {
+		reasons := getFailedContainerStatusReasons(pod.Status.ContainerStatuses)
+
+		if pod.Status.Phase == v1.PodFailed && pod.Status.Reason != "" {
+			reasons = append(reasons, pod.Status.Reason)
+		}
+
+		if failedPodArgs.IncludingInitContainers {
+			reasons = append(reasons, getFailedContainerStatusReasons(pod.Status.InitContainerStatuses)...)
+		}
+
+		if !sets.NewString(failedPodArgs.Reasons...).HasAny(reasons...) {
+			errs = append(errs, fmt.Errorf("pod does not match any of the reasons"))
+		}
+	}
+
+	return utilerrors.NewAggregate(errs)
+}
+
+func getFailedContainerStatusReasons(containerStatuses []v1.ContainerStatus) []string {
+	reasons := make([]string, 0)
+
+	for _, containerStatus := range containerStatuses {
+		if containerStatus.State.Waiting != nil && containerStatus.State.Waiting.Reason != "" {
+			reasons = append(reasons, containerStatus.State.Waiting.Reason)
+		}
+		if containerStatus.State.Terminated != nil && containerStatus.State.Terminated.Reason != "" {
+			reasons = append(reasons, containerStatus.State.Terminated.Reason)
+		}
+	}
+
+	return reasons
+}

pkg/framework/plugins/removefailedpods/failedpods_test.go

@@ -1,4 +1,20 @@
-package strategies
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removefailedpods
 
 import (
 	"context"
@@ -10,10 +26,14 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/events"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
 
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/test"
 )
 
@@ -22,45 +42,43 @@ var (
 )
 
 func TestRemoveFailedPods(t *testing.T) {
-	createStrategy := func(enabled, includingInitContainers bool, reasons, excludeKinds []string, minAgeSeconds *uint, nodeFit bool) api.DeschedulerStrategy {
-		return api.DeschedulerStrategy{
-			Enabled: enabled,
-			Params: &api.StrategyParameters{
-				FailedPods: &api.FailedPods{
-					Reasons:                 reasons,
-					IncludingInitContainers: includingInitContainers,
-					ExcludeOwnerKinds:       excludeKinds,
-					MinPodLifetimeSeconds:   minAgeSeconds,
-				},
-				NodeFit: nodeFit,
-			},
+	createRemoveFailedPodsArgs := func(
+		includingInitContainers bool,
+		reasons, excludeKinds []string,
+		minAgeSeconds *uint) componentconfig.RemoveFailedPodsArgs {
+		return componentconfig.RemoveFailedPodsArgs{
+			IncludingInitContainers: includingInitContainers,
+			Reasons:                 reasons,
+			MinPodLifetimeSeconds:   minAgeSeconds,
+			ExcludeOwnerKinds:       excludeKinds,
 		}
 	}
 
 	tests := []struct {
 		description             string
 		nodes                   []*v1.Node
-		strategy                api.DeschedulerStrategy
+		args                    componentconfig.RemoveFailedPodsArgs
 		expectedEvictedPodCount uint
 		pods                    []*v1.Pod
+		nodeFit                 bool
 	}{
 		{
-			description:             "default empty strategy, 0 failures, 0 evictions",
-			strategy:                api.DeschedulerStrategy{},
+			description:             "default empty args, 0 failures, 0 evictions",
+			args:                    componentconfig.RemoveFailedPodsArgs{},
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods:                    []*v1.Pod{}, // no pods come back with field selector phase=Failed
 		},
 		{
 			description:             "0 failures, 0 evictions",
-			strategy:                createStrategy(true, false, nil, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, nil, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods:                    []*v1.Pod{}, // no pods come back with field selector phase=Failed
 		},
 		{
 			description:             "1 container terminated with reason NodeAffinity, 1 eviction",
-			strategy:                createStrategy(true, false, nil, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, nil, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -71,7 +89,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "1 init container terminated with reason NodeAffinity, 1 eviction",
-			strategy:                createStrategy(true, true, nil, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(true, nil, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -82,7 +100,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "1 init container waiting with reason CreateContainerConfigError, 1 eviction",
-			strategy:                createStrategy(true, true, nil, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(true, nil, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -93,7 +111,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description: "2 init container waiting with reason CreateContainerConfigError, 2 nodes, 2 evictions",
-			strategy:    createStrategy(true, true, nil, nil, nil, false),
+			args:        createRemoveFailedPodsArgs(true, nil, nil, nil),
 			nodes: []*v1.Node{
 				test.BuildTestNode("node1", 2000, 3000, 10, nil),
 				test.BuildTestNode("node2", 2000, 3000, 10, nil),
@@ -110,7 +128,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "include reason=CreateContainerConfigError, 1 container terminated with reason CreateContainerConfigError, 1 eviction",
-			strategy:                createStrategy(true, false, []string{"CreateContainerConfigError"}, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, []string{"CreateContainerConfigError"}, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -121,7 +139,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "include reason=CreateContainerConfigError+NodeAffinity, 1 container terminated with reason CreateContainerConfigError, 1 eviction",
-			strategy:                createStrategy(true, false, []string{"CreateContainerConfigError", "NodeAffinity"}, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, []string{"CreateContainerConfigError", "NodeAffinity"}, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -132,7 +150,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "include reason=CreateContainerConfigError, 1 container terminated with reason NodeAffinity, 0 eviction",
-			strategy:                createStrategy(true, false, []string{"CreateContainerConfigError"}, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, []string{"CreateContainerConfigError"}, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
@@ -143,7 +161,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "include init container=false, 1 init container waiting with reason CreateContainerConfigError, 0 eviction",
-			strategy:                createStrategy(true, false, []string{"CreateContainerConfigError"}, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, []string{"CreateContainerConfigError"}, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
@@ -154,7 +172,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "lifetime 1 hour, 1 container terminated with reason NodeAffinity, 0 eviction",
-			strategy:                createStrategy(true, false, nil, nil, &OneHourInSeconds, false),
+			args:                    createRemoveFailedPodsArgs(false, nil, nil, &OneHourInSeconds),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
@@ -165,20 +183,36 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description: "nodeFit=true, 1 unschedulable node, 1 container terminated with reason NodeAffinity, 0 eviction",
-			strategy:    createStrategy(true, false, nil, nil, nil, true),
-			nodes: []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, func(node *v1.Node) {
-				node.Spec.Unschedulable = true
-			})},
+			args:        createRemoveFailedPodsArgs(false, nil, nil, nil),
+			nodes: []*v1.Node{
+				test.BuildTestNode("node1", 2000, 3000, 10, nil),
+				test.BuildTestNode("node2", 2000, 2000, 10, func(node *v1.Node) {
+					node.Spec.Unschedulable = true
+				}),
+			},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
 				buildTestPod("p1", "node1", newPodStatus("", "", nil, &v1.ContainerState{
 					Terminated: &v1.ContainerStateTerminated{Reason: "NodeAffinity"},
 				}), nil),
 			},
+			nodeFit: true,
+		},
+		{
+			description:             "nodeFit=true, only available node does not have enough resources, 1 container terminated with reason CreateContainerConfigError, 0 eviction",
+			args:                    createRemoveFailedPodsArgs(false, []string{"CreateContainerConfigError"}, nil, nil),
+			nodes:                   []*v1.Node{test.BuildTestNode("node1", 1, 1, 10, nil), test.BuildTestNode("node2", 0, 0, 10, nil)},
+			expectedEvictedPodCount: 0,
+			pods: []*v1.Pod{
+				buildTestPod("p1", "node1", newPodStatus("", "", nil, &v1.ContainerState{
+					Terminated: &v1.ContainerStateTerminated{Reason: "CreateContainerConfigError"},
+				}), nil),
+			},
+			nodeFit: true,
 		},
 		{
 			description:             "excluded owner kind=ReplicaSet, 1 init container terminated with owner kind=ReplicaSet, 0 eviction",
-			strategy:                createStrategy(true, true, nil, []string{"ReplicaSet"}, nil, false),
+			args:                    createRemoveFailedPodsArgs(true, nil, []string{"ReplicaSet"}, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
@@ -189,7 +223,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "excluded owner kind=DaemonSet, 1 init container terminated with owner kind=ReplicaSet, 1 eviction",
-			strategy:                createStrategy(true, true, nil, []string{"DaemonSet"}, nil, false),
+			args:                    createRemoveFailedPodsArgs(true, nil, []string{"DaemonSet"}, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 1,
 			pods: []*v1.Pod{
@@ -200,7 +234,7 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "excluded owner kind=DaemonSet, 1 init container terminated with owner kind=ReplicaSet, 1 pod in termination; nothing should be moved",
-			strategy:                createStrategy(true, true, nil, []string{"DaemonSet"}, nil, false),
+			args:                    createRemoveFailedPodsArgs(true, nil, []string{"DaemonSet"}, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
@@ -211,16 +245,17 @@ func TestRemoveFailedPods(t *testing.T) {
 		},
 		{
 			description:             "1 container terminated with reason ShutDown, 0 evictions",
-			strategy:                createStrategy(true, false, nil, nil, nil, true),
+			args:                    createRemoveFailedPodsArgs(false, nil, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods: []*v1.Pod{
 				buildTestPod("p1", "node1", newPodStatus("Shutdown", v1.PodFailed, nil, nil), nil),
 			},
+			nodeFit: true,
 		},
 		{
 			description:             "include reason=Shutdown, 2 containers terminated with reason ShutDown, 2 evictions",
-			strategy:                createStrategy(true, false, []string{"Shutdown"}, nil, nil, false),
+			args:                    createRemoveFailedPodsArgs(false, []string{"Shutdown"}, nil, nil),
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 2,
 			pods: []*v1.Pod{
@@ -254,6 +289,8 @@ func TestRemoveFailedPods(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -262,13 +299,51 @@ func TestRemoveFailedPods(t *testing.T) {
 				nil,
 				tc.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			RemoveFailedPods(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 tc.nodeFit,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin, err := New(&componentconfig.RemoveFailedPodsArgs{
+				Reasons:                 tc.args.Reasons,
+				MinPodLifetimeSeconds:   tc.args.MinPodLifetimeSeconds,
+				IncludingInitContainers: tc.args.IncludingInitContainers,
+				ExcludeOwnerKinds:       tc.args.ExcludeOwnerKinds,
+				LabelSelector:           tc.args.LabelSelector,
+				Namespaces:              tc.args.Namespaces,
+			},
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					PodEvictorImpl:                podEvictor,
+					EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				},
+			)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, tc.nodes)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)
@@ -277,42 +352,6 @@ func TestRemoveFailedPods(t *testing.T) {
 	}
 }
 
