Merge pull request #1400 from a7i/kube-1.30

[release 1.30] upgrade kubernetes version and docs

.gitattributes

@@ -0,0 +1,6 @@
+# Always check-out / check-in files with LF line endings.
+* text=auto eol=lf
+
+go.sum merge=union
+**/zz_generated.*.go linguist-generated=true
+vendor/** linguist-vendored

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,46 @@
+---
+name: Bug report
+about: Create a bug report to help improve descheduler
+title: ''
+labels: 'kind/bug'
+assignees: ''
+
+---
+
+<!-- Please answer these questions before submitting your bug report. Thanks! -->
+
+**What version of descheduler are you using?**
+
+descheduler version:
+
+
+**Does this issue reproduce with the latest release?**
+
+
+**Which descheduler CLI options are you using?**
+
+
+**Please provide a copy of your descheduler policy config file**
+
+
+**What k8s version are you using (`kubectl version`)?**
+
+<details><summary><code>kubectl version</code> Output</summary><br><pre>
+$ kubectl version
+
+</pre></details>
+
+
+**What did you do?**
+
+<!--
+If possible, provide a recipe for reproducing the error.
+A detailed sequence of steps describing what to do to observe the issue is good.
+A complete runnable bash shell script is best.
+-->
+
+
+**What did you expect to see?**
+
+
+**What did you see instead?**

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Suggest an idea for descheduler
+title: ''
+labels: 'kind/feature'
+assignees: ''
+
+---
+
+<!-- Please answer these questions before submitting your feature request. Thanks! -->
+
+**Is your feature request related to a problem? Please describe.**
+<!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+**Describe the solution you'd like**
+<!-- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered**
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**What version of descheduler are you using?**
+
+descheduler version:
+
+**Additional context**
+<!-- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/misc_request.md

@@ -0,0 +1,18 @@
+---
+name: Miscellaneous
+about: Not a bug and not a feature
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!--
+Please do not use this to submit a bug report or feature request. Use the
+bug report or feature request options instead.
+
+Also, please consider posting in the Kubernetes Slack #sig-scheduling channel
+instead of opening an issue if this is a support request.
+
+Thanks!
+-->

.github/ci/ct.yaml

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

.github/workflows/helm.yaml

@@ -0,0 +1,62 @@
+name: Helm
+
+on:
+  push:
+    branches:
+      - master
+      - release-*
+    paths:
+      - 'charts/**'
+      - '.github/workflows/helm.yaml'
+      - '.github/ci/ct.yaml'
+  pull_request:
+    paths:
+      - 'charts/**'
+      - '.github/workflows/helm.yaml'
+      - '.github/ci/ct.yaml'
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v2.1
+        with:
+          version: v3.9.2
+
+      - uses: actions/setup-python@v3.1.2
+        with:
+          python-version: 3.7
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: '1.22.2'
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.2.1
+        with:
+          version: v3.7.0
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --config=.github/ci/ct.yaml)
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Run chart-testing (lint)
+        run: ct lint --config=.github/ci/ct.yaml --validate-maintainers=false
+
+      # Need a multi node cluster so descheduler runs until evictions
+      - name: Create multi node Kind cluster
+        run: make kind-multi-node
+
+      # helm-extra-set-args only available after ct 3.6.0
+      - name: Run chart-testing (install)
+        run: ct install --config=.github/ci/ct.yaml --helm-extra-set-args='--set=kind=Deployment'

.github/workflows/manifests.yaml

@@ -0,0 +1,42 @@
+name: manifests
+
+on:
+  pull_request:
+
+jobs:
+  deploy:
+    strategy:
+      matrix:
+        k8s-version: ["v1.30.0"]
+        descheduler-version: ["v0.29.0"]
+        descheduler-api: ["v1alpha1", "v1alpha2"]
+        manifest: ["deployment"]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v3
+      - name: Create kind cluster
+        uses: helm/kind-action@v1.5.0
+        with:
+          node_image: kindest/node:${{ matrix.k8s-version }}
+          kubectl_version: ${{ matrix.k8s-version }}
+          config: test/kind-config.yaml
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+      - name: Build image
+        run: |
+          VERSION="dev" make dev-image
+          docker tag descheduler:dev registry.k8s.io/descheduler/descheduler:${{ matrix.descheduler-version }}
+      - name: Kind load image
+        run: |
+          kind load docker-image registry.k8s.io/descheduler/descheduler:${{ matrix.descheduler-version }} --name chart-testing
+      - name: Create k8s manifests
+        run: |
+          kubectl create -f kubernetes/base/rbac.yaml
+          kubectl create -f test/manifests/${{ matrix.descheduler-api }}/configmap.yaml
+          kubectl create -f kubernetes/${{ matrix.manifest }}/${{ matrix.manifest }}.yaml
+      - name: Wait for ready condition
+        run: |
+          kubectl wait --for=condition=Available --timeout=60s ${{ matrix.manifest }} descheduler -n kube-system

.github/workflows/release.yaml

@@ -0,0 +1,31 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - release-*
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.7.0
+
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1.1.0
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          CR_RELEASE_NAME_TEMPLATE: "descheduler-helm-chart-{{ .Version }}"

.github/workflows/security.yaml

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

.gitignore

@@ -0,0 +1,8 @@
+_output/
+_tmp/
+vendordiff.patch
+.idea/
+*.code-workspace
+.vscode/
+kind
+bin/

.golangci.yml

@@ -0,0 +1,18 @@
+run:
+  timeout: 2m
+
+linters:
+  disable-all: true
+  enable:
+    - gofmt
+    - gofumpt
+    - gosimple
+    - gocyclo
+    - misspell
+    - govet
+
+linters-settings:
+  gofumpt:
+    extra-rules: true
+  goimports:
+    local-prefixes: sigs.k8s.io/descheduler

.travis.yml

@@ -1,7 +0,0 @@
-language: go
-go:
-  - 1.9.1
-script:
-- hack/verify-gofmt.sh
-- make build
-- make test-unit

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

@@ -11,16 +11,20 @@
 # 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:1.9.2
+FROM golang:1.22.2
 
-WORKDIR /go/src/github.com/kubernetes-incubator/descheduler
+WORKDIR /go/src/sigs.k8s.io/descheduler
 COPY . .
-RUN make
+ARG ARCH
+ARG VERSION
+RUN VERSION=${VERSION} make build.$ARCH
 
 FROM scratch
 
-MAINTAINER Avesh Agarwal <avagarwa@redhat.com>
+MAINTAINER Kubernetes SIG Scheduling <kubernetes-sig-scheduling@googlegroups.com>
 
-COPY --from=0 /go/src/github.com/kubernetes-incubator/descheduler/_output/bin/descheduler /bin/descheduler
+USER 1000
+
+COPY --from=0 /go/src/sigs.k8s.io/descheduler/_output/bin/descheduler /bin/descheduler
 
 CMD ["/bin/descheduler", "--help"]

Dockerfile.dev

@@ -13,7 +13,9 @@
 # limitations under the License.
 FROM scratch
 
-MAINTAINER Avesh Agarwal <avagarwa@redhat.com>
+MAINTAINER Kubernetes SIG Scheduling <kubernetes-sig-scheduling@googlegroups.com>
+
+USER 1000
 
 COPY _output/bin/descheduler /bin/descheduler
 

Makefile

@@ -14,32 +14,112 @@
 
 .PHONY: test
 
-# VERSION is currently based on the last commit
-VERSION=`git describe --tags`
-COMMIT=`git rev-parse HEAD`
-BUILD=`date +%FT%T%z`
-LDFLAG_LOCATION=github.com/kubernetes-incubator/descheduler/cmd/descheduler/app
+export CONTAINER_ENGINE ?= docker
 
-LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitCommit=${COMMIT}"
+# VERSION is based on a date stamp plus the last commit
+VERSION?=v$(shell date +%Y%m%d)-$(shell git describe --tags)
+BRANCH?=$(shell git branch --show-current)
+SHA1?=$(shell git rev-parse HEAD)
+BUILD=$(shell date +%FT%T%z)
+LDFLAG_LOCATION=sigs.k8s.io/descheduler/pkg/version
+ARCHS = amd64 arm arm64
 
+LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitbranch=${BRANCH} -X ${LDFLAG_LOCATION}.gitsha1=${SHA1}"
+
+GOLANGCI_VERSION := v1.58.1
+HAS_GOLANGCI := $(shell ls _output/bin/golangci-lint 2> /dev/null)
+
+GOFUMPT_VERSION := v0.4.0
+HAS_GOFUMPT := $(shell command -v gofumpt 2> /dev/null)
+
+# 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
-# Should this be changed?
 IMAGE:=descheduler:$(VERSION)
 
+# IMAGE_GCLOUD is the image name of descheduler in the remote registry
+IMAGE_GCLOUD:=$(REGISTRY)/descheduler:$(VERSION)
+
+# CURRENT_DIR is the current dir where the Makefile exists
+CURRENT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+
+
+# 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 2> /dev/null)
+
 all: build
 
 build:
-	CGO_ENABLED=0 go build ${LDFLAGS} -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
+
+build.amd64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build ${LDFLAGS} -o _output/bin/descheduler sigs.k8s.io/descheduler/cmd/descheduler
+
+build.arm:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 go build ${LDFLAGS} -o _output/bin/descheduler sigs.k8s.io/descheduler/cmd/descheduler
+
+build.arm64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build ${LDFLAGS} -o _output/bin/descheduler sigs.k8s.io/descheduler/cmd/descheduler
 
 dev-image: build
-	docker build -f Dockerfile.dev -t $(IMAGE) .
+	$(CONTAINER_ENGINE) build -f Dockerfile.dev -t $(IMAGE) .
 
