Merge pull request #352 from KohlsTechnology/helm-chart-release-1.18

Cherry Pick: Add helm chart release-1.18

.github/workflows/release.yaml

@@ -0,0 +1,30 @@
+name: Release Charts
+
+on:
+  push:
+    tags:
+      - chart-*
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: Fetch history
+        run: git fetch --prune --unshallow
+
+      - name: Add dependency chart repos
+        run: |
+          helm repo add stable https://kubernetes-charts.storage.googleapis.com/
+
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1.0.0-rc.2
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.gitignore

@@ -0,0 +1,5 @@
+_output/
+_tmp/
+vendordiff.patch
+.idea/
+*.code-workspace

.golangci.yml

@@ -0,0 +1,15 @@
+run:
+  deadline: 2m
+
+linters:
+  disable-all: true
+  enable:
+    - gofmt
+    - gosimple
+    - gocyclo
+    - misspell
+    - govet
+
+linters-settings:
+  goimports:
+local-prefixes: sigs.k8s.io/descheduler

.travis.yml

@@ -1,6 +0,0 @@
-language: go
-go:
-  - 1.8.3
-script:
-- make build
-- make test

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+# Contributing Guidelines
+
+Welcome to Kubernetes. We are excited about the prospect of you joining our [community](https://github.com/kubernetes/community)! The Kubernetes community abides by the CNCF [code of conduct](code-of-conduct.md). Here is an excerpt:
+
+_As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities._
+
+## Getting Started
+
+We have full documentation on how to get started contributing here:
+
+- [Contributor License Agreement](https://git.k8s.io/community/CLA.md) Kubernetes projects require that you sign a Contributor License Agreement (CLA) before we can accept your pull requests
+- [Kubernetes Contributor Guide](http://git.k8s.io/community/contributors/guide) - Main contributor documentation, or you can just jump directly to the [contributing section](http://git.k8s.io/community/contributors/guide#contributing)
+- [Contributor Cheat Sheet](https://git.k8s.io/community/contributors/guide/contributor-cheatsheet/README.md) - Common resources for existing developers
+
+## Mentorship
+
+- [Mentoring Initiatives](https://git.k8s.io/community/mentoring) - We have a diverse set of mentorship programs available that are always looking for volunteers!
+
+
+## Contact Information
+
+- [Slack channel](https://kubernetes.slack.com/messages/sig-scheduling)
+- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-scheduling)

Dockerfile

@@ -11,10 +11,16 @@
 # 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:1.13.9
 
-FROM fedora
+WORKDIR /go/src/sigs.k8s.io/descheduler
+COPY . .
+RUN make
 
-MAINTAINER Avesh Agarwal <avagarwa@redhat.com>
+FROM scratch
 
-COPY _output/bin/descheduler /bin/descheduler
-CMD ["/bin/descheduler --help"]
+MAINTAINER Avesh Agarwal <avesh.ncsu@gmail.com>
+
+COPY --from=0 /go/src/sigs.k8s.io/descheduler/_output/bin/descheduler /bin/descheduler
+
+CMD ["/bin/descheduler", "--help"]

Dockerfile.dev

@@ -0,0 +1,20 @@
+# 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.
+FROM scratch
+
+MAINTAINER Avesh Agarwal <avesh.ncsu@gmail.com>
+
+COPY _output/bin/descheduler /bin/descheduler
+
+CMD ["/bin/descheduler", "--help"]

Makefile

@@ -15,21 +15,83 @@
 .PHONY: test
 
 # VERSION is currently based on the last commit
-VERSION:=$(shell git rev-parse --short HEAD)
+VERSION?=$(shell git describe --tags)
+COMMIT=$(shell git rev-parse HEAD)
+BUILD=$(shell date +%FT%T%z)
+LDFLAG_LOCATION=sigs.k8s.io/descheduler/cmd/descheduler/app
+
+LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitCommit=${COMMIT}"
+
+GOLANGCI_VERSION := v1.15.0
+HAS_GOLANGCI := $(shell which golangci-lint)
+
+# REGISTRY is the container registry to push
+# into. The default is to push to the staging
+# registry, not production.
+REGISTRY?=gcr.io/k8s-staging-descheduler
 
 # IMAGE is the image name of descheduler
 IMAGE:=descheduler:$(VERSION)
 
+# IMAGE_GCLOUD is the image name of descheduler in the remote registry
+IMAGE_GCLOUD:=$(REGISTRY)/descheduler:$(VERSION)
+
+# TODO: upload binaries to GCS bucket
+#
+# In the future binaries can be uploaded to
+# GCS bucket gs://k8s-staging-descheduler.
+
+HAS_HELM := $(shell which helm)
+
 all: build
 
 build:
-	go build -o _output/bin/descheduler github.com/kubernetes-incubator/descheduler/cmd/descheduler
+	CGO_ENABLED=0 go build ${LDFLAGS} -o _output/bin/descheduler sigs.k8s.io/descheduler/cmd/descheduler
 
-image: build
+dev-image: build
+	docker build -f Dockerfile.dev -t $(IMAGE) .
+
+image:
 	docker build -t $(IMAGE) .
 
+push-container-to-gcloud: image
+	gcloud auth configure-docker
+	docker tag $(IMAGE) $(IMAGE_GCLOUD)
+	docker push $(IMAGE_GCLOUD)
+
+push: push-container-to-gcloud
+
 clean:
 	rm -rf _output
 
-test:
+verify: verify-gofmt verify-vendor lint lint-chart
+
+verify-gofmt:
+	./hack/verify-gofmt.sh
+
+verify-vendor:
+	./hack/verify-vendor.sh
+
+test-unit:
 	./test/run-unit-tests.sh
+
+test-e2e:
+	./test/run-e2e-tests.sh
+
+gen:
+	./hack/update-generated-conversions.sh
+	./hack/update-generated-deep-copies.sh
+	./hack/update-generated-defaulters.sh
+	#undo go mod changes caused by above.
+	go mod tidy
+lint:
+ifndef HAS_GOLANGCI
+	curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b ./_output/bin ${GOLANGCI_VERSION}
+endif
+	./_output/bin/golangci-lint run
+
+lint-chart:
+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
+	helm lint ./charts/descheduler

OWNER

@@ -1,3 +0,0 @@
-aveshagarwal
-ravisantoshgudimetla
-jayunit100

OWNERS

@@ -0,0 +1,11 @@
+approvers:
+- aveshagarwal
+- k82cn
+- ravisantoshgudimetla
+- damemi
+reviewers:
+- aveshagarwal
+- k82cn
+- ravisantoshgudimetla
+- damemi
+- seanmalloy

README.md

@@ -1,3 +1,5 @@
+[![Go Report Card](https://goreportcard.com/badge/kubernetes-sigs/descheduler)](https://goreportcard.com/report/sigs.k8s.io/descheduler)
+
 # Descheduler for Kubernetes
 
 ## Introduction
@@ -6,8 +8,8 @@ Scheduling in Kubernetes is the process of binding pending pods to nodes, and is
 a component of Kubernetes called kube-scheduler. The scheduler's decisions, whether or where a
 pod can or can not be scheduled, are guided by its configurable policy which comprises of set of
 rules, called predicates and priorities. The scheduler's decisions are influenced by its view of
-a Kubernetes cluster at that point of time when a new pod appears first time for scheduling.
-As Kubernetes clusters are very dynamic and their state change over time, there may be desired
+a Kubernetes cluster at that point of time when a new pod appears for scheduling.
+As Kubernetes clusters are very dynamic and their state changes over time, there may be desire
 to move already running pods to some other nodes for various reasons:
 
 * Some nodes are under or over utilized.
@@ -21,48 +23,63 @@ Descheduler, based on its policy, finds pods that can be moved and evicts them.
 note, in current implementation, descheduler does not schedule replacement of evicted pods
 but relies on the default scheduler for that.
 
-## Build and Run
+## Quick Start
 
-Build descheduler:
+The descheduler can be run as a Job or CronJob inside of a k8s cluster. It has the
+advantage of being able to be run multiple times without needing user intervention.
+The descheduler pod is run as a critical pod in the `kube-system` namespace to avoid
+being evicted by itself or by the kubelet.
 
-```sh
-$ make
+### Run As A Job
+
+```
+kubectl create -f kubernetes/rbac.yaml
+kubectl create -f kubernetes/configmap.yaml
+kubectl create -f kubernetes/job.yaml
 ```
 
-and run descheduler:
+### Run As A CronJob
 
-```sh
-$ ./_output/bin/descheduler --kubeconfig <path to kubeconfig> --policy-config-file <path-to-policy-file>
+```
+kubectl create -f kubernetes/rbac.yaml
+kubectl create -f kubernetes/configmap.yaml
+kubectl create -f kubernetes/cronjob.yaml
 ```
 
-For more information about available options run:
-```
-$ ./_output/bin/descheduler --help
-```
+## User Guide
+
+See the [user guide](docs/user-guide.md) in the `/docs` directory.
 
 ## Policy and Strategies
- 
-Descheduler's policy is configurable and includes strategies to be enabled or disabled.
-Two strategies, `RemoveDuplicates` and `LowNodeUtilization` are currently implemented.
-As part of the policy, the parameters associated with the strategies can be configured too.
+
+Descheduler's policy is configurable and includes strategies that can be enabled or disabled.
+Seven strategies `RemoveDuplicates`, `LowNodeUtilization`, `RemovePodsViolatingInterPodAntiAffinity`,
+`RemovePodsViolatingNodeAffinity`, `RemovePodsViolatingNodeTaints`, `RemovePodsHavingTooManyRestarts`, and `PodLifeTime`
+are currently implemented. As part of the policy, the parameters associated with the strategies can be configured too.
 By default, all strategies are enabled.
 
 ### RemoveDuplicates
 
 This strategy makes sure that there is only one pod associated with a Replica Set (RS),
-Replication Controller (RC), Deployment, or Job running on same node. If there are more,
+Replication Controller (RC), Deployment, or Job running on the same node. If there are more,
 those duplicate pods are evicted for better spreading of pods in a cluster. This issue could happen
 if some nodes went down due to whatever reasons, and pods on them were moved to other nodes leading to
-more than one pod associated with RS or RC, for example, running on same node. Once the failed nodes
-are ready again, this strategy could be enabled to evict those duplicate pods. Currently, there are no
-parameters associated with this strategy. To disable this strategy, the policy would look like:
+more than one pod associated with a RS or RC, for example, running on the same node. Once the failed nodes
+are ready again, this strategy could be enabled to evict those duplicate pods.
+
+It provides one optional parameter, `ExcludeOwnerKinds`, which is a list of OwnerRef `Kind`s. If a pod
+has any of these `Kind`s listed as an `OwnerRef`, that pod will not be considered for eviction.
 
 ```
 apiVersion: "descheduler/v1alpha1"
 kind: "DeschedulerPolicy"
 strategies:
   "RemoveDuplicates":
-     enabled: false
+     enabled: true
+     params:
+       removeDuplicates:
+         excludeOwnerKinds:
+         - "ReplicaSet"
 ```
 
 ### LowNodeUtilization
@@ -71,10 +88,10 @@ This strategy finds nodes that are under utilized and evicts pods, if possible,
 in the hope that recreation of evicted pods will be scheduled on these underutilized nodes. The
 parameters of this strategy are configured under `nodeResourceUtilizationThresholds`.
 
-The under utilization of nodes is determined by a configurable threshold, `thresholds`. The threshold
+The under utilization of nodes is determined by a configurable threshold `thresholds`. The threshold
 `thresholds` can be configured for cpu, memory, and number of pods in terms of percentage. If a node's
 usage is below threshold for all (cpu, memory, and number of pods), the node is considered underutilized.
-Currently, pods' request resource requirements are considered for computing node resource utilization.
+Currently, pods request resource requirements are considered for computing node resource utilization.
 
 There is another configurable threshold, `targetThresholds`, that is used to compute those potential nodes
 from where pods could be evicted. Any node, between the thresholds, `thresholds` and `targetThresholds` is
@@ -82,7 +99,7 @@ considered appropriately utilized and is not considered for eviction. The thresh
 can be configured for cpu, memory, and number of pods too in terms of percentage.
 
 These thresholds, `thresholds` and `targetThresholds`, could be tuned as per your cluster requirements.
-An example of the policy for this strategy would look like:
+Here is an example of a policy for this strategy:
 
 ```
 apiVersion: "descheduler/v1alpha1"
@@ -102,43 +119,186 @@ strategies:
            "pods": 50
 ```
 
-There is another parameter associated with `LowNodeUtilization` strategy, called `numberOfNodes`.
-This parameter can be configured to activate the strategy only when number of under utilized nodes
+There is another parameter associated with the `LowNodeUtilization` strategy, called `numberOfNodes`.
+This parameter can be configured to activate the strategy only when the number of under utilized nodes
 are above the configured value. This could be helpful in large clusters where a few nodes could go
 under utilized frequently or for a short period of time. By default, `numberOfNodes` is set to zero.
 
+### RemovePodsViolatingInterPodAntiAffinity
+
+This strategy makes sure that pods violating interpod anti-affinity are removed from nodes. For example,
+if there is podA on a node and podB and podC (running on the same node) have anti-affinity rules which prohibit
+them to run on the same node, then podA will be evicted from the node so that podB and podC could run. This
+issue could happen, when the anti-affinity rules for podB and podC are created when they are already running on
+node. Currently, there are no parameters associated with this strategy. To disable this strategy, the
+policy should look like:
+
+```
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingInterPodAntiAffinity":
+     enabled: false
+```
+
+### RemovePodsViolatingNodeAffinity
+
+This strategy makes sure all pods violating
+[node affinity](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#node-affinity)
+are eventually removed from nodes. Node affinity rules allow a pod to specify
+`requiredDuringSchedulingIgnoredDuringExecution` type, which tells the scheduler
+to respect node affinity when scheduling the pod but kubelet to ignore
+in case node changes over time and no longer respects the affinity.
+When enabled, the strategy serves as a temporary implementation
+of `requiredDuringSchedulingRequiredDuringExecution` and evicts pod for kubelet
+that no longer respects node affinity.
+
+For example, there is podA scheduled on nodeA which satisfies the node
+affinity rule `requiredDuringSchedulingIgnoredDuringExecution` at the time
+of scheduling. Over time nodeA stops to satisfy the rule. When the strategy gets
+executed and there is another node available that satisfies the node affinity rule,
+podA gets evicted from nodeA.
+
+The policy file should look like:
+
+```
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingNodeAffinity":
+    enabled: true
+    params:
+      nodeAffinityType:
+      - "requiredDuringSchedulingIgnoredDuringExecution"
+```
+
+### RemovePodsViolatingNodeTaints
+
+This strategy makes sure that pods violating NoSchedule taints on nodes are removed. For example there is a
+pod "podA" with a toleration to tolerate a taint ``key=value:NoSchedule`` scheduled and running on the tainted
+node. If the node's taint is subsequently updated/removed, taint is no longer satisfied by its pods' tolerations
+and will be evicted. The policy file should look like:
+
+````
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingNodeTaints":
+    enabled: true
+````
+
+### RemovePodsHavingTooManyRestarts
+
+This strategy makes sure that pods having too many restarts are removed from nodes. For example a pod with EBS/PD that can't get the volume/disk attached to the instance, then the pod should be re-scheduled to other nodes.
+
+```
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsHavingTooManyRestarts":
+     enabled: true
+     params:
+       podsHavingTooManyRestarts:
+         podRestartThreshold: 100
+         includingInitContainers: true
+```
+
+### PodLifeTime
+
+This strategy evicts pods that are older than `.strategies.PodLifeTime.params.maxPodLifeTimeSeconds` The policy
+file should look like:
+
+````
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+        maxPodLifeTimeSeconds: 86400
+````
+
 ## Pod Evictions
 
-When the descheduler decides to evict pods from a node, it employs following general mechanism:
+When the descheduler decides to evict pods from a node, it employs the following general mechanism:
 
-* Critical pods (with annotations scheduler.alpha.kubernetes.io/critical-pod) are never evicted. 
-* Pods (static or mirrored pods or stand alone pods) not part of an RC, RS, Deployment or Jobs are
+* [Critical pods](https://kubernetes.io/docs/tasks/administer-cluster/guaranteed-scheduling-critical-addon-pods/) (with priorityClassName set to system-cluster-critical or system-node-critical) are never evicted.
+* Pods (static or mirrored pods or stand alone pods) not part of an RC, RS, Deployment or Job are
 never evicted because these pods won't be recreated.
 * Pods associated with DaemonSets are never evicted.
 * Pods with local storage are never evicted.
-* Best efforts pods are evicted before Burstable and Guaranteed pods. 
+* Best efforts pods are evicted before burstable and guaranteed pods.
+* All types of pods with the annotation descheduler.alpha.kubernetes.io/evict are evicted. This
+  annotation is used to override checks which prevent eviction and users can select which pod is evicted.
+  Users should know how and if the pod will be recreated.
 
-### Pod disruption Budget (PDB)
-Pods subject to Pod Disruption Budget (PDB) are not evicted if descheduling violates its pod
-disruption budget (PDB). The pods are evicted by using eviction subresource to handle PDB.
+### Pod Disruption Budget (PDB)
+
+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.
+
+## Compatibility Matrix
+The below compatibility matrix shows the k8s client package(client-go, apimachinery, etc) versions that descheduler
+is compiled with. At this time descheduler does not have a hard dependency to a specific k8s release. However a
+particular descheduler release is only tested against the three latest k8s minor versions. For example descheduler
+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
+-------------|-----------------------------
+v0.18        | v1.18
+v0.10        | v1.17
+v0.4-v0.9    | v1.9+
+v0.1-v0.3    | v1.7-v1.8
+
+
+## Getting Involved and Contributing
+
+Are you interested in contributing to descheduler? We, the
+maintainers and community, would love your suggestions, contributions, and help!
+Also, the maintainers can be contacted at any time to learn more about how to get
+involved.
+
+To get started writing code see the [contributor guide](docs/contributor-guide.md) in the `/docs` directory.
+
+In the interest of getting more new people involved we tag issues with
+[`good first issue`][good_first_issue].
+These are typically issues that have smaller scope but are good ways to start
+to get acquainted with the codebase.
+
+We also encourage ALL active community participants to act as if they are
+maintainers, even if you don't have "official" write permissions. This is a
+community effort, we are here to serve the Kubernetes community. If you have an
+active interest and you want to get involved, you have real power! Don't assume
+that the only people who can get things done around here are the "maintainers".
+
+We also would love to add more "official" maintainers, so show us what you can
+do!
+
+This repository uses the Kubernetes bots. See a full list of the commands [here][prow].
+
+### Communicating With Contributors
+
+You can reach the contributors of this project at:
+
+- [Slack channel](https://kubernetes.slack.com/messages/sig-scheduling)
+- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-scheduling)
+
+Learn how to engage with the Kubernetes community on the [community page](http://kubernetes.io/community/).
 
 ## Roadmap
 
 This roadmap is not in any particular order.
 
-* Addition of test cases (unit and end-to-end)
-* Ability to run inside a pod as a job
-* Strategy to consider taints and tolerations
-* Consideration of pod affinity and anti-affinity
-* Strategy to consider pod life time
+* Consideration of pod affinity
 * Strategy to consider number of pending pods
 * Integration with cluster autoscaler
 * Integration with metrics providers for obtaining real load metrics
 * Consideration of Kubernetes's scheduler's predicates
 
 
-## Note
+### Code of conduct
 
-This project is under active development, and is not intended for production use.
-Any api could be changed any time with out any notice. That said, your feedback is
-very important and appreciated to make this project more stable and useful.
+Participation in the Kubernetes community is governed by the [Kubernetes Code of Conduct](code-of-conduct.md).

SECURITY_CONTACTS

@@ -0,0 +1,15 @@
+# Defined below are the security contacts for this repo.
+#
+# They are the contact point for the Product Security Team to reach out
+# to for triaging and handling of incoming issues.
+#
+# The below names agree to abide by the
+# [Embargo Policy](https://github.com/kubernetes/sig-release/blob/master/security-release-process-documentation/security-release-process.md#embargo-policy)
+# and will be removed and replaced if they violate that agreement.
+#
+# DO NOT REPORT SECURITY VULNERABILITIES DIRECTLY TO THESE NAMES, FOLLOW THE
+# INSTRUCTIONS AT https://kubernetes.io/security/
+
+aveshagarwal
+k82cn
+ravisantoshgudimetla

charts/descheduler/.helmignore

@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/descheduler/Chart.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+name: descheduler
+version: 0.18.0
+appVersion: 0.18.0
+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
+- descheduler
+- kube-scheduler
+home: https://github.com/kubernetes-sigs/descheduler
+icon: https://kubernetes.io/images/favicon.png
+sources:
+- https://github.com/kubernetes-sigs/descheduler
+maintainers:
+- name: stevehipwell
+  email: steve.hipwell@github.com

charts/descheduler/README.md

@@ -0,0 +1,59 @@
+# Descheduler for Kubernetes
+
+[Descheduler](https://github.com/kubernetes-sigs/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.
+
+## TL;DR:
+
+```shell
+helm repo add descheduler https://kubernetes-sigs.github.io/descheduler/
+$ helm install descheduler/descheduler --name my-release
+```
+
+## Introduction
+
+This chart bootstraps a [desheduler](https://github.com/kubernetes-sigs/descheduler/) cron job on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.14+
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```shell
+helm install --name my-release descheduler/descheduler
+```
+
+The command deploys _descheduler_ on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
+
+> **Tip**: List all releases using `helm list`
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```shell
+helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters of the _descheduler_ chart and their default values.
+
+| Parameter                      | Description                                                                                                           | Default                                                |
+| ------------------------------ | --------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ |
+| `image.repository`             | Docker repository to use                                                                                              | `us.gcr.io/k8s-artifacts-prod/descheduler/descheduler` |
+| `image.tag`                    | Docker tag to use                                                                                                     | `v[chart appVersion]`                                              |
+| `image.pullPolicy`             | Docker image pull policy                                                                                              | `IfNotPresent`                                         |
+| `nameOverride`                 | String to partially override `descheduler.fullname` template (will prepend the release name)                          | `""`                                                   |
+| `fullnameOverride`             | String to fully override `descheduler.fullname` template                                                              | `""`                                                   |
+| `schedule`                     | The cron schedule to run the _descheduler_ job on                                                                     | `"*/2 * * * *"`                                        |
+| `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`                                                 |
+| `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`                                                  |

charts/descheduler/templates/NOTES.txt

@@ -0,0 +1 @@
+Descheduler installed as a cron job.

charts/descheduler/templates/_helpers.tpl

@@ -0,0 +1,56 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "descheduler.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "descheduler.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "descheduler.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "descheduler.labels" -}}
+app.kubernetes.io/name: {{ include "descheduler.name" . }}
+helm.sh/chart: {{ include "descheduler.chart" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "descheduler.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "descheduler.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/descheduler/templates/clusterrole.yaml

@@ -0,0 +1,21 @@
+{{- if .Values.rbac.create -}}
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+rules:
+- apiGroups: [""]
+  resources: ["events"]
+  verbs: ["create", "update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list", "delete"]
+- apiGroups: [""]
+  resources: ["pods/eviction"]
+  verbs: ["create"]
+{{- end -}}

charts/descheduler/templates/clusterrolebinding.yaml

@@ -0,0 +1,16 @@
+{{- if .Values.rbac.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ template "descheduler.fullname" . }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ template "descheduler.serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+{{- end -}}

charts/descheduler/templates/configmap.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+data:
+  policy.yaml: |
+    apiVersion: "descheduler/v1alpha1"
+    kind: "DeschedulerPolicy"
+{{ toYaml .Values.deschedulerPolicy | trim | indent 4 }}

charts/descheduler/templates/cronjob.yaml

@@ -0,0 +1,53 @@
+apiVersion: batch/v1beta1
+kind: CronJob
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+spec:
+  schedule: {{ .Values.schedule | quote }}
+  concurrencyPolicy: "Forbid"
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          name: {{ template "descheduler.fullname" . }}
+          annotations:
+            checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+            {{- if .Values.podAnnotations }}
+            {{- .Values.podAnnotations | toYaml | nindent 12 }}
+            {{- end }}
+          labels:
+            app.kubernetes.io/name: {{ include "descheduler.name" . }}
+            app.kubernetes.io/instance: {{ .Release.Name }}
+            {{- if .Values.podLabels }}
+            {{- .Values.podLabels | toYaml | nindent 12 }}
+            {{- end }}
+        spec:
+          {{- if .Values.priorityClassName }}
+          priorityClassName: {{ .Values.priorityClassName }}
+          {{- end }}
+          serviceAccountName: {{ template "descheduler.serviceAccountName" . }}
+          restartPolicy: "Never"
+          containers:
+            - name: {{ .Chart.Name }}
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (printf "v%s" .Chart.AppVersion) }}"
+              imagePullPolicy: {{ .Values.image.pullPolicy }}
+              command:
+                - "/bin/descheduler"
+              args:
+                - "--policy-config-file"
+                - "/policy-dir/policy.yaml"
+                {{- range $key, $value := .Values.cmdOptions }}
+                - {{ printf "--%s" $key | quote }}
+                {{- if $value }}
+                - {{ $value | quote }}
+                {{- end }}
+                {{- end }}
+              volumeMounts:
+                - mountPath: /policy-dir
+                  name: policy-volume
+          volumes:
+          - name: policy-volume
+            configMap:
+              name: {{ template "descheduler.fullname" . }}

charts/descheduler/templates/serviceaccount.yaml

@@ -0,0 +1,8 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "descheduler.serviceAccountName" . }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+{{- end -}}

charts/descheduler/values.yaml

@@ -0,0 +1,59 @@
+# Default values for descheduler.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+image:
+  repository: us.gcr.io/k8s-artifacts-prod/descheduler/descheduler
+  # Overrides the image tag whose default is the chart version
+  tag: ""
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+schedule: "*/2 * * * *"
+
+cmdOptions:
+  v: 3
+  # evict-local-storage-pods:
+  # max-pods-to-evict-per-node: 10
+  # node-selector: "key1=value1,key2=value2"
+
+deschedulerPolicy:
+  strategies:
+    RemoveDuplicates:
+      enabled: true
+    RemovePodsViolatingNodeTaints:
+      enabled: true
+    RemovePodsViolatingNodeAffinity:
+      enabled: true
+      params:
+         nodeAffinityType:
+         - requiredDuringSchedulingIgnoredDuringExecution
+    RemovePodsViolatingInterPodAntiAffinity:
+      enabled: true
+    LowNodeUtilization:
+      enabled: true
+      params:
+        nodeResourceUtilizationThresholds:
+          thresholds:
+            cpu: 20
+            memory: 20
+            pods: 20
+          targetThresholds:
+            cpu: 50
+            memory: 50
+            pods: 50
+
+priorityClassName: system-cluster-critical
+
+rbac:
+  # Specifies whether RBAC resources should be created
+  create: true
+
+serviceAccount:
+  # Specifies whether a ServiceAccount should be created
+  create: true
+  # The name of the ServiceAccount to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name:

cloudbuild.yaml

@@ -0,0 +1,24 @@
+# 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
+# this prevents errors if you don't use both _GIT_TAG and _PULL_BASE_REF,
+# or any new substitutions added in the future.
+options:
+  substitution_option: ALLOW_LOOSE
+steps:
+  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20190906-745fed4'
+    entrypoint: make
+    env:
+    - DOCKER_CLI_EXPERIMENTAL=enabled
+    - VERSION=$_GIT_TAG
+    - BASE_REF=$_PULL_BASE_REF
+    args:
+    - push
+substitutions:
+  # _GIT_TAG will be filled with a git-based tag for the image, of the form vYYYYMMDD-hash, and
+  # can be used as a substitution
+  _GIT_TAG: '12345'
+  # _PULL_BASE_REF will contain the ref that was pushed to to trigger this build -
+  # a branch like 'master' or 'release-0.2', or a tag like 'v0.2'.
+  _PULL_BASE_REF: 'master'

cmd/descheduler/app/options/options.go

@@ -18,13 +18,12 @@ limitations under the License.
 package options
 
 import (
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	clientset "k8s.io/client-go/kubernetes"
 
 	// install the componentconfig api so we get its defaulting and conversion functions
-	"github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig"
-	_ "github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig/install"
-	"github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig/v1alpha1"
-	deschedulerscheme "github.com/kubernetes-incubator/descheduler/pkg/descheduler/scheme"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig/v1alpha1"
+	deschedulerscheme "sigs.k8s.io/descheduler/pkg/descheduler/scheme"
 
 	"github.com/spf13/pflag"
 )
@@ -49,8 +48,14 @@ func NewDeschedulerServer() *DeschedulerServer {
 
 // AddFlags adds flags for a specific SchedulerServer to the specified FlagSet
 func (rs *DeschedulerServer) AddFlags(fs *pflag.FlagSet) {
-	fs.DurationVar(&rs.DeschedulingInterval, "descheduling-interval", rs.DeschedulingInterval, "time interval between two consecutive descheduler executions")
-	fs.StringVar(&rs.KubeconfigFile, "kubeconfig-file", rs.KubeconfigFile, "File with  kube configuration.")
+	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.")
+	// node-selector query causes descheduler to run only on nodes that matches the node labels in the query
+	fs.StringVar(&rs.NodeSelector, "node-selector", rs.NodeSelector, "Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)")
+	// max-no-pods-to-evict limits the maximum number of pods to be evicted per node by descheduler.
+	fs.IntVar(&rs.MaxNoOfPodsToEvictPerNode, "max-pods-to-evict-per-node", rs.MaxNoOfPodsToEvictPerNode, "Limits the maximum number of pods to be evicted per node by descheduler")
+	// evict-local-storage-pods allows eviction of pods that are using local storage. This is false by default.
+	fs.BoolVar(&rs.EvictLocalStoragePods, "evict-local-storage-pods", rs.EvictLocalStoragePods, "Enables evicting pods using local storage by descheduler")
 }

cmd/descheduler/app/server.go

@@ -18,32 +18,41 @@ limitations under the License.
 package app
 
 import (
-	"fmt"
+	"flag"
+	"io"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app/options"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
+	"sigs.k8s.io/descheduler/pkg/descheduler"
 
 	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
+
+	aflag "k8s.io/component-base/cli/flag"
+	"k8s.io/component-base/logs"
+	"k8s.io/klog"
 )
 
 // NewDeschedulerCommand creates a *cobra.Command object with default parameters
-func NewDeschedulerCommand() *cobra.Command {
+func NewDeschedulerCommand(out io.Writer) *cobra.Command {
 	s := options.NewDeschedulerServer()
-	s.AddFlags(pflag.CommandLine)
 	cmd := &cobra.Command{
 		Use:   "descheduler",
 		Short: "descheduler",
 		Long:  `The descheduler evicts pods which may be bound to less desired nodes`,
 		Run: func(cmd *cobra.Command, args []string) {
+			logs.InitLogs()
+			defer logs.FlushLogs()
 			err := Run(s)
 			if err != nil {
-				fmt.Println(err)
+				klog.Errorf("%v", err)
 			}
-
 		},
 	}
+	cmd.SetOutput(out)
 