-func TestValidRemoveFailedPodsParams(t *testing.T) {
-	ctx := context.Background()
-	fakeClient := &fake.Clientset{}
-	testCases := []struct {
-		name   string
-		params *api.StrategyParameters
-	}{
-		{name: "validate nil params", params: nil},
-		{name: "validate empty params", params: &api.StrategyParameters{}},
-		{name: "validate reasons params", params: &api.StrategyParameters{FailedPods: &api.FailedPods{
-			Reasons: []string{"CreateContainerConfigError"},
-		}}},
-		{name: "validate includingInitContainers params", params: &api.StrategyParameters{FailedPods: &api.FailedPods{
-			IncludingInitContainers: true,
-		}}},
-		{name: "validate excludeOwnerKinds params", params: &api.StrategyParameters{FailedPods: &api.FailedPods{
-			ExcludeOwnerKinds: []string{"Job"},
-		}}},
-		{name: "validate excludeOwnerKinds params", params: &api.StrategyParameters{FailedPods: &api.FailedPods{
-			MinPodLifetimeSeconds: &OneHourInSeconds,
-		}}},
-	}
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-			params, err := validateAndParseRemoveFailedPodsParams(ctx, fakeClient, tc.params)
-			if err != nil {
-				t.Errorf("strategy params should be valid but got err: %v", err.Error())
-			}
-			if params == nil {
-				t.Errorf("strategy params should return a ValidatedFailedPodsStrategyParams but got nil")
-			}
-		})
-	}
-}
-
 func newPodStatus(reason string, phase v1.PodPhase, initContainerState, containerState *v1.ContainerState) v1.PodStatus {
 	ps := v1.PodStatus{
 		Reason: reason,