 image:
-	docker build -t $(IMAGE) .
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE) .
+
+image.amd64:
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="amd64" -t $(IMAGE)-amd64 .
+
+image.arm:
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm" -t $(IMAGE)-arm .
+
+image.arm64:
+	$(CONTAINER_ENGINE) build --build-arg VERSION="$(VERSION)" --build-arg ARCH="arm64" -t $(IMAGE)-arm64 .
+
+push: image
+	gcloud auth configure-docker
+	$(CONTAINER_ENGINE) tag $(IMAGE) $(IMAGE_GCLOUD)
+	$(CONTAINER_ENGINE) push $(IMAGE_GCLOUD)
+
+push-all: image.amd64 image.arm image.arm64
+	gcloud auth configure-docker
+	for arch in $(ARCHS); do \
+		$(CONTAINER_ENGINE) tag $(IMAGE)-$${arch} $(IMAGE_GCLOUD)-$${arch} ;\
+		$(CONTAINER_ENGINE) push $(IMAGE_GCLOUD)-$${arch} ;\
+	done
+	DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest create $(IMAGE_GCLOUD) $(addprefix --amend $(IMAGE_GCLOUD)-, $(ARCHS))
+	for arch in $(ARCHS); do \
+		DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest annotate --arch $${arch} $(IMAGE_GCLOUD) $(IMAGE_GCLOUD)-$${arch} ;\
+	done
+	DOCKER_CLI_EXPERIMENTAL=enabled $(CONTAINER_ENGINE) manifest push $(IMAGE_GCLOUD) ;\
 
 clean:
 	rm -rf _output
+	rm -rf _tmp
+
+verify: verify-govet verify-spelling verify-gofmt verify-vendor lint lint-chart verify-gen
+
+verify-govet:
+	./hack/verify-govet.sh
+
+verify-spelling:
+	./hack/verify-spelling.sh
+
+verify-gofmt:
+	./hack/verify-gofmt.sh
+
+verify-vendor:
+	./hack/verify-vendor.sh
+
+verify-docs:
+	./hack/verify-docs.sh
 
 test-unit:
 	./test/run-unit-tests.sh
@@ -48,7 +128,50 @@ test-e2e:
 	./test/run-e2e-tests.sh
 
 gen:
-	./hack/update-codecgen.sh
 	./hack/update-generated-conversions.sh
 	./hack/update-generated-deep-copies.sh
 	./hack/update-generated-defaulters.sh
+	./hack/update-docs.sh
+
+gen-docker:
+	$(CONTAINER_ENGINE) run --entrypoint make -it -v $(CURRENT_DIR):/go/src/sigs.k8s.io/descheduler -w /go/src/sigs.k8s.io/descheduler golang:1.22.2 gen
+
+verify-gen:
+	./hack/verify-conversions.sh
+	./hack/verify-deep-copies.sh
+	./hack/verify-defaulters.sh
+	./hack/verify-docs.sh
+
+lint:
+ifndef HAS_GOLANGCI
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b ./_output/bin ${GOLANGCI_VERSION}
+endif
+	./_output/bin/golangci-lint run
+
+fmt:
+ifndef HAS_GOFUMPT
+	go install mvdan.cc/gofumpt@${GOFUMPT_VERSION}
+endif
+	gofumpt -w -extra .
+
+# helm
+
+ensure-helm-install:
+ifndef HAS_HELM
+	curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 && chmod 700 ./get_helm.sh && ./get_helm.sh
+endif
+
+lint-chart: ensure-helm-install
+	helm lint ./charts/descheduler
+
+build-helm:
+	helm package ./charts/descheduler --dependency-update --destination ./bin/chart
+
+test-helm: ensure-helm-install
+	./test/run-helm-tests.sh
+
+kind-multi-node:
+	kind create cluster --name kind --config ./hack/kind_config.yaml --wait 2m
+
+ct-helm:
+	./hack/verify-chart.sh

OWNERS

@@ -1,8 +1,19 @@
 approvers:
-- aveshagarwal
-- ravisantoshgudimetla
-- jayunit100
+- damemi
+- ingvagabund
+- seanmalloy
+- a7i
+- knelasevero
 reviewers:
+- damemi
+- seanmalloy
+- ingvagabund
+- lixiang233
+- a7i
+- janeliul
+- knelasevero
+- jklaw90
+emeritus_approvers:
 - aveshagarwal
+- k82cn
 - ravisantoshgudimetla
-- jayunit100

SECURITY_CONTACTS

@@ -11,4 +11,5 @@
 # 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: 0.29.0
+appVersion: 0.29.0
+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: Kubernetes SIG Scheduling
+  email: kubernetes-sig-scheduling@googlegroups.com

charts/descheduler/README.md

@@ -0,0 +1,91 @@
+# 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 my-release --namespace kube-system descheduler/descheduler
+```
+
+## Introduction
+
+This chart bootstraps a [descheduler](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 --namespace kube-system 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                                   |
+| ----------------------------------- | --------------------------------------------------------------------------------------------------------------------- | ----------------------------------------- |
+| `kind`                              | Use as CronJob or Deployment                                                                                          | `CronJob`                                 |
+| `image.repository`                  | Docker repository to use                                                                                              | `registry.k8s.io/descheduler/descheduler` |
+| `image.tag`                         | Docker tag to use                                                                                                     | `v[chart appVersion]`                     |
+| `image.pullPolicy`                  | Docker image pull policy                                                                                              | `IfNotPresent`                            |
+| `imagePullSecrets`                  | Docker repository secrets                                                                                             | `[]`                                      |
+| `nameOverride`                      | String to partially override `descheduler.fullname` template (will prepend the release name)                          | `""`                                      |
+| `fullnameOverride`                  | String to fully override `descheduler.fullname` template                                                              | `""`                                      |
+| `cronJobApiVersion`                 | CronJob API Group Version                                                                                             | `"batch/v1"`                              |
+| `schedule`                          | The cron schedule to run the _descheduler_ job on                                                                     | `"*/2 * * * *"`                           |
+| `startingDeadlineSeconds`           | If set, configure `startingDeadlineSeconds` for the _descheduler_ job                                                 | `nil`                                     |
+| `timeZone`                          | configure `timeZone` for CronJob                                                                                      | `nil`                                     |
+| `successfulJobsHistoryLimit`        | If set, configure `successfulJobsHistoryLimit` for the _descheduler_ job                                              | `3`                                       |
+| `failedJobsHistoryLimit`            | If set, configure `failedJobsHistoryLimit` for the _descheduler_ job                                                  | `1`                                       |
+| `ttlSecondsAfterFinished`           | If set, configure `ttlSecondsAfterFinished` for the _descheduler_ job                                                 | `nil`                                     |
+| `deschedulingInterval`              | If using kind:Deployment, sets time between consecutive descheduler executions.                                       | `5m`                                      |
+| `replicas`                          | The replica count for Deployment                                                                                      | `1`                                       |
+| `leaderElection`                    | The options for high availability when running replicated components                                                  | _see values.yaml_                         |
+| `cmdOptions`                        | The options to pass to the _descheduler_ command                                                                      | _see values.yaml_                         |
+| `deschedulerPolicy.strategies`      | The _descheduler_ strategies to apply                                                                                 | _see values.yaml_                         |
+| `priorityClassName`                 | The name of the priority class to add to pods                                                                         | `system-cluster-critical`                 |
+| `rbac.create`                       | If `true`, create & use RBAC resources                                                                                | `true`                                    |
+| `resources`                         | Descheduler container CPU and memory requests/limits                                                                  | _see values.yaml_                         |
+| `serviceAccount.create`             | If `true`, create a service account for the cron job                                                                  | `true`                                    |
+| `serviceAccount.name`               | The name of the service account to use, if not set and create is true a name is generated using the fullname template | `nil`                                     |
+| `serviceAccount.annotations`        | Specifies custom annotations for the serviceAccount                                                                   | `{}`                                      |
+| `podAnnotations`                    | Annotations to add to the descheduler Pods                                                                            | `{}`                                      |
+| `podLabels`                         | Labels to add to the descheduler Pods                                                                                 | `{}`                                      |
+| `nodeSelector`                      | Node selectors to run the descheduler cronjob/deployment on specific nodes                                            | `nil`                                     |
+| `service.enabled`                   | If `true`, create a service for deployment                                                                            | `false`                                   |
+| `serviceMonitor.enabled`            | If `true`, create a ServiceMonitor for deployment                                                                     | `false`                                   |
+| `serviceMonitor.namespace`          | The namespace where Prometheus expects to find service monitors                                                       | `nil`                                     |
+| `serviceMonitor.additionalLabels`   | Add custom labels to the ServiceMonitor resource                                                                      | `{}`                                      |
+| `serviceMonitor.interval`           | The scrape interval. If not set, the Prometheus default scrape interval is used                                       | `nil`                                     |
+| `serviceMonitor.honorLabels`        | Keeps the scraped data's labels when labels are on collisions with target labels.                                     | `true`                                    |
+| `serviceMonitor.insecureSkipVerify` | Skip TLS certificate validation when scraping                                                                         | `true`                                    |
+| `serviceMonitor.serverName`         | Name of the server to use when validating TLS certificate                                                             | `nil`                                     |
+| `serviceMonitor.metricRelabelings`  | MetricRelabelConfigs to apply to samples after scraping, but before ingestion                                         | `[]`                                      |
+| `serviceMonitor.relabelings`        | RelabelConfigs to apply to samples before scraping                                                                    | `[]`                                      |
+| `affinity`                          | Node affinity to run the descheduler cronjob/deployment on specific nodes                                             | `nil`                                     |
+| `topologySpreadConstraints`         | Topology Spread Constraints to spread the descheduler cronjob/deployment across the cluster                           | `[]`                                     |
+| `tolerations`                       | tolerations to run the descheduler cronjob/deployment on specific nodes                                               | `nil`                                     |
+| `suspend`                           | Set spec.suspend in descheduler cronjob                                                                               | `false`                                   |
+| `commonLabels`                      | Labels to apply to all resources                                                                                      | `{}`                                      |
+| `livenessProbe`                     | Liveness probe configuration for the descheduler container                                                            | _see values.yaml_                         |