+	flags := cmd.Flags()
+	flags.SetNormalizeFunc(aflag.WordSepNormalizeFunc)
+	flags.AddGoFlagSet(flag.CommandLine)
+	s.AddFlags(flags)
 	return cmd
 }
 

cmd/descheduler/app/version.go

@@ -0,0 +1,87 @@
+/*
+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 app
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	// gitCommit is a constant representing the source version that
+	// generated this build. It should be set during build via -ldflags.
+	gitCommit string
+	// version is a constant representing the version tag that
+	// generated this build. It should be set during build via -ldflags.
+	version string
+	// buildDate in ISO8601 format, output of $(date -u +'%Y-%m-%dT%H:%M:%SZ')
+	//It should be set during build via -ldflags.
+	buildDate string
+)
+
+// Info holds the information related to descheduler app version.
+type Info struct {
+	Major      string `json:"major"`
+	Minor      string `json:"minor"`
+	GitCommit  string `json:"gitCommit"`
+	GitVersion string `json:"gitVersion"`
+	BuildDate  string `json:"buildDate"`
+	GoVersion  string `json:"goVersion"`
+	Compiler   string `json:"compiler"`
+	Platform   string `json:"platform"`
+}
+
+// Get returns the overall codebase version. It's for detecting
+// what code a binary was built from.
+func Get() Info {
+	majorVersion, minorVersion := splitVersion(version)
+	return Info{
+		Major:      majorVersion,
+		Minor:      minorVersion,
+		GitCommit:  gitCommit,
+		GitVersion: version,
+		BuildDate:  buildDate,
+		GoVersion:  runtime.Version(),
+		Compiler:   runtime.Compiler,
+		Platform:   fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH),
+	}
+}
+
+func NewVersionCommand() *cobra.Command {
+	var versionCmd = &cobra.Command{
+		Use:   "version",
+		Short: "Version of descheduler",
+		Long:  `Prints the version of descheduler.`,
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("Descheduler version %+v\n", Get())
+		},
+	}
+	return versionCmd
+}
+
+// splitVersion splits the git version to generate major and minor versions needed.
+func splitVersion(version string) (string, string) {
+	if version == "" {
+		return "", ""
+	}
+	// A sample version would be of form v0.1.0-7-ge884046, so split at first '.' and
+	// then return 0 and 1+(+ appended to follow semver convention) for major and minor versions.
+	return strings.Trim(strings.Split(version, ".")[0], "v"), strings.Split(version, ".")[1] + "+"
+}

cmd/descheduler/descheduler.go

@@ -17,14 +17,18 @@ limitations under the License.
 package main
 
 import (
+	"flag"
 	"fmt"
 	"os"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app"
 )
 
 func main() {
-	cmd := app.NewDeschedulerCommand()
+	out := os.Stdout
+	cmd := app.NewDeschedulerCommand(out)
+	cmd.AddCommand(app.NewVersionCommand())
+	flag.CommandLine.Parse([]string{})
 	if err := cmd.Execute(); err != nil {
 		fmt.Println(err)
 		os.Exit(1)

code-of-conduct.md

@@ -1,58 +1,3 @@
-## Kubernetes Community Code of Conduct
+# Kubernetes Community Code of Conduct
 
-### Contributor Code of Conduct
-
-As contributors and maintainers of this project, and in the interest of fostering
-an open and welcoming community, we pledge to respect all people who contribute
-through reporting issues, posting feature requests, updating documentation,
-submitting pull requests or patches, and other activities.
-
-We are committed to making participation in this project a harassment-free experience for
-everyone, regardless of level of experience, gender, gender identity and expression,
-sexual orientation, disability, personal appearance, body size, race, ethnicity, age,
-religion, or nationality.
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery
-* Personal attacks
-* Trolling or insulting/derogatory comments
-* Public or private harassment
-* Publishing other's private information, such as physical or electronic addresses,
- without explicit permission
-* Other unethical or unprofessional conduct.
-
-Project maintainers have the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are not
-aligned to this Code of Conduct. By adopting this Code of Conduct, project maintainers
-commit themselves to fairly and consistently applying these principles to every aspect
-of managing this project. Project maintainers who do not follow or enforce the Code of
-Conduct may be permanently removed from the project team.
-
-This code of conduct applies both within project spaces and in public spaces
-when an individual is representing the project or its community.
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting a Kubernetes maintainer, Sarah Novotny <sarahnovotny@google.com>, and/or Dan Kohn <dan@linuxfoundation.org>.
-
-This Code of Conduct is adapted from the Contributor Covenant
-(http://contributor-covenant.org), version 1.2.0, available at
-http://contributor-covenant.org/version/1/2/0/
-
-### Kubernetes Events Code of Conduct
-
-Kubernetes events are working conferences intended for professional networking and collaboration in the
-Kubernetes community. Attendees are expected to behave according to professional standards and in accordance
-with their employer's policies on appropriate workplace behavior.
-
-While at Kubernetes events or related social networking opportunities, attendees should not engage in
-discriminatory or offensive speech or actions regarding gender, sexuality, race, or religion. Speakers should
-be especially aware of these concerns.
-
-The Kubernetes team does not condone any statements by speakers contrary to these standards.  The Kubernetes
-team reserves the right to deny entrance and/or eject from an event (without refund) any individual found to
-be engaging in discriminatory or offensive speech or actions.
-
-Please bring any concerns to to the immediate attention of Kubernetes event staff
-
-
-[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/code-of-conduct.md?pixel)]()
+Please refer to our [Kubernetes Community Code of Conduct](https://git.k8s.io/community/code-of-conduct.md)

docs/README.md

@@ -0,0 +1,5 @@
+# Documentation Index
+
+- [Contributor Guide](contributor-guide.md)
+- [Release Guide](release-guide.md)
+- [User Guide](user-guide.md)

docs/contributor-guide.md

@@ -0,0 +1,42 @@
+# Contributor Guide
+
+## Required Tools
+
+- [Git](https://git-scm.com/downloads)
+- [Go 1.13+](https://golang.org/dl/)
+- [Docker](https://docs.docker.com/install/)
+- [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl)
+- [kind](https://kind.sigs.k8s.io/)
+
+## Build and Run
+
+Build descheduler.
+```sh
+cd $GOPATH/src/sigs.k8s.io
+git clone https://github.com/kubernetes-sigs/descheduler.git
+cd descheduler
+make
+```
+
+Run descheduler.
+```sh
+./_output/bin/descheduler --kubeconfig <path to kubeconfig> --policy-config-file <path-to-policy-file> --v 1
+```
+
+View all CLI options.
+```
+./_output/bin/descheduler --help
+```
+
+## Run Tests
+```
+GOOS=linux make dev-image
+kind create cluster --config hack/kind_config.yaml
+kind load docker-image <image name>
+kind get kubeconfig > /tmp/admin.conf
+make test-unit
+make test-e2e
+```
+
+### Miscellaneous
+See the [hack directory](https://github.com/kubernetes-sigs/descheduler/tree/master/hack) for additional tools and scripts used for developing the descheduler.

docs/release-guide.md

@@ -0,0 +1,66 @@
+# Release Guide
+
+## Container Image
+
+### Semi-automatic
+
+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 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/master/k8s.gcr.io#image-promoter)
+7. Publish release
+8. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+### Manual
+
+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 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`
+7. Publish a draft release using the tag you just created
+8. Perform the [image promotion process](https://github.com/kubernetes/k8s.io/tree/master/k8s.gcr.io#image-promoter)
+9. Publish release
+10. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+### Notes
+See [post-descheduler-push-images dashboard](https://testgrid.k8s.io/sig-scheduling#post-descheduler-push-images) for staging registry image build job status.
+
+List images in staging registry.
+```
+gcloud container images list --repository gcr.io/k8s-staging-descheduler
+```
+
+List descheduler image tags in the staging registry.
+```
+gcloud container images list-tags gcr.io/k8s-staging-descheduler/descheduler
+```
+
+Get SHA256 hash for a specific image in the staging registry.
+```
+gcloud container images describe gcr.io/k8s-staging-descheduler/descheduler:v20200206-0.9.0-94-ge2a23f284
+```
+
+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 `chart-*`. Example git tag name is `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 a `chart-*` git tag is created.
+
+The major and minor version of the chart matches the descheduler major and minor versions. For example descheduler helm chart version 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 appropriate release branch(i.e. release-1.18)
+   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. Create the tag and push it `git checkout release-1.18; CHART_VERSION=chart-0.18.0; git tag $CHART_VERSION; git push origin $CHART_VERSION`
+4. Verify the new helm artifact has been successfully pushed to the `gh-pages` branch

docs/user-guide.md

@@ -0,0 +1,90 @@
+# User Guide
+
+Starting with descheduler release v0.10.0 container images are available in these container registries.
+* `asia.gcr.io/k8s-artifacts-prod/descheduler/descheduler`
+* `eu.gcr.io/k8s-artifacts-prod/descheduler/descheduler`
+* `us.gcr.io/k8s-artifacts-prod/descheduler/descheduler`
+
+## Policy Configuration Examples
+The [examples](https://github.com/kubernetes-sigs/descheduler/tree/master/examples) directory has descheduler policy configuration examples.
+
+## CLI Options
+The descheduler has many CLI options that can be used to override its default behavior.
+```
+descheduler --help
+The descheduler evicts pods which may be bound to less desired nodes
+
+Usage:
+  descheduler [flags]
+  descheduler [command]
+
+Available Commands:
+  help        Help about any command
+  version     Version of descheduler
+
+Flags:
+      --add-dir-header                   If true, adds the file directory to the header
+      --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         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   Limits the maximum number of pods to be evicted per node by descheduler
+      --node-selector string             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
+
+Use "descheduler [command] --help" for more information about a command.
+```
+
+## Production Use Cases
+This section contains descriptions of real world production use cases.
+
+### Balance Cluster By Pod Age
+When initially migrating applications from a static virtual machine infrastructure to a cloud native k8s
+infrastructure there can be a tendency to treat application pods like static virtual machines. One approach
+to help prevent developers and operators from treating pods like virtual machines is to ensure that pods
+only run for a fixed amount
+of time.
+
+The `PodLifeTime` strategy can be used to ensure that old pods are evicted. It is recommended to create a
+[pod disruption budget](https://kubernetes.io/docs/tasks/run-application/configure-pdb/) for each
+application to ensure application availability.
+```
+descheduler -v=3 --evict-local-storage-pods --policy-config-file=pod-life-time.yml
+```
+
+This policy configuration file ensures that pods created more than 7 days ago are evicted.
+```
+---
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "LowNodeUtilization":
+    enabled: false
+  "RemoveDuplicates":
+    enabled: false
+  "RemovePodsViolatingInterPodAntiAffinity":
+    enabled: false
+  "RemovePodsViolatingNodeAffinity":
+    enabled: false
+  "RemovePodsViolatingNodeTaints":
+    enabled: false
+  "RemovePodsHavingTooManyRestarts":
+    enabled: false
+  "PodLifeTime":
+    enabled: true
+    params:
+      maxPodLifeTimeSeconds: 604800 # pods run for a maximum of 7 days
+```

examples/node-affinity.yml

@@ -0,0 +1,8 @@
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingNodeAffinity":
+    enabled: true
+    params:
+      nodeAffinityType:
+      - "requiredDuringSchedulingIgnoredDuringExecution"

examples/pod-life-time.yml

@@ -0,0 +1,20 @@
+---
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "LowNodeUtilization":
+    enabled: false
+  "RemoveDuplicates":
+    enabled: false
+  "RemovePodsViolatingInterPodAntiAffinity":
+    enabled: false
+  "RemovePodsViolatingNodeAffinity":
+    enabled: false
+  "RemovePodsViolatingNodeTaints":
+    enabled: false
+  "RemovePodsHavingTooManyRestarts":
+    enabled: false
+  "PodLifeTime":
+    enabled: true
+    params:
+      maxPodLifeTimeSeconds: 604800 # 7 days

examples/policy.yaml

@@ -3,6 +3,8 @@ kind: "DeschedulerPolicy"
 strategies:
   "RemoveDuplicates":
      enabled: true
+  "RemovePodsViolatingInterPodAntiAffinity":
+     enabled: true
   "LowNodeUtilization":
      enabled: true
      params:
@@ -15,3 +17,9 @@ strategies:
            "cpu" : 50
            "memory": 50
            "pods": 50
+  "RemovePodsHavingTooManyRestarts":
+     enabled: true
+     params:
+       podsHavingTooManyRestarts:
+         podRestartThresholds: 100
+         includingInitContainers: true

glide.lock

@@ -1,340 +0,0 @@
-hash: bf18ba8a038a73e8f11f808c8babdd34734279b050e0223f704eaabbd13830fd
-updated: 2017-08-05T10:03:09.300557448-04:00
-imports:
-- name: github.com/davecgh/go-spew
-  version: 5215b55f46b2b919f50a1df0eaa5886afe4e3b3d
-  subpackages:
-  - spew
-- name: github.com/docker/distribution
-  version: cd27f179f2c10c5d300e6d09025b538c475b0d51
-  subpackages:
-  - digest
-  - reference
-- name: github.com/emicklei/go-restful
-  version: ff4f55a206334ef123e4f79bbf348980da81ca46
-  subpackages:
-  - log
-- name: github.com/emicklei/go-restful-swagger12
-  version: dcef7f55730566d41eae5db10e7d6981829720f6
-- name: github.com/ghodss/yaml
-  version: 73d445a93680fa1a78ae23a5839bad48f32ba1ee
-- name: github.com/go-openapi/analysis
-  version: b44dc874b601d9e4e2f6e19140e794ba24bead3b
-- name: github.com/go-openapi/jsonpointer
-  version: 46af16f9f7b149af66e5d1bd010e3574dc06de98
-- name: github.com/go-openapi/jsonreference
-  version: 13c6e3589ad90f49bd3e3bbe2c2cb3d7a4142272
-- name: github.com/go-openapi/loads
-  version: 18441dfa706d924a39a030ee2c3b1d8d81917b38
-- name: github.com/go-openapi/spec
-  version: 6aced65f8501fe1217321abf0749d354824ba2ff
-- name: github.com/go-openapi/swag
-  version: 1d0bd113de87027671077d3c71eb3ac5d7dbba72
-- name: github.com/gogo/protobuf
-  version: c0656edd0d9eab7c66d1eb0c568f9039345796f7
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-  - plugin/compare
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-  - plugin/embedcheck
-  - plugin/enumstringer
-  - plugin/equal
-  - plugin/face
-  - plugin/gostring
-  - plugin/marshalto
-  - plugin/oneofcheck
-  - plugin/populate
-  - plugin/size
-  - plugin/stringer
-  - plugin/testgen
-  - plugin/union
-  - plugin/unmarshal
-  - proto
-  - protoc-gen-gogo/descriptor
-  - protoc-gen-gogo/generator
-  - protoc-gen-gogo/grpc
-  - protoc-gen-gogo/plugin
-  - sortkeys
-  - vanity
-  - vanity/command
-- name: github.com/golang/glog
-  version: 44145f04b68cf362d9c4df2182967c2275eaefed
-- name: github.com/google/gofuzz
-  version: 44d81051d367757e1c7c6a5a86423ece9afcf63c
-- name: github.com/hashicorp/golang-lru
-  version: a0d98a5f288019575c6d1f4bb1573fef2d1fcdc4
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-- name: github.com/howeyc/gopass
-  version: bf9dde6d0d2c004a008c27aaee91170c786f6db8
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-  version: 5b9ff866471762aa2ab2dced63c9fb6f53921342
-- name: github.com/kubernetes/repo-infra
-  version: f521b5d472e00e05da5394994942064510a6e8bf
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-  version: d5b7844b561a7bc640052f1b935f7b800330d7e0
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-  - jlexer
-  - jwriter
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-  version: 8a290539e2e8629dbc4e6bad948158f790ec31f4
-- name: github.com/PuerkitoBio/urlesc
-  version: 5bd2802263f21d8788851d5305584c82a5c75d7e
-- name: github.com/spf13/cobra
-  version: f62e98d28ab7ad31d707ba837a966378465c7b57
-- name: github.com/spf13/pflag
-  version: 9ff6c6923cfffbcd502984b8e0c80539a94968b7
-- name: github.com/ugorji/go
-  version: ded73eae5db7e7a0ef6f55aace87a2873c5d2b74
-  subpackages:
-  - codec
-  - codec/codecgen
-- name: golang.org/x/crypto
-  version: d172538b2cfce0c13cee31e647d0367aa8cd2486
-  subpackages:
-  - bcrypt
-  - blowfish
-  - curve25519
-  - ed25519
-  - ed25519/internal/edwards25519
-  - nacl/secretbox
-  - pkcs12
-  - pkcs12/internal/rc2
-  - poly1305
-  - salsa20/salsa
-  - ssh
-  - ssh/terminal
-- name: golang.org/x/net
-  version: f2499483f923065a842d38eb4c7f1927e6fc6e6d
-  subpackages:
-  - context
-  - context/ctxhttp
-  - html
-  - html/atom
-  - http2
-  - http2/hpack
-  - idna
-  - internal/timeseries
-  - lex/httplex
-  - proxy
-  - trace
-  - websocket
-- name: golang.org/x/sys
-  version: 8f0908ab3b2457e2e15403d3697c9ef5cb4b57a9
-  subpackages:
-  - unix
-  - windows
-- name: golang.org/x/text
-  version: 2910a502d2bf9e43193af9d68ca516529614eed3
-  subpackages:
-  - cases
-  - encoding
-  - encoding/internal
-  - encoding/internal/identifier
-  - encoding/unicode
-  - internal/tag
-  - internal/utf8internal
-  - language
-  - runes
-  - secure/bidirule
-  - secure/precis
-  - transform
-  - unicode/bidi
-  - unicode/norm
-  - width
-- name: gopkg.in/inf.v0
-  version: 3887ee99ecf07df5b447e9b00d9c0b2adaa9f3e4
-- name: gopkg.in/yaml.v2
-  version: 53feefa2559fb8dfa8d81baad31be332c97d6c77
-- name: k8s.io/apimachinery
-  version: abe34e4f5b4413c282a83011892cbeea5b32223b
-  subpackages:
-  - pkg/api/equality
-  - pkg/api/errors
-  - pkg/api/meta
-  - pkg/api/resource
-  - pkg/apimachinery
-  - pkg/apimachinery/announced
-  - pkg/apimachinery/registered
-  - pkg/apis/meta/v1
-  - pkg/apis/meta/v1/unstructured
-  - pkg/apis/meta/v1alpha1
-  - pkg/conversion
-  - pkg/conversion/queryparams
-  - pkg/conversion/unstructured
-  - pkg/fields
-  - pkg/labels
-  - pkg/openapi
-  - pkg/runtime
-  - pkg/runtime/schema
-  - pkg/runtime/serializer
-  - pkg/runtime/serializer/json
-  - pkg/runtime/serializer/protobuf
-  - pkg/runtime/serializer/recognizer
-  - pkg/runtime/serializer/streaming
-  - pkg/runtime/serializer/versioning
-  - pkg/selection
-  - pkg/types
-  - pkg/util/cache
-  - pkg/util/clock
-  - pkg/util/diff
-  - pkg/util/errors
-  - pkg/util/framer
-  - pkg/util/intstr
-  - pkg/util/json
-  - pkg/util/net
-  - pkg/util/rand
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-  - pkg/util/sets
-  - pkg/util/validation
-  - pkg/util/validation/field
-  - pkg/util/wait
-  - pkg/util/yaml
-  - pkg/version
-  - pkg/watch
-  - third_party/forked/golang/reflect
-- name: k8s.io/apiserver
-  version: ab57ed5a72c3b67058f665d660e23bae18339fc2
-- name: k8s.io/client-go
-  version: e356aa2e77ab4a5914c216c12ba14cce25a25ab0
-  subpackages:
-  - discovery
-  - kubernetes/scheme
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-  - pkg/apis/apps/v1beta1
-  - pkg/apis/authentication
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-  - pkg/apis/authentication/v1beta1
-  - pkg/apis/authorization
-  - pkg/apis/authorization/v1
-  - pkg/apis/authorization/v1beta1
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-  - pkg/apis/batch/v2alpha1
-  - pkg/apis/certificates
-  - pkg/apis/certificates/v1beta1
-  - pkg/apis/extensions
-  - pkg/apis/extensions/v1beta1
-  - pkg/apis/networking
-  - pkg/apis/networking/v1
-  - pkg/apis/policy
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-  - pkg/apis/rbac
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-  - pkg/apis/rbac/v1beta1
-  - pkg/apis/settings
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-  - pkg/apis/storage
-  - pkg/apis/storage/v1
-  - pkg/apis/storage/v1beta1
-  - pkg/util
-  - pkg/util/parsers
-  - pkg/version
-  - rest
-  - rest/watch
-  - tools/auth
-  - tools/cache
-  - tools/clientcmd
-  - tools/clientcmd/api
-  - tools/clientcmd/api/latest
-  - tools/clientcmd/api/v1
-  - tools/metrics
-  - transport
-  - util/cert
-  - util/flowcontrol
-  - util/homedir
-  - util/integer
-- name: k8s.io/gengo
-  version: c79c13d131b0a8f42d05faa6491c12e94ccc6f30
-- name: k8s.io/kubernetes
-  version: ebb8d6e0fadfc95f3d64ccecc36c8ed2ac9224ef
-  subpackages:
-  - pkg/api
-  - pkg/api/install
-  - pkg/api/v1
-  - pkg/api/v1/helper/qos
-  - pkg/api/v1/ref
-  - pkg/api/v1/resource
-  - pkg/apis/admissionregistration
-  - pkg/apis/admissionregistration/v1alpha1
-  - pkg/apis/apps
-  - pkg/apis/apps/install
-  - pkg/apis/apps/v1beta1
-  - pkg/apis/authentication
-  - pkg/apis/authentication/install
-  - pkg/apis/authentication/v1
-  - pkg/apis/authentication/v1beta1
-  - pkg/apis/authorization
-  - pkg/apis/authorization/install
-  - pkg/apis/authorization/v1
-  - pkg/apis/authorization/v1beta1
-  - pkg/apis/autoscaling
-  - pkg/apis/autoscaling/install
-  - pkg/apis/autoscaling/v1
-  - pkg/apis/autoscaling/v2alpha1
-  - pkg/apis/batch
-  - pkg/apis/batch/install
-  - pkg/apis/batch/v1
-  - pkg/apis/batch/v2alpha1
-  - pkg/apis/certificates
-  - pkg/apis/certificates/install
-  - pkg/apis/certificates/v1beta1
-  - pkg/apis/extensions
-  - pkg/apis/extensions/install
-  - pkg/apis/extensions/v1beta1
-  - pkg/apis/networking
-  - pkg/apis/networking/v1
-  - pkg/apis/policy
-  - pkg/apis/policy/install
-  - pkg/apis/policy/v1beta1
-  - pkg/apis/rbac
-  - pkg/apis/rbac/install
-  - pkg/apis/rbac/v1alpha1
-  - pkg/apis/rbac/v1beta1
-  - pkg/apis/settings
-  - pkg/apis/settings/install
-  - pkg/apis/settings/v1alpha1
-  - pkg/apis/storage
-  - pkg/apis/storage/install
-  - pkg/apis/storage/v1
-  - pkg/apis/storage/v1beta1
-  - pkg/client/clientset_generated/clientset
-  - pkg/client/clientset_generated/clientset/scheme
-  - pkg/client/clientset_generated/clientset/typed/admissionregistration/v1alpha1
-  - pkg/client/clientset_generated/clientset/typed/apps/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/authentication/v1
-  - pkg/client/clientset_generated/clientset/typed/authentication/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/authorization/v1
-  - pkg/client/clientset_generated/clientset/typed/authorization/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/autoscaling/v1
-  - pkg/client/clientset_generated/clientset/typed/autoscaling/v2alpha1
-  - pkg/client/clientset_generated/clientset/typed/batch/v1
-  - pkg/client/clientset_generated/clientset/typed/batch/v2alpha1
-  - pkg/client/clientset_generated/clientset/typed/certificates/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/core/v1
-  - pkg/client/clientset_generated/clientset/typed/extensions/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/networking/v1
-  - pkg/client/clientset_generated/clientset/typed/policy/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/rbac/v1alpha1
-  - pkg/client/clientset_generated/clientset/typed/rbac/v1beta1
-  - pkg/client/clientset_generated/clientset/typed/settings/v1alpha1
-  - pkg/client/clientset_generated/clientset/typed/storage/v1
-  - pkg/client/clientset_generated/clientset/typed/storage/v1beta1
-  - pkg/client/listers/core/v1
-  - pkg/kubelet/types
-  - pkg/util
-  - pkg/util/parsers
-testImports: []

glide.yaml

@@ -1,15 +0,0 @@
-package: github.com/kubernetes-incubator/descheduler
-import:
-- package: k8s.io/client-go
-  version: e356aa2e77ab4a5914c216c12ba14cce25a25ab0 # kube 1.7.0
-- package: k8s.io/apiserver
-  version: ab57ed5a72c3b67058f665d660e23bae18339fc2
-- package: k8s.io/apimachinery
-  version: abe34e4f5b4413c282a83011892cbeea5b32223b # kube 1.7.0
-- package: k8s.io/kubernetes
-  version: ebb8d6e0fadfc95f3d64ccecc36c8ed2ac9224ef # kube 1.7.0
-- package: github.com/kubernetes/repo-infra
-- package: github.com/spf13/cobra
-  version: f62e98d28ab7ad31d707ba837a966378465c7b57
-- package: k8s.io/gengo
-  version: c79c13d131b0a8f42d05faa6491c12e94ccc6f30

go.mod

@@ -0,0 +1,14 @@
+module sigs.k8s.io/descheduler
+
+go 1.13
+
+require (
+	github.com/spf13/cobra v0.0.5
+	github.com/spf13/pflag v1.0.5
+	k8s.io/api v0.18.2
+	k8s.io/apimachinery v0.18.2
+	k8s.io/apiserver v0.18.2
+	k8s.io/client-go v0.18.2
+	k8s.io/component-base v0.18.2
+	k8s.io/klog v1.0.0
+)

go.sum

@@ -0,0 +1,366 @@
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hack/e2e-gce/gcloud_create_cluster.sh

@@ -0,0 +1,95 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+echo "Make sure that uuid package is installed"
+
+master_uuid=$(uuid)
+node1_uuid=$(uuid)
+node2_uuid=$(uuid)
+kube_apiserver_port=6443
+kube_version=1.13.1
+
+DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/../../
+E2E_GCE_HOME=$DESCHEDULER_ROOT/hack/e2e-gce
+
+
+create_cluster() {
+	echo "#################### Creating instances ##########################"
+        gcloud compute instances create descheduler-$master_uuid --image="ubuntu-1604-xenial-v20180306" --image-project="ubuntu-os-cloud" --zone=us-east1-b
+	# Keeping the --zone here so as to make sure that e2e's can run locally.
+	echo "gcloud compute instances delete descheduler-$master_uuid --zone=us-east1-b --quiet" > $E2E_GCE_HOME/delete_cluster.sh
+       
+	gcloud compute instances create descheduler-$node1_uuid --image="ubuntu-1604-xenial-v20180306" --image-project="ubuntu-os-cloud" --zone=us-east1-b
+	echo "gcloud compute instances delete descheduler-$node1_uuid --zone=us-east1-b --quiet" >> $E2E_GCE_HOME/delete_cluster.sh
+
+	gcloud compute instances create descheduler-$node2_uuid --image="ubuntu-1604-xenial-v20180306" --image-project="ubuntu-os-cloud" --zone=us-east1-b
+	echo "gcloud compute instances delete descheduler-$node2_uuid --zone=us-east1-b --quiet" >> $E2E_GCE_HOME/delete_cluster.sh
+
+	# Delete the firewall port created for master.
+	echo "gcloud compute firewall-rules delete kubeapiserver-$master_uuid --quiet" >> $E2E_GCE_HOME/delete_cluster.sh
+	chmod 755 $E2E_GCE_HOME/delete_cluster.sh
+}
+
+
+generate_kubeadm_instance_files() {
+	# TODO: Check if they have come up. awk $6 contains the state(RUNNING or not).
+	master_private_ip=$(gcloud compute instances list | grep $master_uuid|awk '{print $4}')
+	node1_public_ip=$(gcloud compute instances list | grep $node1_uuid|awk '{print $5}')
+	node2_public_ip=$(gcloud compute instances list | grep $node2_uuid|awk '{print $5}')
+	echo "kubeadm init --kubernetes-version=${kube_version} --apiserver-advertise-address=${master_private_ip}" --ignore-preflight-errors=all --pod-network-cidr=10.96.0.0/12 > $E2E_GCE_HOME/kubeadm_install.sh
+}
+
+
+transfer_install_files() {
+	gcloud compute scp  $E2E_GCE_HOME/kubeadm_preinstall.sh descheduler-$master_uuid:/tmp --zone=us-east1-b
+	gcloud compute scp $E2E_GCE_HOME/kubeadm_install.sh descheduler-$master_uuid:/tmp --zone=us-east1-b
+	gcloud compute scp  $E2E_GCE_HOME/kubeadm_preinstall.sh descheduler-$node1_uuid:/tmp --zone=us-east1-b
+	gcloud compute scp  $E2E_GCE_HOME/kubeadm_preinstall.sh descheduler-$node2_uuid:/tmp --zone=us-east1-b
+}
+
+
+install_kube() {
+	# Docker installation.
+	gcloud compute ssh descheduler-$master_uuid --command "sudo apt-get update; sudo apt-get install -y docker.io" --zone=us-east1-b
+	gcloud compute ssh descheduler-$node1_uuid --command "sudo apt-get update; sudo apt-get install -y docker.io" --zone=us-east1-b
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo apt-get update; sudo apt-get install -y docker.io" --zone=us-east1-b
+	# kubeadm installation.
+	# 1. Transfer files to master, nodes.
+	transfer_install_files
+	# 2. Install kubeadm.
+	#TODO: Add rm /tmp/kubeadm_install.sh
+	# Open port for kube API server	
+	gcloud compute firewall-rules create kubeapiserver-$master_uuid --allow tcp:6443 --source-tags=descheduler-$master_uuid  --source-ranges=0.0.0.0/0 --description="Opening api server port" 
+
+	gcloud compute ssh descheduler-$master_uuid --command "sudo chmod 755 /tmp/kubeadm_preinstall.sh; sudo /tmp/kubeadm_preinstall.sh" --zone=us-east1-b
+	kubeadm_join_command=$(gcloud compute ssh descheduler-$master_uuid --command "sudo chmod 755 /tmp/kubeadm_install.sh; sudo /tmp/kubeadm_install.sh" --zone=us-east1-b|grep 'kubeadm join')
+	
+	# Copy the kubeconfig file onto /tmp for e2e tests. 
+	gcloud compute ssh descheduler-$master_uuid --command "sudo cp /etc/kubernetes/admin.conf /tmp; sudo chmod 777 /tmp/admin.conf" --zone=us-east1-b
+	gcloud compute scp descheduler-$master_uuid:/tmp/admin.conf /tmp/admin.conf --zone=us-east1-b
+
+	# Postinstall on master, need to add a network plugin for kube-dns to come to running state.
+	gcloud compute ssh descheduler-$master_uuid --command "sudo kubectl apply -f https://raw.githubusercontent.com/cloudnativelabs/kube-router/master/daemonset/kubeadm-kuberouter.yaml --kubeconfig /etc/kubernetes/admin.conf" --zone=us-east1-b
+	echo $kubeadm_join_command > $E2E_GCE_HOME/kubeadm_join.sh
+
+	# Copy kubeadm_join to every node. 
+	#TODO: Put these in a loop, so that extension becomes possible.	
+	gcloud compute ssh descheduler-$node1_uuid --command "sudo chmod 755 /tmp/kubeadm_preinstall.sh; sudo /tmp/kubeadm_preinstall.sh" --zone=us-east1-b
+	gcloud compute scp $E2E_GCE_HOME/kubeadm_join.sh descheduler-$node1_uuid:/tmp --zone=us-east1-b
+	gcloud compute ssh descheduler-$node1_uuid --command "sudo chmod 755 /tmp/kubeadm_join.sh; sudo /tmp/kubeadm_join.sh" --zone=us-east1-b
+	
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo chmod 755 /tmp/kubeadm_preinstall.sh; sudo /tmp/kubeadm_preinstall.sh" --zone=us-east1-b
+	gcloud compute scp $E2E_GCE_HOME/kubeadm_join.sh descheduler-$node2_uuid:/tmp --zone=us-east1-b
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo chmod 755 /tmp/kubeadm_join.sh; sudo /tmp/kubeadm_join.sh" --zone=us-east1-b
+
+}
+
+
+create_cluster
+
+generate_kubeadm_instance_files
+
+install_kube

hack/e2e-gce/gcloud_sdk_configure.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -e
+
+
+gcloud auth activate-service-account --key-file "${GCE_SA_CREDS}"
+gcloud config set project $GCE_PROJECT_ID
+gcloud config set compute/zone $GCE_ZONE

hack/e2e-gce/install_gcloud.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+wget https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-sdk-176.0.0-linux-x86_64.tar.gz
+
+tar -xvzf google-cloud-sdk-176.0.0-linux-x86_64.tar.gz
+
+./google-cloud-sdk/install.sh -q

hack/e2e-gce/kubeadm_preinstall.sh

@@ -0,0 +1,11 @@
+apt-get update
+apt-get install -y docker.io
+
+apt-get update && apt-get install -y apt-transport-https
+curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
+cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
+deb http://apt.kubernetes.io/ kubernetes-xenial main
+EOF
+apt-get update
+apt-get install -y kubelet kubeadm kubectl
+exit 0

hack/kind_config.yaml

@@ -0,0 +1,6 @@
+kind: Cluster
+apiVersion: kind.sigs.k8s.io/v1alpha3
+nodes:
+- role: control-plane
+- role: worker
+- role: worker

hack/lib/init.sh

@@ -43,5 +43,5 @@ OS_ROOT="$( os::util::absolute_path "${init_source}" )"
 export OS_ROOT
 cd "${OS_ROOT}"
 