pkg/framework/plugins/removepodshavingtoomanyrestarts/toomanyrestarts.go

@@ -0,0 +1,135 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removepodshavingtoomanyrestarts
+
+import (
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+)
+
+const PluginName = "RemovePodsHavingTooManyRestarts"
+
+// RemovePodsHavingTooManyRestarts removes the pods that have too many restarts on node.
+// There are too many cases leading this issue: Volume mount failed, app error due to nodes' different settings.
+// As of now, this strategy won't evict daemonsets, mirror pods, critical pods and pods with local storages.
+type RemovePodsHavingTooManyRestarts struct {
+	handle    framework.Handle
+	args      *componentconfig.RemovePodsHavingTooManyRestartsArgs
+	podFilter podutil.FilterFunc
+}
+
+var _ framework.DeschedulePlugin = &RemovePodsHavingTooManyRestarts{}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	tooManyRestartsArgs, ok := args.(*componentconfig.RemovePodsHavingTooManyRestartsArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemovePodsHavingTooManyRestartsArgs, got %T", args)
+	}
+
+	var includedNamespaces, excludedNamespaces sets.String
+	if tooManyRestartsArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(tooManyRestartsArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(tooManyRestartsArgs.Namespaces.Exclude...)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		WithLabelSelector(tooManyRestartsArgs.LabelSelector).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	podFilter = podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
+		if err := validateCanEvict(pod, tooManyRestartsArgs); err != nil {
+			klog.V(4).InfoS(fmt.Sprintf("ignoring pod for eviction due to: %s", err.Error()), "pod", klog.KObj(pod))
+			return false
+		}
+		return true
+	})
+
+	return &RemovePodsHavingTooManyRestarts{
+		handle:    handle,
+		args:      tooManyRestartsArgs,
+		podFilter: podFilter,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *RemovePodsHavingTooManyRestarts) Name() string {
+	return PluginName
+}
+
+// Deschedule extension point implementation for the plugin
+func (d *RemovePodsHavingTooManyRestarts) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	for _, node := range nodes {
+		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
+		pods, err := podutil.ListAllPodsOnANode(node.Name, d.handle.GetPodsAssignedToNodeFunc(), d.podFilter)
+		if err != nil {
+			// no pods evicted as error encountered retrieving evictable Pods
+			return &framework.Status{
+				Err: fmt.Errorf("error listing pods on a node: %v", err),
+			}
+		}
+		totalPods := len(pods)
+		for i := 0; i < totalPods; i++ {
+			d.handle.Evictor().Evict(ctx, pods[i], evictions.EvictOptions{})
+			if d.handle.Evictor().NodeLimitExceeded(node) {
+				break
+			}
+		}
+	}
+	return nil
+}
+
+// validateCanEvict looks at tooManyRestartsArgs to see if pod can be evicted given the args.
+func validateCanEvict(pod *v1.Pod, tooManyRestartsArgs *componentconfig.RemovePodsHavingTooManyRestartsArgs) error {
+	var err error
+
+	restarts := calcContainerRestartsFromStatuses(pod.Status.ContainerStatuses)
+	if tooManyRestartsArgs.IncludingInitContainers {
+		restarts += calcContainerRestartsFromStatuses(pod.Status.InitContainerStatuses)
+	}
+
+	if restarts < tooManyRestartsArgs.PodRestartThreshold {
+		err = fmt.Errorf("number of container restarts (%v) not exceeding the threshold", restarts)
+	}
+
+	return err
+}
+
+// calcContainerRestartsFromStatuses get container restarts from container statuses.
+func calcContainerRestartsFromStatuses(statuses []v1.ContainerStatus) int32 {
+	var restarts int32
+	for _, cs := range statuses {
+		restarts += cs.RestartCount
+	}
+	return restarts
+}

pkg/framework/plugins/removepodshavingtoomanyrestarts/toomanyrestarts_test.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2018 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removepodshavingtoomanyrestarts
 
 import (
 	"context"
@@ -27,10 +27,14 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/events"
 
-	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/test"
 )
 
@@ -97,19 +101,18 @@ func TestRemovePodsHavingTooManyRestarts(t *testing.T) {
 			Unschedulable: true,
 		}
 	})
+	node4 := test.BuildTestNode("node4", 200, 3000, 10, nil)
+	node5 := test.BuildTestNode("node5", 2000, 3000, 10, nil)
 
-	pods := initPods(node1)
+	pods := append(append(initPods(node1), test.BuildTestPod("CPU-consumer-1", 150, 100, node4.Name, nil)), test.BuildTestPod("CPU-consumer-2", 150, 100, node5.Name, nil))
 
-	createStrategy := func(enabled, includingInitContainers bool, restartThresholds int32, nodeFit bool) api.DeschedulerStrategy {
-		return api.DeschedulerStrategy{
-			Enabled: enabled,
-			Params: &api.StrategyParameters{
-				PodsHavingTooManyRestarts: &api.PodsHavingTooManyRestarts{
-					PodRestartThreshold:     restartThresholds,
-					IncludingInitContainers: includingInitContainers,
-				},
-				NodeFit: nodeFit,
-			},
+	createRemovePodsHavingTooManyRestartsAgrs := func(
+		podRestartThresholds int32,
+		includingInitContainers bool,
+	) componentconfig.RemovePodsHavingTooManyRestartsArgs {
+		return componentconfig.RemovePodsHavingTooManyRestartsArgs{
+			PodRestartThreshold:     podRestartThresholds,
+			IncludingInitContainers: includingInitContainers,
 		}
 	}
 
@@ -118,86 +121,106 @@ func TestRemovePodsHavingTooManyRestarts(t *testing.T) {
 	tests := []struct {
 		description                    string
 		nodes                          []*v1.Node
-		strategy                       api.DeschedulerStrategy
+		args                           componentconfig.RemovePodsHavingTooManyRestartsArgs
 		expectedEvictedPodCount        uint
 		maxPodsToEvictPerNode          *uint
 		maxNoOfPodsToEvictPerNamespace *uint
+		nodeFit                        bool
 	}{
 		{
 			description:             "All pods have total restarts under threshold, no pod evictions",
-			strategy:                createStrategy(true, true, 10000, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(10000, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 0,
 		},
 		{
 			description:             "Some pods have total restarts bigger than threshold",
-			strategy:                createStrategy(true, true, 1, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 6,
 		},
 		{
 			description:             "Nine pods have total restarts equals threshold(includingInitContainers=true), 6 pod evictions",
-			strategy:                createStrategy(true, true, 1*25, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1*25, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 6,
 		},
 		{
 			description:             "Nine pods have total restarts equals threshold(includingInitContainers=false), 5 pod evictions",
-			strategy:                createStrategy(true, false, 1*25, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1*25, false),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 5,
 		},
 		{
 			description:             "All pods have total restarts equals threshold(includingInitContainers=true), 6 pod evictions",
-			strategy:                createStrategy(true, true, 1*20, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1*20, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 6,
 		},
 		{
 			description:             "Nine pods have total restarts equals threshold(includingInitContainers=false), 6 pod evictions",
-			strategy:                createStrategy(true, false, 1*20, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1*20, false),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 6,
 		},
 		{
 			description:             "Five pods have total restarts bigger than threshold(includingInitContainers=true), but only 1 pod eviction",
-			strategy:                createStrategy(true, true, 5*25+1, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(5*25+1, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 1,
 		},
 		{
 			description:             "Five pods have total restarts bigger than threshold(includingInitContainers=false), but only 1 pod eviction",
-			strategy:                createStrategy(true, false, 5*20+1, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(5*20+1, false),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 1,
+			nodeFit:                 false,
 		},
 		{
 			description:             "All pods have total restarts equals threshold(maxPodsToEvictPerNode=3), 3 pod evictions",
-			strategy:                createStrategy(true, true, 1, false),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 3,
 			maxPodsToEvictPerNode:   &uint3,
 		},
 		{
 			description:                    "All pods have total restarts equals threshold(maxNoOfPodsToEvictPerNamespace=3), 3 pod evictions",
-			strategy:                       createStrategy(true, true, 1, false),
+			args:                           createRemovePodsHavingTooManyRestartsAgrs(1, true),
 			nodes:                          []*v1.Node{node1},
 			expectedEvictedPodCount:        3,
 			maxNoOfPodsToEvictPerNamespace: &uint3,
 		},
 		{
 			description:             "All pods have total restarts equals threshold(maxPodsToEvictPerNode=3) but the only other node is tained, 0 pod evictions",
-			strategy:                createStrategy(true, true, 1, true),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
 			nodes:                   []*v1.Node{node1, node2},
 			expectedEvictedPodCount: 0,
 			maxPodsToEvictPerNode:   &uint3,
+			nodeFit:                 true,
 		},
 		{
 			description:             "All pods have total restarts equals threshold(maxPodsToEvictPerNode=3) but the only other node is not schedulable, 0 pod evictions",
-			strategy:                createStrategy(true, true, 1, true),
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
 			nodes:                   []*v1.Node{node1, node3},
 			expectedEvictedPodCount: 0,
 			maxPodsToEvictPerNode:   &uint3,
+			nodeFit:                 true,
+		},
+		{
+			description:             "All pods have total restarts equals threshold(maxPodsToEvictPerNode=3) but the only other node does not have enough CPU, 0 pod evictions",
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
+			nodes:                   []*v1.Node{node1, node4},
+			expectedEvictedPodCount: 0,
+			maxPodsToEvictPerNode:   &uint3,
+			nodeFit:                 true,
+		},
+		{
+			description:             "All pods have total restarts equals threshold(maxPodsToEvictPerNode=3) but the only other node has enough CPU, 3 pod evictions",
+			args:                    createRemovePodsHavingTooManyRestartsAgrs(1, true),
+			nodes:                   []*v1.Node{node1, node5},
+			expectedEvictedPodCount: 3,
+			maxPodsToEvictPerNode:   &uint3,
+			nodeFit:                 true,
 		},
 	}
 