charts/descheduler/templates/NOTES.txt

@@ -0,0 +1,12 @@
+Descheduler installed as a {{ .Values.kind }}.
+
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.replicas 1.0}}
+WARNING: You set replica count as 1 and workload kind as Deployment however leaderElection is not enabled. Consider enabling Leader Election for HA mode.
+{{- end}}
+{{- if .Values.leaderElection }}
+{{- if and (hasKey .Values.cmdOptions "dry-run") (eq (get .Values.cmdOptions "dry-run") true) }}
+WARNING: You enabled DryRun mode, you can't use Leader Election.
+{{- end}}
+{{- end}}
+{{- end}}

charts/descheduler/templates/_helpers.tpl

@@ -0,0 +1,94 @@
+{{/* 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 }}
+{{- if .Values.commonLabels}}
+{{ toYaml .Values.commonLabels }}
+{{- end }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "descheduler.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "descheduler.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- 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 -}}
+
+{{/*
+Leader Election
+*/}}
+{{- define "descheduler.leaderElection"}}
+{{- if .Values.leaderElection -}}
+- --leader-elect={{ .Values.leaderElection.enabled }}
+{{- if .Values.leaderElection.leaseDuration }}
+- --leader-elect-lease-duration={{ .Values.leaderElection.leaseDuration }}
+{{- end }}
+{{- if .Values.leaderElection.renewDeadline }}
+- --leader-elect-renew-deadline={{ .Values.leaderElection.renewDeadline }}
+{{- end }}
+{{- if .Values.leaderElection.retryPeriod }}
+- --leader-elect-retry-period={{ .Values.leaderElection.retryPeriod }}
+{{- end }}
+{{- if .Values.leaderElection.resourceLock }}
+- --leader-elect-resource-lock={{ .Values.leaderElection.resourceLock }}
+{{- end }}
+{{- if .Values.leaderElection.resourceName }}
+- --leader-elect-resource-name={{ .Values.leaderElection.resourceName }}
+{{- end }}
+{{- if .Values.leaderElection.resourceNamescape }}
+- --leader-elect-resource-namespace={{ .Values.leaderElection.resourceNamescape }}
+{{- end -}}
+{{- end }}
+{{- end }}

charts/descheduler/templates/clusterrole.yaml

@@ -0,0 +1,36 @@
+{{- 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: ["events.k8s.io"]
+  resources: ["events"]
+  verbs: ["create", "update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["namespaces"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list", "delete"]
+- apiGroups: [""]
+  resources: ["pods/eviction"]
+  verbs: ["create"]
+- apiGroups: ["scheduling.k8s.io"]
+  resources: ["priorityclasses"]
+  verbs: ["get", "watch", "list"]
+{{- if .Values.leaderElection.enabled }}
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  verbs: ["create", "update"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  resourceNames: ["{{ .Values.leaderElection.resourceName | default "descheduler" }}"]
+  verbs: ["get", "patch", "delete"]
+{{- end }}
+{{- end -}}

charts/descheduler/templates/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 +1,14 @@
+{{- if .Values.deschedulerPolicy }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+data:
+  policy.yaml: |
+    apiVersion: "{{ .Values.deschedulerPolicyAPIVersion }}"
+    kind: "DeschedulerPolicy"
+{{ toYaml .Values.deschedulerPolicy | trim | indent 4 }}
+{{- end }}

charts/descheduler/templates/cronjob.yaml

@@ -0,0 +1,103 @@
+{{- if eq .Values.kind "CronJob" }}
+apiVersion: {{ .Values.cronJobApiVersion | default "batch/v1" }}
+kind: CronJob
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+spec:
+  schedule: {{ .Values.schedule | quote }}
+  {{- if .Values.suspend }}
+  suspend: {{ .Values.suspend }}
+  {{- end }}
+  concurrencyPolicy: "Forbid"
+  {{- if .Values.startingDeadlineSeconds }}
+  startingDeadlineSeconds: {{ .Values.startingDeadlineSeconds }}
+  {{- end }}
+  {{- if .Values.successfulJobsHistoryLimit }}
+  successfulJobsHistoryLimit: {{ .Values.successfulJobsHistoryLimit }}
+  {{- end }}
+  {{- if .Values.failedJobsHistoryLimit }}
+  failedJobsHistoryLimit: {{ .Values.failedJobsHistoryLimit }}
+  {{- end }}
+  {{- if .Values.timeZone }}
+  timeZone: {{ .Values.timeZone }}
+  {{- end }}
+  jobTemplate:
+    spec:
+      {{- if .Values.ttlSecondsAfterFinished }}
+      ttlSecondsAfterFinished: {{ .Values.ttlSecondsAfterFinished }}
+      {{- end }}
+      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:
+            {{- include "descheduler.selectorLabels" . | nindent 12 }}
+            {{- if .Values.podLabels }}
+            {{- .Values.podLabels | toYaml | nindent 12 }}
+            {{- end }}
+        spec:
+          {{- with .Values.nodeSelector }}
+          nodeSelector:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.affinity }}
+          affinity:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.topologySpreadConstraints }}
+          topologySpreadConstraints:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- if .Values.dnsConfig }}
+          dnsConfig:
+            {{- .Values.dnsConfig | toYaml | nindent 12 }}
+          {{- end }}
+          {{- with .Values.tolerations }}
+          tolerations:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- if .Values.priorityClassName }}
+          priorityClassName: {{ .Values.priorityClassName }}
+          {{- end }}
+          serviceAccountName: {{ template "descheduler.serviceAccountName" . }}
+          restartPolicy: "Never"
+          {{- with .Values.imagePullSecrets }}
+          imagePullSecrets:
+          {{- toYaml . | nindent 10 }}
+          {{- end }}
+          containers:
+            - name: {{ .Chart.Name }}
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (printf "v%s" .Chart.AppVersion) }}"
+              imagePullPolicy: {{ .Values.image.pullPolicy }}
+              command:
+                {{- toYaml .Values.command | nindent 16 }}
+              args:
+                - --policy-config-file=/policy-dir/policy.yaml
+                {{- range $key, $value := .Values.cmdOptions }}
+                - {{ printf "--%s" $key }}{{ if $value }}={{ $value }}{{ end }}
+                {{- end }}
+              livenessProbe:
+                {{- toYaml .Values.livenessProbe | nindent 16 }}
+              resources:
+                {{- toYaml .Values.resources | nindent 16 }}
+              securityContext:
+                {{- toYaml .Values.securityContext | nindent 16 }}
+              volumeMounts:
+                - mountPath: /policy-dir
+                  name: policy-volume
+          {{- if .Values.podSecurityContext }}
+          securityContext:
+            {{- toYaml .Values.podSecurityContext | nindent 12 }}
+          {{- end }}
+          volumes:
+          - name: policy-volume
+            configMap:
+              name: {{ template "descheduler.fullname" . }}
+{{- end }}

charts/descheduler/templates/deployment.yaml

@@ -0,0 +1,95 @@
+{{- if eq .Values.kind "Deployment" }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+spec:
+  {{- if gt .Values.replicas 1.0}}
+  {{- if not .Values.leaderElection.enabled }}
+  {{- fail "You must set leaderElection to use more than 1 replica"}}
+  {{- end}}
+  replicas: {{ required "leaderElection required for running more than one replica" .Values.replicas }}
+  {{- else }}
+  replicas: 1
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "descheduler.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "descheduler.selectorLabels" . | nindent 8 }}
+        {{- if .Values.podLabels }}
+        {{- .Values.podLabels | toYaml | nindent 8 }}
+        {{- end }}
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+        {{- if .Values.podAnnotations }}
+        {{- .Values.podAnnotations | toYaml | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- if .Values.dnsConfig }}
+      dnsConfig:
+        {{- .Values.dnsConfig | toYaml | nindent 8 }}
+      {{- end }}
+      {{- if .Values.priorityClassName }}
+      priorityClassName: {{ .Values.priorityClassName }}
+      {{- end }}
+      serviceAccountName: {{ template "descheduler.serviceAccountName" . }}
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+      {{- toYaml . | nindent 6 }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (printf "v%s" .Chart.AppVersion) }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            {{- toYaml .Values.command | nindent 12 }}
+          args:
+            - --policy-config-file=/policy-dir/policy.yaml
+            - --descheduling-interval={{ required "deschedulingInterval required for running as Deployment" .Values.deschedulingInterval }}
+            {{- range $key, $value := .Values.cmdOptions }}
+            - {{ printf "--%s" $key }}{{ if $value }}={{ $value }}{{ end }}
+            {{- end }}
+            {{- include "descheduler.leaderElection" . | nindent 12 }}
+          ports:
+            - containerPort: 10258
+              protocol: TCP
+          livenessProbe:
+            {{- toYaml .Values.livenessProbe | nindent 12 }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          volumeMounts:
+            - mountPath: /policy-dir
+              name: policy-volume
+      {{- if .Values.podSecurityContext }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{- end }}
+      volumes:
+        - name: policy-volume
+          configMap:
+            name: {{ template "descheduler.fullname" . }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.topologySpreadConstraints }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end }}

charts/descheduler/templates/service.yaml

@@ -0,0 +1,27 @@
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.service.enabled true }}
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+  name: {{ template "descheduler.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  clusterIP: None
+  {{- if .Values.service.ipFamilyPolicy }}
+  ipFamilyPolicy: {{ .Values.service.ipFamilyPolicy }}
+  {{- end }}
+  {{- if .Values.service.ipFamilies }}
+  ipFamilies: {{ toYaml .Values.service.ipFamilies | nindent 4 }}
+  {{- end }}
+  ports:
+  - name: http-metrics
+    port: 10258
+    protocol: TCP
+    targetPort: 10258
+  selector:
+    {{- include "descheduler.selectorLabels" . | nindent 4 }}
+  type: ClusterIP
+{{- end }}
+{{- end }}