-PRJ_PREFIX="github.com/kubernetes-incubator/descheduler"
+PRJ_PREFIX="sigs.k8s.io/descheduler"
 OS_OUTPUT_BINPATH="${OS_ROOT}/_output/bin"

hack/update-codecgen.sh

@@ -1,151 +0,0 @@
-#!/bin/bash
-
-# Copyright 2015 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.
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-
-# The sort at the end makes sure we feed the topological sort a deterministic
-# list (since there aren't many dependencies).
-
-generated_files=($(
-  find . -not \( \
-      \( \
-        -wholename './output' \
-        -o -wholename './_output' \
-        -o -wholename './staging' \
-        -o -wholename './release' \
-        -o -wholename './target' \
-        -o -wholename '*/third_party/*' \
-        -o -wholename '*/vendor/*' \
-        -o -wholename '*/codecgen-*-1234.generated.go' \
-      \) -prune \
-    \) -name '*.generated.go' | LC_ALL=C sort -r
-))
-
-# We only work for deps within this prefix.
-#my_prefix="k8s.io/kubernetes"
-my_prefix="github.com/kubernetes-incubator/descheduler"
-
-# Register function to be called on EXIT to remove codecgen
-# binary and also to touch the files that should be regenerated
-# since they are first removed.
-# This is necessary to make the script work after previous failure.
-function cleanup {
-  rm -f "${CODECGEN:-}"
-  pushd "${KUBE_ROOT}" > /dev/null
-  for (( i=0; i < number; i++ )); do
-    touch "${generated_files[${i}]}" || true
-  done
-  popd > /dev/null
-}
-trap cleanup EXIT
-
-# Precompute dependencies for all directories.
-# Then sort all files in the dependency order.
-number=${#generated_files[@]}
-result=""
-for (( i=0; i<number; i++ )); do
-  visited[${i}]=false
-  file="${generated_files[${i}]/\.generated\.go/.go}"
-  deps[${i}]=$(go list -f '{{range .Deps}}{{.}}{{"\n"}}{{end}}' ${file} | grep "^${my_prefix}")
-done
-###echo "DBG: found $number generated files"
-###for f in $(echo "${generated_files[@]}" | LC_ALL=C sort); do
-###    echo "DBG:   $f"
-###done
-
-# NOTE: depends function assumes that the whole repository is under
-# $my_prefix - it will NOT work if that is not true.
-function depends {
-  rhs="$(dirname ${generated_files[$2]/#./${my_prefix}})"
-  ###echo "DBG: does ${file} depend on ${rhs}?"
-  for dep in ${deps[$1]}; do
-    ###echo "DBG:   checking against $dep"
-    if [[ "${dep}" == "${rhs}" ]]; then
-      ###echo "DBG: = yes"
-      return 0
-    fi
-  done
-  ###echo "DBG: = no"
-  return 1
-}
-
-function tsort {
-  visited[$1]=true
-  local j=0
-  for (( j=0; j<number; j++ )); do
-    if ! ${visited[${j}]}; then
-      if depends "$1" ${j}; then
-        tsort $j
-      fi
-    fi
-  done
-  result="${result} $1"
-}
-echo "Building dependencies"
-for (( i=0; i<number; i++ )); do
-  ###echo "DBG: considering ${generated_files[${i}]}"
-  if ! ${visited[${i}]}; then
-    ###echo "DBG: tsorting ${generated_files[${i}]}"
-    tsort ${i}
-  fi
-done
-index=(${result})
-
-haveindex=${index:-}
-if [[ -z ${haveindex} ]]; then
-  echo No files found for $0
-  echo A previous run of $0 may have deleted all the files and then crashed.
-  echo Use 'touch' to create files named 'types.generated.go' listed as deleted in 'git status'
-  exit 1
-fi
-
-echo "Building codecgen"
-CODECGEN="${PWD}/codecgen_binary"
-go build -o "${CODECGEN}" ./vendor/github.com/ugorji/go/codec/codecgen
-
-# Running codecgen fails if some of the files doesn't compile.
-# Thus (since all the files are completely auto-generated and
-# not required for the code to be compilable, we first remove
-# them and the regenerate them.
-for (( i=0; i < number; i++ )); do
-  rm -f "${generated_files[${i}]}"
-done
-
-# Generate files in the dependency order.
-for current in "${index[@]}"; do
-  generated_file=${generated_files[${current}]}
-  initial_dir=${PWD}
-  file=${generated_file/\.generated\.go/.go}
-  echo "processing ${file}"
-  # codecgen work only if invoked from directory where the file
-  # is located.
-  pushd "$(dirname ${file})" > /dev/null
-  base_file=$(basename "${file}")
-  base_generated_file=$(basename "${generated_file}")
-  # We use '-d 1234' flag to have a deterministic output every time.
-  # The constant was just randomly chosen.
-  ###echo "DBG: running ${CODECGEN} -d 1234 -o ${base_generated_file} ${base_file}"
-  ${CODECGEN} -d 1234 -o "${base_generated_file}" "${base_file}"
-  # Add boilerplate at the beginning of the generated file.
-  sed 's/YEAR/2017/' "${initial_dir}/hack/boilerplate/boilerplate.go.txt" > "${base_generated_file}.tmp"
-  cat "${base_generated_file}" >> "${base_generated_file}.tmp"
-  mv "${base_generated_file}.tmp" "${base_generated_file}"
-  popd > /dev/null
-done

hack/update-generated-conversions.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/conversion-gen" "${PRJ_PREFIX}/vendor/k8s.io/kubernetes/cmd/libs/go2idl/conversion-gen"
+go build -o "${OS_OUTPUT_BINPATH}/conversion-gen" "k8s.io/code-generator/cmd/conversion-gen"
 
 ${OS_OUTPUT_BINPATH}/conversion-gen \
 		--go-header-file "hack/boilerplate/boilerplate.go.txt" \

hack/update-generated-deep-copies.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "${PRJ_PREFIX}/vendor/k8s.io/kubernetes/cmd/libs/go2idl/deepcopy-gen"
+go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "k8s.io/code-generator/cmd/deepcopy-gen"
 
 ${OS_OUTPUT_BINPATH}/deepcopy-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \

hack/update-generated-defaulters.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/defaulter-gen" "${PRJ_PREFIX}/vendor/k8s.io/kubernetes/cmd/libs/go2idl/defaulter-gen"
+go build -o "${OS_OUTPUT_BINPATH}/defaulter-gen" "k8s.io/code-generator/cmd/defaulter-gen"
 
 ${OS_OUTPUT_BINPATH}/defaulter-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \

hack/update-gofmt.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# 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.
+
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+GO_VERSION=($(go version))
+
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.2|go1.3|go1.4|go1.5|go1.6|go1.7|go1.8|go1.9|go1.10|go1.11|go1.12|go1.13') ]]; then
+  echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
+  exit 1
+fi
+
+cd "${DESCHEDULER_ROOT}"
+
+find_files() {
+  find . -not \( \
+      \( \
+        -wholename './output' \
+        -o -wholename './_output' \
+        -o -wholename './release' \
+        -o -wholename './target' \
+        -o -wholename './.git' \
+        -o -wholename '*/third_party/*' \
+        -o -wholename '*/Godeps/*' \
+        -o -wholename '*/vendor/*' \
+      \) -prune \
+    \) -name '*.go'
+}
+
+GOFMT="gofmt -s -w"
+find_files | xargs $GOFMT -l

hack/update-vendor.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# 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.
+
+
+source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+
+go mod tidy
+go mod vendor

hack/verify-gofmt.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# 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.
+
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+GO_VERSION=($(go version))
+
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.2|go1.3|go1.4|go1.5|go1.6|go1.7|go1.8|go1.9|go1.10|go1.11|go1.12|go1.13') ]]; then
+  echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
+  exit 1
+fi
+
+cd "${DESCHEDULER_ROOT}"
+
+find_files() {
+  find . -not \( \
+      \( \
+        -wholename './output' \
+        -o -wholename './_output' \
+        -o -wholename './release' \
+        -o -wholename './target' \
+        -o -wholename './.git' \
+        -o -wholename '*/third_party/*' \
+        -o -wholename '*/Godeps/*' \
+        -o -wholename '*/vendor/*' \
+      \) -prune \
+    \) -name '*.go'
+}
+
+GOFMT="gofmt -s"
+bad_files=$(find_files | xargs $GOFMT -l)
+if [[ -n "${bad_files}" ]]; then
+  echo "!!! '$GOFMT' needs to be run on the following files: "
+  echo "${bad_files}"
+  exit 1
+fi

hack/verify-vendor.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+# 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.
+
+# This is mostly copied from the hack/verify-vendor.sh script located in k8s.io/kubernetes
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+
+DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+mkdir -p "${DESCHEDULER_ROOT}/_tmp"
+_tmpdir="$(mktemp -d "${DESCHEDULER_ROOT}/_tmp/kube-vendor.XXXXXX")"
+
+if [[ -z ${KEEP_TMP:-} ]]; then
+    KEEP_TMP=false
+fi
+
+function cleanup {
+  # make go module dirs writeable
+  chmod -R +w "${_tmpdir}"
+  if [ "${KEEP_TMP}" == "true" ]; then
+    echo "Leaving ${_tmpdir} for you to examine or copy. Please delete it manually when finished. (rm -rf ${_tmpdir})"
+  else
+    echo "Removing ${_tmpdir}"
+    rm -rf "${_tmpdir}"
+  fi
+}
+trap "cleanup" EXIT
+
+_deschedulertmp="${_tmpdir}"
+mkdir -p "${_deschedulertmp}"
+
+git archive --format=tar --prefix=descheduler/ "$(git write-tree)" | (cd "${_deschedulertmp}" && tar xf -)
+_deschedulertmp="${_deschedulertmp}/descheduler"
+
+pushd "${_deschedulertmp}" > /dev/null 2>&1
+  # Destroy deps in the copy of the kube tree
+  rm -rf ./vendor
+
+  # Recreate the vendor tree using the nice clean set we just downloaded
+  hack/update-vendor.sh
+popd > /dev/null 2>&1
+
+ret=0
+
+pushd "${DESCHEDULER_ROOT}" > /dev/null 2>&1
+  # Test for diffs
+  if ! _out="$(diff -Naupr --ignore-matching-lines='^\s*\"GoVersion\":' go.mod "${_deschedulertmp}/go.mod")"; then
+    echo "Your go.mod file is different:" >&2
+    echo "${_out}" >&2
+    echo "Vendor Verify failed." >&2
+    echo "If you're seeing this locally, run the below command to fix your go.mod:" >&2
+    echo "hack/update-vendor.sh" >&2
+    ret=1
+  fi
+
+  if ! _out="$(diff -Naupr -x "BUILD" -x "AUTHORS*" -x "CONTRIBUTORS*" vendor "${_deschedulertmp}/vendor")"; then
+    echo "Your vendored results are different:" >&2
+    echo "${_out}" >&2
+    echo "Vendor Verify failed." >&2
+    echo "${_out}" > vendordiff.patch
+    echo "If you're seeing this locally, run the below command to fix your directories:" >&2
+    echo "hack/update-vendor.sh" >&2
+    ret=1
+  fi
+popd > /dev/null 2>&1
+
+if [[ ${ret} -gt 0 ]]; then
+  exit ${ret}
+fi
+
+echo "Vendor Verified."

kubernetes/configmap.yaml

@@ -0,0 +1,28 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: descheduler-policy-configmap
+  namespace: kube-system
+data:
+  policy.yaml: |
+    apiVersion: "descheduler/v1alpha1"
+    kind: "DeschedulerPolicy"
+    strategies:
+      "RemoveDuplicates":
+         enabled: true
+      "RemovePodsViolatingInterPodAntiAffinity":
+         enabled: true
+      "LowNodeUtilization":
+         enabled: true
+         params:
+           nodeResourceUtilizationThresholds:
+             thresholds:
+               "cpu" : 20
+               "memory": 20
+               "pods": 20
+             targetThresholds:
+               "cpu" : 50
+               "memory": 50
+               "pods": 50
+

kubernetes/cronjob.yaml

@@ -0,0 +1,35 @@
+---
+apiVersion: batch/v1beta1
+kind: CronJob
+metadata:
+  name: descheduler-cronjob
+  namespace: kube-system
+spec:
+  schedule: "*/2 * * * *"
+  concurrencyPolicy: "Forbid"
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          name: descheduler-pod
+        spec:
+          priorityClassName: system-cluster-critical
+          containers:
+          - name: descheduler
+            image: us.gcr.io/k8s-artifacts-prod/descheduler/descheduler:v0.18.0
+            volumeMounts:
+            - mountPath: /policy-dir
+              name: policy-volume
+            command:
+              - "/bin/descheduler"
+            args:
+              - "--policy-config-file"
+              - "/policy-dir/policy.yaml"
+              - "--v"
+              - "3"
+          restartPolicy: "Never"
+          serviceAccountName: descheduler-sa
+          volumes:
+          - name: policy-volume
+            configMap:
+              name: descheduler-policy-configmap

kubernetes/job.yaml

@@ -0,0 +1,33 @@
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: descheduler-job
+  namespace: kube-system
+spec:
+  parallelism: 1
+  completions: 1
+  template:
+    metadata:
+      name: descheduler-pod
+    spec:
+      priorityClassName: system-cluster-critical
+      containers:
+        - name: descheduler
+          image: us.gcr.io/k8s-artifacts-prod/descheduler/descheduler:v0.18.0
+          volumeMounts:
+          - mountPath: /policy-dir
+            name: policy-volume
+          command:
+            - "/bin/descheduler"
+          args:
+            - "--policy-config-file"
+            - "/policy-dir/policy.yaml"
+            - "--v"
+            - "3"
+      restartPolicy: "Never"
+      serviceAccountName: descheduler-sa
+      volumes:
+      - name: policy-volume
+        configMap:
+          name: descheduler-policy-configmap

kubernetes/rbac.yaml

@@ -0,0 +1,40 @@
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: descheduler-cluster-role
+  namespace: kube-system
+rules:
+- apiGroups: [""]
+  resources: ["events"]
+  verbs: ["create", "update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list", "delete"]
+- apiGroups: [""]
+  resources: ["pods/eviction"]
+  verbs: ["create"]
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: descheduler-sa
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: descheduler-cluster-role-binding
+  namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: descheduler-cluster-role
+subjects:
+  - name: descheduler-sa
+    kind: ServiceAccount
+    namespace: kube-system
+

pkg/api/doc.go

@@ -16,4 +16,4 @@ limitations under the License.
 
 // +k8s:deepcopy-gen=package,register
 
-package api // import "github.com/kubernetes-incubator/descheduler/pkg/api"
+package api // import "sigs.k8s.io/descheduler/pkg/api"

pkg/api/install/install.go

@@ -1,49 +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 install installs the descheduler's policy API group.
-package install
-
-import (
-	"k8s.io/apimachinery/pkg/apimachinery/announced"
-	"k8s.io/apimachinery/pkg/apimachinery/registered"
-	"k8s.io/apimachinery/pkg/runtime"
-
-	deschedulerapi "github.com/kubernetes-incubator/descheduler/pkg/api"
-	"github.com/kubernetes-incubator/descheduler/pkg/api/v1alpha1"
-	deschedulerscheme "github.com/kubernetes-incubator/descheduler/pkg/descheduler/scheme"
-)
-
-func init() {
-	Install(deschedulerscheme.GroupFactoryRegistry, deschedulerscheme.Registry, deschedulerscheme.Scheme)
-}
-
-// Install registers the API group and adds types to a scheme
-func Install(groupFactoryRegistry announced.APIGroupFactoryRegistry, registry *registered.APIRegistrationManager, scheme *runtime.Scheme) {
-	if err := announced.NewGroupMetaFactory(
-		&announced.GroupMetaFactoryArgs{
-			GroupName:                  deschedulerapi.GroupName,
-			VersionPreferenceOrder:     []string{v1alpha1.SchemeGroupVersion.Version},
-			ImportPrefix:               "github.com/kubernetes-incubator/descheduler/pkg/api",
-			AddInternalObjectsToScheme: deschedulerapi.AddToScheme,
-		},
-		announced.VersionToSchemeFunc{
-			v1alpha1.SchemeGroupVersion.Version: v1alpha1.AddToScheme,
-		},
-	).Announce(groupFactoryRegistry).RegisterAndEnable(registry, scheme); err != nil {
-		panic(err)
-	}
-}

pkg/api/register.go

@@ -19,11 +19,14 @@ package api
 import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
+
+	"sigs.k8s.io/descheduler/pkg/descheduler/scheme"
 )
 
 var (
 	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
 	AddToScheme   = SchemeBuilder.AddToScheme
+	Scheme        = runtime.NewScheme()
 )
 
 // GroupName is the group name use in this package
@@ -32,6 +35,12 @@ const GroupName = "descheduler"
 // SchemeGroupVersion is group version used to register these objects
 var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
 
+func init() {
+	if err := addKnownTypes(scheme.Scheme); err != nil {
+		panic(err)
+	}
+}
+
 // Kind takes an unqualified kind and returns a Group qualified GroupKind
 func Kind(kind string) schema.GroupKind {
 	return SchemeGroupVersion.WithKind(kind).GroupKind()

pkg/api/types.go

@@ -17,10 +17,12 @@ limitations under the License.
 package api
 
 import (
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/kubernetes/pkg/api/v1"
 )
 
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type DeschedulerPolicy struct {
 	metav1.TypeMeta
 
@@ -44,7 +46,11 @@ type DeschedulerStrategy struct {
 
 // Only one of its members may be specified
 type StrategyParameters struct {
-	NodeResourceUtilizationThresholds NodeResourceUtilizationThresholds
+	NodeResourceUtilizationThresholds *NodeResourceUtilizationThresholds
+	NodeAffinityType                  []string
+	PodsHavingTooManyRestarts         *PodsHavingTooManyRestarts
+	MaxPodLifeTimeSeconds             *uint
+	RemoveDuplicates                  *RemoveDuplicates
 }
 
 type Percentage float64
@@ -55,3 +61,12 @@ type NodeResourceUtilizationThresholds struct {
 	TargetThresholds ResourceThresholds
 	NumberOfNodes    int
 }
+
+type PodsHavingTooManyRestarts struct {
+	PodRestartThreshold     int32
+	IncludingInitContainers bool
+}
+
+type RemoveDuplicates struct {
+	ExcludeOwnerKinds []string
+}

pkg/api/v1alpha1/doc.go

@@ -15,10 +15,10 @@ limitations under the License.
 */
 
 // +k8s:deepcopy-gen=package,register
-// +k8s:conversion-gen=github.com/kubernetes-incubator/descheduler/pkg/api
+// +k8s:conversion-gen=sigs.k8s.io/descheduler/pkg/api
 // +k8s:defaulter-gen=TypeMeta
 
 // Package v1alpha1 is the v1alpha1 version of the descheduler API
 // +groupName=descheduler
 
-package v1alpha1 // import "github.com/kubernetes-incubator/descheduler/pkg/api/v1alpha1"
+package v1alpha1 // import "sigs.k8s.io/descheduler/pkg/api/v1alpha1"

pkg/api/v1alpha1/types.go

@@ -17,10 +17,12 @@ limitations under the License.
 package v1alpha1
 
 import (
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/kubernetes/pkg/api/v1"
 )
 
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type DeschedulerPolicy struct {
 	metav1.TypeMeta `json:",inline"`
 
@@ -44,7 +46,11 @@ type DeschedulerStrategy struct {
 
 // Only one of its members may be specified
 type StrategyParameters struct {
-	NodeResourceUtilizationThresholds NodeResourceUtilizationThresholds `json:"nodeResourceUtilizationThresholds,omitempty"`
+	NodeResourceUtilizationThresholds *NodeResourceUtilizationThresholds `json:"nodeResourceUtilizationThresholds,omitempty"`
+	NodeAffinityType                  []string                           `json:"nodeAffinityType,omitempty"`
+	PodsHavingTooManyRestarts         *PodsHavingTooManyRestarts         `json:"podsHavingTooManyRestarts,omitempty"`
+	MaxPodLifeTimeSeconds             *uint                              `json:"maxPodLifeTimeSeconds,omitempty"`
+	RemoveDuplicates                  *RemoveDuplicates                  `json:"removeDuplicates,omitempty"`
 }
 
 type Percentage float64
@@ -55,3 +61,12 @@ type NodeResourceUtilizationThresholds struct {
 	TargetThresholds ResourceThresholds `json:"targetThresholds,omitempty"`
 	NumberOfNodes    int                `json:"numberOfNodes,omitempty"`
 }
+
+type PodsHavingTooManyRestarts struct {
+	PodRestartThreshold     int32 `json:"podRestartThreshold,omitempty"`
+	IncludingInitContainers bool  `json:"includingInitContainers,omitempty"`
+}
+
+type RemoveDuplicates struct {
+	ExcludeOwnerKinds []string `json:"excludeOwnerKinds,omitempty"`
+}

pkg/api/v1alpha1/zz_generated.conversion.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,34 +16,86 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by conversion-gen. Do not edit it manually!
+// Code generated by conversion-gen. DO NOT EDIT.
 
 package v1alpha1
 
 import (
-	api "github.com/kubernetes-incubator/descheduler/pkg/api"
+	unsafe "unsafe"
+
 	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	unsafe "unsafe"
+	api "sigs.k8s.io/descheduler/pkg/api"
 )
 
 func init() {
-	SchemeBuilder.Register(RegisterConversions)
+	localSchemeBuilder.Register(RegisterConversions)
 }
 
 // RegisterConversions adds conversion functions to the given scheme.
 // Public to allow building arbitrary schemes.
-func RegisterConversions(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedConversionFuncs(
-		Convert_v1alpha1_DeschedulerPolicy_To_api_DeschedulerPolicy,
-		Convert_api_DeschedulerPolicy_To_v1alpha1_DeschedulerPolicy,
-		Convert_v1alpha1_DeschedulerStrategy_To_api_DeschedulerStrategy,
-		Convert_api_DeschedulerStrategy_To_v1alpha1_DeschedulerStrategy,
-		Convert_v1alpha1_NodeResourceUtilizationThresholds_To_api_NodeResourceUtilizationThresholds,
-		Convert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtilizationThresholds,
-		Convert_v1alpha1_StrategyParameters_To_api_StrategyParameters,
-		Convert_api_StrategyParameters_To_v1alpha1_StrategyParameters,
-	)
+func RegisterConversions(s *runtime.Scheme) error {
+	if err := s.AddGeneratedConversionFunc((*DeschedulerPolicy)(nil), (*api.DeschedulerPolicy)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_DeschedulerPolicy_To_api_DeschedulerPolicy(a.(*DeschedulerPolicy), b.(*api.DeschedulerPolicy), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.DeschedulerPolicy)(nil), (*DeschedulerPolicy)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_DeschedulerPolicy_To_v1alpha1_DeschedulerPolicy(a.(*api.DeschedulerPolicy), b.(*DeschedulerPolicy), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*DeschedulerStrategy)(nil), (*api.DeschedulerStrategy)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_DeschedulerStrategy_To_api_DeschedulerStrategy(a.(*DeschedulerStrategy), b.(*api.DeschedulerStrategy), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.DeschedulerStrategy)(nil), (*DeschedulerStrategy)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_DeschedulerStrategy_To_v1alpha1_DeschedulerStrategy(a.(*api.DeschedulerStrategy), b.(*DeschedulerStrategy), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*NodeResourceUtilizationThresholds)(nil), (*api.NodeResourceUtilizationThresholds)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_NodeResourceUtilizationThresholds_To_api_NodeResourceUtilizationThresholds(a.(*NodeResourceUtilizationThresholds), b.(*api.NodeResourceUtilizationThresholds), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.NodeResourceUtilizationThresholds)(nil), (*NodeResourceUtilizationThresholds)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtilizationThresholds(a.(*api.NodeResourceUtilizationThresholds), b.(*NodeResourceUtilizationThresholds), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*PodsHavingTooManyRestarts)(nil), (*api.PodsHavingTooManyRestarts)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_PodsHavingTooManyRestarts_To_api_PodsHavingTooManyRestarts(a.(*PodsHavingTooManyRestarts), b.(*api.PodsHavingTooManyRestarts), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.PodsHavingTooManyRestarts)(nil), (*PodsHavingTooManyRestarts)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_PodsHavingTooManyRestarts_To_v1alpha1_PodsHavingTooManyRestarts(a.(*api.PodsHavingTooManyRestarts), b.(*PodsHavingTooManyRestarts), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*RemoveDuplicates)(nil), (*api.RemoveDuplicates)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_RemoveDuplicates_To_api_RemoveDuplicates(a.(*RemoveDuplicates), b.(*api.RemoveDuplicates), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.RemoveDuplicates)(nil), (*RemoveDuplicates)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_RemoveDuplicates_To_v1alpha1_RemoveDuplicates(a.(*api.RemoveDuplicates), b.(*RemoveDuplicates), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*StrategyParameters)(nil), (*api.StrategyParameters)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_StrategyParameters_To_api_StrategyParameters(a.(*StrategyParameters), b.(*api.StrategyParameters), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*api.StrategyParameters)(nil), (*StrategyParameters)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_api_StrategyParameters_To_v1alpha1_StrategyParameters(a.(*api.StrategyParameters), b.(*StrategyParameters), scope)
+	}); err != nil {
+		return err
+	}
+	return nil
 }
 
 func autoConvert_v1alpha1_DeschedulerPolicy_To_api_DeschedulerPolicy(in *DeschedulerPolicy, out *api.DeschedulerPolicy, s conversion.Scope) error {
@@ -118,10 +170,54 @@ func Convert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtili
 	return autoConvert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtilizationThresholds(in, out, s)
 }
 
+func autoConvert_v1alpha1_PodsHavingTooManyRestarts_To_api_PodsHavingTooManyRestarts(in *PodsHavingTooManyRestarts, out *api.PodsHavingTooManyRestarts, s conversion.Scope) error {
+	out.PodRestartThreshold = in.PodRestartThreshold
+	out.IncludingInitContainers = in.IncludingInitContainers
+	return nil
+}
+
+// Convert_v1alpha1_PodsHavingTooManyRestarts_To_api_PodsHavingTooManyRestarts is an autogenerated conversion function.
+func Convert_v1alpha1_PodsHavingTooManyRestarts_To_api_PodsHavingTooManyRestarts(in *PodsHavingTooManyRestarts, out *api.PodsHavingTooManyRestarts, s conversion.Scope) error {
+	return autoConvert_v1alpha1_PodsHavingTooManyRestarts_To_api_PodsHavingTooManyRestarts(in, out, s)
+}
+
+func autoConvert_api_PodsHavingTooManyRestarts_To_v1alpha1_PodsHavingTooManyRestarts(in *api.PodsHavingTooManyRestarts, out *PodsHavingTooManyRestarts, s conversion.Scope) error {
+	out.PodRestartThreshold = in.PodRestartThreshold
+	out.IncludingInitContainers = in.IncludingInitContainers
+	return nil
+}
+
+// Convert_api_PodsHavingTooManyRestarts_To_v1alpha1_PodsHavingTooManyRestarts is an autogenerated conversion function.
+func Convert_api_PodsHavingTooManyRestarts_To_v1alpha1_PodsHavingTooManyRestarts(in *api.PodsHavingTooManyRestarts, out *PodsHavingTooManyRestarts, s conversion.Scope) error {
+	return autoConvert_api_PodsHavingTooManyRestarts_To_v1alpha1_PodsHavingTooManyRestarts(in, out, s)
+}
+
+func autoConvert_v1alpha1_RemoveDuplicates_To_api_RemoveDuplicates(in *RemoveDuplicates, out *api.RemoveDuplicates, s conversion.Scope) error {
+	out.ExcludeOwnerKinds = *(*[]string)(unsafe.Pointer(&in.ExcludeOwnerKinds))
+	return nil
+}
+
+// Convert_v1alpha1_RemoveDuplicates_To_api_RemoveDuplicates is an autogenerated conversion function.
+func Convert_v1alpha1_RemoveDuplicates_To_api_RemoveDuplicates(in *RemoveDuplicates, out *api.RemoveDuplicates, s conversion.Scope) error {
+	return autoConvert_v1alpha1_RemoveDuplicates_To_api_RemoveDuplicates(in, out, s)
+}
+
+func autoConvert_api_RemoveDuplicates_To_v1alpha1_RemoveDuplicates(in *api.RemoveDuplicates, out *RemoveDuplicates, s conversion.Scope) error {
+	out.ExcludeOwnerKinds = *(*[]string)(unsafe.Pointer(&in.ExcludeOwnerKinds))
+	return nil
+}
+
+// Convert_api_RemoveDuplicates_To_v1alpha1_RemoveDuplicates is an autogenerated conversion function.
+func Convert_api_RemoveDuplicates_To_v1alpha1_RemoveDuplicates(in *api.RemoveDuplicates, out *RemoveDuplicates, s conversion.Scope) error {
+	return autoConvert_api_RemoveDuplicates_To_v1alpha1_RemoveDuplicates(in, out, s)
+}
+
 func autoConvert_v1alpha1_StrategyParameters_To_api_StrategyParameters(in *StrategyParameters, out *api.StrategyParameters, s conversion.Scope) error {
-	if err := Convert_v1alpha1_NodeResourceUtilizationThresholds_To_api_NodeResourceUtilizationThresholds(&in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds, s); err != nil {
-		return err
-	}
+	out.NodeResourceUtilizationThresholds = (*api.NodeResourceUtilizationThresholds)(unsafe.Pointer(in.NodeResourceUtilizationThresholds))
+	out.NodeAffinityType = *(*[]string)(unsafe.Pointer(&in.NodeAffinityType))
+	out.PodsHavingTooManyRestarts = (*api.PodsHavingTooManyRestarts)(unsafe.Pointer(in.PodsHavingTooManyRestarts))
+	out.MaxPodLifeTimeSeconds = (*uint)(unsafe.Pointer(in.MaxPodLifeTimeSeconds))
+	out.RemoveDuplicates = (*api.RemoveDuplicates)(unsafe.Pointer(in.RemoveDuplicates))
 	return nil
 }
 