@@ -227,6 +250,8 @@ func TestRemovePodsHavingTooManyRestarts(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -235,13 +260,44 @@ func TestRemovePodsHavingTooManyRestarts(t *testing.T) {
 				tc.maxNoOfPodsToEvictPerNamespace,
 				tc.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			RemovePodsHavingTooManyRestarts(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 tc.nodeFit,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin, err := New(
+				&tc.args,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					PodEvictorImpl:                podEvictor,
+					EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				})
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, tc.nodes)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)

pkg/framework/plugins/removepodsviolatinginterpodantiaffinity/pod_antiaffinity.go

@@ -14,98 +14,86 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removepodsviolatinginterpodantiaffinity
 
 import (
 	"context"
 	"fmt"
 
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/sets"
-	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
 	"sigs.k8s.io/descheduler/pkg/utils"
 
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/klog/v2"
 )
 
-func validateRemovePodsViolatingInterPodAntiAffinityParams(params *api.StrategyParameters) error {
-	if params == nil {
-		return nil
-	}
+const PluginName = "RemovePodsViolatingInterPodAntiAffinity"
 
-	// At most one of include/exclude can be set
-	if params.Namespaces != nil && len(params.Namespaces.Include) > 0 && len(params.Namespaces.Exclude) > 0 {
-		return fmt.Errorf("only one of Include/Exclude namespaces can be set")
-	}
-	if params.ThresholdPriority != nil && params.ThresholdPriorityClassName != "" {
-		return fmt.Errorf("only one of thresholdPriority and thresholdPriorityClassName can be set")
-	}
-
-	return nil
+// RemovePodsViolatingInterPodAntiAffinity evicts pods on the node which violate inter pod anti affinity
+type RemovePodsViolatingInterPodAntiAffinity struct {
+	handle    framework.Handle
+	args      *componentconfig.RemovePodsViolatingInterPodAntiAffinityArgs
+	podFilter podutil.FilterFunc
 }
 
-// RemovePodsViolatingInterPodAntiAffinity evicts pods on the node which are having a pod affinity rules.
-func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
-	if err := validateRemovePodsViolatingInterPodAntiAffinityParams(strategy.Params); err != nil {
-		klog.ErrorS(err, "Invalid RemovePodsViolatingInterPodAntiAffinity parameters")
-		return
+var _ framework.DeschedulePlugin = &RemovePodsViolatingInterPodAntiAffinity{}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	interPodAntiAffinityArgs, ok := args.(*componentconfig.RemovePodsViolatingInterPodAntiAffinityArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemovePodsViolatingInterPodAntiAffinityArgs, got %T", args)
 	}
 
 	var includedNamespaces, excludedNamespaces sets.String
-	var labelSelector *metav1.LabelSelector
-	if strategy.Params != nil {
-		if strategy.Params.Namespaces != nil {
-			includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
-			excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
-		}
-		labelSelector = strategy.Params.LabelSelector
+	if interPodAntiAffinityArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(interPodAntiAffinityArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(interPodAntiAffinityArgs.Namespaces.Exclude...)
 	}
 
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	podFilter, err := podutil.NewOptions().
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
-		WithLabelSelector(labelSelector).
+		WithLabelSelector(interPodAntiAffinityArgs.LabelSelector).
 		BuildFilterFunc()
 	if err != nil {
-		klog.ErrorS(err, "Error initializing pod filter function")
-		return
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
 	}
 
+	return &RemovePodsViolatingInterPodAntiAffinity{
+		handle:    handle,
+		podFilter: podFilter,
+		args:      interPodAntiAffinityArgs,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *RemovePodsViolatingInterPodAntiAffinity) Name() string {
+	return PluginName
+}
+
+func (d *RemovePodsViolatingInterPodAntiAffinity) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+loop:
 	for _, node := range nodes {
 		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
-		pods, err := podutil.ListPodsOnANode(node.Name, getPodsAssignedToNode, podFilter)
+		pods, err := podutil.ListPodsOnANode(node.Name, d.handle.GetPodsAssignedToNodeFunc(), d.podFilter)
 		if err != nil {
-			return
+			return &framework.Status{
+				Err: fmt.Errorf("error listing pods: %v", err),
+			}
 		}
 		// sort the evictable Pods based on priority, if there are multiple pods with same priority, they are sorted based on QoS tiers.
 		podutil.SortPodsBasedOnPriorityLowToHigh(pods)
 		totalPods := len(pods)
 		for i := 0; i < totalPods; i++ {
-			if checkPodsWithAntiAffinityExist(pods[i], pods) && evictable.IsEvictable(pods[i]) {
-				success, err := podEvictor.EvictPod(ctx, pods[i], node, "InterPodAntiAffinity")
-				if err != nil {
-					klog.ErrorS(err, "Error evicting pod")
-					break
-				}
-
-				if success {
+			if checkPodsWithAntiAffinityExist(pods[i], pods) && d.handle.Evictor().Filter(pods[i]) {
+				if d.handle.Evictor().Evict(ctx, pods[i], evictions.EvictOptions{}) {
 					// Since the current pod is evicted all other pods which have anti-affinity with this
 					// pod need not be evicted.
 					// Update pods.
@@ -114,8 +102,12 @@ func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clients
 					totalPods--
 				}
 			}
+			if d.handle.Evictor().NodeLimitExceeded(node) {
+				continue loop
+			}
 		}
 	}
+	return nil
 }
 