charts/descheduler/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "descheduler.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+{{- if .Values.serviceAccount.annotations }}
+  annotations: {{ toYaml .Values.serviceAccount.annotations | nindent 4 }}
+{{- end }}
+{{- end -}}

charts/descheduler/templates/servicemonitor.yaml

@@ -0,0 +1,44 @@
+{{- if eq .Values.kind "Deployment" }}
+{{- if eq .Values.serviceMonitor.enabled true }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "descheduler.fullname" . }}-servicemonitor
+  namespace: {{ .Values.serviceMonitor.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "descheduler.labels" . | nindent 4 }}
+    {{- if .Values.serviceMonitor.additionalLabels }}
+    {{- toYaml .Values.serviceMonitor.additionalLabels | nindent 4 }}
+    {{- end }}
+spec:
+  jobLabel: jobLabel
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{- include "descheduler.selectorLabels" . | nindent 6 }}
+  endpoints:
+  - honorLabels: {{ .Values.serviceMonitor.honorLabels | default true }}
+    port: http-metrics
+    {{- if .Values.serviceMonitor.interval }}
+    interval: {{ .Values.serviceMonitor.interval }}
+    {{- end }}
+    scheme: https
+    tlsConfig:
+      {{- if eq .Values.serviceMonitor.insecureSkipVerify true }}
+      insecureSkipVerify: true
+      {{- end }}
+      {{- if .Values.serviceMonitor.serverName }}
+      serverName: {{ .Values.serviceMonitor.serverName }}
+      {{- end}}
+{{- if .Values.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+{{ tpl (toYaml .Values.serviceMonitor.metricRelabelings | indent 4) . }}
+{{- end }}
+{{- if .Values.serviceMonitor.relabelings }}
+    relabelings:
+{{ tpl (toYaml .Values.serviceMonitor.relabelings | indent 4) . }}
+{{- end }}
+{{- end }}
+{{- end }}

charts/descheduler/values.yaml

@@ -0,0 +1,245 @@
+# Default values for descheduler.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+# CronJob or Deployment
+kind: CronJob
+
+image:
+  repository: registry.k8s.io/descheduler/descheduler
+  # Overrides the image tag whose default is the chart version
+  tag: ""
+  pullPolicy: IfNotPresent
+
+imagePullSecrets:
+#   - name: container-registry-secret
+
+resources:
+  requests:
+    cpu: 500m
+    memory: 256Mi
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+securityContext:
+  allowPrivilegeEscalation: false
+  capabilities:
+    drop:
+      - ALL
+  privileged: false
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 1000
+
+# podSecurityContext -- [Security context for pod](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/)
+podSecurityContext: {}
+  # fsGroup: 1000
+
+nameOverride: ""
+fullnameOverride: ""
+
+# labels that'll be applied to all resources
+commonLabels: {}
+
+cronJobApiVersion: "batch/v1"
+schedule: "*/2 * * * *"
+suspend: false
+# startingDeadlineSeconds: 200
+# successfulJobsHistoryLimit: 3
+# failedJobsHistoryLimit: 1
+# ttlSecondsAfterFinished 600
+# timeZone: Etc/UTC
+
+# Required when running as a Deployment
+deschedulingInterval: 5m
+
+# Specifies the replica count for Deployment
+# Set leaderElection if you want to use more than 1 replica
+# Set affinity.podAntiAffinity rule if you want to schedule onto a node
+# only if that node is in the same zone as at least one already-running descheduler
+replicas: 1
+
+# Specifies whether Leader Election resources should be created
+# Required when running as a Deployment
+# NOTE: Leader election can't be activated if DryRun enabled
+leaderElection: {}
+#  enabled: true
+#  leaseDuration: 15s
+#  renewDeadline: 10s
+#  retryPeriod: 2s
+#  resourceLock: "leases"
+#  resourceName: "descheduler"
+#  resourceNamescape: "kube-system"
+
+command:
+- "/bin/descheduler"
+
+cmdOptions:
+  v: 3
+
+# Recommended to use the latest Policy API version supported by the Descheduler app version
+deschedulerPolicyAPIVersion: "descheduler/v1alpha2"
+
+# deschedulerPolicy contains the policies the descheduler will execute.
+# To use policies stored in an existing configMap use:
+# NOTE: The name of the cm should comply to {{ template "descheduler.fullname" . }}
+# deschedulerPolicy: {}
+deschedulerPolicy:
+  # nodeSelector: "key1=value1,key2=value2"
+  # maxNoOfPodsToEvictPerNode: 10
+  # maxNoOfPodsToEvictPerNamespace: 10
+  # ignorePvcPods: true
+  # evictLocalStoragePods: true
+  # evictDaemonSetPods: true
+  # tracing:
+  #   collectorEndpoint: otel-collector.observability.svc.cluster.local:4317
+  #   transportCert: ""
+  #   serviceName: ""
+  #   serviceNamespace: ""
+  #   sampleRate: 1.0
+  #   fallbackToNoOpProviderOnError: true
+  profiles:
+    - name: default
+      pluginConfig:
+        - name: DefaultEvictor
+          args:
+            ignorePvcPods: true
+            evictLocalStoragePods: true
+        - name: RemoveDuplicates
+        - name: RemovePodsHavingTooManyRestarts
+          args:
+            podRestartThreshold: 100
+            includingInitContainers: true
+        - name: RemovePodsViolatingNodeTaints
+          args:
+            nodeAffinityType:
+              - requiredDuringSchedulingIgnoredDuringExecution
+        - name: RemovePodsViolatingInterPodAntiAffinity
+        - name: RemovePodsViolatingTopologySpreadConstraint
+          args:
+            includeSoftConstraints: false
+        - name: LowNodeUtilization
+          args:
+            thresholds:
+              cpu: 20
+              memory: 20
+              pods: 20
+            targetThresholds:
+              cpu: 50
+              memory: 50
+              pods: 50
+      plugins:
+        balance:
+          enabled:
+            - RemoveDuplicates
+            - RemovePodsViolatingNodeAffinity
+            - RemovePodsViolatingTopologySpreadConstraint
+            - LowNodeUtilization
+        deschedule:
+          enabled:
+            - RemovePodsHavingTooManyRestarts
+            - RemovePodsViolatingNodeTaints
+            - RemovePodsViolatingNodeAffinity
+            - RemovePodsViolatingInterPodAntiAffinity
+
+priorityClassName: system-cluster-critical
+
+nodeSelector: {}
+#  foo: bar
+
+affinity: {}
+# nodeAffinity:
+#   requiredDuringSchedulingIgnoredDuringExecution:
+#     nodeSelectorTerms:
+#     - matchExpressions:
+#       - key: kubernetes.io/e2e-az-name
+#         operator: In
+#         values:
+#         - e2e-az1
+#         - e2e-az2
+#  podAntiAffinity:
+#    requiredDuringSchedulingIgnoredDuringExecution:
+#      - labelSelector:
+#          matchExpressions:
+#            - key: app.kubernetes.io/name
+#              operator: In
+#              values:
+#                - descheduler
+#        topologyKey: "kubernetes.io/hostname"
+topologySpreadConstraints: []
+# - maxSkew: 1
+#   topologyKey: kubernetes.io/hostname
+#   whenUnsatisfiable: DoNotSchedule
+#   labelSelector:
+#     matchLabels:
+#       app.kubernetes.io/name: descheduler
+tolerations: []
+# - key: 'management'
+#   operator: 'Equal'
+#   value: 'tool'
+#   effect: 'NoSchedule'
+
+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:
+  # Specifies custom annotations for the serviceAccount
+  annotations: {}
+
+podAnnotations: {}
+
+podLabels: {}
+
+dnsConfig: {}
+
+livenessProbe:
+  failureThreshold: 3
+  httpGet:
+    path: /healthz
+    port: 10258
+    scheme: HTTPS
+  initialDelaySeconds: 3
+  periodSeconds: 10
+
+service:
+  enabled: false
+  # @param service.ipFamilyPolicy [string], support SingleStack, PreferDualStack and RequireDualStack
+  #
+  ipFamilyPolicy: ""
+  # @param service.ipFamilies [array] List of IP families (e.g. IPv4, IPv6) assigned to the service.
+  # Ref: https://kubernetes.io/docs/concepts/services-networking/dual-stack/
+  # E.g.
+  # ipFamilies:
+  #   - IPv6
+  #   - IPv4
+  ipFamilies: []
+
+serviceMonitor:
+  enabled: false
+  # The namespace where Prometheus expects to find service monitors.
+  # namespace: ""
+  # Add custom labels to the ServiceMonitor resource
+  additionalLabels: {}
+    # prometheus: kube-prometheus-stack
+  interval: ""
+  # honorLabels: true
+  insecureSkipVerify: true
+  serverName: null
+  metricRelabelings: []
+    # - action: keep
+    #   regex: 'descheduler_(build_info|pods_evicted)'
+    #   sourceLabels: [__name__]
+  relabelings: []
+    # - sourceLabels: [__meta_kubernetes_pod_node_name]
+    #   separator: ;
+    #   regex: ^(.*)$
+    #   targetLabel: nodename
+    #   replacement: $1
+    #   action: replace

cloudbuild.yaml

@@ -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: 3600s
+# 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-staging-test-infra/gcb-docker-gcloud:v20211118-2f2d816b90'
+    entrypoint: make
+    env:
+    - DOCKER_CLI_EXPERIMENTAL=enabled
+    - VERSION=$_GIT_TAG
+    - BASE_REF=$_PULL_BASE_REF
+    args:
+    - push-all
+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