@@ -131,9 +227,11 @@ func Convert_v1alpha1_StrategyParameters_To_api_StrategyParameters(in *StrategyP
 }
 
 func autoConvert_api_StrategyParameters_To_v1alpha1_StrategyParameters(in *api.StrategyParameters, out *StrategyParameters, s conversion.Scope) error {
-	if err := Convert_api_NodeResourceUtilizationThresholds_To_v1alpha1_NodeResourceUtilizationThresholds(&in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds, s); err != nil {
-		return err
-	}
+	out.NodeResourceUtilizationThresholds = (*NodeResourceUtilizationThresholds)(unsafe.Pointer(in.NodeResourceUtilizationThresholds))
+	out.NodeAffinityType = *(*[]string)(unsafe.Pointer(&in.NodeAffinityType))
+	out.PodsHavingTooManyRestarts = (*PodsHavingTooManyRestarts)(unsafe.Pointer(in.PodsHavingTooManyRestarts))
+	out.MaxPodLifeTimeSeconds = (*uint)(unsafe.Pointer(in.MaxPodLifeTimeSeconds))
+	out.RemoveDuplicates = (*RemoveDuplicates)(unsafe.Pointer(in.RemoveDuplicates))
 	return nil
 }
 

pkg/api/v1alpha1/zz_generated.deepcopy.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,98 +16,211 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by deepcopy-gen. Do not edit it manually!
+// Code generated by deepcopy-gen. DO NOT EDIT.
 
 package v1alpha1
 
 import (
-	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	reflect "reflect"
 )
 
-func init() {
-	SchemeBuilder.Register(RegisterDeepCopies)
-}
-
-// RegisterDeepCopies adds deep-copy functions to the given scheme. Public
-// to allow building arbitrary schemes.
-func RegisterDeepCopies(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedDeepCopyFuncs(
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_v1alpha1_DeschedulerPolicy, InType: reflect.TypeOf(&DeschedulerPolicy{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_v1alpha1_DeschedulerStrategy, InType: reflect.TypeOf(&DeschedulerStrategy{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_v1alpha1_NodeResourceUtilizationThresholds, InType: reflect.TypeOf(&NodeResourceUtilizationThresholds{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_v1alpha1_StrategyParameters, InType: reflect.TypeOf(&StrategyParameters{})},
-	)
-}
-
-// DeepCopy_v1alpha1_DeschedulerPolicy is an autogenerated deepcopy function.
-func DeepCopy_v1alpha1_DeschedulerPolicy(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerPolicy)
-		out := out.(*DeschedulerPolicy)
-		*out = *in
-		if in.Strategies != nil {
-			in, out := &in.Strategies, &out.Strategies
-			*out = make(StrategyList)
-			for key, val := range *in {
-				newVal := new(DeschedulerStrategy)
-				if err := DeepCopy_v1alpha1_DeschedulerStrategy(&val, newVal, c); err != nil {
-					return err
-				}
-				(*out)[key] = *newVal
-			}
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DeschedulerPolicy) DeepCopyInto(out *DeschedulerPolicy) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Strategies != nil {
+		in, out := &in.Strategies, &out.Strategies
+		*out = make(StrategyList, len(*in))
+		for key, val := range *in {
+			(*out)[key] = *val.DeepCopy()
 		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerPolicy.
+func (in *DeschedulerPolicy) DeepCopy() *DeschedulerPolicy {
+	if in == nil {
 		return nil
 	}
+	out := new(DeschedulerPolicy)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *DeschedulerPolicy) 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 *DeschedulerStrategy) DeepCopyInto(out *DeschedulerStrategy) {
+	*out = *in
+	in.Params.DeepCopyInto(&out.Params)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerStrategy.
+func (in *DeschedulerStrategy) DeepCopy() *DeschedulerStrategy {
+	if in == nil {
+		return nil
+	}
+	out := new(DeschedulerStrategy)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NodeResourceUtilizationThresholds) DeepCopyInto(out *NodeResourceUtilizationThresholds) {
+	*out = *in
+	if in.Thresholds != nil {
+		in, out := &in.Thresholds, &out.Thresholds
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.TargetThresholds != nil {
+		in, out := &in.TargetThresholds, &out.TargetThresholds
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NodeResourceUtilizationThresholds.
+func (in *NodeResourceUtilizationThresholds) DeepCopy() *NodeResourceUtilizationThresholds {
+	if in == nil {
+		return nil
+	}
+	out := new(NodeResourceUtilizationThresholds)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *PodsHavingTooManyRestarts) DeepCopyInto(out *PodsHavingTooManyRestarts) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PodsHavingTooManyRestarts.
+func (in *PodsHavingTooManyRestarts) DeepCopy() *PodsHavingTooManyRestarts {
+	if in == nil {
+		return nil
+	}
+	out := new(PodsHavingTooManyRestarts)
+	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
+	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 RemoveDuplicates.
+func (in *RemoveDuplicates) DeepCopy() *RemoveDuplicates {
+	if in == nil {
+		return nil
+	}
+	out := new(RemoveDuplicates)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in ResourceThresholds) DeepCopyInto(out *ResourceThresholds) {
+	{
+		in := &in
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+		return
+	}
 }
 
-// DeepCopy_v1alpha1_DeschedulerStrategy is an autogenerated deepcopy function.
-func DeepCopy_v1alpha1_DeschedulerStrategy(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerStrategy)
-		out := out.(*DeschedulerStrategy)
-		*out = *in
-		if err := DeepCopy_v1alpha1_StrategyParameters(&in.Params, &out.Params, c); err != nil {
-			return err
-		}
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ResourceThresholds.
+func (in ResourceThresholds) DeepCopy() ResourceThresholds {
+	if in == nil {
 		return nil
 	}
+	out := new(ResourceThresholds)
+	in.DeepCopyInto(out)
+	return *out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in StrategyList) DeepCopyInto(out *StrategyList) {
+	{
+		in := &in
+		*out = make(StrategyList, len(*in))
+		for key, val := range *in {
+			(*out)[key] = *val.DeepCopy()
+		}
+		return
+	}
 }
 
-// DeepCopy_v1alpha1_NodeResourceUtilizationThresholds is an autogenerated deepcopy function.
-func DeepCopy_v1alpha1_NodeResourceUtilizationThresholds(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*NodeResourceUtilizationThresholds)
-		out := out.(*NodeResourceUtilizationThresholds)
-		*out = *in
-		if in.Thresholds != nil {
-			in, out := &in.Thresholds, &out.Thresholds
-			*out = make(ResourceThresholds)
-			for key, val := range *in {
-				(*out)[key] = val
-			}
-		}
-		if in.TargetThresholds != nil {
-			in, out := &in.TargetThresholds, &out.TargetThresholds
-			*out = make(ResourceThresholds)
-			for key, val := range *in {
-				(*out)[key] = val
-			}
-		}
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new StrategyList.
+func (in StrategyList) DeepCopy() StrategyList {
+	if in == nil {
 		return nil
 	}
+	out := new(StrategyList)
+	in.DeepCopyInto(out)
+	return *out
 }
 
-// DeepCopy_v1alpha1_StrategyParameters is an autogenerated deepcopy function.
-func DeepCopy_v1alpha1_StrategyParameters(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*StrategyParameters)
-		out := out.(*StrategyParameters)
-		*out = *in
-		if err := DeepCopy_v1alpha1_NodeResourceUtilizationThresholds(&in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds, c); err != nil {
-			return err
-		}
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *StrategyParameters) DeepCopyInto(out *StrategyParameters) {
+	*out = *in
+	if in.NodeResourceUtilizationThresholds != nil {
+		in, out := &in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds
+		*out = new(NodeResourceUtilizationThresholds)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.NodeAffinityType != nil {
+		in, out := &in.NodeAffinityType, &out.NodeAffinityType
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	if in.PodsHavingTooManyRestarts != nil {
+		in, out := &in.PodsHavingTooManyRestarts, &out.PodsHavingTooManyRestarts
+		*out = new(PodsHavingTooManyRestarts)
+		**out = **in
+	}
+	if in.MaxPodLifeTimeSeconds != nil {
+		in, out := &in.MaxPodLifeTimeSeconds, &out.MaxPodLifeTimeSeconds
+		*out = new(uint)
+		**out = **in
+	}
+	if in.RemoveDuplicates != nil {
+		in, out := &in.RemoveDuplicates, &out.RemoveDuplicates
+		*out = new(RemoveDuplicates)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new StrategyParameters.
+func (in *StrategyParameters) DeepCopy() *StrategyParameters {
+	if in == nil {
 		return nil
 	}
+	out := new(StrategyParameters)
+	in.DeepCopyInto(out)
+	return out
 }

pkg/api/v1alpha1/zz_generated.defaults.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,7 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by defaulter-gen. Do not edit it manually!
+// Code generated by defaulter-gen. DO NOT EDIT.
 
 package v1alpha1
 

pkg/api/zz_generated.deepcopy.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,98 +16,211 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by deepcopy-gen. Do not edit it manually!
+// Code generated by deepcopy-gen. DO NOT EDIT.
 
 package api
 
 import (
-	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	reflect "reflect"
 )
 
-func init() {
-	SchemeBuilder.Register(RegisterDeepCopies)
-}
-
-// RegisterDeepCopies adds deep-copy functions to the given scheme. Public
-// to allow building arbitrary schemes.
-func RegisterDeepCopies(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedDeepCopyFuncs(
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_api_DeschedulerPolicy, InType: reflect.TypeOf(&DeschedulerPolicy{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_api_DeschedulerStrategy, InType: reflect.TypeOf(&DeschedulerStrategy{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_api_NodeResourceUtilizationThresholds, InType: reflect.TypeOf(&NodeResourceUtilizationThresholds{})},
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_api_StrategyParameters, InType: reflect.TypeOf(&StrategyParameters{})},
-	)
-}
-
-// DeepCopy_api_DeschedulerPolicy is an autogenerated deepcopy function.
-func DeepCopy_api_DeschedulerPolicy(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerPolicy)
-		out := out.(*DeschedulerPolicy)
-		*out = *in
-		if in.Strategies != nil {
-			in, out := &in.Strategies, &out.Strategies
-			*out = make(StrategyList)
-			for key, val := range *in {
-				newVal := new(DeschedulerStrategy)
-				if err := DeepCopy_api_DeschedulerStrategy(&val, newVal, c); err != nil {
-					return err
-				}
-				(*out)[key] = *newVal
-			}
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DeschedulerPolicy) DeepCopyInto(out *DeschedulerPolicy) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Strategies != nil {
+		in, out := &in.Strategies, &out.Strategies
+		*out = make(StrategyList, len(*in))
+		for key, val := range *in {
+			(*out)[key] = *val.DeepCopy()
 		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerPolicy.
+func (in *DeschedulerPolicy) DeepCopy() *DeschedulerPolicy {
+	if in == nil {
 		return nil
 	}
+	out := new(DeschedulerPolicy)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *DeschedulerPolicy) 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 *DeschedulerStrategy) DeepCopyInto(out *DeschedulerStrategy) {
+	*out = *in
+	in.Params.DeepCopyInto(&out.Params)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerStrategy.
+func (in *DeschedulerStrategy) DeepCopy() *DeschedulerStrategy {
+	if in == nil {
+		return nil
+	}
+	out := new(DeschedulerStrategy)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NodeResourceUtilizationThresholds) DeepCopyInto(out *NodeResourceUtilizationThresholds) {
+	*out = *in
+	if in.Thresholds != nil {
+		in, out := &in.Thresholds, &out.Thresholds
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.TargetThresholds != nil {
+		in, out := &in.TargetThresholds, &out.TargetThresholds
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NodeResourceUtilizationThresholds.
+func (in *NodeResourceUtilizationThresholds) DeepCopy() *NodeResourceUtilizationThresholds {
+	if in == nil {
+		return nil
+	}
+	out := new(NodeResourceUtilizationThresholds)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *PodsHavingTooManyRestarts) DeepCopyInto(out *PodsHavingTooManyRestarts) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PodsHavingTooManyRestarts.
+func (in *PodsHavingTooManyRestarts) DeepCopy() *PodsHavingTooManyRestarts {
+	if in == nil {
+		return nil
+	}
+	out := new(PodsHavingTooManyRestarts)
+	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
+	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 RemoveDuplicates.
+func (in *RemoveDuplicates) DeepCopy() *RemoveDuplicates {
+	if in == nil {
+		return nil
+	}
+	out := new(RemoveDuplicates)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in ResourceThresholds) DeepCopyInto(out *ResourceThresholds) {
+	{
+		in := &in
+		*out = make(ResourceThresholds, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+		return
+	}
 }
 
-// DeepCopy_api_DeschedulerStrategy is an autogenerated deepcopy function.
-func DeepCopy_api_DeschedulerStrategy(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerStrategy)
-		out := out.(*DeschedulerStrategy)
-		*out = *in
-		if err := DeepCopy_api_StrategyParameters(&in.Params, &out.Params, c); err != nil {
-			return err
-		}
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ResourceThresholds.
+func (in ResourceThresholds) DeepCopy() ResourceThresholds {
+	if in == nil {
 		return nil
 	}
+	out := new(ResourceThresholds)
+	in.DeepCopyInto(out)
+	return *out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in StrategyList) DeepCopyInto(out *StrategyList) {
+	{
+		in := &in
+		*out = make(StrategyList, len(*in))
+		for key, val := range *in {
+			(*out)[key] = *val.DeepCopy()
+		}
+		return
+	}
 }
 
-// DeepCopy_api_NodeResourceUtilizationThresholds is an autogenerated deepcopy function.
-func DeepCopy_api_NodeResourceUtilizationThresholds(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*NodeResourceUtilizationThresholds)
-		out := out.(*NodeResourceUtilizationThresholds)
-		*out = *in
-		if in.Thresholds != nil {
-			in, out := &in.Thresholds, &out.Thresholds
-			*out = make(ResourceThresholds)
-			for key, val := range *in {
-				(*out)[key] = val
-			}
-		}
-		if in.TargetThresholds != nil {
-			in, out := &in.TargetThresholds, &out.TargetThresholds
-			*out = make(ResourceThresholds)
-			for key, val := range *in {
-				(*out)[key] = val
-			}
-		}
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new StrategyList.
+func (in StrategyList) DeepCopy() StrategyList {
+	if in == nil {
 		return nil
 	}
+	out := new(StrategyList)
+	in.DeepCopyInto(out)
+	return *out
 }
 
-// DeepCopy_api_StrategyParameters is an autogenerated deepcopy function.
-func DeepCopy_api_StrategyParameters(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*StrategyParameters)
-		out := out.(*StrategyParameters)
-		*out = *in
-		if err := DeepCopy_api_NodeResourceUtilizationThresholds(&in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds, c); err != nil {
-			return err
-		}
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *StrategyParameters) DeepCopyInto(out *StrategyParameters) {
+	*out = *in
+	if in.NodeResourceUtilizationThresholds != nil {
+		in, out := &in.NodeResourceUtilizationThresholds, &out.NodeResourceUtilizationThresholds
+		*out = new(NodeResourceUtilizationThresholds)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.NodeAffinityType != nil {
+		in, out := &in.NodeAffinityType, &out.NodeAffinityType
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	if in.PodsHavingTooManyRestarts != nil {
+		in, out := &in.PodsHavingTooManyRestarts, &out.PodsHavingTooManyRestarts
+		*out = new(PodsHavingTooManyRestarts)
+		**out = **in
+	}
+	if in.MaxPodLifeTimeSeconds != nil {
+		in, out := &in.MaxPodLifeTimeSeconds, &out.MaxPodLifeTimeSeconds
+		*out = new(uint)
+		**out = **in
+	}
+	if in.RemoveDuplicates != nil {
+		in, out := &in.RemoveDuplicates, &out.RemoveDuplicates
+		*out = new(RemoveDuplicates)
+		(*in).DeepCopyInto(*out)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new StrategyParameters.
+func (in *StrategyParameters) DeepCopy() *StrategyParameters {
+	if in == nil {
 		return nil
 	}
+	out := new(StrategyParameters)
+	in.DeepCopyInto(out)
+	return out
 }

pkg/apis/componentconfig/doc.go

@@ -16,4 +16,4 @@ limitations under the License.
 
 // +k8s:deepcopy-gen=package,register
 
-package componentconfig // import "github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig"
+package componentconfig // import "sigs.k8s.io/descheduler/pkg/apis/componentconfig"

pkg/apis/componentconfig/install/install.go

@@ -1,49 +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 install installs the descheduler's componentconfig API group.
-package install
-
-import (
-	"k8s.io/apimachinery/pkg/apimachinery/announced"
-	"k8s.io/apimachinery/pkg/apimachinery/registered"
-	"k8s.io/apimachinery/pkg/runtime"
-
-	"github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig"
-	"github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig/v1alpha1"
-	deschedulerscheme "github.com/kubernetes-incubator/descheduler/pkg/descheduler/scheme"
-)
-
-func init() {
-	Install(deschedulerscheme.GroupFactoryRegistry, deschedulerscheme.Registry, deschedulerscheme.Scheme)
-}
-
-// Install registers the API group and adds types to a scheme
-func Install(groupFactoryRegistry announced.APIGroupFactoryRegistry, registry *registered.APIRegistrationManager, scheme *runtime.Scheme) {
-	if err := announced.NewGroupMetaFactory(
-		&announced.GroupMetaFactoryArgs{
-			GroupName:                  componentconfig.GroupName,
-			VersionPreferenceOrder:     []string{v1alpha1.SchemeGroupVersion.Version},
-			ImportPrefix:               "github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig",
-			AddInternalObjectsToScheme: componentconfig.AddToScheme,
-		},
-		announced.VersionToSchemeFunc{
-			v1alpha1.SchemeGroupVersion.Version: v1alpha1.AddToScheme,
-		},
-	).Announce(groupFactoryRegistry).RegisterAndEnable(registry, scheme); err != nil {
-		panic(err)
-	}
-}

pkg/apis/componentconfig/register.go

@@ -19,6 +19,8 @@ package componentconfig
 import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
+
+	"sigs.k8s.io/descheduler/pkg/descheduler/scheme"
 )
 
 var (
@@ -32,6 +34,12 @@ const GroupName = "deschedulercomponentconfig"
 // SchemeGroupVersion is group version used to register these objects
 var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
 
+func init() {
+	if err := addKnownTypes(scheme.Scheme); err != nil {
+		panic(err)
+	}
+}
+
 // Kind takes an unqualified kind and returns a Group qualified GroupKind
 func Kind(kind string) schema.GroupKind {
 	return SchemeGroupVersion.WithKind(kind).GroupKind()

pkg/apis/componentconfig/types.generated.go

@@ -1,525 +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.
-*/
-
-// ************************************************************
-// DO NOT EDIT.
-// THIS FILE IS AUTO-GENERATED BY codecgen.
-// ************************************************************
-
-package componentconfig
-
-import (
-	"errors"
-	"fmt"
-	codec1978 "github.com/ugorji/go/codec"
-	pkg1_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"reflect"
-	"runtime"
-	time "time"
-)
-
-const (
-	// ----- content types ----
-	codecSelferC_UTF81234 = 1
-	codecSelferC_RAW1234  = 0
-	// ----- value types used ----
-	codecSelferValueTypeArray1234 = 10
-	codecSelferValueTypeMap1234   = 9
-	// ----- containerStateValues ----
-	codecSelfer_containerMapKey1234    = 2
-	codecSelfer_containerMapValue1234  = 3
-	codecSelfer_containerMapEnd1234    = 4
-	codecSelfer_containerArrayElem1234 = 6
-	codecSelfer_containerArrayEnd1234  = 7
-)
-
-var (
-	codecSelferBitsize1234                         = uint8(reflect.TypeOf(uint(0)).Bits())
-	codecSelferOnlyMapOrArrayEncodeToStructErr1234 = errors.New(`only encoded map or array can be decoded into a struct`)
-)
-
-type codecSelfer1234 struct{}
-
-func init() {
-	if codec1978.GenVersion != 5 {
-		_, file, _, _ := runtime.Caller(0)
-		err := fmt.Errorf("codecgen version mismatch: current: %v, need %v. Re-generate file: %v",
-			5, codec1978.GenVersion, file)
-		panic(err)
-	}
-	if false { // reference the types, but skip this branch at build/run time
-		var v0 pkg1_v1.TypeMeta
-		var v1 time.Duration
-		_, _ = v0, v1
-	}
-}
-
-func (x *DeschedulerConfiguration) CodecEncodeSelf(e *codec1978.Encoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperEncoder(e)
-	_, _, _ = h, z, r
-	if x == nil {
-		r.EncodeNil()
-	} else {
-		yym1 := z.EncBinary()
-		_ = yym1
-		if false {
-		} else if z.HasExtensions() && z.EncExt(x) {
-		} else {
-			yysep2 := !z.EncBinary()
-			yy2arr2 := z.EncBasicHandle().StructToArray
-			var yyq2 [6]bool
-			_, _, _ = yysep2, yyq2, yy2arr2
-			const yyr2 bool = false
-			yyq2[0] = x.Kind != ""
-			yyq2[1] = x.APIVersion != ""
-			var yynn2 int
-			if yyr2 || yy2arr2 {
-				r.EncodeArrayStart(6)
-			} else {
-				yynn2 = 4
-				for _, b := range yyq2 {
-					if b {
-						yynn2++
-					}
-				}
-				r.EncodeMapStart(yynn2)
-				yynn2 = 0
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[0] {
-					yym4 := z.EncBinary()
-					_ = yym4
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
-					}
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, "")
-				}
-			} else {
-				if yyq2[0] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("kind"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym5 := z.EncBinary()
-					_ = yym5
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[1] {
-					yym7 := z.EncBinary()
-					_ = yym7
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
-					}
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, "")
-				}
-			} else {
-				if yyq2[1] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym8 := z.EncBinary()
-					_ = yym8
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				yym10 := z.EncBinary()
-				_ = yym10
-				if false {
-				} else if z.HasExtensions() && z.EncExt(x.DeschedulingInterval) {
-				} else {
-					r.EncodeInt(int64(x.DeschedulingInterval))
-				}
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapKey1234)
-				r.EncodeString(codecSelferC_UTF81234, string("DeschedulingInterval"))
-				z.EncSendContainerState(codecSelfer_containerMapValue1234)
-				yym11 := z.EncBinary()
-				_ = yym11
-				if false {
-				} else if z.HasExtensions() && z.EncExt(x.DeschedulingInterval) {
-				} else {
-					r.EncodeInt(int64(x.DeschedulingInterval))
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				yym13 := z.EncBinary()
-				_ = yym13
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.KubeconfigFile))
-				}
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapKey1234)
-				r.EncodeString(codecSelferC_UTF81234, string("KubeconfigFile"))
-				z.EncSendContainerState(codecSelfer_containerMapValue1234)
-				yym14 := z.EncBinary()
-				_ = yym14
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.KubeconfigFile))
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				yym16 := z.EncBinary()
-				_ = yym16
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.PolicyConfigFile))
-				}
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapKey1234)
-				r.EncodeString(codecSelferC_UTF81234, string("PolicyConfigFile"))
-				z.EncSendContainerState(codecSelfer_containerMapValue1234)
-				yym17 := z.EncBinary()
-				_ = yym17
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.PolicyConfigFile))
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				yym19 := z.EncBinary()
-				_ = yym19
-				if false {
-				} else {
-					r.EncodeBool(bool(x.DryRun))
-				}
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapKey1234)
-				r.EncodeString(codecSelferC_UTF81234, string("DryRun"))
-				z.EncSendContainerState(codecSelfer_containerMapValue1234)
-				yym20 := z.EncBinary()
-				_ = yym20
-				if false {
-				} else {
-					r.EncodeBool(bool(x.DryRun))
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
-			}
-		}
-	}
-}
-
-func (x *DeschedulerConfiguration) CodecDecodeSelf(d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	yym1 := z.DecBinary()
-	_ = yym1
-	if false {
-	} else if z.HasExtensions() && z.DecExt(x) {
-	} else {
-		yyct2 := r.ContainerType()
-		if yyct2 == codecSelferValueTypeMap1234 {
-			yyl2 := r.ReadMapStart()
-			if yyl2 == 0 {
-				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
-			} else {
-				x.codecDecodeSelfFromMap(yyl2, d)
-			}
-		} else if yyct2 == codecSelferValueTypeArray1234 {
-			yyl2 := r.ReadArrayStart()
-			if yyl2 == 0 {
-				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-			} else {
-				x.codecDecodeSelfFromArray(yyl2, d)
-			}
-		} else {
-			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
-		}
-	}
-}
-
-func (x *DeschedulerConfiguration) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	var yys3Slc = z.DecScratchBuffer() // default slice to decode into
-	_ = yys3Slc
-	var yyhl3 bool = l >= 0
-	for yyj3 := 0; ; yyj3++ {
-		if yyhl3 {
-			if yyj3 >= l {
-				break
-			}
-		} else {
-			if r.CheckBreak() {
-				break
-			}
-		}
-		z.DecSendContainerState(codecSelfer_containerMapKey1234)
-		yys3Slc = r.DecodeBytes(yys3Slc, true, true)
-		yys3 := string(yys3Slc)
-		z.DecSendContainerState(codecSelfer_containerMapValue1234)
-		switch yys3 {
-		case "kind":
-			if r.TryDecodeAsNil() {
-				x.Kind = ""
-			} else {
-				yyv4 := &x.Kind
-				yym5 := z.DecBinary()
-				_ = yym5
-				if false {
-				} else {
-					*((*string)(yyv4)) = r.DecodeString()
-				}
-			}
-		case "apiVersion":
-			if r.TryDecodeAsNil() {
-				x.APIVersion = ""
-			} else {
-				yyv6 := &x.APIVersion
-				yym7 := z.DecBinary()
-				_ = yym7
-				if false {
-				} else {
-					*((*string)(yyv6)) = r.DecodeString()
-				}
-			}
-		case "DeschedulingInterval":
-			if r.TryDecodeAsNil() {
-				x.DeschedulingInterval = 0
-			} else {
-				yyv8 := &x.DeschedulingInterval
-				yym9 := z.DecBinary()
-				_ = yym9
-				if false {
-				} else if z.HasExtensions() && z.DecExt(yyv8) {
-				} else {
-					*((*int64)(yyv8)) = int64(r.DecodeInt(64))
-				}
-			}
-		case "KubeconfigFile":
-			if r.TryDecodeAsNil() {
-				x.KubeconfigFile = ""
-			} else {
-				yyv10 := &x.KubeconfigFile
-				yym11 := z.DecBinary()
-				_ = yym11
-				if false {
-				} else {
-					*((*string)(yyv10)) = r.DecodeString()
-				}
-			}
-		case "PolicyConfigFile":
-			if r.TryDecodeAsNil() {
-				x.PolicyConfigFile = ""
-			} else {
-				yyv12 := &x.PolicyConfigFile
-				yym13 := z.DecBinary()
-				_ = yym13
-				if false {
-				} else {
-					*((*string)(yyv12)) = r.DecodeString()
-				}
-			}
-		case "DryRun":
-			if r.TryDecodeAsNil() {
-				x.DryRun = false
-			} else {
-				yyv14 := &x.DryRun
-				yym15 := z.DecBinary()
-				_ = yym15
-				if false {
-				} else {
-					*((*bool)(yyv14)) = r.DecodeBool()
-				}
-			}
-		default:
-			z.DecStructFieldNotFound(-1, yys3)
-		} // end switch yys3
-	} // end for yyj3
-	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
-}
-
-func (x *DeschedulerConfiguration) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	var yyj16 int
-	var yyb16 bool
-	var yyhl16 bool = l >= 0
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.Kind = ""
-	} else {
-		yyv17 := &x.Kind
-		yym18 := z.DecBinary()
-		_ = yym18
-		if false {
-		} else {
-			*((*string)(yyv17)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.APIVersion = ""
-	} else {
-		yyv19 := &x.APIVersion
-		yym20 := z.DecBinary()
-		_ = yym20
-		if false {
-		} else {
-			*((*string)(yyv19)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.DeschedulingInterval = 0
-	} else {
-		yyv21 := &x.DeschedulingInterval
-		yym22 := z.DecBinary()
-		_ = yym22
-		if false {
-		} else if z.HasExtensions() && z.DecExt(yyv21) {
-		} else {
-			*((*int64)(yyv21)) = int64(r.DecodeInt(64))
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.KubeconfigFile = ""
-	} else {
-		yyv23 := &x.KubeconfigFile
-		yym24 := z.DecBinary()
-		_ = yym24
-		if false {
-		} else {
-			*((*string)(yyv23)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.PolicyConfigFile = ""
-	} else {
-		yyv25 := &x.PolicyConfigFile
-		yym26 := z.DecBinary()
-		_ = yym26
-		if false {
-		} else {
-			*((*string)(yyv25)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.DryRun = false
-	} else {
-		yyv27 := &x.DryRun
-		yym28 := z.DecBinary()
-		_ = yym28
-		if false {
-		} else {
-			*((*bool)(yyv27)) = r.DecodeBool()
-		}
-	}
-	for {
-		yyj16++
-		if yyhl16 {
-			yyb16 = yyj16 > l
-		} else {
-			yyb16 = r.CheckBreak()
-		}
-		if yyb16 {
-			break
-		}
-		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-		z.DecStructFieldNotFound(yyj16-1, "")
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-}

pkg/apis/componentconfig/types.go

@@ -22,6 +22,8 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type DeschedulerConfiguration struct {
 	metav1.TypeMeta
 
@@ -37,4 +39,13 @@ type DeschedulerConfiguration struct {
 
 	// Dry run
 	DryRun bool
+
+	// Node selectors
+	NodeSelector string
+
+	// MaxNoOfPodsToEvictPerNode restricts maximum of pods to be evicted per node.
+	MaxNoOfPodsToEvictPerNode int
+
+	// EvictLocalStoragePods allows pods using local storage to be evicted.
+	EvictLocalStoragePods bool
 }

pkg/apis/componentconfig/v1alpha1/doc.go

@@ -15,10 +15,10 @@ limitations under the License.
 */
 
 // +k8s:deepcopy-gen=package,register
-// +k8s:conversion-gen=github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig
+// +k8s:conversion-gen=sigs.k8s.io/descheduler/pkg/apis/componentconfig
 // +k8s:defaulter-gen=TypeMeta
 
 // Package v1alpha1 is the v1alpha1 version of the descheduler's componentconfig API
 // +groupName=deschedulercomponentconfig
 