 // checkPodsWithAntiAffinityExist checks if there are other pods on the node that the current pod cannot tolerate.

pkg/framework/plugins/removepodsviolatinginterpodantiaffinity/pod_antiaffinity_test.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removepodsviolatinginterpodantiaffinity
 
 import (
 	"context"
@@ -26,10 +26,14 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/events"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
 
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/pkg/utils"
 	"sigs.k8s.io/descheduler/test"
 )
@@ -47,6 +51,7 @@ func TestPodAntiAffinity(t *testing.T) {
 			Unschedulable: true,
 		}
 	})
+	node4 := test.BuildTestNode("n4", 2, 2, 1, nil)
 
 	p1 := test.BuildTestPod("p1", 100, 0, node1.Name, nil)
 	p2 := test.BuildTestPod("p2", 100, 0, node1.Name, nil)
@@ -174,6 +179,14 @@ func TestPodAntiAffinity(t *testing.T) {
 			nodes:                   []*v1.Node{node1},
 			expectedEvictedPodCount: 0,
 		},
+		{
+			description:             "Won't evict pods because only other node doesn't have enough resources",
+			maxPodsToEvictPerNode:   &uint3,
+			pods:                    []*v1.Pod{p1, p2, p3, p4},
+			nodes:                   []*v1.Node{node1, node4},
+			expectedEvictedPodCount: 0,
+			nodeFit:                 true,
+		},
 	}
 
 	for _, test := range tests {
@@ -202,6 +215,8 @@ func TestPodAntiAffinity(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -210,18 +225,43 @@ func TestPodAntiAffinity(t *testing.T) {
 				test.maxNoOfPodsToEvictPerNamespace,
 				test.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
-			strategy := api.DeschedulerStrategy{
-				Params: &api.StrategyParameters{
-					NodeFit: test.nodeFit,
-				},
+
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 test.nodeFit,
 			}
 
-			RemovePodsViolatingInterPodAntiAffinity(ctx, fakeClient, strategy, test.nodes, podEvictor, getPodsAssignedToNode)
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+			}
+			plugin, err := New(
+				&componentconfig.RemovePodsViolatingInterPodAntiAffinityArgs{},
+				handle,
+			)
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, test.nodes)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != test.expectedEvictedPodCount {
 				t.Errorf("Unexpected no of pods evicted: pods evicted: %d, expected: %d", podsEvicted, test.expectedEvictedPodCount)

pkg/framework/plugins/removepodsviolatingnodeaffinity/node_affinity.go

@@ -0,0 +1,118 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removepodsviolatingnodeaffinity
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
+
+	"context"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/klog/v2"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+)
+
+const PluginName = "RemovePodsViolatingNodeAffinity"
+
+// RemovePodsViolatingNodeAffinity evicts pods on the node which violate node affinity
+type RemovePodsViolatingNodeAffinity struct {
+	handle    framework.Handle
+	args      *componentconfig.RemovePodsViolatingNodeAffinityArgs
+	podFilter podutil.FilterFunc
+}
+
+var _ framework.DeschedulePlugin = &RemovePodsViolatingNodeAffinity{}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	nodeAffinityArgs, ok := args.(*componentconfig.RemovePodsViolatingNodeAffinityArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemovePodsViolatingNodeAffinityArgs, got %T", args)
+	}
+
+	var includedNamespaces, excludedNamespaces sets.String
+	if nodeAffinityArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(nodeAffinityArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(nodeAffinityArgs.Namespaces.Exclude...)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		WithLabelSelector(nodeAffinityArgs.LabelSelector).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	return &RemovePodsViolatingNodeAffinity{
+		handle:    handle,
+		podFilter: podFilter,
+		args:      nodeAffinityArgs,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *RemovePodsViolatingNodeAffinity) Name() string {
+	return PluginName
+}
+
+func (d *RemovePodsViolatingNodeAffinity) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	for _, nodeAffinity := range d.args.NodeAffinityType {
+		klog.V(2).InfoS("Executing for nodeAffinityType", "nodeAffinity", nodeAffinity)
+
+		switch nodeAffinity {
+		case "requiredDuringSchedulingIgnoredDuringExecution":
+			for _, node := range nodes {
+				klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
+
+				pods, err := podutil.ListPodsOnANode(
+					node.Name,
+					d.handle.GetPodsAssignedToNodeFunc(),
+					podutil.WrapFilterFuncs(d.podFilter, func(pod *v1.Pod) bool {
+						return d.handle.Evictor().Filter(pod) &&
+							!nodeutil.PodFitsCurrentNode(d.handle.GetPodsAssignedToNodeFunc(), pod, node) &&
+							nodeutil.PodFitsAnyNode(d.handle.GetPodsAssignedToNodeFunc(), pod, nodes)
+					}),
+				)
+				if err != nil {
+					return &framework.Status{
+						Err: fmt.Errorf("error listing pods on a node: %v", err),
+					}
+				}
+
+				for _, pod := range pods {
+					if pod.Spec.Affinity != nil && pod.Spec.Affinity.NodeAffinity != nil && pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution != nil {
+						klog.V(1).InfoS("Evicting pod", "pod", klog.KObj(pod))
+						d.handle.Evictor().Evict(ctx, pod, evictions.EvictOptions{})
+						if d.handle.Evictor().NodeLimitExceeded(node) {
+							break
+						}
+					}
+				}
+			}
+		default:
+			klog.ErrorS(nil, "Invalid nodeAffinityType", "nodeAffinity", nodeAffinity)
+		}
+	}
+	return nil
+}

pkg/framework/plugins/removepodsviolatingnodeaffinity/node_affinity_test.go

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package strategies
+package removepodsviolatingnodeaffinity
 
 import (
 	"context"
@@ -26,33 +26,18 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/events"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/framework"
 