@@ -18,43 +18,92 @@ limitations under the License.
 package options
 
 import (
-	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"
+	"time"
 
 	"github.com/spf13/pflag"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	apiserveroptions "k8s.io/apiserver/pkg/server/options"
+	clientset "k8s.io/client-go/kubernetes"
+	componentbaseconfig "k8s.io/component-base/config"
+	componentbaseoptions "k8s.io/component-base/config/options"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig"
+	"sigs.k8s.io/descheduler/pkg/apis/componentconfig/v1alpha1"
+	deschedulerscheme "sigs.k8s.io/descheduler/pkg/descheduler/scheme"
+	"sigs.k8s.io/descheduler/pkg/tracing"
+)
+
+const (
+	DefaultDeschedulerPort = 10258
 )
 
 // DeschedulerServer configuration
 type DeschedulerServer struct {
 	componentconfig.DeschedulerConfiguration
-	Client clientset.Interface
+
+	Client         clientset.Interface
+	EventClient    clientset.Interface
+	SecureServing  *apiserveroptions.SecureServingOptionsWithLoopback
+	DisableMetrics bool
+	EnableHTTP2    bool
 }
 
 // NewDeschedulerServer creates a new DeschedulerServer with default parameters
-func NewDeschedulerServer() *DeschedulerServer {
-	versioned := v1alpha1.DeschedulerConfiguration{}
-	deschedulerscheme.Scheme.Default(&versioned)
-	cfg := componentconfig.DeschedulerConfiguration{}
-	deschedulerscheme.Scheme.Convert(versioned, &cfg, nil)
-	s := DeschedulerServer{
-		DeschedulerConfiguration: cfg,
+func NewDeschedulerServer() (*DeschedulerServer, error) {
+	cfg, err := newDefaultComponentConfig()
+	if err != nil {
+		return nil, err
 	}
-	return &s
+
+	secureServing := apiserveroptions.NewSecureServingOptions().WithLoopback()
+	secureServing.BindPort = DefaultDeschedulerPort
+
+	return &DeschedulerServer{
+		DeschedulerConfiguration: *cfg,
+		SecureServing:            secureServing,
+	}, nil
+}
+
+func newDefaultComponentConfig() (*componentconfig.DeschedulerConfiguration, error) {
+	versionedCfg := v1alpha1.DeschedulerConfiguration{
+		LeaderElection: componentbaseconfig.LeaderElectionConfiguration{
+			LeaderElect:       false,
+			LeaseDuration:     metav1.Duration{Duration: 137 * time.Second},
+			RenewDeadline:     metav1.Duration{Duration: 107 * time.Second},
+			RetryPeriod:       metav1.Duration{Duration: 26 * time.Second},
+			ResourceLock:      "leases",
+			ResourceName:      "descheduler",
+			ResourceNamespace: "kube-system",
+		},
+	}
+	deschedulerscheme.Scheme.Default(&versionedCfg)
+	cfg := componentconfig.DeschedulerConfiguration{
+		Tracing: componentconfig.TracingConfiguration{},
+	}
+	if err := deschedulerscheme.Scheme.Convert(&versionedCfg, &cfg, nil); err != nil {
+		return nil, err
+	}
+	return &cfg, nil
 }
 
 // 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", 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.ClientConnection.Kubeconfig, "kubeconfig", rs.ClientConnection.Kubeconfig, "File with kube configuration. Deprecated, use client-connection-kubeconfig instead.")
+	fs.StringVar(&rs.ClientConnection.Kubeconfig, "client-connection-kubeconfig", rs.ClientConnection.Kubeconfig, "File path to kube configuration for interacting with kubernetes apiserver.")
+	fs.Float32Var(&rs.ClientConnection.QPS, "client-connection-qps", rs.ClientConnection.QPS, "QPS to use for interacting with kubernetes apiserver.")
+	fs.Int32Var(&rs.ClientConnection.Burst, "client-connection-burst", rs.ClientConnection.Burst, "Burst to use for interacting with kubernetes apiserver.")
 	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")
+	fs.BoolVar(&rs.DryRun, "dry-run", rs.DryRun, "Execute descheduler in dry run mode.")
+	fs.BoolVar(&rs.DisableMetrics, "disable-metrics", rs.DisableMetrics, "Disables metrics. The metrics are by default served through https://localhost:10258/metrics. Secure address, resp. port can be changed through --bind-address, resp. --secure-port flags.")
+	fs.StringVar(&rs.Tracing.CollectorEndpoint, "otel-collector-endpoint", "", "Set this flag to the OpenTelemetry Collector Service Address")
+	fs.StringVar(&rs.Tracing.TransportCert, "otel-transport-ca-cert", "", "Path of the CA Cert that can be used to generate the client Certificate for establishing secure connection to the OTEL in gRPC mode")
+	fs.StringVar(&rs.Tracing.ServiceName, "otel-service-name", tracing.DefaultServiceName, "OTEL Trace name to be used with the resources")
+	fs.StringVar(&rs.Tracing.ServiceNamespace, "otel-trace-namespace", "", "OTEL Trace namespace to be used with the resources")
+	fs.Float64Var(&rs.Tracing.SampleRate, "otel-sample-rate", 1.0, "Sample rate to collect the Traces")
+	fs.BoolVar(&rs.Tracing.FallbackToNoOpProviderOnError, "otel-fallback-no-op-on-error", false, "Fallback to NoOp Tracer in case of error")
+	fs.BoolVar(&rs.EnableHTTP2, "enable-http2", false, "If http/2 should be enabled for the metrics and health check")
+
+	componentbaseoptions.BindLeaderElectionFlags(&rs.LeaderElection, fs)
+
+	rs.SecureServing.AddFlags(fs)
 }

cmd/descheduler/app/server.go

@@ -18,44 +18,110 @@ limitations under the License.
 package app
 
 import (
-	"flag"
+	"context"
 	"io"
+	"os/signal"
+	"syscall"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app/options"
-	"github.com/kubernetes-incubator/descheduler/pkg/descheduler"
+	"k8s.io/apiserver/pkg/server/healthz"
+
+	"sigs.k8s.io/descheduler/cmd/descheduler/app/options"
+	"sigs.k8s.io/descheduler/pkg/descheduler"
+	"sigs.k8s.io/descheduler/pkg/tracing"
 
-	"github.com/golang/glog"
 	"github.com/spf13/cobra"
 
-	aflag "k8s.io/apiserver/pkg/util/flag"
-	"k8s.io/apiserver/pkg/util/logs"
+	"k8s.io/apimachinery/pkg/util/runtime"
+	"k8s.io/apimachinery/pkg/watch"
+	apiserver "k8s.io/apiserver/pkg/server"
+	"k8s.io/apiserver/pkg/server/mux"
+	restclient "k8s.io/client-go/rest"
+	"k8s.io/component-base/featuregate"
+	"k8s.io/component-base/logs"
+	logsapi "k8s.io/component-base/logs/api/v1"
+	_ "k8s.io/component-base/logs/json/register"
+	"k8s.io/component-base/metrics/legacyregistry"
+	"k8s.io/klog/v2"
 )
 
 // NewDeschedulerCommand creates a *cobra.Command object with default parameters
 func NewDeschedulerCommand(out io.Writer) *cobra.Command {
-	s := options.NewDeschedulerServer()
+	s, err := options.NewDeschedulerServer()
+	if err != nil {
+		klog.ErrorS(err, "unable to initialize server")
+	}
+
+	featureGate := featuregate.NewFeatureGate()
+	logConfig := logsapi.NewLoggingConfiguration()
+
 	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) {
+		Long:  "The descheduler evicts pods which may be bound to less desired nodes",
+		PreRunE: func(cmd *cobra.Command, args []string) error {
 			logs.InitLogs()
-			defer logs.FlushLogs()
-			err := Run(s)
-			if err != nil {
-				glog.Errorf("%v", err)
+			if logsapi.ValidateAndApply(logConfig, featureGate); err != nil {
+				return err
 			}
+			descheduler.SetupPlugins()
+			return nil
+		},
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// loopbackClientConfig is a config for a privileged loopback connection
+			var loopbackClientConfig *restclient.Config
+			var secureServing *apiserver.SecureServingInfo
+			if err := s.SecureServing.ApplyTo(&secureServing, &loopbackClientConfig); err != nil {
+				klog.ErrorS(err, "failed to apply secure server configuration")
+				return err
+			}
+
+			secureServing.DisableHTTP2 = !s.EnableHTTP2
+
+			ctx, done := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+
+			pathRecorderMux := mux.NewPathRecorderMux("descheduler")
+			if !s.DisableMetrics {
+				pathRecorderMux.Handle("/metrics", legacyregistry.HandlerWithReset())
+			}
+
+			healthz.InstallHandler(pathRecorderMux, healthz.NamedCheck("Descheduler", healthz.PingHealthz.Check))
+
+			stoppedCh, _, err := secureServing.Serve(pathRecorderMux, 0, ctx.Done())
+			if err != nil {
+				klog.Fatalf("failed to start secure server: %v", err)
+				return err
+			}
+
+			if err = Run(ctx, s); err != nil {
+				klog.ErrorS(err, "descheduler server")
+				return err
+			}
+
+			done()
+			// wait for metrics server to close
+			<-stoppedCh
+
+			return nil
 		},
 	}
-	cmd.SetOutput(out)
-
+	cmd.SetOut(out)
 	flags := cmd.Flags()
-	flags.SetNormalizeFunc(aflag.WordSepNormalizeFunc)
-	flags.AddGoFlagSet(flag.CommandLine)
 	s.AddFlags(flags)
+
+	runtime.Must(logsapi.AddFeatureGates(featureGate))
+	logsapi.AddFlags(logConfig, flags)
+
 	return cmd
 }
 