-package v1alpha1 // import "github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig/v1alpha1"
+package v1alpha1 // import "sigs.k8s.io/descheduler/pkg/apis/componentconfig/v1alpha1"

pkg/apis/componentconfig/v1alpha1/types.generated.go

@@ -1,546 +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.
-*/
-
-// ************************************************************
-// DO NOT EDIT.
-// THIS FILE IS AUTO-GENERATED BY codecgen.
-// ************************************************************
-
-package v1alpha1
-
-import (
-	"errors"
-	"fmt"
-	codec1978 "github.com/ugorji/go/codec"
-	pkg1_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"reflect"
-	"runtime"
-	time "time"
-)
-
-const (
-	// ----- content types ----
-	codecSelferC_UTF81234 = 1
-	codecSelferC_RAW1234  = 0
-	// ----- value types used ----
-	codecSelferValueTypeArray1234 = 10
-	codecSelferValueTypeMap1234   = 9
-	// ----- containerStateValues ----
-	codecSelfer_containerMapKey1234    = 2
-	codecSelfer_containerMapValue1234  = 3
-	codecSelfer_containerMapEnd1234    = 4
-	codecSelfer_containerArrayElem1234 = 6
-	codecSelfer_containerArrayEnd1234  = 7
-)
-
-var (
-	codecSelferBitsize1234                         = uint8(reflect.TypeOf(uint(0)).Bits())
-	codecSelferOnlyMapOrArrayEncodeToStructErr1234 = errors.New(`only encoded map or array can be decoded into a struct`)
-)
-
-type codecSelfer1234 struct{}
-
-func init() {
-	if codec1978.GenVersion != 5 {
-		_, file, _, _ := runtime.Caller(0)
-		err := fmt.Errorf("codecgen version mismatch: current: %v, need %v. Re-generate file: %v",
-			5, codec1978.GenVersion, file)
-		panic(err)
-	}
-	if false { // reference the types, but skip this branch at build/run time
-		var v0 pkg1_v1.TypeMeta
-		var v1 time.Duration
-		_, _ = v0, v1
-	}
-}
-
-func (x *DeschedulerConfiguration) CodecEncodeSelf(e *codec1978.Encoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperEncoder(e)
-	_, _, _ = h, z, r
-	if x == nil {
-		r.EncodeNil()
-	} else {
-		yym1 := z.EncBinary()
-		_ = yym1
-		if false {
-		} else if z.HasExtensions() && z.EncExt(x) {
-		} else {
-			yysep2 := !z.EncBinary()
-			yy2arr2 := z.EncBasicHandle().StructToArray
-			var yyq2 [6]bool
-			_, _, _ = yysep2, yyq2, yy2arr2
-			const yyr2 bool = false
-			yyq2[0] = x.Kind != ""
-			yyq2[1] = x.APIVersion != ""
-			yyq2[2] = x.DeschedulingInterval != 0
-			yyq2[4] = x.PolicyConfigFile != ""
-			yyq2[5] = x.DryRun != false
-			var yynn2 int
-			if yyr2 || yy2arr2 {
-				r.EncodeArrayStart(6)
-			} else {
-				yynn2 = 1
-				for _, b := range yyq2 {
-					if b {
-						yynn2++
-					}
-				}
-				r.EncodeMapStart(yynn2)
-				yynn2 = 0
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[0] {
-					yym4 := z.EncBinary()
-					_ = yym4
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
-					}
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, "")
-				}
-			} else {
-				if yyq2[0] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("kind"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym5 := z.EncBinary()
-					_ = yym5
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[1] {
-					yym7 := z.EncBinary()
-					_ = yym7
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
-					}
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, "")
-				}
-			} else {
-				if yyq2[1] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym8 := z.EncBinary()
-					_ = yym8
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[2] {
-					yym10 := z.EncBinary()
-					_ = yym10
-					if false {
-					} else if z.HasExtensions() && z.EncExt(x.DeschedulingInterval) {
-					} else {
-						r.EncodeInt(int64(x.DeschedulingInterval))
-					}
-				} else {
-					r.EncodeInt(0)
-				}
-			} else {
-				if yyq2[2] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("deschedulingInterval"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym11 := z.EncBinary()
-					_ = yym11
-					if false {
-					} else if z.HasExtensions() && z.EncExt(x.DeschedulingInterval) {
-					} else {
-						r.EncodeInt(int64(x.DeschedulingInterval))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				yym13 := z.EncBinary()
-				_ = yym13
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.KubeconfigFile))
-				}
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapKey1234)
-				r.EncodeString(codecSelferC_UTF81234, string("kubeconfigFile"))
-				z.EncSendContainerState(codecSelfer_containerMapValue1234)
-				yym14 := z.EncBinary()
-				_ = yym14
-				if false {
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, string(x.KubeconfigFile))
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[4] {
-					yym16 := z.EncBinary()
-					_ = yym16
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.PolicyConfigFile))
-					}
-				} else {
-					r.EncodeString(codecSelferC_UTF81234, "")
-				}
-			} else {
-				if yyq2[4] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("policyConfigFile"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym17 := z.EncBinary()
-					_ = yym17
-					if false {
-					} else {
-						r.EncodeString(codecSelferC_UTF81234, string(x.PolicyConfigFile))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
-				if yyq2[5] {
-					yym19 := z.EncBinary()
-					_ = yym19
-					if false {
-					} else {
-						r.EncodeBool(bool(x.DryRun))
-					}
-				} else {
-					r.EncodeBool(false)
-				}
-			} else {
-				if yyq2[5] {
-					z.EncSendContainerState(codecSelfer_containerMapKey1234)
-					r.EncodeString(codecSelferC_UTF81234, string("dryRun"))
-					z.EncSendContainerState(codecSelfer_containerMapValue1234)
-					yym20 := z.EncBinary()
-					_ = yym20
-					if false {
-					} else {
-						r.EncodeBool(bool(x.DryRun))
-					}
-				}
-			}
-			if yyr2 || yy2arr2 {
-				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
-			} else {
-				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
-			}
-		}
-	}
-}
-
-func (x *DeschedulerConfiguration) CodecDecodeSelf(d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	yym1 := z.DecBinary()
-	_ = yym1
-	if false {
-	} else if z.HasExtensions() && z.DecExt(x) {
-	} else {
-		yyct2 := r.ContainerType()
-		if yyct2 == codecSelferValueTypeMap1234 {
-			yyl2 := r.ReadMapStart()
-			if yyl2 == 0 {
-				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
-			} else {
-				x.codecDecodeSelfFromMap(yyl2, d)
-			}
-		} else if yyct2 == codecSelferValueTypeArray1234 {
-			yyl2 := r.ReadArrayStart()
-			if yyl2 == 0 {
-				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-			} else {
-				x.codecDecodeSelfFromArray(yyl2, d)
-			}
-		} else {
-			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
-		}
-	}
-}
-
-func (x *DeschedulerConfiguration) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	var yys3Slc = z.DecScratchBuffer() // default slice to decode into
-	_ = yys3Slc
-	var yyhl3 bool = l >= 0
-	for yyj3 := 0; ; yyj3++ {
-		if yyhl3 {
-			if yyj3 >= l {
-				break
-			}
-		} else {
-			if r.CheckBreak() {
-				break
-			}
-		}
-		z.DecSendContainerState(codecSelfer_containerMapKey1234)
-		yys3Slc = r.DecodeBytes(yys3Slc, true, true)
-		yys3 := string(yys3Slc)
-		z.DecSendContainerState(codecSelfer_containerMapValue1234)
-		switch yys3 {
-		case "kind":
-			if r.TryDecodeAsNil() {
-				x.Kind = ""
-			} else {
-				yyv4 := &x.Kind
-				yym5 := z.DecBinary()
-				_ = yym5
-				if false {
-				} else {
-					*((*string)(yyv4)) = r.DecodeString()
-				}
-			}
-		case "apiVersion":
-			if r.TryDecodeAsNil() {
-				x.APIVersion = ""
-			} else {
-				yyv6 := &x.APIVersion
-				yym7 := z.DecBinary()
-				_ = yym7
-				if false {
-				} else {
-					*((*string)(yyv6)) = r.DecodeString()
-				}
-			}
-		case "deschedulingInterval":
-			if r.TryDecodeAsNil() {
-				x.DeschedulingInterval = 0
-			} else {
-				yyv8 := &x.DeschedulingInterval
-				yym9 := z.DecBinary()
-				_ = yym9
-				if false {
-				} else if z.HasExtensions() && z.DecExt(yyv8) {
-				} else {
-					*((*int64)(yyv8)) = int64(r.DecodeInt(64))
-				}
-			}
-		case "kubeconfigFile":
-			if r.TryDecodeAsNil() {
-				x.KubeconfigFile = ""
-			} else {
-				yyv10 := &x.KubeconfigFile
-				yym11 := z.DecBinary()
-				_ = yym11
-				if false {
-				} else {
-					*((*string)(yyv10)) = r.DecodeString()
-				}
-			}
-		case "policyConfigFile":
-			if r.TryDecodeAsNil() {
-				x.PolicyConfigFile = ""
-			} else {
-				yyv12 := &x.PolicyConfigFile
-				yym13 := z.DecBinary()
-				_ = yym13
-				if false {
-				} else {
-					*((*string)(yyv12)) = r.DecodeString()
-				}
-			}
-		case "dryRun":
-			if r.TryDecodeAsNil() {
-				x.DryRun = false
-			} else {
-				yyv14 := &x.DryRun
-				yym15 := z.DecBinary()
-				_ = yym15
-				if false {
-				} else {
-					*((*bool)(yyv14)) = r.DecodeBool()
-				}
-			}
-		default:
-			z.DecStructFieldNotFound(-1, yys3)
-		} // end switch yys3
-	} // end for yyj3
-	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
-}
-
-func (x *DeschedulerConfiguration) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
-	var h codecSelfer1234
-	z, r := codec1978.GenHelperDecoder(d)
-	_, _, _ = h, z, r
-	var yyj16 int
-	var yyb16 bool
-	var yyhl16 bool = l >= 0
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.Kind = ""
-	} else {
-		yyv17 := &x.Kind
-		yym18 := z.DecBinary()
-		_ = yym18
-		if false {
-		} else {
-			*((*string)(yyv17)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.APIVersion = ""
-	} else {
-		yyv19 := &x.APIVersion
-		yym20 := z.DecBinary()
-		_ = yym20
-		if false {
-		} else {
-			*((*string)(yyv19)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.DeschedulingInterval = 0
-	} else {
-		yyv21 := &x.DeschedulingInterval
-		yym22 := z.DecBinary()
-		_ = yym22
-		if false {
-		} else if z.HasExtensions() && z.DecExt(yyv21) {
-		} else {
-			*((*int64)(yyv21)) = int64(r.DecodeInt(64))
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.KubeconfigFile = ""
-	} else {
-		yyv23 := &x.KubeconfigFile
-		yym24 := z.DecBinary()
-		_ = yym24
-		if false {
-		} else {
-			*((*string)(yyv23)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.PolicyConfigFile = ""
-	} else {
-		yyv25 := &x.PolicyConfigFile
-		yym26 := z.DecBinary()
-		_ = yym26
-		if false {
-		} else {
-			*((*string)(yyv25)) = r.DecodeString()
-		}
-	}
-	yyj16++
-	if yyhl16 {
-		yyb16 = yyj16 > l
-	} else {
-		yyb16 = r.CheckBreak()
-	}
-	if yyb16 {
-		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-		return
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-	if r.TryDecodeAsNil() {
-		x.DryRun = false
-	} else {
-		yyv27 := &x.DryRun
-		yym28 := z.DecBinary()
-		_ = yym28
-		if false {
-		} else {
-			*((*bool)(yyv27)) = r.DecodeBool()
-		}
-	}
-	for {
-		yyj16++
-		if yyhl16 {
-			yyb16 = yyj16 > l
-		} else {
-			yyb16 = r.CheckBreak()
-		}
-		if yyb16 {
-			break
-		}
-		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
-		z.DecStructFieldNotFound(yyj16-1, "")
-	}
-	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
-}

pkg/apis/componentconfig/v1alpha1/types.go

@@ -22,6 +22,8 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type DeschedulerConfiguration struct {
 	metav1.TypeMeta `json:",inline"`
 
@@ -37,4 +39,13 @@ type DeschedulerConfiguration struct {
 
 	// Dry run
 	DryRun bool `json:"dryRun,omitempty"`
+
+	// Node selectors
+	NodeSelector string `json:"nodeSelector,omitempty"`
+
+	// MaxNoOfPodsToEvictPerNode restricts maximum of pods to be evicted per node.
+	MaxNoOfPodsToEvictPerNode int `json:"maxNoOfPodsToEvictPerNode,omitempty"`
+
+	// EvictLocalStoragePods allows pods using local storage to be evicted.
+	EvictLocalStoragePods bool `json:"evictLocalStoragePods,omitempty"`
 }

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

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,28 +16,36 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by conversion-gen. Do not edit it manually!
+// Code generated by conversion-gen. DO NOT EDIT.
 
 package v1alpha1
 
 import (
-	componentconfig "github.com/kubernetes-incubator/descheduler/pkg/apis/componentconfig"
+	time "time"
+
 	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	time "time"
+	componentconfig "sigs.k8s.io/descheduler/pkg/apis/componentconfig"
 )
 
 func init() {
-	SchemeBuilder.Register(RegisterConversions)
+	localSchemeBuilder.Register(RegisterConversions)
 }
 
 // RegisterConversions adds conversion functions to the given scheme.
 // Public to allow building arbitrary schemes.
-func RegisterConversions(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedConversionFuncs(
-		Convert_v1alpha1_DeschedulerConfiguration_To_componentconfig_DeschedulerConfiguration,
-		Convert_componentconfig_DeschedulerConfiguration_To_v1alpha1_DeschedulerConfiguration,
-	)
+func RegisterConversions(s *runtime.Scheme) error {
+	if err := s.AddGeneratedConversionFunc((*DeschedulerConfiguration)(nil), (*componentconfig.DeschedulerConfiguration)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1alpha1_DeschedulerConfiguration_To_componentconfig_DeschedulerConfiguration(a.(*DeschedulerConfiguration), b.(*componentconfig.DeschedulerConfiguration), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*componentconfig.DeschedulerConfiguration)(nil), (*DeschedulerConfiguration)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_componentconfig_DeschedulerConfiguration_To_v1alpha1_DeschedulerConfiguration(a.(*componentconfig.DeschedulerConfiguration), b.(*DeschedulerConfiguration), scope)
+	}); err != nil {
+		return err
+	}
+	return nil
 }
 
 func autoConvert_v1alpha1_DeschedulerConfiguration_To_componentconfig_DeschedulerConfiguration(in *DeschedulerConfiguration, out *componentconfig.DeschedulerConfiguration, s conversion.Scope) error {
@@ -45,6 +53,9 @@ func autoConvert_v1alpha1_DeschedulerConfiguration_To_componentconfig_Deschedule
 	out.KubeconfigFile = in.KubeconfigFile
 	out.PolicyConfigFile = in.PolicyConfigFile
 	out.DryRun = in.DryRun
+	out.NodeSelector = in.NodeSelector
+	out.MaxNoOfPodsToEvictPerNode = in.MaxNoOfPodsToEvictPerNode
+	out.EvictLocalStoragePods = in.EvictLocalStoragePods
 	return nil
 }
 
@@ -58,6 +69,9 @@ func autoConvert_componentconfig_DeschedulerConfiguration_To_v1alpha1_Deschedule
 	out.KubeconfigFile = in.KubeconfigFile
 	out.PolicyConfigFile = in.PolicyConfigFile
 	out.DryRun = in.DryRun
+	out.NodeSelector = in.NodeSelector
+	out.MaxNoOfPodsToEvictPerNode = in.MaxNoOfPodsToEvictPerNode
+	out.EvictLocalStoragePods = in.EvictLocalStoragePods
 	return nil
 }
 

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

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,34 +16,35 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by deepcopy-gen. Do not edit it manually!
+// Code generated by deepcopy-gen. DO NOT EDIT.
 
 package v1alpha1
 
 import (
-	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	reflect "reflect"
 )
 
-func init() {
-	SchemeBuilder.Register(RegisterDeepCopies)
+// 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
+	return
 }
 
-// RegisterDeepCopies adds deep-copy functions to the given scheme. Public
-// to allow building arbitrary schemes.
-func RegisterDeepCopies(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedDeepCopyFuncs(
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_v1alpha1_DeschedulerConfiguration, InType: reflect.TypeOf(&DeschedulerConfiguration{})},
-	)
-}
-
-// DeepCopy_v1alpha1_DeschedulerConfiguration is an autogenerated deepcopy function.
-func DeepCopy_v1alpha1_DeschedulerConfiguration(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerConfiguration)
-		out := out.(*DeschedulerConfiguration)
-		*out = *in
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerConfiguration.
+func (in *DeschedulerConfiguration) DeepCopy() *DeschedulerConfiguration {
+	if in == nil {
 		return nil
 	}
+	out := new(DeschedulerConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *DeschedulerConfiguration) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
 }

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

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,7 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by defaulter-gen. Do not edit it manually!
+// Code generated by defaulter-gen. DO NOT EDIT.
 
 package v1alpha1
 

pkg/apis/componentconfig/zz_generated.deepcopy.go

@@ -1,7 +1,7 @@
 // +build !ignore_autogenerated
 
 /*
-Copyright 2017 The Kubernetes Authors.
+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.
@@ -16,34 +16,35 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// This file was autogenerated by deepcopy-gen. Do not edit it manually!
+// Code generated by deepcopy-gen. DO NOT EDIT.
 
 package componentconfig
 
 import (
-	conversion "k8s.io/apimachinery/pkg/conversion"
 	runtime "k8s.io/apimachinery/pkg/runtime"
-	reflect "reflect"
 )
 
-func init() {
-	SchemeBuilder.Register(RegisterDeepCopies)
+// 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
+	return
 }
 
-// RegisterDeepCopies adds deep-copy functions to the given scheme. Public
-// to allow building arbitrary schemes.
-func RegisterDeepCopies(scheme *runtime.Scheme) error {
-	return scheme.AddGeneratedDeepCopyFuncs(
-		conversion.GeneratedDeepCopyFunc{Fn: DeepCopy_componentconfig_DeschedulerConfiguration, InType: reflect.TypeOf(&DeschedulerConfiguration{})},
-	)
-}
-
-// DeepCopy_componentconfig_DeschedulerConfiguration is an autogenerated deepcopy function.
-func DeepCopy_componentconfig_DeschedulerConfiguration(in interface{}, out interface{}, c *conversion.Cloner) error {
-	{
-		in := in.(*DeschedulerConfiguration)
-		out := out.(*DeschedulerConfiguration)
-		*out = *in
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DeschedulerConfiguration.
+func (in *DeschedulerConfiguration) DeepCopy() *DeschedulerConfiguration {
+	if in == nil {
 		return nil
 	}
+	out := new(DeschedulerConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *DeschedulerConfiguration) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
 }

pkg/descheduler/client/client.go

@@ -19,9 +19,11 @@ package client
 import (
 	"fmt"
 
+	clientset "k8s.io/client-go/kubernetes"
+	// Ensure to load all auth plugins.
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
 )
 
 func CreateClient(kubeconfig string) (clientset.Interface, error) {

pkg/descheduler/descheduler.go

@@ -17,17 +17,26 @@ limitations under the License.
 package descheduler
 
 import (
+	"context"
 	"fmt"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app/options"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler/client"
-	eutils "github.com/kubernetes-incubator/descheduler/pkg/descheduler/evictions/utils"
-	nodeutil "github.com/kubernetes-incubator/descheduler/pkg/descheduler/node"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler/strategies"
+	"k8s.io/api/core/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/klog"
+
+	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/informers"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/client"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	eutils "sigs.k8s.io/descheduler/pkg/descheduler/evictions/utils"
+	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
+	"sigs.k8s.io/descheduler/pkg/descheduler/strategies"
 )
 
 func Run(rs *options.DeschedulerServer) error {
-
+	ctx := context.Background()
 	rsclient, err := client.CreateClient(rs.KubeconfigFile)
 	if err != nil {
 		return err
@@ -39,22 +48,70 @@ func Run(rs *options.DeschedulerServer) error {
 		return err
 	}
 	if deschedulerPolicy == nil {
-		return fmt.Errorf("\ndeschedulerPolicy is nil\n")
-
+		return fmt.Errorf("deschedulerPolicy is nil")
 	}
+
 	evictionPolicyGroupVersion, err := eutils.SupportEviction(rs.Client)
 	if err != nil || len(evictionPolicyGroupVersion) == 0 {
 		return err
 	}
 
 	stopChannel := make(chan struct{})
-	nodes, err := nodeutil.ReadyNodes(rs.Client, stopChannel)
-	if err != nil {
-		return err
+	return RunDeschedulerStrategies(ctx, rs, deschedulerPolicy, evictionPolicyGroupVersion, stopChannel)
+}
+
+type strategyFunction func(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, evictLocalStoragePods bool, podEvictor *evictions.PodEvictor)
+
+func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer, deschedulerPolicy *api.DeschedulerPolicy, evictionPolicyGroupVersion string, stopChannel chan struct{}) error {
+	sharedInformerFactory := informers.NewSharedInformerFactory(rs.Client, 0)
+	nodeInformer := sharedInformerFactory.Core().V1().Nodes()
+
+	sharedInformerFactory.Start(stopChannel)
+	sharedInformerFactory.WaitForCacheSync(stopChannel)
+
+	strategyFuncs := map[string]strategyFunction{
+		"RemoveDuplicates":                        strategies.RemoveDuplicatePods,
+		"LowNodeUtilization":                      strategies.LowNodeUtilization,
+		"RemovePodsViolatingInterPodAntiAffinity": strategies.RemovePodsViolatingInterPodAntiAffinity,
+		"RemovePodsViolatingNodeAffinity":         strategies.RemovePodsViolatingNodeAffinity,
+		"RemovePodsViolatingNodeTaints":           strategies.RemovePodsViolatingNodeTaints,
+		"RemovePodsHavingTooManyRestarts":         strategies.RemovePodsHavingTooManyRestarts,
+		"PodLifeTime":                             strategies.PodLifeTime,
 	}
 
-	strategies.RemoveDuplicatePods(rs, deschedulerPolicy.Strategies["RemoveDuplicates"], evictionPolicyGroupVersion, nodes)
-	strategies.LowNodeUtilization(rs, deschedulerPolicy.Strategies["LowNodeUtilization"], evictionPolicyGroupVersion, nodes)
+	wait.Until(func() {
+		nodes, err := nodeutil.ReadyNodes(ctx, rs.Client, nodeInformer, rs.NodeSelector, stopChannel)
+		if err != nil {
+			klog.V(1).Infof("Unable to get ready nodes: %v", err)
+			close(stopChannel)
+			return
+		}
+
+		if len(nodes) <= 1 {
+			klog.V(1).Infof("The cluster size is 0 or 1 meaning eviction causes service disruption or degradation. So aborting..")
+			close(stopChannel)
+			return
+		}
+
+		podEvictor := evictions.NewPodEvictor(
+			rs.Client,
+			evictionPolicyGroupVersion,
+			rs.DryRun,
+			rs.MaxNoOfPodsToEvictPerNode,
+			nodes,
+		)
+
+		for name, f := range strategyFuncs {
+			if strategy := deschedulerPolicy.Strategies[api.StrategyName(name)]; strategy.Enabled {
+				f(ctx, rs.Client, strategy, nodes, rs.EvictLocalStoragePods, podEvictor)
+			}
+		}
+
+		// 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)
+		}
+	}, rs.DeschedulingInterval, stopChannel)
 
 	return nil
 }

pkg/descheduler/descheduler_test.go

@@ -0,0 +1,94 @@
+package descheduler
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"testing"
+	"time"
+
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/wait"
+	fakeclientset "k8s.io/client-go/kubernetes/fake"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/test"
+)
+
+func TestTaintsUpdated(t *testing.T) {
+	ctx := context.Background()
+	n1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	n2 := test.BuildTestNode("n2", 2000, 3000, 10, nil)
+
+	p1 := test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, nil)
+	p1.ObjectMeta.OwnerReferences = []metav1.OwnerReference{
+		{},
+	}
+
+	client := fakeclientset.NewSimpleClientset(n1, n2, p1)
+	dp := &api.DeschedulerPolicy{
+		Strategies: api.StrategyList{
+			"RemovePodsViolatingNodeTaints": api.DeschedulerStrategy{
+				Enabled: true,
+			},
+		},
+	}
+
+	stopChannel := make(chan struct{})
+	defer close(stopChannel)
+
+	rs := options.NewDeschedulerServer()
+	rs.Client = client
+	rs.DeschedulingInterval = 100 * time.Millisecond
+	go func() {
+		err := RunDeschedulerStrategies(ctx, rs, dp, "v1beta1", stopChannel)
+		if err != nil {
+			t.Fatalf("Unable to run descheduler strategies: %v", err)
+		}
+	}()
+
+	// Wait for few cycles and then verify the only pod still exists
+	time.Sleep(300 * time.Millisecond)
+	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) < 1 {
+		t.Errorf("The pod was evicted before a node was tained")
+	}
+
+	n1WithTaint := n1.DeepCopy()
+	n1WithTaint.Spec.Taints = []v1.Taint{
+		{
+			Key:    "key",
+			Value:  "value",
+			Effect: v1.TaintEffectNoSchedule,
+		},
+	}
+
+	if _, err := client.CoreV1().Nodes().Update(ctx, n1WithTaint, metav1.UpdateOptions{}); err != nil {
+		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
+		}
+
+		return false, nil
+	}); err != nil {
+		t.Fatalf("Unable to evict pod, node taint did not get propagated to descheduler strategies")
+	}
+}

pkg/descheduler/evictions/evictions.go

@@ -17,20 +17,96 @@ limitations under the License.
 package evictions
 
 import (
+	"context"
 	"fmt"
 
+	v1 "k8s.io/api/core/v1"
+	policy "k8s.io/api/policy/v1beta1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/kubernetes/pkg/api/v1"
-	policy "k8s.io/kubernetes/pkg/apis/policy/v1beta1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	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/klog"
 
-	eutils "github.com/kubernetes-incubator/descheduler/pkg/descheduler/evictions/utils"
+	eutils "sigs.k8s.io/descheduler/pkg/descheduler/evictions/utils"
 )
 
-func EvictPod(client clientset.Interface, pod *v1.Pod, policyGroupVersion string, dryRun bool) (bool, error) {
+// nodePodEvictedCount keeps count of pods evicted on node
+type nodePodEvictedCount map[*v1.Node]int
+
+type PodEvictor struct {
+	client             clientset.Interface
+	policyGroupVersion string
+	dryRun             bool
+	maxPodsToEvict     int
+	nodepodCount       nodePodEvictedCount
+}
+
+func NewPodEvictor(
+	client clientset.Interface,
+	policyGroupVersion string,
+	dryRun bool,
+	maxPodsToEvict int,
+	nodes []*v1.Node,
+) *PodEvictor {
+	var nodePodCount = make(nodePodEvictedCount)
+	for _, node := range nodes {
+		// Initialize podsEvicted till now with 0.
+		nodePodCount[node] = 0
+	}
+
+	return &PodEvictor{
+		client:             client,
+		policyGroupVersion: policyGroupVersion,
+		dryRun:             dryRun,
+		maxPodsToEvict:     maxPodsToEvict,
+		nodepodCount:       nodePodCount,
+	}
+}
+
+// NodeEvicted gives a number of pods evicted for node
+func (pe *PodEvictor) NodeEvicted(node *v1.Node) int {
+	return pe.nodepodCount[node]
+}
+
+// TotalEvicted gives a number of pods evicted through all nodes
+func (pe *PodEvictor) TotalEvicted() int {
+	var total int
+	for _, count := range pe.nodepodCount {
+		total += count
+	}
+	return total
+}
+
+// EvictPod returns non-nil error only when evicting a pod on a node is not
+// possible (due to maxPodsToEvict 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) (bool, error) {
+	if pe.maxPodsToEvict > 0 && pe.nodepodCount[node]+1 > pe.maxPodsToEvict {
+		return false, fmt.Errorf("Maximum number %v of evicted pods per %q node reached", pe.maxPodsToEvict, node.Name)
+	}
+
+	err := evictPod(ctx, pe.client, pod, pe.policyGroupVersion, pe.dryRun)
+	if err != nil {
+		// err is used only for logging purposes
+		klog.Errorf("Error evicting pod: %#v in namespace %#v (%#v)", pod.Name, pod.Namespace, err)
+		return false, nil
+	}
+
+	pe.nodepodCount[node]++
+	if pe.dryRun {
+		klog.V(1).Infof("Evicted pod in dry run mode: %#v in namespace %#v", pod.Name, pod.Namespace)
+	} else {
+		klog.V(1).Infof("Evicted pod: %#v in namespace %#v", pod.Name, pod.Namespace)
+	}
+	return true, nil
+}
+
+func evictPod(ctx context.Context, client clientset.Interface, pod *v1.Pod, policyGroupVersion string, dryRun bool) error {
 	if dryRun {
-		return true, nil
+		return nil
 	}
 	deleteOptions := &metav1.DeleteOptions{}
 	// GracePeriodSeconds ?
@@ -45,15 +121,21 @@ func EvictPod(client clientset.Interface, pod *v1.Pod, policyGroupVersion string
 		},
 		DeleteOptions: deleteOptions,
 	}
-	err := client.Policy().Evictions(eviction.Namespace).Evict(eviction)
+	err := client.PolicyV1beta1().Evictions(eviction.Namespace).Evict(ctx, eviction)
 
 	if err == nil {
-		return true, nil
-	} else if apierrors.IsTooManyRequests(err) {
-		return false, fmt.Errorf("error when evicting pod (ignoring) %q: %v", pod.Name, err)
-	} else if apierrors.IsNotFound(err) {
-		return true, fmt.Errorf("pod not found when evicting %q: %v", pod.Name, err)
-	} else {
-		return false, err
+		eventBroadcaster := record.NewBroadcaster()
+		eventBroadcaster.StartLogging(klog.V(3).Infof)
+		eventBroadcaster.StartRecordingToSink(&clientcorev1.EventSinkImpl{Interface: client.CoreV1().Events(pod.Namespace)})
+		r := eventBroadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: "sigs.k8s.io.descheduler"})
+		r.Event(pod, v1.EventTypeNormal, "Descheduled", "pod evicted by sigs.k8s.io/descheduler")
+		return nil
 	}
+	if apierrors.IsTooManyRequests(err) {
+		return fmt.Errorf("error when evicting pod (ignoring) %q: %v", pod.Name, err)
+	}
+	if apierrors.IsNotFound(err) {
+		return fmt.Errorf("pod not found when evicting %q: %v", pod.Name, err)
+	}
+	return err
 }

pkg/descheduler/evictions/evictions_test.go

@@ -17,24 +17,51 @@ limitations under the License.
 package evictions
 
 import (
-	"github.com/kubernetes-incubator/descheduler/test"
-	"k8s.io/apimachinery/pkg/runtime"
-	core "k8s.io/client-go/testing"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
+	"context"
 	"testing"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/kubernetes/fake"
+	core "k8s.io/client-go/testing"
+	"sigs.k8s.io/descheduler/test"
 )
 
 func TestEvictPod(t *testing.T) {
-	n1 := test.BuildTestNode("node1", 1000, 2000, 9)
-	p1 := test.BuildTestPod("p1", 400, 0, n1.Name)
-	fakeClient := &fake.Clientset{}
-	fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
-		return true, &v1.PodList{Items: []v1.Pod{*p1}}, nil
-	})
-	evicted, _ := EvictPod(fakeClient, p1, "v1", false)
-	if !evicted {
-		t.Errorf("Expected %v pod to be evicted", p1.Name)
+	ctx := context.Background()
+	node1 := test.BuildTestNode("node1", 1000, 2000, 9, nil)
+	pod1 := test.BuildTestPod("p1", 400, 0, "node1", nil)
+	tests := []struct {
+		description string
+		node        *v1.Node
+		pod         *v1.Pod
+		pods        []v1.Pod
+		want        error
+	}{
+		{
+			description: "test pod eviction - pod present",
+			node:        node1,
+			pod:         pod1,
+			pods:        []v1.Pod{*pod1},
+			want:        nil,
+		},
+		{
+			description: "test pod eviction - pod absent",
+			node:        node1,
+			pod:         pod1,
+			pods:        []v1.Pod{*test.BuildTestPod("p2", 400, 0, "node1", nil), *test.BuildTestPod("p3", 450, 0, "node1", nil)},
+			want:        nil,
+		},
 	}
 