-	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/test"
 )
 
 func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
-	requiredDuringSchedulingIgnoredDuringExecutionStrategy := api.DeschedulerStrategy{
-		Enabled: true,
-		Params: &api.StrategyParameters{
-			NodeAffinityType: []string{
-				"requiredDuringSchedulingIgnoredDuringExecution",
-			},
-		},
-	}
-
-	requiredDuringSchedulingIgnoredDuringExecutionWithNodeFitStrategy := api.DeschedulerStrategy{
-		Enabled: true,
-		Params: &api.StrategyParameters{
-			NodeAffinityType: []string{
-				"requiredDuringSchedulingIgnoredDuringExecution",
-			},
-			NodeFit: true,
-		},
-	}
-
 	nodeLabelKey := "kubernetes.io/desiredNode"
 	nodeLabelValue := "yes"
 	nodeWithLabels := test.BuildTestNode("nodeWithLabels", 2000, 3000, 10, nil)
@@ -108,28 +93,26 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 		description                    string
 		nodes                          []*v1.Node
 		pods                           []*v1.Pod
-		strategy                       api.DeschedulerStrategy
 		expectedEvictedPodCount        uint
 		maxPodsToEvictPerNode          *uint
 		maxNoOfPodsToEvictPerNamespace *uint
+		args                           componentconfig.RemovePodsViolatingNodeAffinityArgs
+		nodefit                        bool
 	}{
 		{
-			description: "Invalid strategy type, should not evict any pods",
-			strategy: api.DeschedulerStrategy{
-				Enabled: true,
-				Params: &api.StrategyParameters{
-					NodeAffinityType: []string{
-						"requiredDuringSchedulingRequiredDuringExecution",
-					},
-				},
+			description: "Invalid Affinity type, should not evict any pods",
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingRequiredDuringExecution"},
 			},
 			expectedEvictedPodCount: 0,
 			pods:                    addPodsToNode(nodeWithoutLabels, nil),
 			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
 		},
 		{
-			description:             "Pod is correctly scheduled on node, no eviction expected",
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			description: "Pod is correctly scheduled on node, no eviction expected",
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
 			expectedEvictedPodCount: 0,
 			pods:                    addPodsToNode(nodeWithLabels, nil),
 			nodes:                   []*v1.Node{nodeWithLabels},
@@ -137,38 +120,48 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 		{
 			description:             "Pod is scheduled on node without matching labels, another schedulable node available, should be evicted",
 			expectedEvictedPodCount: 1,
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
-			pods:                    addPodsToNode(nodeWithoutLabels, nil),
-			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			pods:  addPodsToNode(nodeWithoutLabels, nil),
+			nodes: []*v1.Node{nodeWithoutLabels, nodeWithLabels},
 		},
 		{
 			description:             "Pod is scheduled on node without matching labels, another schedulable node available, maxPodsToEvictPerNode set to 1, should not be evicted",
 			expectedEvictedPodCount: 1,
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
-			pods:                    addPodsToNode(nodeWithoutLabels, nil),
-			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
-			maxPodsToEvictPerNode:   &uint1,
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			pods:                  addPodsToNode(nodeWithoutLabels, nil),
+			nodes:                 []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			maxPodsToEvictPerNode: &uint1,
 		},
 		{
 			description:             "Pod is scheduled on node without matching labels, another schedulable node available, maxPodsToEvictPerNode set to 1, no pod evicted since pod terminting",
 			expectedEvictedPodCount: 1,
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
-			pods:                    addPodsToNode(nodeWithoutLabels, &metav1.Time{}),
-			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
-			maxPodsToEvictPerNode:   &uint1,
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			pods:                  addPodsToNode(nodeWithoutLabels, &metav1.Time{}),
+			nodes:                 []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			maxPodsToEvictPerNode: &uint1,
 		},
 		{
-			description:                    "Pod is scheduled on node without matching labels, another schedulable node available, maxNoOfPodsToEvictPerNamespace set to 1, should not be evicted",
-			expectedEvictedPodCount:        1,
-			strategy:                       requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			description:             "Pod is scheduled on node without matching labels, another schedulable node available, maxNoOfPodsToEvictPerNamespace set to 1, should not be evicted",
+			expectedEvictedPodCount: 1,
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
 			pods:                           addPodsToNode(nodeWithoutLabels, nil),
 			nodes:                          []*v1.Node{nodeWithoutLabels, nodeWithLabels},
 			maxNoOfPodsToEvictPerNamespace: &uint1,
 		},
 		{
-			description:                    "Pod is scheduled on node without matching labels, another schedulable node available, maxNoOfPodsToEvictPerNamespace set to 1, no pod evicted since pod terminting",
-			expectedEvictedPodCount:        1,
-			strategy:                       requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			description:             "Pod is scheduled on node without matching labels, another schedulable node available, maxNoOfPodsToEvictPerNamespace set to 1, no pod evicted since pod terminting",
+			expectedEvictedPodCount: 1,
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
 			pods:                           addPodsToNode(nodeWithoutLabels, &metav1.Time{}),
 			nodes:                          []*v1.Node{nodeWithoutLabels, nodeWithLabels},
 			maxNoOfPodsToEvictPerNamespace: &uint1,
@@ -176,17 +169,23 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 		{
 			description:             "Pod is scheduled on node without matching labels, but no node where pod fits is available, should not evict",
 			expectedEvictedPodCount: 0,
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionWithNodeFitStrategy,
-			pods:                    addPodsToNode(nodeWithoutLabels, nil),
-			nodes:                   []*v1.Node{nodeWithoutLabels, unschedulableNodeWithLabels},
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			pods:    addPodsToNode(nodeWithoutLabels, nil),
+			nodes:   []*v1.Node{nodeWithoutLabels, unschedulableNodeWithLabels},
+			nodefit: true,
 		},
 		{
 			description:             "Pod is scheduled on node without matching labels, and node where pod fits is available, should evict",
 			expectedEvictedPodCount: 0,
-			strategy:                requiredDuringSchedulingIgnoredDuringExecutionWithNodeFitStrategy,
-			pods:                    addPodsToNode(nodeWithoutLabels, nil),
-			nodes:                   []*v1.Node{nodeWithLabels, unschedulableNodeWithLabels},
-			maxPodsToEvictPerNode:   &uint1,
+			args: componentconfig.RemovePodsViolatingNodeAffinityArgs{
+				NodeAffinityType: []string{"requiredDuringSchedulingIgnoredDuringExecution"},
+			},
+			pods:                  addPodsToNode(nodeWithoutLabels, nil),
+			nodes:                 []*v1.Node{nodeWithLabels, unschedulableNodeWithLabels},
+			maxPodsToEvictPerNode: &uint1,
+			nodefit:               true,
 		},
 	}
 
@@ -215,6 +214,8 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -223,13 +224,49 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 				tc.maxNoOfPodsToEvictPerNamespace,
 				tc.nodes,
 				false,
-				false,
-				false,
-				false,
-				false,
+				eventRecorder,
 			)
 