-func Run(rs *options.DeschedulerServer) error {
-	return descheduler.Run(rs)
+func Run(ctx context.Context, rs *options.DeschedulerServer) error {
+	err := tracing.NewTracerProvider(ctx, rs.Tracing.CollectorEndpoint, rs.Tracing.TransportCert, rs.Tracing.ServiceName, rs.Tracing.ServiceNamespace, rs.Tracing.SampleRate, rs.Tracing.FallbackToNoOpProviderOnError)
+	if err != nil {
+		return err
+	}
+	defer tracing.Shutdown(ctx)
+	// increase the fake watch channel so the dry-run mode can be run
+	// over a cluster with thousands of pods
+	watch.DefaultChanSize = 100000
+	return descheduler.Run(ctx, rs)
 }

cmd/descheduler/app/version.go

@@ -18,69 +18,19 @@ package app
 
 import (
 	"fmt"
+
 	"github.com/spf13/cobra"
-	"runtime"
-	"strings"
+	"sigs.k8s.io/descheduler/pkg/version"
 )
 
-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{
+	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())
+			fmt.Printf("Descheduler version %+v\n", version.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

@@ -17,20 +17,17 @@ limitations under the License.
 package main
 
 import (
-	"flag"
-	"fmt"
 	"os"
 
-	"github.com/kubernetes-incubator/descheduler/cmd/descheduler/app"
+	"k8s.io/component-base/cli"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app"
 )
 
 func main() {
 	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 := cli.Run(cmd)
+	os.Exit(code)
 }

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/cli/descheduler.md

@@ -0,0 +1,65 @@
+## descheduler
+
+descheduler
+
+### Synopsis
+
+The descheduler evicts pods which may be bound to less desired nodes
+
+```
+descheduler [flags]
+```
+
+### Options
+
+```
+      --bind-address ip                          The IP address on which to listen for the --secure-port port. The associated interface(s) must be reachable by the rest of the cluster, and by CLI/web clients. If blank or an unspecified address (0.0.0.0 or ::), all interfaces and IP address families will be used. (default 0.0.0.0)
+      --cert-dir string                          The directory where the TLS certs are located. If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored. (default "apiserver.local.config/certificates")
+      --client-connection-burst int32            Burst to use for interacting with kubernetes apiserver.
+      --client-connection-kubeconfig string      File path to kube configuration for interacting with kubernetes apiserver.
+      --client-connection-qps float32            QPS to use for interacting with kubernetes apiserver.
+      --descheduling-interval duration           Time interval between two consecutive descheduler executions. Setting this value instructs the descheduler to run in a continuous loop at the interval specified.
+      --disable-metrics                          Disables metrics. The metrics are by default served through https://localhost:10258/metrics. Secure address, resp. port can be changed through --bind-address, resp. --secure-port flags.
+      --dry-run                                  Execute descheduler in dry run mode.
+      --enable-http2                             If http/2 should be enabled for the metrics and health check
+  -h, --help                                     help for descheduler
+      --http2-max-streams-per-connection int     The limit that the server gives to clients for the maximum number of streams in an HTTP/2 connection. Zero means to use golang's default.
+      --kubeconfig string                        File with kube configuration. Deprecated, use client-connection-kubeconfig instead.
+      --leader-elect                             Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability.
+      --leader-elect-lease-duration duration     The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is replaced by another candidate. This is only applicable if leader election is enabled. (default 2m17s)
+      --leader-elect-renew-deadline duration     The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than the lease duration. This is only applicable if leader election is enabled. (default 1m47s)
+      --leader-elect-resource-lock string        The type of resource object that is used for locking during leader election. Supported options are 'leases', 'endpointsleases' and 'configmapsleases'. (default "leases")
+      --leader-elect-resource-name string        The name of resource object that is used for locking during leader election. (default "descheduler")
+      --leader-elect-resource-namespace string   The namespace of resource object that is used for locking during leader election. (default "kube-system")
+      --leader-elect-retry-period duration       The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. (default 26s)
+      --log-flush-frequency duration             Maximum number of seconds between log flushes (default 5s)
+      --log-json-info-buffer-size quantity       [Alpha] In JSON format with split output streams, the info messages can be buffered for a while to increase performance. The default value of zero bytes disables buffering. The size can be specified as number of bytes (512), multiples of 1000 (1K), multiples of 1024 (2Ki), or powers of those (3M, 4G, 5Mi, 6Gi). Enable the LoggingAlphaOptions feature gate to use this.
+      --log-json-split-stream                    [Alpha] In JSON format, write error messages to stderr and info messages to stdout. The default is to write a single stream to stdout. Enable the LoggingAlphaOptions feature gate to use this.
+      --log-text-info-buffer-size quantity       [Alpha] In text format with split output streams, the info messages can be buffered for a while to increase performance. The default value of zero bytes disables buffering. The size can be specified as number of bytes (512), multiples of 1000 (1K), multiples of 1024 (2Ki), or powers of those (3M, 4G, 5Mi, 6Gi). Enable the LoggingAlphaOptions feature gate to use this.
+      --log-text-split-stream                    [Alpha] In text format, write error messages to stderr and info messages to stdout. The default is to write a single stream to stdout. Enable the LoggingAlphaOptions feature gate to use this.
+      --logging-format string                    Sets the log format. Permitted formats: "json" (gated by LoggingBetaOptions), "text". (default "text")
+      --otel-collector-endpoint string           Set this flag to the OpenTelemetry Collector Service Address
+      --otel-fallback-no-op-on-error             Fallback to NoOp Tracer in case of error
+      --otel-sample-rate float                   Sample rate to collect the Traces (default 1)
+      --otel-service-name string                 OTEL Trace name to be used with the resources (default "descheduler")
+      --otel-trace-namespace string              OTEL Trace namespace to be used with the resources
+      --otel-transport-ca-cert string            Path of the CA Cert that can be used to generate the client Certificate for establishing secure connection to the OTEL in gRPC mode
+      --permit-address-sharing                   If true, SO_REUSEADDR will be used when binding the port. This allows binding to wildcard IPs like 0.0.0.0 and specific IPs in parallel, and it avoids waiting for the kernel to release sockets in TIME_WAIT state. [default=false]
+      --permit-port-sharing                      If true, SO_REUSEPORT will be used when binding the port, which allows more than one instance to bind on the same address and port. [default=false]
+      --policy-config-file string                File with descheduler policy configuration.
+      --secure-port int                          The port on which to serve HTTPS with authentication and authorization. If 0, don't serve HTTPS at all. (default 10258)
+      --tls-cert-file string                     File containing the default x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). If HTTPS serving is enabled, and --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key are generated for the public address and saved to the directory specified by --cert-dir.
+      --tls-cipher-suites strings                Comma-separated list of cipher suites for the server. If omitted, the default Go cipher suites will be used. 
+                                                 Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256. 
+                                                 Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_RC4_128_SHA.
+      --tls-min-version string                   Minimum TLS version supported. Possible values: VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13
+      --tls-private-key-file string              File containing the default x509 private key matching --tls-cert-file.
+      --tls-sni-cert-key namedCertKey            A pair of x509 certificate and private key file paths, optionally suffixed with a list of domain patterns which are fully qualified domain names, possibly with prefixed wildcard segments. The domain patterns also allow IP addresses, but IPs should only be used if the apiserver has visibility to the IP address requested by a client. If no domain patterns are provided, the names of the certificate are extracted. Non-wildcard matches trump over wildcard matches, explicit domain patterns trump over extracted names. For multiple key/certificate pairs, use the --tls-sni-cert-key multiple times. Examples: "example.crt,example.key" or "foo.crt,foo.key:*.foo.com,foo.com". (default [])
+  -v, --v Level                                  number for the log level verbosity
+      --vmodule pattern=N,...                    comma-separated list of pattern=N settings for file-filtered logging (only works for text log format)
+```
+
+### SEE ALSO
+
+* [descheduler version](descheduler_version.md)	 - Version of descheduler
+

docs/cli/descheduler_version.md

@@ -0,0 +1,22 @@
+## descheduler version
+
+Version of descheduler
+
+### Synopsis
+
+Prints the version of descheduler.
+
+```
+descheduler version [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for version
+```
+
+### SEE ALSO
+
+* [descheduler](descheduler.md)	 - descheduler
+

docs/contributor-guide.md

@@ -0,0 +1,77 @@
+# Contributor Guide
+
+## Required Tools
+
+- [Git](https://git-scm.com/downloads)
+- [Go 1.16+](https://golang.org/dl/)
+- [Docker](https://docs.docker.com/install/)
+- [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl)
+- [kind v0.10.0+](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 --client-connection-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
+make kind-multi-node
+kind load docker-image <image name>
+kind get kubeconfig > /tmp/admin.conf
+export KUBECONFIG=/tmp/admin.conf
+make test-unit
+make test-e2e
+```
+
+## Format Code
+
+After making changes in the code base, ensure that the code is formatted correctly:
+
+```
+make fmt
+```
+
+## Build Helm Package locally
+
+If you made some changes in the chart, and just want to check if templating is ok, or if the chart is buildable, you can run this command to have a package built from the `./charts` directory.
+
+```
+make build-helm
+```
+
+## Lint Helm Chart locally
+
+To check linting of your changes in the helm chart locally you can run:
+
+```
+make lint-chart
+```
+
+## Test helm changes locally with kind and ct
+
+You will need kind and docker (or equivalent) installed. We can use ct public image to avoid installing ct and all its dependencies.
+
+
+```
+make kind-multi-node
+make ct-helm
+```
+
+### Miscellaneous
+See the [hack directory](https://github.com/kubernetes-sigs/descheduler/tree/master/hack) for additional tools and scripts used for developing the descheduler.