+	for _, test := range tests {
+		fakeClient := &fake.Clientset{}
+		fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
+			return true, &v1.PodList{Items: test.pods}, nil
+		})
+		got := evictPod(ctx, fakeClient, test.pod, "v1", false)
+		if got != test.want {
+			t.Errorf("Test error for Desc: %s. Expected %v pod eviction to be %v, got %v", test.description, test.pod.Name, test.want, got)
+		}
+	}
 }

pkg/descheduler/evictions/utils/utils.go

@@ -17,7 +17,7 @@ limitations under the License.
 package utils
 
 import (
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	clientset "k8s.io/client-go/kubernetes"
 )
 
 const (

pkg/descheduler/node/node.go

@@ -17,35 +17,43 @@ limitations under the License.
 package node
 
 import (
-	"fmt"
-	"time"
-
+	"context"
+	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/client-go/tools/cache"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
-	corelisters "k8s.io/kubernetes/pkg/client/listers/core/v1"
+	coreinformers "k8s.io/client-go/informers/core/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/klog"
+	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 // ReadyNodes returns ready nodes irrespective of whether they are
 // schedulable or not.
-func ReadyNodes(client clientset.Interface, stopChannel <-chan struct{}) ([]*v1.Node, error) {
-	nl := GetNodeLister(client, stopChannel)
-	nodes, err := nl.List(labels.Everything())
+func ReadyNodes(ctx context.Context, client clientset.Interface, nodeInformer coreinformers.NodeInformer, nodeSelector string, stopChannel <-chan struct{}) ([]*v1.Node, error) {
+	ns, err := labels.Parse(nodeSelector)
 	if err != nil {
 		return []*v1.Node{}, err
 	}
 
+	var nodes []*v1.Node
+	// err is defined above
+	if nodes, err = nodeInformer.Lister().List(ns); err != nil {
+		return []*v1.Node{}, err
+	}
+
 	if len(nodes) == 0 {
-		var err error
-		nItems, err := client.Core().Nodes().List(metav1.ListOptions{})
+		klog.V(2).Infof("node lister returned empty list, now fetch directly")
+
+		nItems, err := client.CoreV1().Nodes().List(ctx, metav1.ListOptions{LabelSelector: nodeSelector})
 		if err != nil {
 			return []*v1.Node{}, err
 		}
 
-		for i, _ := range nItems.Items {
+		if nItems == nil || len(nItems.Items) == 0 {
+			return []*v1.Node{}, nil
+		}
+
+		for i := range nItems.Items {
 			node := nItems.Items[i]
 			nodes = append(nodes, &node)
 		}
@@ -60,16 +68,7 @@ func ReadyNodes(client clientset.Interface, stopChannel <-chan struct{}) ([]*v1.
 	return readyNodes, nil
 }
 
-func GetNodeLister(client clientset.Interface, stopChannel <-chan struct{}) corelisters.NodeLister {
-	listWatcher := cache.NewListWatchFromClient(client.Core().RESTClient(), "nodes", v1.NamespaceAll, fields.Everything())
-	store := cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
-	nodeLister := corelisters.NewNodeLister(store)
-	reflector := cache.NewReflector(listWatcher, &v1.Node{}, store, time.Hour)
-	reflector.RunUntil(stopChannel)
-
-	return nodeLister
-}
-
+// IsReady checks if the descheduler could run against given node.
 func IsReady(node *v1.Node) bool {
 	for i := range node.Status.Conditions {
 		cond := &node.Status.Conditions[i]
@@ -78,20 +77,63 @@ func IsReady(node *v1.Node) bool {
 		// - NodeOutOfDisk condition status is ConditionFalse,
 		// - NodeNetworkUnavailable condition status is ConditionFalse.
 		if cond.Type == v1.NodeReady && cond.Status != v1.ConditionTrue {
-			fmt.Printf("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
+			klog.V(1).Infof("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
 			return false
 		} /*else if cond.Type == v1.NodeOutOfDisk && cond.Status != v1.ConditionFalse {
-			glog.V(4).Infof("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
+			klog.V(4).Infof("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
 			return false
 		} else if cond.Type == v1.NodeNetworkUnavailable && cond.Status != v1.ConditionFalse {
-			glog.V(4).Infof("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
+			klog.V(4).Infof("Ignoring node %v with %v condition status %v", node.Name, cond.Type, cond.Status)
 			return false
 		}*/
 	}
 	// Ignore nodes that are marked unschedulable
 	/*if node.Spec.Unschedulable {
-		glog.V(4).Infof("Ignoring node %v since it is unschedulable", node.Name)
+		klog.V(4).Infof("Ignoring node %v since it is unschedulable", node.Name)
 		return false
 	}*/
 	return true
 }
+
+// IsNodeUnschedulable checks if the node is unschedulable. This is helper function to check only in case of
+// underutilized node so that they won't be accounted for.
+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 {
+
+		ok, err := utils.PodMatchNodeSelector(pod, node)
+		if err != nil || !ok {
+			continue
+		}
+		if !IsNodeUnschedulable(node) {
+			klog.V(2).Infof("Pod %v can possibly be scheduled on %v", pod.Name, node.Name)
+			return true
+		}
+	}
+	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)
+
+	if err != nil {
+		klog.Error(err)
+		return false
+	}
+
+	if !ok {
+		klog.V(1).Infof("Pod %v does not fit on node %v", pod.Name, node.Name)
+		return false
+	}
+
+	klog.V(3).Infof("Pod %v fits on node %v", pod.Name, node.Name)
+	return true
+}

pkg/descheduler/node/node_test.go

@@ -17,66 +17,381 @@ limitations under the License.
 package node
 
 import (
-	"fmt"
+	"context"
 	"testing"
 
-	"github.com/kubernetes-incubator/descheduler/test"
-	"k8s.io/apimachinery/pkg/runtime"
-	core "k8s.io/client-go/testing"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/kubernetes/fake"
+	"sigs.k8s.io/descheduler/test"
 )
 
 func TestReadyNodes(t *testing.T) {
-	fakeClient := &fake.Clientset{}
-	node1 := test.BuildTestNode("node1", 1000, 2000, 9)
-	node1.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeOutOfDisk, Status: v1.ConditionTrue}}
-	node2 := test.BuildTestNode("node2", 1000, 2000, 9)
-	node3 := test.BuildTestNode("node3", 1000, 2000, 9)
-	node3.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeMemoryPressure, Status: v1.ConditionTrue}}
-	node4 := test.BuildTestNode("node4", 1000, 2000, 9)
-	node4.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeNetworkUnavailable, Status: v1.ConditionTrue}}
-	node5 := test.BuildTestNode("node5", 1000, 2000, 9)
-	node5.Spec.Unschedulable = true
-	node6 := test.BuildTestNode("node6", 1000, 2000, 9)
-	node6.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeReady, Status: v1.ConditionFalse}}
-
-	fakeClient.Fake.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
-		getAction := action.(core.GetAction)
-		switch getAction.GetName() {
-		case node1.Name:
-			return true, node1, nil
-		case node2.Name:
-			return true, node2, nil
-		case node3.Name:
-			return true, node3, nil
-		case node4.Name:
-			return true, node4, nil
-		case node5.Name:
-			return true, node5, nil
-		case node6.Name:
-			return true, node6, nil
-		}
-		return true, nil, fmt.Errorf("Wrong node: %v", getAction.GetName())
-	})
+	node1 := test.BuildTestNode("node2", 1000, 2000, 9, nil)
+	node2 := test.BuildTestNode("node3", 1000, 2000, 9, nil)
+	node2.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeMemoryPressure, Status: v1.ConditionTrue}}
+	node3 := test.BuildTestNode("node4", 1000, 2000, 9, nil)
+	node3.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeNetworkUnavailable, Status: v1.ConditionTrue}}
+	node4 := test.BuildTestNode("node5", 1000, 2000, 9, nil)
+	node4.Spec.Unschedulable = true
+	node5 := test.BuildTestNode("node6", 1000, 2000, 9, nil)
+	node5.Status.Conditions = []v1.NodeCondition{{Type: v1.NodeReady, Status: v1.ConditionFalse}}
 
 	if !IsReady(node1) {
-		t.Errorf("Expected %v to be ready", node1.Name)
-	}
-	if !IsReady(node2) {
 		t.Errorf("Expected %v to be ready", node2.Name)
 	}
-	if !IsReady(node3) {
+	if !IsReady(node2) {
 		t.Errorf("Expected %v to be ready", node3.Name)
 	}
-	if !IsReady(node4) {
+	if !IsReady(node3) {
 		t.Errorf("Expected %v to be ready", node4.Name)
 	}
-	if !IsReady(node5) {
+	if !IsReady(node4) {
 		t.Errorf("Expected %v to be ready", node5.Name)
 	}
-	if IsReady(node6) {
-		t.Errorf("Expected %v to be not ready", node6.Name)
+	if IsReady(node5) {
+		t.Errorf("Expected %v to be not ready", node5.Name)
 	}
 
 }
+
+func TestReadyNodesWithNodeSelector(t *testing.T) {
+	ctx := context.Background()
+	node1 := test.BuildTestNode("node1", 1000, 2000, 9, nil)
+	node1.Labels = map[string]string{"type": "compute"}
+	node2 := test.BuildTestNode("node2", 1000, 2000, 9, nil)
+	node2.Labels = map[string]string{"type": "infra"}
+
+	fakeClient := fake.NewSimpleClientset(node1, node2)
+	nodeSelector := "type=compute"
+
+	sharedInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
+	nodeInformer := sharedInformerFactory.Core().V1().Nodes()
+
+	stopChannel := make(chan struct{}, 0)
+	sharedInformerFactory.Start(stopChannel)
+	sharedInformerFactory.WaitForCacheSync(stopChannel)
+	defer close(stopChannel)
+
+	nodes, _ := ReadyNodes(ctx, fakeClient, nodeInformer, nodeSelector, nil)
+
+	if nodes[0].Name != "node1" {
+		t.Errorf("Expected node1, got %s", nodes[0].Name)
+	}
+}
+
+func TestIsNodeUnschedulable(t *testing.T) {
+	tests := []struct {
+		description     string
+		node            *v1.Node
+		IsUnSchedulable bool
+	}{
+		{
+			description: "Node is expected to be schedulable",
+			node: &v1.Node{
+				Spec: v1.NodeSpec{Unschedulable: false},
+			},
+			IsUnSchedulable: false,
+		},
+		{
+			description: "Node is not expected to be schedulable because of unschedulable field",
+			node: &v1.Node{
+				Spec: v1.NodeSpec{Unschedulable: true},
+			},
+			IsUnSchedulable: true,
+		},
+	}
+	for _, test := range tests {
+		actualUnSchedulable := IsNodeUnschedulable(test.node)
+		if actualUnSchedulable != test.IsUnSchedulable {
+			t.Errorf("Test %#v failed", test.description)
+		}
+	}
+
+}
+
+func TestPodFitsCurrentNode(t *testing.T) {
+
+	nodeLabelKey := "kubernetes.io/desiredNode"
+	nodeLabelValue := "yes"
+
+	tests := []struct {
+		description string
+		pod         *v1.Pod
+		node        *v1.Node
+		success     bool
+	}{
+		{
+			description: "Pod with nodeAffinity set, expected to fit the node",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			node: &v1.Node{
+				ObjectMeta: metav1.ObjectMeta{
+					Labels: map[string]string{
+						nodeLabelKey: nodeLabelValue,
+					},
+				},
+			},
+			success: true,
+		},
+		{
+			description: "Pod with nodeAffinity set, not expected to fit the node",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			node: &v1.Node{
+				ObjectMeta: metav1.ObjectMeta{
+					Labels: map[string]string{
+						nodeLabelKey: "no",
+					},
+				},
+			},
+			success: false,
+		},
+	}
+
+	for _, tc := range tests {
+		actual := PodFitsCurrentNode(tc.pod, tc.node)
+		if actual != tc.success {
+			t.Errorf("Test %#v failed", tc.description)
+		}
+	}
+}
+
+func TestPodFitsAnyNode(t *testing.T) {
+
+	nodeLabelKey := "kubernetes.io/desiredNode"
+	nodeLabelValue := "yes"
+
+	tests := []struct {
+		description string
+		pod         *v1.Pod
+		nodes       []*v1.Node
+		success     bool
+	}{
+		{
+			description: "Pod expected to fit one of the nodes",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			nodes: []*v1.Node{
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: nodeLabelValue,
+						},
+					},
+				},
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: "no",
+						},
+					},
+				},
+			},
+			success: true,
+		},
+		{
+			description: "Pod expected to fit one of the nodes (error node first)",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			nodes: []*v1.Node{
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: "no",
+						},
+					},
+				},
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: nodeLabelValue,
+						},
+					},
+				},
+			},
+			success: true,
+		},
+		{
+			description: "Pod expected to fit none of the nodes",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			nodes: []*v1.Node{
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: "unfit1",
+						},
+					},
+				},
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: "unfit2",
+						},
+					},
+				},
+			},
+			success: false,
+		},
+		{
+			description: "Nodes are unschedulable but labels match, should fail",
+			pod: &v1.Pod{
+				Spec: v1.PodSpec{
+					Affinity: &v1.Affinity{
+						NodeAffinity: &v1.NodeAffinity{
+							RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+								NodeSelectorTerms: []v1.NodeSelectorTerm{
+									{
+										MatchExpressions: []v1.NodeSelectorRequirement{
+											{
+												Key:      nodeLabelKey,
+												Operator: "In",
+												Values: []string{
+													nodeLabelValue,
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			nodes: []*v1.Node{
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: nodeLabelValue,
+						},
+					},
+					Spec: v1.NodeSpec{
+						Unschedulable: true,
+					},
+				},
+				{
+					ObjectMeta: metav1.ObjectMeta{
+						Labels: map[string]string{
+							nodeLabelKey: "no",
+						},
+					},
+				},
+			},
+			success: false,
+		},
+	}
+
+	for _, tc := range tests {
+		actual := PodFitsAnyNode(tc.pod, tc.nodes)
+		if actual != tc.success {
+			t.Errorf("Test %#v failed", tc.description)
+		}
+	}
+}

pkg/descheduler/pod/pods.go

@@ -17,19 +17,52 @@ limitations under the License.
 package pod
 
 import (
+	"context"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/fields"
-	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/kubernetes/pkg/api"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/api/v1/helper/qos"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
-	"k8s.io/kubernetes/pkg/kubelet/types"
+	clientset "k8s.io/client-go/kubernetes"
+	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
-func ListPodsOnANode(client clientset.Interface, node *v1.Node) ([]*v1.Pod, error) {
-	podList, err := client.CoreV1().Pods(v1.NamespaceAll).List(
-		metav1.ListOptions{FieldSelector: fields.SelectorFromSet(fields.Set{"spec.nodeName": node.Name}).String()})
+const (
+	evictPodAnnotationKey = "descheduler.alpha.kubernetes.io/evict"
+)
+
+// IsEvictable checks if a pod is evictable or not.
+func IsEvictable(pod *v1.Pod, evictLocalStoragePods bool) bool {
+	ownerRefList := OwnerRef(pod)
+	if !HaveEvictAnnotation(pod) && (IsMirrorPod(pod) || (!evictLocalStoragePods && IsPodWithLocalStorage(pod)) || len(ownerRefList) == 0 || IsDaemonsetPod(ownerRefList) || IsCriticalPod(pod)) {
+		return false
+	}
+	return true
+}
+
+// ListEvictablePodsOnNode returns the list of evictable pods on node.
+func ListEvictablePodsOnNode(ctx context.Context, client clientset.Interface, node *v1.Node, evictLocalStoragePods bool) ([]*v1.Pod, error) {
+	pods, err := ListPodsOnANode(ctx, client, node)
+	if err != nil {
+		return []*v1.Pod{}, err
+	}
+	evictablePods := make([]*v1.Pod, 0)
+	for _, pod := range pods {
+		if !IsEvictable(pod, evictLocalStoragePods) {
+			continue
+		} else {
+			evictablePods = append(evictablePods, pod)
+		}
+	}
+	return evictablePods, nil
+}
+
+func ListPodsOnANode(ctx context.Context, client clientset.Interface, node *v1.Node) ([]*v1.Pod, error) {
+	fieldSelector, err := fields.ParseSelector("spec.nodeName=" + node.Name + ",status.phase!=" + string(v1.PodSucceeded) + ",status.phase!=" + string(v1.PodFailed))
+	if err != nil {
+		return []*v1.Pod{}, err
+	}
+
+	podList, err := client.CoreV1().Pods(v1.NamespaceAll).List(ctx,
+		metav1.ListOptions{FieldSelector: fieldSelector.String()})
 	if err != nil {
 		return []*v1.Pod{}, err
 	}
@@ -38,36 +71,42 @@ func ListPodsOnANode(client clientset.Interface, node *v1.Node) ([]*v1.Pod, erro
 	for i := range podList.Items {
 		pods = append(pods, &podList.Items[i])
 	}
-
 	return pods, nil
 }
 
 func IsCriticalPod(pod *v1.Pod) bool {
-	return types.IsCriticalPod(pod)
+	return utils.IsCriticalPod(pod)
 }
 
 func IsBestEffortPod(pod *v1.Pod) bool {
-	return qos.GetPodQOS(pod) == v1.PodQOSBestEffort
+	return utils.GetPodQOS(pod) == v1.PodQOSBestEffort
 }
 
 func IsBurstablePod(pod *v1.Pod) bool {
-	return qos.GetPodQOS(pod) == v1.PodQOSBurstable
+	return utils.GetPodQOS(pod) == v1.PodQOSBurstable
 }
 
 func IsGuaranteedPod(pod *v1.Pod) bool {
-	return qos.GetPodQOS(pod) == v1.PodQOSGuaranteed
+	return utils.GetPodQOS(pod) == v1.PodQOSGuaranteed
 }
 
-func IsDaemonsetPod(sr *v1.SerializedReference) bool {
-	if sr != nil {
-		return sr.Reference.Kind == "DaemonSet"
+func IsDaemonsetPod(ownerRefList []metav1.OwnerReference) bool {
+	for _, ownerRef := range ownerRefList {
+		if ownerRef.Kind == "DaemonSet" {
+			return true
+		}
 	}
 	return false
 }
 
 // IsMirrorPod checks whether the pod is a mirror pod.
 func IsMirrorPod(pod *v1.Pod) bool {
-	_, found := pod.ObjectMeta.Annotations[types.ConfigMirrorAnnotationKey]
+	return utils.IsMirrorPod(pod)
+}
+
+// HaveEvictAnnotation checks if the pod have evict annotation
+func HaveEvictAnnotation(pod *v1.Pod) bool {
+	_, found := pod.ObjectMeta.Annotations[evictPodAnnotationKey]
 	return found
 }
 
@@ -81,15 +120,7 @@ func IsPodWithLocalStorage(pod *v1.Pod) bool {
 	return false
 }
 
-// CreatorRef returns the kind of the creator reference of the pod.
-func CreatorRef(pod *v1.Pod) (*v1.SerializedReference, error) {
-	creatorRef, found := pod.ObjectMeta.Annotations[v1.CreatedByAnnotation]
-	if !found {
-		return nil, nil
-	}
-	var sr v1.SerializedReference
-	if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), []byte(creatorRef), &sr); err != nil {
-		return nil, err
-	}
-	return &sr, nil
+// OwnerRef returns the ownerRefList for the pod.
+func OwnerRef(pod *v1.Pod) []metav1.OwnerReference {
+	return pod.ObjectMeta.GetOwnerReferences()
 }

pkg/descheduler/pod/pods_test.go

@@ -19,34 +19,192 @@ package pod
 import (
 	"testing"
 
-	"github.com/kubernetes-incubator/descheduler/test"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
-	"k8s.io/kubernetes/pkg/api/v1"
+	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/test"
 )
 
+func TestIsEvictable(t *testing.T) {
+	n1 := test.BuildTestNode("node1", 1000, 2000, 13, nil)
+	type testCase struct {
+		pod                   *v1.Pod
+		runBefore             func(*v1.Pod)
+		evictLocalStoragePods bool
+		result                bool
+	}
+
+	testCases := []testCase{
+		{
+			pod: test.BuildTestPod("p1", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p2", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+				pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p3", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p4", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+				pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p5", 400, 0, n1.Name, nil),
+			runBefore: 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,
+			result:                false,
+		}, {
+			pod: test.BuildTestPod("p6", 400, 0, n1.Name, nil),
+			runBefore: 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,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p7", 400, 0, n1.Name, nil),
+			runBefore: 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,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p8", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                false,
+		}, {
+			pod: test.BuildTestPod("p9", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
+				pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p10", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.Annotations = test.GetMirrorPodAnnotation()
+			},
+			evictLocalStoragePods: false,
+			result:                false,
+		}, {
+			pod: test.BuildTestPod("p11", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				pod.Annotations = test.GetMirrorPodAnnotation()
+				pod.Annotations["descheduler.alpha.kubernetes.io/evict"] = "true"
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		}, {
+			pod: test.BuildTestPod("p12", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				priority := utils.SystemCriticalPriority
+				pod.Spec.Priority = &priority
+			},
+			evictLocalStoragePods: false,
+			result:                false,
+		}, {
+			pod: test.BuildTestPod("p13", 400, 0, n1.Name, nil),
+			runBefore: func(pod *v1.Pod) {
+				priority := utils.SystemCriticalPriority
+				pod.Spec.Priority = &priority
+				pod.Annotations = map[string]string{
+					"descheduler.alpha.kubernetes.io/evict": "true",
+				}
+			},
+			evictLocalStoragePods: false,
+			result:                true,
+		},
+	}
+
+	for _, test := range testCases {
+		test.runBefore(test.pod)
+		result := IsEvictable(test.pod, test.evictLocalStoragePods)
+		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)
-	p1 := test.BuildTestPod("p1", 400, 0, n1.Name)
+	n1 := test.BuildTestNode("node1", 1000, 2000, 9, nil)
+	p1 := test.BuildTestPod("p1", 400, 0, n1.Name, nil)
 
 	// These won't be evicted.
-	p2 := test.BuildTestPod("p2", 400, 0, n1.Name)
-	p3 := test.BuildTestPod("p3", 400, 0, n1.Name)
-	p4 := test.BuildTestPod("p4", 400, 0, n1.Name)
-	p5 := test.BuildTestPod("p5", 400, 0, n1.Name)
+	p2 := test.BuildTestPod("p2", 400, 0, n1.Name, nil)
+	p3 := test.BuildTestPod("p3", 400, 0, n1.Name, nil)
+	p4 := test.BuildTestPod("p4", 400, 0, n1.Name, nil)
+	p5 := test.BuildTestPod("p5", 400, 0, n1.Name, nil)
+	p6 := test.BuildTestPod("p6", 400, 0, n1.Name, nil)
 
-	p1.Annotations = test.GetReplicaSetAnnotation()
+	p6.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+
+	p1.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList()
 	// The following 4 pods won't get evicted.
 	// A daemonset.
-	p2.Annotations = test.GetDaemonSetAnnotation()
+	//p2.Annotations = test.GetDaemonSetAnnotation()
+	p2.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
 	// A pod with local storage.
-	p3.Annotations = test.GetNormalPodAnnotation()
+	p3.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
 	p3.Spec.Volumes = []v1.Volume{
 		{
 			Name: "sample",
 			VolumeSource: v1.VolumeSource{
 				HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
 				EmptyDir: &v1.EmptyDirVolumeSource{
-					SizeLimit: *resource.NewQuantity(int64(10), resource.BinarySI)},
+					SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
 			},
 		},
 	}
@@ -54,7 +212,10 @@ func TestPodTypes(t *testing.T) {
 	p4.Annotations = test.GetMirrorPodAnnotation()
 	// A Critical Pod.
 	p5.Namespace = "kube-system"
-	p5.Annotations = test.GetCriticalPodAnnotation()
+	priority := utils.SystemCriticalPriority
+	p5.Spec.Priority = &priority
+	systemCriticalPriority := utils.SystemCriticalPriority
+	p5.Spec.Priority = &systemCriticalPriority
 	if !IsMirrorPod(p4) {
 		t.Errorf("Expected p4 to be a mirror pod.")
 	}
@@ -64,12 +225,12 @@ func TestPodTypes(t *testing.T) {
 	if !IsPodWithLocalStorage(p3) {
 		t.Errorf("Expected p3 to be a pod with local storage.")
 	}
-	sr, _ := CreatorRef(p2)
-	if !IsDaemonsetPod(sr) {
+	ownerRefList := OwnerRef(p2)
+	if !IsDaemonsetPod(ownerRefList) {
 		t.Errorf("Expected p2 to be a daemonset pod.")
 	}
-	sr, _ = CreatorRef(p1)
-	if IsDaemonsetPod(sr) || IsPodWithLocalStorage(p1) || IsCriticalPod(p1) || IsMirrorPod(p1) {
+	ownerRefList = OwnerRef(p1)
+	if IsDaemonsetPod(ownerRefList) || IsPodWithLocalStorage(p1) || IsCriticalPod(p1) || IsMirrorPod(p1) {
 		t.Errorf("Expected p1 to be a normal pod.")
 	}
 

pkg/descheduler/policyconfig.go

@@ -21,16 +21,16 @@ import (
 	"io/ioutil"
 
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/klog"
 
-	"github.com/kubernetes-incubator/descheduler/pkg/api"
-	_ "github.com/kubernetes-incubator/descheduler/pkg/api/install"
-	"github.com/kubernetes-incubator/descheduler/pkg/api/v1alpha1"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler/scheme"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/api/v1alpha1"
+	"sigs.k8s.io/descheduler/pkg/descheduler/scheme"
 )
 
 func LoadPolicyConfig(policyConfigFile string) (*api.DeschedulerPolicy, error) {
 	if policyConfigFile == "" {
-		fmt.Printf("policy config file not specified")
+		klog.V(1).Infof("policy config file not specified")
 		return nil, nil
 	}
 

pkg/descheduler/scheme/scheme.go

@@ -17,17 +17,11 @@ limitations under the License.
 package scheme
 
 import (
-	"os"
-
-	"k8s.io/apimachinery/pkg/apimachinery/announced"
-	"k8s.io/apimachinery/pkg/apimachinery/registered"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/serializer"
 )
 
 var (
-	GroupFactoryRegistry = make(announced.APIGroupFactoryRegistry)
-	Registry             = registered.NewOrDie(os.Getenv("DESCHEDULER_API_VERSIONS"))
-	Scheme               = runtime.NewScheme()
-	Codecs               = serializer.NewCodecFactory(Scheme)
+	Scheme = runtime.NewScheme()
+	Codecs = serializer.NewCodecFactory(Scheme)
 )

pkg/descheduler/strategies/duplicates.go

@@ -17,81 +17,113 @@ limitations under the License.
 package strategies
 
 import (
-	"fmt"
+	"context"
+	"reflect"
+	"sort"
 	"strings"
 
-	"k8s.io/kubernetes/pkg/api/v1"
-	//TODO: Change to client-go instead of generated clientset.
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	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"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app/options"
-	"github.com/kubernetes-incubator/descheduler/pkg/api"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler/evictions"
-	podutil "github.com/kubernetes-incubator/descheduler/pkg/descheduler/pod"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 )
 
-//type creator string
-type DuplicatePodsMap map[string][]*v1.Pod
-
 // 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. As of now, this strategy won't evict daemonsets, mirror pods, critical pods and pods with local storages.
-func RemoveDuplicatePods(ds *options.DeschedulerServer, strategy api.DeschedulerStrategy, policyGroupVersion string, nodes []*v1.Node) {
-	if !strategy.Enabled {
-		return
-	}
-	deleteDuplicatePods(ds.Client, policyGroupVersion, nodes, ds.DryRun)
-}
-
-// deleteDuplicatePods evicts the pod from node and returns the count of evicted pods.
-func deleteDuplicatePods(client clientset.Interface, policyGroupVersion string, nodes []*v1.Node, dryRun bool) int {
-	podsEvicted := 0
+// 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,
+	evictLocalStoragePods bool,
+	podEvictor *evictions.PodEvictor,
+) {
 	for _, node := range nodes {
-		fmt.Printf("\nProcessing node: %#v\n", node.Name)
-		dpm := ListDuplicatePodsOnANode(client, node)
-		for creator, pods := range dpm {
-			if len(pods) > 1 {
-				fmt.Printf("%#v\n", creator)
-				// i = 0 does not evict the first pod
-				for i := 1; i < len(pods); i++ {
-					//fmt.Printf("Removing duplicate pod %#v\n", k.Name)
-					success, err := evictions.EvictPod(client, pods[i], policyGroupVersion, dryRun)
-					if !success {
-						//TODO: change fmt.Printf as glogs.
-						fmt.Printf("Error when evicting pod: %#v (%#v)\n", pods[i].Name, err)
-					} else {
-						podsEvicted++
-						fmt.Printf("Evicted pod: %#v (%#v)\n", pods[i].Name, err)
-					}
-				}
+		klog.V(1).Infof("Processing node: %#v", node.Name)
+		duplicatePods := listDuplicatePodsOnANode(ctx, client, node, strategy, evictLocalStoragePods)
+		for _, pod := range duplicatePods {
+			if _, err := podEvictor.EvictPod(ctx, pod, node); err != nil {
+				klog.Errorf("Error evicting pod: (%#v)", err)
+				break
 			}
 		}
 	}
-	return podsEvicted
 }
 
-// ListDuplicatePodsOnANode lists duplicate pods on a given node.
-func ListDuplicatePodsOnANode(client clientset.Interface, node *v1.Node) DuplicatePodsMap {
-	pods, err := podutil.ListPodsOnANode(client, node)
+// listDuplicatePodsOnANode lists duplicate pods on a given node.
+// It checks for pods which have the same owner and have at least 1 container with the same image spec
+func listDuplicatePodsOnANode(ctx context.Context, client clientset.Interface, node *v1.Node, strategy api.DeschedulerStrategy, evictLocalStoragePods bool) []*v1.Pod {
+	pods, err := podutil.ListEvictablePodsOnNode(ctx, client, node, evictLocalStoragePods)
 	if err != nil {
 		return nil
 	}
-	return FindDuplicatePods(pods)
+
+	duplicatePods := make([]*v1.Pod, 0, len(pods))
+	// Each pod has a list of owners and a list of containers, and each container has 1 image spec.
+	// For each pod, we go through all the OwnerRef/Image mappings and represent them as a "key" string.
+	// All of those mappings together makes a list of "key" strings that essentially represent that pod's uniqueness.
+	// This list of keys representing a single pod is then sorted alphabetically.
+	// If any other pod has a list that matches that pod's list, those pods are undeniably duplicates for the following reasons:
+	//   - The 2 pods have the exact same ownerrefs
+	//   - The 2 pods have the exact same container images
+	//
+	// duplicateKeysMap maps the first Namespace/Kind/Name/Image in a pod's list to a 2D-slice of all the other lists where that is the first key
+	// (Since we sort each pod's list, we only need to key the map on the first entry in each list. Any pod that doesn't have
+	// the same first entry is clearly not a duplicate. This makes lookup quick and minimizes storage needed).
+	// If any of the existing lists for that first key matches the current pod's list, the current pod is a duplicate.
+	// If not, then we add this pod's list to the list of lists for that key.
+	duplicateKeysMap := map[string][][]string{}
+	for _, pod := range pods {
+		ownerRefList := podutil.OwnerRef(pod)
+		if hasExcludedOwnerRefKind(ownerRefList, strategy) {
+			continue
+		}
+		podContainerKeys := make([]string, 0, len(ownerRefList)*len(pod.Spec.Containers))
+		for _, ownerRef := range ownerRefList {
+			for _, container := range pod.Spec.Containers {
+				// Namespace/Kind/Name should be unique for the cluster.
+				// We also consider the image, as 2 pods could have the same owner but serve different purposes
+				// So any non-unique Namespace/Kind/Name/Image pattern is a duplicate pod.
+				s := strings.Join([]string{pod.ObjectMeta.Namespace, ownerRef.Kind, ownerRef.Name, container.Image}, "/")
+				podContainerKeys = append(podContainerKeys, s)
+			}
+		}
+		sort.Strings(podContainerKeys)
+
+		// If there have been any other pods with the same first "key", look through all the lists to see if any match
+		if existing, ok := duplicateKeysMap[podContainerKeys[0]]; ok {
+			for _, keys := range existing {
+				if reflect.DeepEqual(keys, podContainerKeys) {
+					duplicatePods = append(duplicatePods, pod)
+					break
+				}
+				// Found no matches, add this list of keys to the list of lists that have the same first key
+				duplicateKeysMap[podContainerKeys[0]] = append(duplicateKeysMap[podContainerKeys[0]], podContainerKeys)
+			}
+		} else {
+			// This is the first pod we've seen that has this first "key" entry
+			duplicateKeysMap[podContainerKeys[0]] = [][]string{podContainerKeys}
+		}
+	}
+	return duplicatePods
 }
 