-			RemovePodsViolatingNodeAffinity(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   false,
+				EvictSystemCriticalPods: false,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 tc.nodefit,
+			}
+
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+			}
+
+			plugin, err := New(
+				&componentconfig.RemovePodsViolatingNodeAffinityArgs{
+					NodeAffinityType: tc.args.NodeAffinityType,
+				},
+				handle,
+			)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, tc.nodes)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)

pkg/framework/plugins/removepodsviolatingnodetaints/node_taint.go

@@ -0,0 +1,128 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removepodsviolatingnodetaints
+
+import (
+	"context"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	"sigs.k8s.io/descheduler/pkg/utils"
+)
+
+const PluginName = "RemovePodsViolatingNodeTaints"
+
+// RemovePodsViolatingNodeTaints evicts pods on the node which violate NoSchedule Taints on nodes
+type RemovePodsViolatingNodeTaints struct {
+	handle         framework.Handle
+	args           *componentconfig.RemovePodsViolatingNodeTaintsArgs
+	taintFilterFnc func(taint *v1.Taint) bool
+	podFilter      podutil.FilterFunc
+}
+
+var _ framework.DeschedulePlugin = &RemovePodsViolatingNodeTaints{}
+
+// New builds plugin from its arguments while passing a handle
+func New(args runtime.Object, handle framework.Handle) (framework.Plugin, error) {
+	nodeTaintsArgs, ok := args.(*componentconfig.RemovePodsViolatingNodeTaintsArgs)
+	if !ok {
+		return nil, fmt.Errorf("want args to be of type RemovePodsViolatingNodeTaintsArgs, got %T", args)
+	}
+
+	var includedNamespaces, excludedNamespaces sets.String
+	if nodeTaintsArgs.Namespaces != nil {
+		includedNamespaces = sets.NewString(nodeTaintsArgs.Namespaces.Include...)
+		excludedNamespaces = sets.NewString(nodeTaintsArgs.Namespaces.Exclude...)
+	}
+
+	podFilter, err := podutil.NewOptions().
+		WithFilter(handle.Evictor().Filter).
+		WithNamespaces(includedNamespaces).
+		WithoutNamespaces(excludedNamespaces).
+		WithLabelSelector(nodeTaintsArgs.LabelSelector).
+		BuildFilterFunc()
+	if err != nil {
+		return nil, fmt.Errorf("error initializing pod filter function: %v", err)
+	}
+
+	excludedTaints := sets.NewString(nodeTaintsArgs.ExcludedTaints...)
+	excludeTaint := func(taint *v1.Taint) bool {
+		// Exclude taints by key *or* key=value
+		return excludedTaints.Has(taint.Key) || (taint.Value != "" && excludedTaints.Has(fmt.Sprintf("%s=%s", taint.Key, taint.Value)))
+	}
+
+	taintFilterFnc := func(taint *v1.Taint) bool { return (taint.Effect == v1.TaintEffectNoSchedule) && !excludeTaint(taint) }
+	if nodeTaintsArgs.IncludePreferNoSchedule {
+		taintFilterFnc = func(taint *v1.Taint) bool {
+			return (taint.Effect == v1.TaintEffectNoSchedule || taint.Effect == v1.TaintEffectPreferNoSchedule) && !excludeTaint(taint)
+		}
+	}
+
+	return &RemovePodsViolatingNodeTaints{
+		handle:         handle,
+		podFilter:      podFilter,
+		args:           nodeTaintsArgs,
+		taintFilterFnc: taintFilterFnc,
+	}, nil
+}
+
+// Name retrieves the plugin name
+func (d *RemovePodsViolatingNodeTaints) Name() string {
+	return PluginName
+}
+
+// Deschedule extension point implementation for the plugin
+func (d *RemovePodsViolatingNodeTaints) Deschedule(ctx context.Context, nodes []*v1.Node) *framework.Status {
+	for _, node := range nodes {
+		klog.V(1).InfoS("Processing node", "node", klog.KObj(node))
+		pods, err := podutil.ListAllPodsOnANode(node.Name, d.handle.GetPodsAssignedToNodeFunc(), d.podFilter)
+		if err != nil {
+			// no pods evicted as error encountered retrieving evictable Pods
+			return &framework.Status{
+				Err: fmt.Errorf("error listing pods on a node: %v", err),
+			}
+		}
+		totalPods := len(pods)
+		skipNode := false
+		for i := 0; i < totalPods; i++ {
+			if !utils.TolerationsTolerateTaintsWithFilter(
+				pods[i].Spec.Tolerations,
+				node.Spec.Taints,
+				d.taintFilterFnc,
+			) {
+				klog.V(2).InfoS("Not all taints with NoSchedule effect are tolerated after update for pod on node", "pod", klog.KObj(pods[i]), "node", klog.KObj(node))
+				d.handle.Evictor().Evict(ctx, pods[i], evictions.EvictOptions{})
+				if d.handle.Evictor().NodeLimitExceeded(node) {
+					skipNode = true
+					break
+				}
+			}
+		}
+		if skipNode {
+			continue
+		}
+	}
+	return nil
+}

pkg/framework/plugins/removepodsviolatingnodetaints/node_taint_test.go

@@ -1,4 +1,20 @@
-package strategies
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removepodsviolatingnodetaints
 
 import (
 	"context"
@@ -11,10 +27,14 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	"k8s.io/client-go/tools/events"
 
-	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/framework"
+	frameworkfake "sigs.k8s.io/descheduler/pkg/framework/fake"
+	"sigs.k8s.io/descheduler/pkg/framework/plugins/defaultevictor"
 	"sigs.k8s.io/descheduler/pkg/utils"
 	"sigs.k8s.io/descheduler/test"
 )
@@ -27,6 +47,14 @@ func createNoScheduleTaint(key, value string, index int) v1.Taint {
 	}
 }
 
+func createPreferNoScheduleTaint(key, value string, index int) v1.Taint {
+	return v1.Taint{
+		Key:    "testTaint" + fmt.Sprintf("%v", index),
+		Value:  "test" + fmt.Sprintf("%v", index),
+		Effect: v1.TaintEffectPreferNoSchedule,
+	}
+}
+
 func addTaintsToNode(node *v1.Node, key, value string, indices []int) *v1.Node {
 	taints := []v1.Taint{}
 	for _, index := range indices {
@@ -36,12 +64,12 @@ func addTaintsToNode(node *v1.Node, key, value string, indices []int) *v1.Node {
 	return node
 }
 
-func addTolerationToPod(pod *v1.Pod, key, value string, index int) *v1.Pod {
+func addTolerationToPod(pod *v1.Pod, key, value string, index int, effect v1.TaintEffect) *v1.Pod {
 	if pod.Annotations == nil {
 		pod.Annotations = map[string]string{}
 	}
 
-	pod.Spec.Tolerations = []v1.Toleration{{Key: key + fmt.Sprintf("%v", index), Value: value + fmt.Sprintf("%v", index), Effect: v1.TaintEffectNoSchedule}}
+	pod.Spec.Tolerations = []v1.Toleration{{Key: key + fmt.Sprintf("%v", index), Value: value + fmt.Sprintf("%v", index), Effect: effect}}
 
 	return pod
 }
@@ -63,6 +91,16 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 		}
 	})
 