docs/deprecated/v1alpha1.md

@@ -0,0 +1,786 @@
+[![Go Report Card](https://goreportcard.com/badge/sigs.k8s.io/descheduler)](https://goreportcard.com/report/sigs.k8s.io/descheduler)
+![Release Charts](https://github.com/kubernetes-sigs/descheduler/workflows/Release%20Charts/badge.svg)
+
+<p align="center">
+    <img src="assets/logo/descheduler-stacked-color.png" width="40%" align="center" alt="descheduler">
+</p>
+
+# Descheduler for Kubernetes
+
+Scheduling in Kubernetes is the process of binding pending pods to nodes, and is performed by
+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 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.
+* The original scheduling decision does not hold true any more, as taints or labels are added to
+or removed from nodes, pod/node affinity requirements are not satisfied any more.
+* Some nodes failed and their pods moved to other nodes.
+* New nodes are added to clusters.
+
+Consequently, there might be several pods scheduled on less desired nodes in a cluster.
+Descheduler, based on its policy, finds pods that can be moved and evicts them. Please
+note, in current implementation, descheduler does not schedule replacement of evicted pods
+but relies on the default scheduler for that.
+
+Table of Contents
+=================
+<!-- toc -->
+- [Quick Start](#quick-start)
+  - [Run As A Job](#run-as-a-job)
+  - [Run As A CronJob](#run-as-a-cronjob)
+  - [Run As A Deployment](#run-as-a-deployment)
+  - [Install Using Helm](#install-using-helm)
+  - [Install Using Kustomize](#install-using-kustomize)
+- [User Guide](#user-guide)
+- [Policy and Strategies](#policy-and-strategies)
+  - [RemoveDuplicates](#removeduplicates)
+  - [LowNodeUtilization](#lownodeutilization)
+  - [HighNodeUtilization](#highnodeutilization)
+  - [RemovePodsViolatingInterPodAntiAffinity](#removepodsviolatinginterpodantiaffinity)
+  - [RemovePodsViolatingNodeAffinity](#removepodsviolatingnodeaffinity)
+  - [RemovePodsViolatingNodeTaints](#removepodsviolatingnodetaints)
+  - [RemovePodsViolatingTopologySpreadConstraint](#removepodsviolatingtopologyspreadconstraint)
+  - [RemovePodsHavingTooManyRestarts](#removepodshavingtoomanyrestarts)
+  - [PodLifeTime](#podlifetime)
+  - [RemoveFailedPods](#removefailedpods)
+- [Filter Pods](#filter-pods)
+  - [Namespace filtering](#namespace-filtering)
+  - [Priority filtering](#priority-filtering)
+  - [Label filtering](#label-filtering)
+  - [Node Fit filtering](#node-fit-filtering)
+- [Pod Evictions](#pod-evictions)
+  - [Pod Disruption Budget (PDB)](#pod-disruption-budget-pdb)
+- [High Availability](#high-availability)
+  - [Configure HA Mode](#configure-ha-mode)
+- [Metrics](#metrics)
+- [Compatibility Matrix](#compatibility-matrix)
+- [Getting Involved and Contributing](#getting-involved-and-contributing)
+  - [Communicating With Contributors](#communicating-with-contributors)
+- [Roadmap](#roadmap)
+  - [Code of conduct](#code-of-conduct)
+<!-- /toc -->
+
+## Quick Start
+
+The descheduler can be run as a `Job`, `CronJob`, or `Deployment` 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.
+
+### Run As A Job
+
+```
+kubectl create -f kubernetes/base/rbac.yaml
+kubectl create -f kubernetes/base/configmap.yaml
+kubectl create -f kubernetes/job/job.yaml
+```
+
+### Run As A CronJob
+
+```
+kubectl create -f kubernetes/base/rbac.yaml
+kubectl create -f kubernetes/base/configmap.yaml
+kubectl create -f kubernetes/cronjob/cronjob.yaml
+```
+
+### Run As A Deployment
+
+```
+kubectl create -f kubernetes/base/rbac.yaml
+kubectl create -f kubernetes/base/configmap.yaml
+kubectl create -f kubernetes/deployment/deployment.yaml
+```
+
+### Install Using Helm
+
+Starting with release v0.18.0 there is an official helm chart that can be used to install the
+descheduler. See the [helm chart README](https://github.com/kubernetes-sigs/descheduler/blob/master/charts/descheduler/README.md) for detailed instructions.
+
+The descheduler helm chart is also listed on the [artifact hub](https://artifacthub.io/packages/helm/descheduler/descheduler).
+
+### Install Using Kustomize
+
+You can use kustomize to install descheduler.
+See the [resources | Kustomize](https://kubectl.docs.kubernetes.io/references/kustomize/cmd/build/) for detailed instructions.
+
+Run As A Job
+```
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/job?ref=v0.30.0' | kubectl apply -f -
+```
+
+Run As A CronJob
+```
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/cronjob?ref=v0.30.0' | kubectl apply -f -
+```
+
+Run As A Deployment
+```
+kustomize build 'github.com/kubernetes-sigs/descheduler/kubernetes/deployment?ref=v0.30.0' | kubectl apply -f -
+```
+
+## 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 that can be enabled or disabled. By default, all strategies are enabled.
+
+The policy includes a common configuration that applies to all the strategies:
+| Name | Default Value | Description |
+|------|---------------|-------------|
+| `nodeSelector` | `nil` | limiting the nodes which are processed |
+| `evictLocalStoragePods` | `false` | allows eviction of pods with local storage |
+| `evictDaemonSetPods` | `false` | allows eviction of pods associated to DaemonSet resources |
+| `evictSystemCriticalPods` | `false` | [Warning: Will evict Kubernetes system pods] allows eviction of pods with any priority, including system pods like kube-dns |
+| `ignorePvcPods` | `false` | set whether PVC pods should be evicted or ignored |
+| `maxNoOfPodsToEvictPerNode` | `nil` | maximum number of pods evicted from each node (summed through all strategies) |
+| `maxNoOfPodsToEvictPerNamespace` | `nil` | maximum number of pods evicted from each namespace (summed through all strategies) |
+| `evictFailedBarePods` | `false` | allow eviction of pods without owner references and in failed phase |
+
+As part of the policy, the parameters associated with each strategy can be configured.
+See each strategy for details on available parameters.
+
+**Policy:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+nodeSelector: prod=dev
+evictFailedBarePods: false
+evictLocalStoragePods: true
+evictDaemonSetPods: true
+evictSystemCriticalPods: true
+maxNoOfPodsToEvictPerNode: 40
+ignorePvcPods: false
+strategies:
+  ...
+```
+
+The following diagram provides a visualization of most of the strategies to help
+categorize how strategies fit together.
+
+![Strategies diagram](strategies_diagram.png)
+
+### RemoveDuplicates
+
+This strategy makes sure that there is only one pod associated with a ReplicaSet (RS),
+ReplicationController (RC), StatefulSet, 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 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. Note that
+pods created by Deployments are considered for eviction by this strategy. The `excludeOwnerKinds` parameter
+should include `ReplicaSet` to have pods created by Deployments excluded.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`excludeOwnerKinds`|list(string)|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemoveDuplicates":
+     enabled: true
+     params:
+       removeDuplicates:
+         excludeOwnerKinds:
+         - "ReplicaSet"
+```
+
+### LowNodeUtilization
+
+This strategy finds nodes that are under utilized and evicts pods, if possible, from other nodes
+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
+`thresholds` can be configured for cpu, memory, number of pods, and extended resources in terms of percentage (the percentage is
+calculated as the current resources requested on the node vs [total allocatable](https://kubernetes.io/docs/concepts/architecture/nodes/#capacity).
+For pods, this means the number of pods on the node as a fraction of the pod capacity set for that node).
+
+If a node's usage is below threshold for all (cpu, memory, number of pods and extended resources), the node is considered underutilized.
+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. If a node's usage is above targetThreshold for any (cpu, memory, number of pods, or extended resources),
+the node is considered over utilized. Any node between the thresholds, `thresholds` and `targetThresholds` is
+considered appropriately utilized and is not considered for eviction. The threshold, `targetThresholds`,
+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. Note that this
+strategy evicts pods from `overutilized nodes` (those with usage above `targetThresholds`) to `underutilized nodes`
+(those with usage below `thresholds`), it will abort if any number of `underutilized nodes` or `overutilized nodes` is zero.
+
+Additionally, the strategy accepts a `useDeviationThresholds` parameter.
+If that parameter is set to `true`, the thresholds are considered as percentage deviations from mean resource usage.
+`thresholds` will be deducted from the mean among all nodes and `targetThresholds` will be added to the mean.
+A resource consumption above (resp. below) this window is considered as overutilization (resp. underutilization).
+
+**NOTE:** Node resource consumption is determined by the requests and limits of pods, not actual usage.
+This approach is chosen in order to maintain consistency with the kube-scheduler, which follows the same
+design for scheduling pods onto nodes. This means that resource usage as reported by Kubelet (or commands
+like `kubectl top`) may differ from the calculated consumption, due to these components reporting
+actual usage metrics. Implementing metrics-based descheduling is currently TODO for the project.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`thresholds`|map(string:int)|
+|`targetThresholds`|map(string:int)|
+|`numberOfNodes`|int|
+|`useDeviationThresholds`|bool|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+|`Namespaces`|(see [namespace filtering](#namespace-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "LowNodeUtilization":
+     enabled: true
+     params:
+       nodeResourceUtilizationThresholds:
+         thresholds:
+           "cpu" : 20
+           "memory": 20
+           "pods": 20
+         targetThresholds:
+           "cpu" : 50
+           "memory": 50
+           "pods": 50
+```
+
+Policy should pass the following validation checks:
+* Three basic native types of resources are supported: `cpu`, `memory` and `pods`.
+If any of these resource types is not specified, all its thresholds default to 100% to avoid nodes going from underutilized to overutilized.
+* Extended resources are supported. For example, resource type `nvidia.com/gpu` is specified for GPU node utilization. Extended resources are optional,
+and will not be used to compute node's usage if it's not specified in `thresholds` and `targetThresholds` explicitly.
+* `thresholds` or `targetThresholds` can not be nil and they must configure exactly the same types of resources.
+* The valid range of the resource's percentage value is \[0, 100\]
+* Percentage value of `thresholds` can not be greater than `targetThresholds` for the same resource.
+
+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.