-// FindDuplicatePods takes a list of pods and returns a duplicatePodsMap.
-func FindDuplicatePods(pods []*v1.Pod) DuplicatePodsMap {
-	dpm := DuplicatePodsMap{}
-	for _, pod := range pods {
-		sr, err := podutil.CreatorRef(pod)
-		if err != nil || sr == nil {
-			continue
-		}
-		if podutil.IsMirrorPod(pod) || podutil.IsDaemonsetPod(sr) || podutil.IsPodWithLocalStorage(pod) || podutil.IsCriticalPod(pod) {
-			continue
-		}
-		s := strings.Join([]string{sr.Reference.Kind, sr.Reference.Namespace, sr.Reference.Name}, "/")
-		dpm[s] = append(dpm[s], pod)
+func hasExcludedOwnerRefKind(ownerRefs []metav1.OwnerReference, strategy api.DeschedulerStrategy) bool {
+	if strategy.Params.RemoveDuplicates == nil {
+		return false
 	}
-	return dpm
+	exclude := sets.NewString(strategy.Params.RemoveDuplicates.ExcludeOwnerKinds...)
+	for _, owner := range ownerRefs {
+		if exclude.Has(owner.Kind) {
+			return true
+		}
+	}
+	return false
 }

pkg/descheduler/strategies/duplicates_test.go

@@ -17,63 +17,195 @@ limitations under the License.
 package strategies
 
 import (
+	"context"
 	"testing"
 
-	"github.com/kubernetes-incubator/descheduler/test"
+	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/kubernetes/fake"
 	core "k8s.io/client-go/testing"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/test"
 )
 
-//TODO:@ravisantoshgudimetla This could be made table driven.
 func TestFindDuplicatePods(t *testing.T) {
-	node := test.BuildTestNode("n1", 2000, 3000, 10)
-	p1 := test.BuildTestPod("p1", 100, 0, node.Name)
-	p2 := test.BuildTestPod("p2", 100, 0, node.Name)
-	p3 := test.BuildTestPod("p3", 100, 0, node.Name)
-	p4 := test.BuildTestPod("p4", 100, 0, node.Name)
-	p5 := test.BuildTestPod("p5", 100, 0, node.Name)
-	p6 := test.BuildTestPod("p6", 100, 0, node.Name)
-	p7 := test.BuildTestPod("p7", 100, 0, node.Name)
+	ctx := context.Background()
+	// first setup pods
+	node := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	p1 := test.BuildTestPod("p1", 100, 0, node.Name, nil)
+	p1.Namespace = "dev"
+	p2 := test.BuildTestPod("p2", 100, 0, node.Name, nil)
+	p2.Namespace = "dev"
+	p3 := test.BuildTestPod("p3", 100, 0, node.Name, nil)
+	p3.Namespace = "dev"
+	p4 := test.BuildTestPod("p4", 100, 0, node.Name, nil)
+	p5 := test.BuildTestPod("p5", 100, 0, node.Name, nil)
+	p6 := test.BuildTestPod("p6", 100, 0, node.Name, nil)
+	p7 := test.BuildTestPod("p7", 100, 0, node.Name, nil)
+	p7.Namespace = "kube-system"
+	p8 := test.BuildTestPod("p8", 100, 0, node.Name, nil)
+	p8.Namespace = "test"
+	p9 := test.BuildTestPod("p9", 100, 0, node.Name, nil)
+	p9.Namespace = "test"
+	p10 := test.BuildTestPod("p10", 100, 0, node.Name, nil)
+	p10.Namespace = "test"
+	p11 := test.BuildTestPod("p11", 100, 0, node.Name, nil)
+	p11.Namespace = "different-images"
+	p12 := test.BuildTestPod("p12", 100, 0, node.Name, nil)
+	p12.Namespace = "different-images"
+	p13 := test.BuildTestPod("p13", 100, 0, node.Name, nil)
+	p13.Namespace = "different-images"
+	p14 := test.BuildTestPod("p14", 100, 0, node.Name, nil)
+	p14.Namespace = "different-images"
 
-	// All the following pods expect for one will be evicted.
-	p1.Annotations = test.GetReplicaSetAnnotation()
-	p2.Annotations = test.GetReplicaSetAnnotation()
-	p3.Annotations = test.GetReplicaSetAnnotation()
+	// ### Evictable Pods ###
 
-	// The following 4 pods won't get evicted.
-	// A daemonset.
-	p4.Annotations = test.GetDaemonSetAnnotation()
-	// A pod with local storage.
-	p5.Annotations = test.GetNormalPodAnnotation()
+	// Three Pods in the "default" Namespace, bound to same ReplicaSet. 2 should be evicted.
+	ownerRef1 := test.GetReplicaSetOwnerRefList()
+	p1.ObjectMeta.OwnerReferences = ownerRef1
+	p2.ObjectMeta.OwnerReferences = ownerRef1
+	p3.ObjectMeta.OwnerReferences = ownerRef1
+
+	// Three Pods in the "test" Namespace, bound to same ReplicaSet. 2 should be evicted.
+	ownerRef2 := test.GetReplicaSetOwnerRefList()
+	p8.ObjectMeta.OwnerReferences = ownerRef2
+	p9.ObjectMeta.OwnerReferences = ownerRef2
+	p10.ObjectMeta.OwnerReferences = ownerRef2
+
+	// ### Non-evictable Pods ###
+
+	// A DaemonSet.
+	p4.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList()
+
+	// A Pod with local storage.
+	p5.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
 	p5.Spec.Volumes = []v1.Volume{
 		{
 			Name: "sample",
 			VolumeSource: v1.VolumeSource{
 				HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
 				EmptyDir: &v1.EmptyDirVolumeSource{
-					SizeLimit: *resource.NewQuantity(int64(10), resource.BinarySI)},
+					SizeLimit: resource.NewQuantity(int64(10), resource.BinarySI)},
 			},
 		},
 	}
+
 	// A Mirror Pod.
 	p6.Annotations = test.GetMirrorPodAnnotation()
+
 	// A Critical Pod.
-	p7.Namespace = "kube-system"
-	p7.Annotations = test.GetCriticalPodAnnotation()
-	expectedEvictedPodCount := 2
-	fakeClient := &fake.Clientset{}
-	fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
-		return true, &v1.PodList{Items: []v1.Pod{*p1, *p2, *p3, *p4, *p5, *p6, *p7}}, nil
+	priority := utils.SystemCriticalPriority
+	p7.Spec.Priority = &priority
+
+	// Same owners, but different images
+	p11.Spec.Containers[0].Image = "foo"
+	p11.ObjectMeta.OwnerReferences = ownerRef1
+	p12.Spec.Containers[0].Image = "bar"
+	p12.ObjectMeta.OwnerReferences = ownerRef1
+
+	// Multiple containers
+	p13.ObjectMeta.OwnerReferences = ownerRef1
+	p13.Spec.Containers = append(p13.Spec.Containers, v1.Container{
+		Name:  "foo",
+		Image: "foo",
 	})
-	fakeClient.Fake.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
-		return true, node, nil
-	})
-	podsEvicted := deleteDuplicatePods(fakeClient, "v1", []*v1.Node{node}, false)
-	if podsEvicted != expectedEvictedPodCount {
-		t.Errorf("Unexpected no of pods evicted")
+
+	testCases := []struct {
+		description             string
+		maxPodsToEvict          int
+		pods                    []v1.Pod
+		expectedEvictedPodCount int
+		strategy                api.DeschedulerStrategy
+	}{
+		{
+			description:             "Three pods in the `dev` Namespace, bound to same ReplicaSet. 2 should be evicted.",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p1, *p2, *p3},
+			expectedEvictedPodCount: 2,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Three pods in the `dev` Namespace, bound to same ReplicaSet, but ReplicaSet kind is excluded. 0 should be evicted.",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p1, *p2, *p3},
+			expectedEvictedPodCount: 0,
+			strategy:                api.DeschedulerStrategy{Params: api.StrategyParameters{RemoveDuplicates: &api.RemoveDuplicates{ExcludeOwnerKinds: []string{"ReplicaSet"}}}},
+		},
+		{
+			description:             "Three Pods in the `test` Namespace, bound to same ReplicaSet. 2 should be evicted.",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p8, *p9, *p10},
+			expectedEvictedPodCount: 2,
+			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.",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p1, *p2, *p3, *p8, *p9, *p10},
+			expectedEvictedPodCount: 4,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Pods are: part of DaemonSet, with local storage, mirror pod annotation, critical pod annotation - none should be evicted.",
+			maxPodsToEvict:          2,
+			pods:                    []v1.Pod{*p4, *p5, *p6, *p7},
+			expectedEvictedPodCount: 0,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Test all Pods: 4 should be evicted.",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p1, *p2, *p3, *p4, *p5, *p6, *p7, *p8, *p9, *p10},
+			expectedEvictedPodCount: 4,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Pods with the same owner but different images should not be evicted",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p11, *p12},
+			expectedEvictedPodCount: 0,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Pods with multiple containers should not match themselves",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p13},
+			expectedEvictedPodCount: 0,
+			strategy:                api.DeschedulerStrategy{},
+		},
+		{
+			description:             "Pods with matching ownerrefs and at not all matching image should not trigger an eviction",
+			maxPodsToEvict:          5,
+			pods:                    []v1.Pod{*p11, *p13},
+			expectedEvictedPodCount: 0,
+			strategy:                api.DeschedulerStrategy{},
+		},
+	}
+
+	for _, testCase := range testCases {
+		fakeClient := &fake.Clientset{}
+		fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
+			return true, &v1.PodList{Items: testCase.pods}, nil
+		})
+		fakeClient.Fake.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
+			return true, node, nil
+		})
+		podEvictor := evictions.NewPodEvictor(
+			fakeClient,
+			"v1",
+			false,
+			testCase.maxPodsToEvict,
+			[]*v1.Node{node},
+		)
+
+		RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, []*v1.Node{node}, false, podEvictor)
+		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)
+		}
 	}
 
 }

pkg/descheduler/strategies/lownodeutilization.go

@@ -17,36 +17,39 @@ limitations under the License.
 package strategies
 
 import (
-	"fmt"
+	"context"
 	"sort"
 
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
-	"k8s.io/kubernetes/pkg/api/v1"
-	helper "k8s.io/kubernetes/pkg/api/v1/resource"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/klog"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app/options"
-	"github.com/kubernetes-incubator/descheduler/pkg/api"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler/evictions"
-	podutil "github.com/kubernetes-incubator/descheduler/pkg/descheduler/pod"
+	"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"
 )
 
 type NodeUsageMap struct {
-	node             *v1.Node
-	usage            api.ResourceThresholds
-	nonRemovablePods []*v1.Pod
-	bePods           []*v1.Pod
-	bPods            []*v1.Pod
-	gPods            []*v1.Pod
+	node    *v1.Node
+	usage   api.ResourceThresholds
+	allPods []*v1.Pod
 }
+
 type NodePodsMap map[*v1.Node][]*v1.Pod
 
-func LowNodeUtilization(ds *options.DeschedulerServer, strategy api.DeschedulerStrategy, evictionPolicyGroupVersion string, nodes []*v1.Node) {
+func LowNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, evictLocalStoragePods bool, podEvictor *evictions.PodEvictor) {
 	if !strategy.Enabled {
 		return
 	}
 	// todo: move to config validation?
 	// 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 strategy.Params.NodeResourceUtilizationThresholds == nil {
+		klog.V(1).Infof("NodeResourceUtilizationThresholds not set")
+		return
+	}
 
 	thresholds := strategy.Params.NodeResourceUtilizationThresholds.Thresholds
 	if !validateThresholds(thresholds) {
@@ -57,82 +60,124 @@ func LowNodeUtilization(ds *options.DeschedulerServer, strategy api.DeschedulerS
 		return
 	}
 
-	npm := CreateNodePodsMap(ds.Client, nodes)
-	lowNodes, targetNodes, _ := classifyNodes(npm, thresholds, targetThresholds)
+	npm := createNodePodsMap(ctx, client, nodes)
+	lowNodes, targetNodes := classifyNodes(npm, thresholds, targetThresholds, evictLocalStoragePods)
+
+	klog.V(1).Infof("Criteria for a node under utilization: CPU: %v, Mem: %v, Pods: %v",
+		thresholds[v1.ResourceCPU], thresholds[v1.ResourceMemory], thresholds[v1.ResourcePods])
 
 	if len(lowNodes) == 0 {
-		fmt.Printf("No node is underutilized\n")
-		return
-	} else if len(lowNodes) < strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes {
-		fmt.Printf("number of nodes underutilized is less than NumberOfNodes\n")
-		return
-	} else if len(lowNodes) == len(nodes) {
-		fmt.Printf("all nodes are underutilized\n")
-		return
-	} else if len(targetNodes) == 0 {
-		fmt.Printf("no node is above target utilization\n")
+		klog.V(1).Infof("No node is underutilized, nothing to do here, you might tune your thresholds further")
 		return
 	}
-	evictPodsFromTargetNodes(ds.Client, evictionPolicyGroupVersion, targetNodes, lowNodes, targetThresholds, ds.DryRun)
+	klog.V(1).Infof("Total number of underutilized nodes: %v", len(lowNodes))
+
+	if len(lowNodes) < strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes {
+		klog.V(1).Infof("number of nodes underutilized (%v) is less than NumberOfNodes (%v), nothing to do here", len(lowNodes), strategy.Params.NodeResourceUtilizationThresholds.NumberOfNodes)
+		return
+	}
+
+	if len(lowNodes) == len(nodes) {
+		klog.V(1).Infof("all nodes are underutilized, nothing to do here")
+		return
+	}
+
+	if len(targetNodes) == 0 {
+		klog.V(1).Infof("all nodes are under target utilization, nothing to do here")
+		return
+	}
+
+	klog.V(1).Infof("Criteria for a node above target utilization: CPU: %v, Mem: %v, Pods: %v",
+		targetThresholds[v1.ResourceCPU], targetThresholds[v1.ResourceMemory], targetThresholds[v1.ResourcePods])
+	klog.V(1).Infof("Total number of nodes above target utilization: %v", len(targetNodes))
+
+	evictPodsFromTargetNodes(
+		ctx,
+		targetNodes,
+		lowNodes,
+		targetThresholds,
+		evictLocalStoragePods,
+		podEvictor)
+
+	klog.V(1).Infof("Total number of pods evicted: %v", podEvictor.TotalEvicted())
 }
 
 func validateThresholds(thresholds api.ResourceThresholds) bool {
-	if thresholds == nil {
-		fmt.Printf("no resource threshold is configured\n")
+	if thresholds == nil || len(thresholds) == 0 {
+		klog.V(1).Infof("no resource threshold is configured")
 		return false
 	}
-	found := false
-	for name, _ := range thresholds {
-		if name == v1.ResourceCPU || name == v1.ResourceMemory || name == v1.ResourcePods {
-			found = true
-			break
+	for name := range thresholds {
+		switch name {
+		case v1.ResourceCPU:
+			continue
+		case v1.ResourceMemory:
+			continue
+		case v1.ResourcePods:
+			continue
+		default:
+			klog.Errorf("only cpu, memory, or pods thresholds can be specified")
+			return false
 		}
 	}
-	if !found {
-		fmt.Printf("one of cpu, memory, or pods resource threshold must be configured\n")
-		return false
-	}
-	return found
+	return true
 }
 
 //This function could be merged into above once we are clear.
 func validateTargetThresholds(targetThresholds api.ResourceThresholds) bool {
 	if targetThresholds == nil {
-		fmt.Printf("no target resource threshold is configured\n")
+		klog.V(1).Infof("no target resource threshold is configured")
 		return false
 	} else if _, ok := targetThresholds[v1.ResourcePods]; !ok {
-		fmt.Printf("no target resource threshold for pods is configured\n")
+		klog.V(1).Infof("no target resource threshold for pods is configured")
 		return false
 	}
 	return true
 }
 
-func classifyNodes(npm NodePodsMap, thresholds api.ResourceThresholds, targetThresholds api.ResourceThresholds) ([]NodeUsageMap, []NodeUsageMap, []NodeUsageMap) {
-	lowNodes, targetNodes, otherNodes := []NodeUsageMap{}, []NodeUsageMap{}, []NodeUsageMap{}
+// classifyNodes classifies the nodes into low-utilization or high-utilization nodes. If a node lies between
+// low and high thresholds, it is simply ignored.
+func classifyNodes(npm NodePodsMap, thresholds api.ResourceThresholds, targetThresholds api.ResourceThresholds, evictLocalStoragePods bool) ([]NodeUsageMap, []NodeUsageMap) {
+	lowNodes, targetNodes := []NodeUsageMap{}, []NodeUsageMap{}
 	for node, pods := range npm {
-		usage, nonRemovablePods, bePods, bPods, gPods := NodeUtilization(node, pods)
-		nuMap := NodeUsageMap{node, usage, nonRemovablePods, bePods, bPods, gPods}
-		fmt.Printf("Node %#v usage: %#v\n", node.Name, usage)
-		if IsNodeWithLowUtilization(usage, thresholds) {
+		usage := nodeUtilization(node, pods, evictLocalStoragePods)
+		nuMap := NodeUsageMap{
+			node:    node,
+			usage:   usage,
+			allPods: pods,
+		}
+		// Check if node is underutilized and if we can schedule pods on it.
+		if !nodeutil.IsNodeUnschedulable(node) && IsNodeWithLowUtilization(usage, thresholds) {
+			klog.V(2).Infof("Node %#v is under utilized with usage: %#v", node.Name, usage)
 			lowNodes = append(lowNodes, nuMap)
 		} else if IsNodeAboveTargetUtilization(usage, targetThresholds) {
+			klog.V(2).Infof("Node %#v is over utilized with usage: %#v", node.Name, usage)
 			targetNodes = append(targetNodes, nuMap)
 		} else {
-			// Seems we don't need to collect them?
-			otherNodes = append(otherNodes, nuMap)
+			klog.V(2).Infof("Node %#v is appropriately utilized with usage: %#v", node.Name, usage)
 		}
 	}
-	return lowNodes, targetNodes, otherNodes
+	return lowNodes, targetNodes
 }
 
-func evictPodsFromTargetNodes(client clientset.Interface, evictionPolicyGroupVersion string, targetNodes, lowNodes []NodeUsageMap, targetThresholds api.ResourceThresholds, dryRun bool) int {
-	podsEvicted := 0
+// evictPodsFromTargetNodes evicts pods based on priority, if all the pods on the node have priority, if not
+// evicts them based on QoS as fallback option.
+// TODO: @ravig Break this function into smaller functions.
+func evictPodsFromTargetNodes(
+	ctx context.Context,
+	targetNodes, lowNodes []NodeUsageMap,
+	targetThresholds api.ResourceThresholds,
+	evictLocalStoragePods bool,
+	podEvictor *evictions.PodEvictor,
+) {
 
 	SortNodesByUsage(targetNodes)
 
 	// upper bound on total number of pods/cpu/memory to be moved
-	var totalPods, totalCpu, totalMem float64
+	var totalPods, totalCPU, totalMem float64
+	var taintsOfLowNodes = make(map[string][]v1.Taint, len(lowNodes))
 	for _, node := range lowNodes {
+		taintsOfLowNodes[node.node.Name] = node.node.Spec.Taints
 		nodeCapacity := node.node.Status.Capacity
 		if len(node.node.Status.Allocatable) > 0 {
 			nodeCapacity = node.node.Status.Allocatable
@@ -144,7 +189,7 @@ func evictPodsFromTargetNodes(client clientset.Interface, evictionPolicyGroupVer
 		// totalCPU capacity to be moved
 		if _, ok := targetThresholds[v1.ResourceCPU]; ok {
 			cpuPercentage := targetThresholds[v1.ResourceCPU] - node.usage[v1.ResourceCPU]
-			totalCpu += ((float64(cpuPercentage) * float64(nodeCapacity.Cpu().MilliValue())) / 100)
+			totalCPU += ((float64(cpuPercentage) * float64(nodeCapacity.Cpu().MilliValue())) / 100)
 		}
 
 		// totalMem capacity to be moved
@@ -154,59 +199,90 @@ func evictPodsFromTargetNodes(client clientset.Interface, evictionPolicyGroupVer
 		}
 	}
 
+	klog.V(1).Infof("Total capacity to be moved: CPU:%v, Mem:%v, Pods:%v", totalCPU, totalMem, totalPods)
+	klog.V(1).Infof("********Number of pods evicted from each node:***********")
+
 	for _, node := range targetNodes {
 		nodeCapacity := node.node.Status.Capacity
 		if len(node.node.Status.Allocatable) > 0 {
 			nodeCapacity = node.node.Status.Allocatable
 		}
-		fmt.Printf("evicting pods from node %#v with usage: %#v\n", node.node.Name, node.usage)
-		// evict best effort pods
-		evictPods(node.bePods, client, evictionPolicyGroupVersion, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCpu, &totalMem, &podsEvicted, dryRun)
-		// evict burstable pods
-		evictPods(node.bPods, client, evictionPolicyGroupVersion, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCpu, &totalMem, &podsEvicted, dryRun)
-		// evict guaranteed pods
-		evictPods(node.gPods, client, evictionPolicyGroupVersion, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCpu, &totalMem, &podsEvicted, dryRun)
+		klog.V(3).Infof("evicting pods from node %#v with usage: %#v", node.node.Name, node.usage)
+
+		nonRemovablePods, bestEffortPods, burstablePods, guaranteedPods := classifyPods(node.allPods, evictLocalStoragePods)
+		klog.V(2).Infof("allPods:%v, nonRemovablePods:%v, bestEffortPods:%v, burstablePods:%v, guaranteedPods:%v", len(node.allPods), len(nonRemovablePods), len(bestEffortPods), len(burstablePods), len(guaranteedPods))
+
+		// Check if one pod has priority, if yes, assume that all pods have priority and evict pods based on priority.
+		if node.allPods[0].Spec.Priority != nil {
+			klog.V(1).Infof("All pods have priority associated with them. Evicting pods based on priority")
+			evictablePods := make([]*v1.Pod, 0)
+			evictablePods = append(append(burstablePods, bestEffortPods...), guaranteedPods...)
+
+			// 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.
+			sortPodsBasedOnPriority(evictablePods)
+			evictPods(ctx, evictablePods, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCPU, &totalMem, taintsOfLowNodes, podEvictor, node.node)
+		} else {
+			// TODO: Remove this when we support only priority.
+			//  Falling back to evicting pods based on priority.
+			klog.V(1).Infof("Evicting pods based on QoS")
+			klog.V(1).Infof("There are %v non-evictable pods on the node", len(nonRemovablePods))
+			// evict best effort pods
+			evictPods(ctx, bestEffortPods, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCPU, &totalMem, taintsOfLowNodes, podEvictor, node.node)
+			// evict burstable pods
+			evictPods(ctx, burstablePods, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCPU, &totalMem, taintsOfLowNodes, podEvictor, node.node)
+			// evict guaranteed pods
+			evictPods(ctx, guaranteedPods, targetThresholds, nodeCapacity, node.usage, &totalPods, &totalCPU, &totalMem, taintsOfLowNodes, podEvictor, node.node)
+		}
+		klog.V(1).Infof("%v pods evicted from node %#v with usage %v", podEvictor.NodeEvicted(node.node), node.node.Name, node.usage)
 	}
-	return podsEvicted
 }
 
-func evictPods(inputPods []*v1.Pod,
-	client clientset.Interface,
-	evictionPolicyGroupVersion string,
+func evictPods(
+	ctx context.Context,
+	inputPods []*v1.Pod,
 	targetThresholds api.ResourceThresholds,
 	nodeCapacity v1.ResourceList,
 	nodeUsage api.ResourceThresholds,
 	totalPods *float64,
-	totalCpu *float64,
+	totalCPU *float64,
 	totalMem *float64,
-	podsEvicted *int,
-	dryRun bool) {
-	if IsNodeAboveTargetUtilization(nodeUsage, targetThresholds) && (*totalPods > 0 || *totalCpu > 0 || *totalMem > 0) {
+	taintsOfLowNodes map[string][]v1.Taint,
+	podEvictor *evictions.PodEvictor,
+	node *v1.Node) {
+	if IsNodeAboveTargetUtilization(nodeUsage, targetThresholds) && (*totalPods > 0 || *totalCPU > 0 || *totalMem > 0) {
 		onePodPercentage := api.Percentage((float64(1) * 100) / float64(nodeCapacity.Pods().Value()))
 		for _, pod := range inputPods {
-			cUsage := helper.GetResourceRequest(pod, v1.ResourceCPU)
-			mUsage := helper.GetResourceRequest(pod, v1.ResourceMemory)
-			success, err := evictions.EvictPod(client, pod, evictionPolicyGroupVersion, dryRun)
-			if !success {
-				fmt.Printf("Error when evicting pod: %#v (%#v)\n", pod.Name, err)
-			} else {
-				fmt.Printf("Evicted pod: %#v (%#v)\n", pod.Name, err)
+			if !utils.PodToleratesTaints(pod, taintsOfLowNodes) {
+				klog.V(3).Infof("Skipping eviction for Pod: %#v, doesn't tolerate node taint", pod.Name)
+				continue
+			}
+
+			cUsage := utils.GetResourceRequest(pod, v1.ResourceCPU)
+			mUsage := utils.GetResourceRequest(pod, v1.ResourceMemory)
+
+			success, err := podEvictor.EvictPod(ctx, pod, node)
+			if err != nil {
+				klog.Errorf("Error evicting pod: (%#v)", err)
+				break
+			}
+
+			if success {
+				klog.V(3).Infof("Evicted pod: %#v", pod.Name)
 				// update remaining pods
-				*podsEvicted++
 				nodeUsage[v1.ResourcePods] -= onePodPercentage
 				*totalPods--
 
 				// update remaining cpu
-				*totalCpu -= float64(cUsage)
+				*totalCPU -= float64(cUsage)
 				nodeUsage[v1.ResourceCPU] -= api.Percentage((float64(cUsage) * 100) / float64(nodeCapacity.Cpu().MilliValue()))
 
 				// update remaining memory
 				*totalMem -= float64(mUsage)
 				nodeUsage[v1.ResourceMemory] -= api.Percentage(float64(mUsage) / float64(nodeCapacity.Memory().Value()) * 100)
 
-				fmt.Printf("updated node usage: %#v\n", nodeUsage)
+				klog.V(3).Infof("updated node usage: %#v", nodeUsage)
 				// check if node utilization drops below target threshold or required capacity (cpu, memory, pods) is moved
-				if !IsNodeAboveTargetUtilization(nodeUsage, targetThresholds) || (*totalPods <= 0 && *totalCpu <= 0 && *totalMem <= 0) {
+				if !IsNodeAboveTargetUtilization(nodeUsage, targetThresholds) || (*totalPods <= 0 && *totalCPU <= 0 && *totalMem <= 0) {
 					break
 				}
 			}
@@ -232,12 +308,35 @@ func SortNodesByUsage(nodes []NodeUsageMap) {
 	})
 }
 
-func CreateNodePodsMap(client clientset.Interface, nodes []*v1.Node) NodePodsMap {
+// sortPodsBasedOnPriority sorts pods based on priority and if their priorities are equal, they are sorted based on QoS tiers.
+func sortPodsBasedOnPriority(evictablePods []*v1.Pod) {
+	sort.Slice(evictablePods, func(i, j int) bool {
+		if evictablePods[i].Spec.Priority == nil && evictablePods[j].Spec.Priority != nil {
+			return true
+		}
+		if evictablePods[j].Spec.Priority == nil && evictablePods[i].Spec.Priority != nil {
+			return false
+		}
+		if (evictablePods[j].Spec.Priority == nil && evictablePods[i].Spec.Priority == nil) || (*evictablePods[i].Spec.Priority == *evictablePods[j].Spec.Priority) {
+			if podutil.IsBestEffortPod(evictablePods[i]) {
+				return true
+			}
+			if podutil.IsBurstablePod(evictablePods[i]) && podutil.IsGuaranteedPod(evictablePods[j]) {
+				return true
+			}
+			return false
+		}
+		return *evictablePods[i].Spec.Priority < *evictablePods[j].Spec.Priority
+	})
+}
+
+// createNodePodsMap returns nodepodsmap with evictable pods on node.
+func createNodePodsMap(ctx context.Context, client clientset.Interface, nodes []*v1.Node) NodePodsMap {
 	npm := NodePodsMap{}
 	for _, node := range nodes {
-		pods, err := podutil.ListPodsOnANode(client, node)
+		pods, err := podutil.ListPodsOnANode(ctx, client, node)
 		if err != nil {
-			fmt.Printf("node %s will not be processed, error in accessing its pods (%#v)\n", node.Name, err)
+			klog.Warningf("node %s will not be processed, error in accessing its pods (%#v)", node.Name, err)
 		} else {
 			npm[node] = pods
 		}
@@ -271,45 +370,18 @@ func IsNodeWithLowUtilization(nodeThresholds api.ResourceThresholds, thresholds
 	return true
 }
 
-func NodeUtilization(node *v1.Node, pods []*v1.Pod) (api.ResourceThresholds, []*v1.Pod, []*v1.Pod, []*v1.Pod, []*v1.Pod) {
-	bePods := []*v1.Pod{}
-	nonRemovablePods := []*v1.Pod{}
-	bPods := []*v1.Pod{}
-	gPods := []*v1.Pod{}
-	totalReqs := map[v1.ResourceName]resource.Quantity{}
+func nodeUtilization(node *v1.Node, pods []*v1.Pod, evictLocalStoragePods bool) api.ResourceThresholds {
+	totalReqs := map[v1.ResourceName]*resource.Quantity{
+		v1.ResourceCPU:    {},
+		v1.ResourceMemory: {},
+	}
 	for _, pod := range pods {
-		sr, err := podutil.CreatorRef(pod)
-		if err != nil {
-			sr = nil
-		}
-
-		if podutil.IsMirrorPod(pod) || podutil.IsPodWithLocalStorage(pod) || sr == nil || podutil.IsDaemonsetPod(sr) || podutil.IsCriticalPod(pod) {
-			nonRemovablePods = append(nonRemovablePods, pod)
-			if podutil.IsBestEffortPod(pod) {
-				continue
-			}
-		} else if podutil.IsBestEffortPod(pod) {
-			bePods = append(bePods, pod)
-			continue
-		} else if podutil.IsBurstablePod(pod) {
-			bPods = append(bPods, pod)
-		} else {
-			gPods = append(gPods, pod)
-		}
-
-		req, _, err := helper.PodRequestsAndLimits(pod)
-		if err != nil {
-			fmt.Printf("Error computing resource usage of pod, ignoring: %#v\n", pod.Name)
-			continue
-		}
+		req, _ := utils.PodRequestsAndLimits(pod)
 		for name, quantity := range req {
 			if name == v1.ResourceCPU || name == v1.ResourceMemory {
-				if value, ok := totalReqs[name]; !ok {
-					totalReqs[name] = *quantity.Copy()
-				} else {
-					value.Add(quantity)
-					totalReqs[name] = value
-				}
+				// 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)
 			}
 		}
 	}
@@ -319,12 +391,42 @@ func NodeUtilization(node *v1.Node, pods []*v1.Pod) (api.ResourceThresholds, []*
 		nodeCapacity = node.Status.Allocatable
 	}
 