+	node5 := test.BuildTestNode("n5", 2000, 3000, 10, nil)
+	node5.Spec.Taints = []v1.Taint{
+		createPreferNoScheduleTaint("testTaint", "test", 1),
+	}
+
+	node6 := test.BuildTestNode("n6", 1, 1, 1, nil)
+	node6.Spec.Taints = []v1.Taint{
+		createPreferNoScheduleTaint("testTaint", "test", 1),
+	}
+
 	p1 := test.BuildTestPod("p1", 100, 0, node1.Name, nil)
 	p2 := test.BuildTestPod("p2", 100, 0, node1.Name, nil)
 	p3 := test.BuildTestPod("p3", 100, 0, node1.Name, nil)
@@ -109,14 +147,20 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 	// A Mirror Pod.
 	p10.Annotations = test.GetMirrorPodAnnotation()
 
-	p1 = addTolerationToPod(p1, "testTaint", "test", 1)
-	p3 = addTolerationToPod(p3, "testTaint", "test", 1)
-	p4 = addTolerationToPod(p4, "testTaintX", "testX", 1)
+	p1 = addTolerationToPod(p1, "testTaint", "test", 1, v1.TaintEffectNoSchedule)
+	p3 = addTolerationToPod(p3, "testTaint", "test", 1, v1.TaintEffectNoSchedule)
+	p4 = addTolerationToPod(p4, "testTaintX", "testX", 1, v1.TaintEffectNoSchedule)
 
 	p12.Spec.NodeSelector = map[string]string{
 		"datacenter": "west",
 	}
 
+	p13 := test.BuildTestPod("p13", 100, 0, node5.Name, nil)
+	p13.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+	// node5 has PreferNoSchedule:testTaint1=test1, so the p13 has to have
+	// PreferNoSchedule:testTaint0=test0 so the pod is not tolarated
+	p13 = addTolerationToPod(p13, "testTaint", "test", 0, v1.TaintEffectPreferNoSchedule)
+
 	var uint1 uint = 1
 
 	tests := []struct {
@@ -129,6 +173,8 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 		maxNoOfPodsToEvictPerNamespace *uint
 		expectedEvictedPodCount        uint
 		nodeFit                        bool
+		includePreferNoSchedule        bool
+		excludedTaints                 []string
 	}{
 
 		{
@@ -224,6 +270,59 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 			expectedEvictedPodCount: 0, //p2 gets evicted
 			nodeFit:                 true,
 		},
+		{
+			description:             "Pods not tolerating PreferNoSchedule node taint should not be evicted when not enabled",
+			pods:                    []*v1.Pod{p13},
+			nodes:                   []*v1.Node{node5},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			expectedEvictedPodCount: 0,
+		},
+		{
+			description:             "Pods not tolerating PreferNoSchedule node taint should be evicted when enabled",
+			pods:                    []*v1.Pod{p13},
+			nodes:                   []*v1.Node{node5},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			includePreferNoSchedule: true,
+			expectedEvictedPodCount: 1, // p13 gets evicted
+		},
+		{
+			description:             "Pods not tolerating excluded node taints (by key) should not be evicted",
+			pods:                    []*v1.Pod{p2},
+			nodes:                   []*v1.Node{node1},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			excludedTaints:          []string{"excludedTaint1", "testTaint1"},
+			expectedEvictedPodCount: 0, // nothing gets evicted, as one of the specified excludedTaints matches the key of node1's taint
+		},
+		{
+			description:             "Pods not tolerating excluded node taints (by key and value) should not be evicted",
+			pods:                    []*v1.Pod{p2},
+			nodes:                   []*v1.Node{node1},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			excludedTaints:          []string{"testTaint1=test1"},
+			expectedEvictedPodCount: 0, // nothing gets evicted, as both the key and value of the excluded taint match node1's taint
+		},
+		{
+			description:             "The excluded taint matches the key of node1's taint, but does not match the value",
+			pods:                    []*v1.Pod{p2},
+			nodes:                   []*v1.Node{node1},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: false,
+			excludedTaints:          []string{"testTaint1=test2"},
+			expectedEvictedPodCount: 1, // pod gets evicted, as excluded taint value does not match node1's taint value
+		},
+		{
+			description:             "Critical and non critical pods, pods not tolerating node taint can't be evicted because the only available node does not have enough resources.",
+			pods:                    []*v1.Pod{p2, p7, p9, p10},
+			nodes:                   []*v1.Node{node1, node6},
+			evictLocalStoragePods:   false,
+			evictSystemCriticalPods: true,
+			expectedEvictedPodCount: 0, //p2 and p7 can't be evicted
+			nodeFit:                 true,
+		},
 	}
 
 	for _, tc := range tests {
@@ -252,6 +351,8 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
+			eventRecorder := &events.FakeRecorder{}
+
 			podEvictor := evictions.NewPodEvictor(
 				fakeClient,
 				policyv1.SchemeGroupVersion.String(),
@@ -259,20 +360,50 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 				tc.maxPodsToEvictPerNode,
 				tc.maxNoOfPodsToEvictPerNamespace,
 				tc.nodes,
-				tc.evictLocalStoragePods,
-				tc.evictSystemCriticalPods,
-				false,
-				false,
 				false,
+				eventRecorder,
 			)
 
-			strategy := api.DeschedulerStrategy{
-				Params: &api.StrategyParameters{
-					NodeFit: tc.nodeFit,
-				},
+			defaultevictorArgs := &defaultevictor.DefaultEvictorArgs{
+				EvictLocalStoragePods:   tc.evictLocalStoragePods,
+				EvictSystemCriticalPods: tc.evictSystemCriticalPods,
+				IgnorePvcPods:           false,
+				EvictFailedBarePods:     false,
+				NodeFit:                 tc.nodeFit,
 			}
 
-			RemovePodsViolatingNodeTaints(ctx, fakeClient, strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			evictorFilter, err := defaultevictor.New(
+				defaultevictorArgs,
+				&frameworkfake.HandleImpl{
+					ClientsetImpl:                 fakeClient,
+					GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+					SharedInformerFactoryImpl:     sharedInformerFactory,
+				},
+			)
+
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			handle := &frameworkfake.HandleImpl{
+				ClientsetImpl:                 fakeClient,
+				GetPodsAssignedToNodeFuncImpl: getPodsAssignedToNode,
+				PodEvictorImpl:                podEvictor,
+				EvictorFilterImpl:             evictorFilter.(framework.EvictorPlugin),
+				SharedInformerFactoryImpl:     sharedInformerFactory,
+			}
+
+			plugin, err := New(&componentconfig.RemovePodsViolatingNodeTaintsArgs{
+				IncludePreferNoSchedule: tc.includePreferNoSchedule,
+				ExcludedTaints:          tc.excludedTaints,
+			},
+				handle,
+			)
+			if err != nil {
+				t.Fatalf("Unable to initialize the plugin: %v", err)
+			}
+
+			plugin.(framework.DeschedulePlugin).Deschedule(ctx, tc.nodes)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, Unexpected no of pods evicted: pods evicted: %d, expected: %d", tc.description, actualEvictedPodCount, tc.expectedEvictedPodCount)