-	usage := api.ResourceThresholds{}
-	totalCPUReq := totalReqs[v1.ResourceCPU]
-	totalMemReq := totalReqs[v1.ResourceMemory]
 	totalPods := len(pods)
-	usage[v1.ResourceCPU] = api.Percentage((float64(totalCPUReq.MilliValue()) * 100) / float64(nodeCapacity.Cpu().MilliValue()))
-	usage[v1.ResourceMemory] = api.Percentage(float64(totalMemReq.Value()) / float64(nodeCapacity.Memory().Value()) * 100)
-	usage[v1.ResourcePods] = api.Percentage((float64(totalPods) * 100) / float64(nodeCapacity.Pods().Value()))
-	return usage, nonRemovablePods, bePods, bPods, gPods
+	return api.ResourceThresholds{
+		v1.ResourceCPU:    api.Percentage((float64(totalReqs[v1.ResourceCPU].MilliValue()) * 100) / float64(nodeCapacity.Cpu().MilliValue())),
+		v1.ResourceMemory: api.Percentage(float64(totalReqs[v1.ResourceMemory].Value()) / float64(nodeCapacity.Memory().Value()) * 100),
+		v1.ResourcePods:   api.Percentage((float64(totalPods) * 100) / float64(nodeCapacity.Pods().Value())),
+	}
+}
+
+func classifyPods(pods []*v1.Pod, evictLocalStoragePods bool) ([]*v1.Pod, []*v1.Pod, []*v1.Pod, []*v1.Pod) {
+	var nonRemovablePods, bestEffortPods, burstablePods, guaranteedPods []*v1.Pod
+
+	// From https://kubernetes.io/docs/tasks/configure-pod-container/quality-service-pod/
+	//
+	// For a Pod to be given a QoS class of Guaranteed:
+	// - every Container in the Pod must have a memory limit and a memory request, and they must be the same.
+	// - every Container in the Pod must have a CPU limit and a CPU request, and they must be the same.
+	// A Pod is given a QoS class of Burstable if:
+	// - the Pod does not meet the criteria for QoS class Guaranteed.
+	// - at least one Container in the Pod has a memory or CPU request.
+	// For a Pod to be given a QoS class of BestEffort, the Containers in the Pod must not have any memory or CPU limits or requests.
+
+	for _, pod := range pods {
+		if !podutil.IsEvictable(pod, evictLocalStoragePods) {
+			nonRemovablePods = append(nonRemovablePods, pod)
+			continue
+		}
+
+		switch utils.GetPodQOS(pod) {
+		case v1.PodQOSGuaranteed:
+			guaranteedPods = append(guaranteedPods, pod)
+		case v1.PodQOSBurstable:
+			burstablePods = append(burstablePods, pod)
+		default: // alias v1.PodQOSBestEffort
+			bestEffortPods = append(bestEffortPods, pod)
+		}
+	}
+
+	return nonRemovablePods, bestEffortPods, burstablePods, guaranteedPods
 }

pkg/descheduler/strategies/lownodeutilization_test.go

@@ -17,95 +17,626 @@ limitations under the License.
 package strategies
 
 import (
+	"context"
 	"fmt"
-	"github.com/kubernetes-incubator/descheduler/pkg/api"
-	"github.com/kubernetes-incubator/descheduler/test"
-	"k8s.io/apimachinery/pkg/api/resource"
-	"k8s.io/apimachinery/pkg/runtime"
-	core "k8s.io/client-go/testing"
-	"k8s.io/kubernetes/pkg/api/v1"
-	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
 	"strings"
 	"testing"
+
+	"reflect"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/api/policy/v1beta1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	serializer "k8s.io/apimachinery/pkg/runtime/serializer"
+	"k8s.io/apimachinery/pkg/watch"
+	"k8s.io/client-go/kubernetes/fake"
+	core "k8s.io/client-go/testing"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	"sigs.k8s.io/descheduler/pkg/utils"
+	"sigs.k8s.io/descheduler/test"
 )
 
-// TODO: Make this table driven.
+var (
+	lowPriority  = int32(0)
+	highPriority = int32(10000)
+)
+
+func setRSOwnerRef(pod *v1.Pod)          { pod.ObjectMeta.OwnerReferences = test.GetReplicaSetOwnerRefList() }
+func setDSOwnerRef(pod *v1.Pod)          { pod.ObjectMeta.OwnerReferences = test.GetDaemonSetOwnerRefList() }
+func setNormalOwnerRef(pod *v1.Pod)      { pod.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList() }
+func setHighPriority(pod *v1.Pod)        { pod.Spec.Priority = &highPriority }
+func setLowPriority(pod *v1.Pod)         { pod.Spec.Priority = &lowPriority }
+func setNodeUnschedulable(node *v1.Node) { node.Spec.Unschedulable = true }
+
+func makeBestEffortPod(pod *v1.Pod) {
+	pod.Spec.Containers[0].Resources.Requests = nil
+	pod.Spec.Containers[0].Resources.Requests = nil
+	pod.Spec.Containers[0].Resources.Limits = nil
+	pod.Spec.Containers[0].Resources.Limits = nil
+}
+
+func makeBurstablePod(pod *v1.Pod) {
+	pod.Spec.Containers[0].Resources.Limits = nil
+	pod.Spec.Containers[0].Resources.Limits = nil
+}
+
+func makeGuaranteedPod(pod *v1.Pod) {
+	pod.Spec.Containers[0].Resources.Limits[v1.ResourceCPU] = pod.Spec.Containers[0].Resources.Requests[v1.ResourceCPU]
+	pod.Spec.Containers[0].Resources.Limits[v1.ResourceMemory] = pod.Spec.Containers[0].Resources.Requests[v1.ResourceMemory]
+}
+
 func TestLowNodeUtilization(t *testing.T) {
-	var thresholds = make(api.ResourceThresholds)
-	var targetThresholds = make(api.ResourceThresholds)
-	thresholds[v1.ResourceCPU] = 30
-	thresholds[v1.ResourcePods] = 30
-	targetThresholds[v1.ResourceCPU] = 50
-	targetThresholds[v1.ResourcePods] = 50
+	ctx := context.Background()
+	n1NodeName := "n1"
+	n2NodeName := "n2"
+	n3NodeName := "n3"
 
-	n1 := test.BuildTestNode("n1", 4000, 3000, 9)
-	n2 := test.BuildTestNode("n2", 4000, 3000, 10)
-	p1 := test.BuildTestPod("p1", 400, 0, n1.Name)
-	p2 := test.BuildTestPod("p2", 400, 0, n1.Name)
-	p3 := test.BuildTestPod("p3", 400, 0, n1.Name)
-	p4 := test.BuildTestPod("p4", 400, 0, n1.Name)
-	p5 := test.BuildTestPod("p5", 400, 0, n1.Name)
-
-	// These won't be evicted.
-	p6 := test.BuildTestPod("p6", 400, 0, n1.Name)
-	p7 := test.BuildTestPod("p7", 400, 0, n1.Name)
-	p8 := test.BuildTestPod("p8", 400, 0, n1.Name)
-
-	p1.Annotations = test.GetReplicaSetAnnotation()
-	p2.Annotations = test.GetReplicaSetAnnotation()
-	p3.Annotations = test.GetReplicaSetAnnotation()
-	p4.Annotations = test.GetReplicaSetAnnotation()
-	p5.Annotations = test.GetReplicaSetAnnotation()
-	// The following 4 pods won't get evicted.
-	// A daemonset.
-	p6.Annotations = test.GetDaemonSetAnnotation()
-	// A pod with local storage.
-	p7.Annotations = test.GetNormalPodAnnotation()
-	p7.Spec.Volumes = []v1.Volume{
+	testCases := []struct {
+		name                         string
+		thresholds, targetThresholds api.ResourceThresholds
+		nodes                        map[string]*v1.Node
+		pods                         map[string]*v1.PodList
+		expectedPodsEvicted          int
+		evictedPods                  []string
+	}{
 		{
-			Name: "sample",
-			VolumeSource: v1.VolumeSource{
-				HostPath: &v1.HostPathVolumeSource{Path: "somePath"},
-				EmptyDir: &v1.EmptyDirVolumeSource{
-					SizeLimit: *resource.NewQuantity(int64(10), resource.BinarySI)},
+			name: "without priorities",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  30,
+				v1.ResourcePods: 30,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  50,
+				v1.ResourcePods: 50,
+			},
+			nodes: map[string]*v1.Node{
+				n1NodeName: test.BuildTestNode(n1NodeName, 4000, 3000, 9, nil),
+				n2NodeName: test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+				n3NodeName: test.BuildTestNode(n3NodeName, 4000, 3000, 10, setNodeUnschedulable),
+			},
+			pods: map[string]*v1.PodList{
+				n1NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p1", 400, 0, n1NodeName, setRSOwnerRef),
+						*test.BuildTestPod("p2", 400, 0, n1NodeName, setRSOwnerRef),
+						*test.BuildTestPod("p3", 400, 0, n1NodeName, setRSOwnerRef),
+						*test.BuildTestPod("p4", 400, 0, n1NodeName, setRSOwnerRef),
+						*test.BuildTestPod("p5", 400, 0, n1NodeName, setRSOwnerRef),
+						// These won't be evicted.
+						*test.BuildTestPod("p6", 400, 0, n1NodeName, setDSOwnerRef),
+						*test.BuildTestPod("p7", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							// A pod with local storage.
+							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
+						}),
+					},
+				},
+				n2NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p9", 400, 0, n1NodeName, setRSOwnerRef),
+					},
+				},
+				n3NodeName: {},
+			},
+			expectedPodsEvicted: 3,
+		},
+		{
+			name: "with priorities",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  30,
+				v1.ResourcePods: 30,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  50,
+				v1.ResourcePods: 50,
+			},
+			nodes: map[string]*v1.Node{
+				n1NodeName: test.BuildTestNode(n1NodeName, 4000, 3000, 9, nil),
+				n2NodeName: test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+				n3NodeName: test.BuildTestNode(n3NodeName, 4000, 3000, 10, setNodeUnschedulable),
+			},
+			pods: map[string]*v1.PodList{
+				n1NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p1", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							setHighPriority(pod)
+						}),
+						*test.BuildTestPod("p2", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							setHighPriority(pod)
+						}),
+						*test.BuildTestPod("p3", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							setHighPriority(pod)
+						}),
+						*test.BuildTestPod("p4", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							setHighPriority(pod)
+						}),
+						*test.BuildTestPod("p5", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							setLowPriority(pod)
+						}),
+						// These won't be evicted.
+						*test.BuildTestPod("p6", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setDSOwnerRef(pod)
+							setHighPriority(pod)
+						}),
+						*test.BuildTestPod("p7", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							// A pod with local storage.
+							setNormalOwnerRef(pod)
+							setLowPriority(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
+						}),
+					},
+				},
+				n2NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p9", 400, 0, n1NodeName, setRSOwnerRef),
+					},
+				},
+				n3NodeName: {},
+			},
+			expectedPodsEvicted: 3,
+		},
+		{
+			name: "without priorities evicting best-effort pods only",
+			thresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  30,
+				v1.ResourcePods: 30,
+			},
+			targetThresholds: api.ResourceThresholds{
+				v1.ResourceCPU:  50,
+				v1.ResourcePods: 50,
+			},
+			nodes: map[string]*v1.Node{
+				n1NodeName: test.BuildTestNode(n1NodeName, 4000, 3000, 9, nil),
+				n2NodeName: test.BuildTestNode(n2NodeName, 4000, 3000, 10, nil),
+				n3NodeName: test.BuildTestNode(n3NodeName, 4000, 3000, 10, setNodeUnschedulable),
+			},
+			// All pods are assumed to be burstable (test.BuildTestNode always sets both cpu/memory resource requests to some value)
+			pods: map[string]*v1.PodList{
+				n1NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p1", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							makeBestEffortPod(pod)
+						}),
+						*test.BuildTestPod("p2", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							makeBestEffortPod(pod)
+						}),
+						*test.BuildTestPod("p3", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+						}),
+						*test.BuildTestPod("p4", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							makeBestEffortPod(pod)
+						}),
+						*test.BuildTestPod("p5", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setRSOwnerRef(pod)
+							makeBestEffortPod(pod)
+						}),
+						// These won't be evicted.
+						*test.BuildTestPod("p6", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							setDSOwnerRef(pod)
+						}),
+						*test.BuildTestPod("p7", 400, 0, n1NodeName, func(pod *v1.Pod) {
+							// A pod with local storage.
+							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
+						}),
+					},
+				},
+				n2NodeName: {
+					Items: []v1.Pod{
+						*test.BuildTestPod("p9", 400, 0, n1NodeName, setRSOwnerRef),
+					},
+				},
+				n3NodeName: {},
+			},
+			expectedPodsEvicted: 4,
+			evictedPods:         []string{"p1", "p2", "p4", "p5"},
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.name, func(t *testing.T) {
+			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{}{}
+			}
+
+			evictionFailed := false
+			if len(test.evictedPods) > 0 {
+				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 _, exists := podsForEviction[eviction.Name]; exists {
+							return true, obj, nil
+						}
+						evictionFailed = true
+						return true, nil, fmt.Errorf("pod %q was unexpectedly evicted", eviction.Name)
+					}
+					return true, obj, nil
+				})
+			}
+
+			var nodes []*v1.Node
+			for _, node := range test.nodes {
+				nodes = append(nodes, node)
+			}
+
+			npm := createNodePodsMap(ctx, fakeClient, nodes)
+			lowNodes, targetNodes := classifyNodes(npm, test.thresholds, test.targetThresholds, false)
+			if len(lowNodes) != 1 {
+				t.Errorf("After ignoring unschedulable nodes, expected only one node to be under utilized.")
+			}
+			podEvictor := evictions.NewPodEvictor(
+				fakeClient,
+				"v1",
+				false,
+				test.expectedPodsEvicted,
+				nodes,
+			)
+
+			evictPodsFromTargetNodes(ctx, targetNodes, lowNodes, test.targetThresholds, false, podEvictor)
+			podsEvicted := podEvictor.TotalEvicted()
+			if test.expectedPodsEvicted != podsEvicted {
+				t.Errorf("Expected %#v pods to be evicted but %#v got evicted", test.expectedPodsEvicted, podsEvicted)
+			}
+			if evictionFailed {
+				t.Errorf("Pod evictions failed unexpectedly")
+			}
+		})
+	}
+}
+
+func TestSortPodsByPriority(t *testing.T) {
+	n1 := test.BuildTestNode("n1", 4000, 3000, 9, nil)
+
+	p1 := test.BuildTestPod("p1", 400, 0, n1.Name, setLowPriority)
+
+	// BestEffort
+	p2 := test.BuildTestPod("p2", 400, 0, n1.Name, func(pod *v1.Pod) {
+		setHighPriority(pod)
+		makeBestEffortPod(pod)
+	})
+
+	// Burstable
+	p3 := test.BuildTestPod("p3", 400, 0, n1.Name, func(pod *v1.Pod) {
+		setHighPriority(pod)
+		makeBurstablePod(pod)
+	})
+
+	// Guaranteed
+	p4 := test.BuildTestPod("p4", 400, 100, n1.Name, func(pod *v1.Pod) {
+		setHighPriority(pod)
+		makeGuaranteedPod(pod)
+	})
+
+	// Best effort with nil priorities.
+	p5 := test.BuildTestPod("p5", 400, 100, n1.Name, makeBestEffortPod)
+	p5.Spec.Priority = nil
+
+	p6 := test.BuildTestPod("p6", 400, 100, n1.Name, makeGuaranteedPod)
+	p6.Spec.Priority = nil
+
+	podList := []*v1.Pod{p4, p3, p2, p1, p6, p5}
+
+	sortPodsBasedOnPriority(podList)
+	if !reflect.DeepEqual(podList[len(podList)-1], p4) {
+		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 TestValidateThresholds(t *testing.T) {
+	tests := []struct {
+		name    string
+		input   api.ResourceThresholds
+		succeed bool
+	}{
+		{
+			name:    "passing nil map for threshold",
+			input:   nil,
+			succeed: false,
+		},
+		{
+			name:    "passing no threshold",
+			input:   api.ResourceThresholds{},
+			succeed: false,
+		},
+		{
+			name: "passing unsupported resource name",
+			input: api.ResourceThresholds{
+				v1.ResourceCPU:     40,
+				v1.ResourceStorage: 25.5,
+			},
+			succeed: false,
+		},
+		{
+			name: "passing invalid resource name",
+			input: api.ResourceThresholds{
+				v1.ResourceCPU: 40,
+				"coolResource": 42.0,
+			},
+			succeed: false,
+		},
+		{
+			name: "passing a valid threshold with cpu, memory and pods",
+			input: api.ResourceThresholds{
+				v1.ResourceCPU:    20,
+				v1.ResourceMemory: 30,
+				v1.ResourcePods:   40,
+			},
+			succeed: true,
+		},
+	}
+
+	for _, test := range tests {
+		isValid := validateThresholds(test.input)
+
+		if isValid != test.succeed {
+			t.Errorf("expected validity of threshold: %#v\nto be %v but got %v instead", test.input, test.succeed, isValid)
+		}
+	}
+}
+
+func newFake(objects ...runtime.Object) *core.Fake {
+	scheme := runtime.NewScheme()
+	codecs := serializer.NewCodecFactory(scheme)
+	fake.AddToScheme(scheme)
+	o := core.NewObjectTracker(scheme, codecs.UniversalDecoder())
+	for _, obj := range objects {
+		if err := o.Add(obj); err != nil {
+			panic(err)
+		}
+	}
+
+	fakePtr := core.Fake{}
+	fakePtr.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
+		objs, err := o.List(
+			schema.GroupVersionResource{Group: "", Version: "v1", Resource: "pods"},
+			schema.GroupVersionKind{Group: "", Version: "v1", Kind: "Pod"},
+			action.GetNamespace(),
+		)
+		if err != nil {
+			return true, nil, err
+		}
+
+		obj := &v1.PodList{
+			Items: []v1.Pod{},
+		}
+		for _, pod := range objs.(*v1.PodList).Items {
+			podFieldSet := fields.Set(map[string]string{
+				"spec.nodeName": pod.Spec.NodeName,
+				"status.phase":  string(pod.Status.Phase),
+			})
+			match := action.(core.ListAction).GetListRestrictions().Fields.Matches(podFieldSet)
+			if !match {
+				continue
+			}
+			obj.Items = append(obj.Items, *pod.DeepCopy())
+		}
+		return true, obj, nil
+	})
+	fakePtr.AddReactor("*", "*", core.ObjectReaction(o))
+	fakePtr.AddWatchReactor("*", core.DefaultWatchReactor(watch.NewFake(), nil))
+
+	return &fakePtr
+}
+
+func TestWithTaints(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,
+				},
 			},
 		},
 	}
-	// A Mirror Pod.
-	p7.Annotations = test.GetMirrorPodAnnotation()
-	// A Critical Pod.
-	p8.Namespace = "kube-system"
-	p8.Annotations = test.GetCriticalPodAnnotation()
-	p9 := test.BuildTestPod("p9", 400, 0, n1.Name)
-	p9.Annotations = test.GetReplicaSetAnnotation()
-	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, "n1") {
-			return true, &v1.PodList{Items: []v1.Pod{*p1, *p2, *p3, *p4, *p5, *p6, *p7, *p8}}, nil
-		}
-		if strings.Contains(fieldString, "n2") {
-			return true, &v1.PodList{Items: []v1.Pod{*p9}}, 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)
-		switch getAction.GetName() {
-		case n1.Name:
-			return true, n1, nil
-		case n2.Name:
-			return true, n2, nil
-		}
-		return true, nil, fmt.Errorf("Wrong node: %v", getAction.GetName())
-	})
-	expectedPodsEvicted := 4
-	npm := CreateNodePodsMap(fakeClient, []*v1.Node{n1, n2})
-	lowNodes, targetNodes, _ := classifyNodes(npm, thresholds, targetThresholds)
-	podsEvicted := evictPodsFromTargetNodes(fakeClient, "v1", targetNodes, lowNodes, targetThresholds, false)
-	if expectedPodsEvicted != podsEvicted {
-		t.Errorf("Expected %#v pods to be evicted but %#v got evicted", expectedPodsEvicted)
+
+	n1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
+	n2 := test.BuildTestNode("n2", 1000, 3000, 10, nil)
+	n3 := test.BuildTestNode("n3", 1000, 3000, 10, nil)
+	n3withTaints := n3.DeepCopy()
+	n3withTaints.Spec.Taints = []v1.Taint{
+		{
+			Key:    "key",
+			Value:  "value",
+			Effect: v1.TaintEffectNoSchedule,
+		},
 	}
 
+	podThatToleratesTaint := test.BuildTestPod("tolerate_pod", 200, 0, n1.Name, setRSOwnerRef)
+	podThatToleratesTaint.Spec.Tolerations = []v1.Toleration{
+		{
+			Key:   "key",
+			Value: "value",
+		},
+	}
+
+	tests := []struct {
+		name              string
+		nodes             []*v1.Node
+		pods              []*v1.Pod
+		evictionsExpected int
+	}{
+		{
+			name:  "No taints",
+			nodes: []*v1.Node{n1, n2, n3},
+			pods: []*v1.Pod{
+				//Node 1 pods
+				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_4_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_5_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_6_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_7_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_8_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				// Node 2 pods
+				test.BuildTestPod(fmt.Sprintf("pod_9_%s", n2.Name), 200, 0, n2.Name, setRSOwnerRef),
+			},
+			evictionsExpected: 1,
+		},
+		{
+			name:  "No pod tolerates node taint",
+			nodes: []*v1.Node{n1, n3withTaints},
+			pods: []*v1.Pod{
+				//Node 1 pods
+				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_4_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_5_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_6_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_7_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_8_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				// Node 3 pods
+				test.BuildTestPod(fmt.Sprintf("pod_9_%s", n3withTaints.Name), 200, 0, n3withTaints.Name, setRSOwnerRef),
+			},
+			evictionsExpected: 0,
+		},
+		{
+			name:  "Pod which tolerates node taint",
+			nodes: []*v1.Node{n1, n3withTaints},
+			pods: []*v1.Pod{
+				//Node 1 pods
+				test.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_2_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_3_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_4_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_5_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_6_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				test.BuildTestPod(fmt.Sprintf("pod_7_%s", n1.Name), 200, 0, n1.Name, setRSOwnerRef),
+				podThatToleratesTaint,
+				// Node 3 pods
+				test.BuildTestPod(fmt.Sprintf("pod_9_%s", n3withTaints.Name), 200, 0, n3withTaints.Name, setRSOwnerRef),
+			},
+			evictionsExpected: 1,
+		},
+	}
+
+	for _, item := range tests {
+		t.Run(item.name, func(t *testing.T) {
+			var objs []runtime.Object
+			for _, node := range item.nodes {
+				objs = append(objs, node)
+			}
+
+			for _, pod := range item.pods {
+				objs = append(objs, pod)
+			}
+
+			fakePtr := newFake(objs...)
+			var evictionCounter int
+			fakePtr.PrependReactor("create", "pods", func(action core.Action) (bool, runtime.Object, error) {
+				if action.GetSubresource() != "eviction" || action.GetResource().Resource != "pods" {
+					return false, nil, nil
+				}
+				evictionCounter++
+				return true, nil, nil
+			})
+
+			podEvictor := evictions.NewPodEvictor(
+				&fake.Clientset{Fake: *fakePtr},
+				"policy/v1",
+				false,
+				item.evictionsExpected,
+				item.nodes,
+			)
+
+			LowNodeUtilization(ctx, &fake.Clientset{Fake: *fakePtr}, strategy, item.nodes, false, podEvictor)
+
+			if item.evictionsExpected != evictionCounter {
+				t.Errorf("Expected %v evictions, got %v", item.evictionsExpected, evictionCounter)
+			}
+		})
+	}
 }

pkg/descheduler/strategies/node_affinity.go

@@ -0,0 +1,63 @@
+/*
+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"
+
+	v1 "k8s.io/api/core/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/klog"
+
+	"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"
+)
+
+func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, evictLocalStoragePods bool, podEvictor *evictions.PodEvictor) {
+	for _, nodeAffinity := range strategy.Params.NodeAffinityType {
+		klog.V(2).Infof("Executing for nodeAffinityType: %v", nodeAffinity)
+
+		switch nodeAffinity {
+		case "requiredDuringSchedulingIgnoredDuringExecution":
+			for _, node := range nodes {
+				klog.V(1).Infof("Processing node: %#v\n", node.Name)
+
+				pods, err := podutil.ListEvictablePodsOnNode(ctx, client, node, evictLocalStoragePods)
+				if err != nil {
+					klog.Errorf("failed to get pods from %v: %v", node.Name, err)
+				}
+
+				for _, pod := range pods {
+					if pod.Spec.Affinity != nil && pod.Spec.Affinity.NodeAffinity != nil && pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution != nil {
+						if !nodeutil.PodFitsCurrentNode(pod, node) && nodeutil.PodFitsAnyNode(pod, nodes) {
+							klog.V(1).Infof("Evicting pod: %v", pod.Name)
+							if _, err := podEvictor.EvictPod(ctx, pod, node); err != nil {
+								klog.Errorf("Error evicting pod: (%#v)", err)
+								break
+							}
+						}
+					}
+				}
+			}
+		default:
+			klog.Errorf("invalid nodeAffinityType: %v", nodeAffinity)
+		}
+	}
+	klog.V(1).Infof("Evicted %v pods", podEvictor.TotalEvicted())
+}

pkg/descheduler/strategies/node_affinity_test.go

@@ -0,0 +1,168 @@
+/*
+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"
+	"testing"
+
+	"k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/kubernetes/fake"
+	core "k8s.io/client-go/testing"
+	"sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
+	"sigs.k8s.io/descheduler/test"
+)
+
+func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
+	ctx := context.Background()
+	requiredDuringSchedulingIgnoredDuringExecutionStrategy := api.DeschedulerStrategy{
+		Enabled: true,
+		Params: api.StrategyParameters{
+			NodeAffinityType: []string{
+				"requiredDuringSchedulingIgnoredDuringExecution",
+			},
+		},
+	}
+
+	nodeLabelKey := "kubernetes.io/desiredNode"
+	nodeLabelValue := "yes"
+	nodeWithLabels := test.BuildTestNode("nodeWithLabels", 2000, 3000, 10, nil)
+	nodeWithLabels.Labels[nodeLabelKey] = nodeLabelValue
+
+	nodeWithoutLabels := test.BuildTestNode("nodeWithoutLabels", 2000, 3000, 10, nil)
+
+	unschedulableNodeWithLabels := test.BuildTestNode("unschedulableNodeWithLabels", 2000, 3000, 10, nil)
+	nodeWithLabels.Labels[nodeLabelKey] = nodeLabelValue
+	unschedulableNodeWithLabels.Spec.Unschedulable = true
+
+	addPodsToNode := func(node *v1.Node) []v1.Pod {
+		podWithNodeAffinity := test.BuildTestPod("podWithNodeAffinity", 100, 0, node.Name, nil)
+		podWithNodeAffinity.Spec.Affinity = &v1.Affinity{
+			NodeAffinity: &v1.NodeAffinity{
+				RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
+					NodeSelectorTerms: []v1.NodeSelectorTerm{
+						{
+							MatchExpressions: []v1.NodeSelectorRequirement{
+								{
+									Key:      nodeLabelKey,
+									Operator: "In",
+									Values: []string{
+										nodeLabelValue,
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		}
+
+		pod1 := test.BuildTestPod("pod1", 100, 0, node.Name, nil)
+		pod2 := test.BuildTestPod("pod2", 100, 0, node.Name, nil)
+
+		podWithNodeAffinity.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+		pod1.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+		pod2.ObjectMeta.OwnerReferences = test.GetNormalPodOwnerRefList()
+
+		return []v1.Pod{
+			*podWithNodeAffinity,
+			*pod1,
+			*pod2,
+		}
+	}
+
+	tests := []struct {
+		description             string
+		nodes                   []*v1.Node
+		pods                    []v1.Pod
+		strategy                api.DeschedulerStrategy
+		expectedEvictedPodCount int
+		maxPodsToEvict          int
+	}{
+		{
+			description: "Invalid strategy type, should not evict any pods",
+			strategy: api.DeschedulerStrategy{
+				Enabled: true,
+				Params: api.StrategyParameters{
+					NodeAffinityType: []string{
+						"requiredDuringSchedulingRequiredDuringExecution",
+					},
+				},
+			},
+			expectedEvictedPodCount: 0,
+			pods:                    addPodsToNode(nodeWithoutLabels),
+			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			maxPodsToEvict:          0,
+		},
+		{
+			description:             "Pod is correctly scheduled on node, no eviction expected",
+			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			expectedEvictedPodCount: 0,
+			pods:                    addPodsToNode(nodeWithLabels),
+			nodes:                   []*v1.Node{nodeWithLabels},
+			maxPodsToEvict:          0,
+		},
+		{
+			description:             "Pod is scheduled on node without matching labels, another schedulable node available, should be evicted",
+			expectedEvictedPodCount: 1,
+			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			pods:                    addPodsToNode(nodeWithoutLabels),
+			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			maxPodsToEvict:          0,
+		},
+		{
+			description:             "Pod is scheduled on node without matching labels, another schedulable node available, maxPodsToEvict set to 1, should not be evicted",
+			expectedEvictedPodCount: 1,
+			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			pods:                    addPodsToNode(nodeWithoutLabels),
+			nodes:                   []*v1.Node{nodeWithoutLabels, nodeWithLabels},
+			maxPodsToEvict:          1,
+		},
+		{
+			description:             "Pod is scheduled on node without matching labels, but no node where pod fits is available, should not evict",
+			expectedEvictedPodCount: 0,
+			strategy:                requiredDuringSchedulingIgnoredDuringExecutionStrategy,
+			pods:                    addPodsToNode(nodeWithoutLabels),
+			nodes:                   []*v1.Node{nodeWithoutLabels, unschedulableNodeWithLabels},
+			maxPodsToEvict:          0,
+		},
+	}
+
+	for _, tc := range tests {
+
+		fakeClient := &fake.Clientset{}
+		fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
+			return true, &v1.PodList{Items: tc.pods}, nil
+		})
+
+		podEvictor := evictions.NewPodEvictor(
+			fakeClient,
+			"v1",
+			false,
+			tc.maxPodsToEvict,
+			tc.nodes,
+		)
+
+		RemovePodsViolatingNodeAffinity(ctx, fakeClient, tc.strategy, tc.nodes, false, podEvictor)
+		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)
+		}
+	}
+}