+
+### HighNodeUtilization
+
+This strategy finds nodes that are under utilized and evicts pods from the nodes in the hope that these pods will be
+scheduled compactly into fewer nodes.  Used in conjunction with node auto-scaling, this strategy is intended to help
+trigger down scaling of under utilized nodes.
+This strategy **must** be used with the scheduler scoring strategy `MostAllocated`. The parameters of this strategy are
+configured under `nodeResourceUtilizationThresholds`.
+
+The under utilization of nodes is determined by a configurable threshold `thresholds`. The threshold
+`thresholds` can be configured for cpu, memory, number of pods, and extended resources in terms of percentage. The percentage is
+calculated as the current resources requested on the node vs [total allocatable](https://kubernetes.io/docs/concepts/architecture/nodes/#capacity).
+For pods, this means the number of pods on the node as a fraction of the pod capacity set for that node.
+
+If a node's usage is below threshold for all (cpu, memory, number of pods and extended resources), the node is considered underutilized.
+Currently, pods request resource requirements are considered for computing node resource utilization.
+Any node above `thresholds` is considered appropriately utilized and is not considered for eviction.
+
+The `thresholds` param could be tuned as per your cluster requirements. Note that this
+strategy evicts pods from `underutilized nodes` (those with usage below `thresholds`)
+so that they can be recreated in appropriately utilized nodes.
+The strategy will abort if any number of `underutilized nodes` or `appropriately utilized nodes` is zero.
+
+**NOTE:** Node resource consumption is determined by the requests and limits of pods, not actual usage.
+This approach is chosen in order to maintain consistency with the kube-scheduler, which follows the same
+design for scheduling pods onto nodes. This means that resource usage as reported by Kubelet (or commands
+like `kubectl top`) may differ from the calculated consumption, due to these components reporting
+actual usage metrics. Implementing metrics-based descheduling is currently TODO for the project.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`thresholds`|map(string:int)|
+|`numberOfNodes`|int|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+|`Namespaces`|(see [namespace filtering](#namespace-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "HighNodeUtilization":
+     enabled: true
+     params:
+       nodeResourceUtilizationThresholds:
+         thresholds:
+           "cpu" : 20
+           "memory": 20
+           "pods": 20
+```
+
+Policy should pass the following validation checks:
+* Three basic native types of resources are supported: `cpu`, `memory` and `pods`. If any of these resource types is not specified, all its thresholds default to 100%.
+* Extended resources are supported. For example, resource type `nvidia.com/gpu` is specified for GPU node utilization. Extended resources are optional, and will not be used to compute node's usage if it's not specified in `thresholds` explicitly.
+* `thresholds` can not be nil.
+* The valid range of the resource's percentage value is \[0, 100\]
+
+There is another parameter associated with the `HighNodeUtilization` strategy, called `numberOfNodes`.
+This parameter can be configured to activate the strategy only when the number of under utilized nodes
+is 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.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingInterPodAntiAffinity":
+     enabled: true
+```
+
+### 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.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`nodeAffinityType`|list(string)|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+```yaml
+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.
+
+Node taints can be excluded from consideration by specifying a list of excludedTaints. If a node taint key **or**
+key=value matches an excludedTaints entry, the taint will be ignored.
+
+For example, excludedTaints entry "dedicated" would match all taints with key "dedicated", regardless of value.
+excludedTaints entry "dedicated=special-user" would match taints with key "dedicated" and value "special-user".
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`excludedTaints`|list(string)|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+````yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingNodeTaints":
+    enabled: true
+    params:
+      excludedTaints:
+      - dedicated=special-user # exclude taints with key "dedicated" and value "special-user"
+      - reserved # exclude all taints with key "reserved"
+````
+
+### RemovePodsViolatingTopologySpreadConstraint
+
+This strategy makes sure that pods violating [topology spread constraints](https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/)
+are evicted from nodes. Specifically, it tries to evict the minimum number of pods required to balance topology domains to within each constraint's `maxSkew`.
+This strategy requires k8s version 1.18 at a minimum.
+
+By default, this strategy only deals with hard constraints, setting parameter `includeSoftConstraints` to `true` will
+include soft constraints.
+
+Strategy parameter `labelSelector` is not utilized when balancing topology domains and is only applied during eviction to determine if the pod can be evicted.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`includeSoftConstraints`|bool|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsViolatingTopologySpreadConstraint":
+     enabled: true
+     params:
+       includeSoftConstraints: false
+```
+
+
+### 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. Its parameters
+include `podRestartThreshold`, which is the number of restarts (summed over all eligible containers) at which a pod
+should be evicted, and `includingInitContainers`, which determines whether init container restarts should be factored
+into that calculation.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`podRestartThreshold`|int|
+|`includingInitContainers`|bool|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemovePodsHavingTooManyRestarts":
+     enabled: true
+     params:
+       podsHavingTooManyRestarts:
+         podRestartThreshold: 100
+         includingInitContainers: true
+```
+
+### PodLifeTime
+
+This strategy evicts pods that are older than `maxPodLifeTimeSeconds`.
+
+You can also specify `states` parameter to **only** evict pods matching the following conditions:
+  - [Pod Phase](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#pod-phase) status of: `Running`, `Pending`
+  - [Container State Waiting](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-state-waiting) condition of: `PodInitializing`, `ContainerCreating`
+
+If a value for `states` or `podStatusPhases` is not specified,
+Pods in any state (even `Running`) are considered for eviction.
+
+**Parameters:**
+
+|Name|Type|Notes|
+|---|---|---|
+|`maxPodLifeTimeSeconds`|int||
+|`podStatusPhases`|list(string)|Deprecated in v0.25+ Use `states` instead|
+|`states`|list(string)|Only supported in v0.25+|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))||
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))||
+|`namespaces`|(see [namespace filtering](#namespace-filtering))||
+|`labelSelector`|(see [label filtering](#label-filtering))||
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+       podLifeTime:
+         maxPodLifeTimeSeconds: 86400
+         states:
+         - "Pending"
+         - "PodInitializing"
+```
+
+### RemoveFailedPods
+
+This strategy evicts pods that are in failed status phase.
+You can provide an optional parameter to filter by failed `reasons`.
+`reasons` can be expanded to include reasons of InitContainers as well by setting the optional parameter `includingInitContainers` to `true`.
+You can specify an optional parameter `minPodLifetimeSeconds` to evict pods that are older than specified seconds.
+Lastly, you can specify the optional parameter `excludeOwnerKinds` and if a pod
+has any of these `Kind`s listed as an `OwnerRef`, that pod will not be considered for eviction.
+
+**Parameters:**
+
+|Name|Type|
+|---|---|
+|`minPodLifetimeSeconds`|uint|
+|`excludeOwnerKinds`|list(string)|
+|`reasons`|list(string)|
+|`includingInitContainers`|bool|
+|`thresholdPriority`|int (see [priority filtering](#priority-filtering))|
+|`thresholdPriorityClassName`|string (see [priority filtering](#priority-filtering))|
+|`namespaces`|(see [namespace filtering](#namespace-filtering))|
+|`labelSelector`|(see [label filtering](#label-filtering))|
+|`nodeFit`|bool (see [node fit filtering](#node-fit-filtering))|
+
+**Example:**
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "RemoveFailedPods":
+     enabled: true
+     params:
+       failedPods:
+         reasons:
+         - "NodeAffinity"
+         includingInitContainers: true
+         excludeOwnerKinds:
+         - "Job"
+         minPodLifetimeSeconds: 3600
+```
+
+## Filter Pods
+
+### Namespace filtering
+
+The following strategies accept a `namespaces` parameter which allows to specify a list of including, resp. excluding namespaces:
+* `PodLifeTime`
+* `RemovePodsHavingTooManyRestarts`
+* `RemovePodsViolatingNodeTaints`
+* `RemovePodsViolatingNodeAffinity`
+* `RemovePodsViolatingInterPodAntiAffinity`
+* `RemoveDuplicates`
+* `RemovePodsViolatingTopologySpreadConstraint`
+* `RemoveFailedPods`
+* `LowNodeUtilization` and `HighNodeUtilization` (Only filtered right before eviction)
+
+For example:
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+        podLifeTime:
+          maxPodLifeTimeSeconds: 86400
+        namespaces:
+          include:
+          - "namespace1"
+          - "namespace2"
+```
+
+In the examples `PodLifeTime` gets executed only over `namespace1` and `namespace2`.
+The similar holds for `exclude` field:
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+        podLifeTime:
+          maxPodLifeTimeSeconds: 86400
+        namespaces:
+          exclude:
+          - "namespace1"
+          - "namespace2"
+```
+
+The strategy gets executed over all namespaces but `namespace1` and `namespace2`.
+
+It's not allowed to compute `include` with `exclude` field.
+
+### Priority filtering
+
+All strategies are able to configure a priority threshold, only pods under the threshold can be evicted. You can
+specify this threshold by setting `thresholdPriorityClassName`(setting the threshold to the value of the given
+priority class) or `thresholdPriority`(directly setting the threshold) parameters. By default, this threshold
+is set to the value of `system-cluster-critical` priority class.
+
+Note: Setting `evictSystemCriticalPods` to true disables priority filtering entirely.
+
+E.g.
+
+Setting `thresholdPriority`
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+        podLifeTime:
+          maxPodLifeTimeSeconds: 86400
+        thresholdPriority: 10000
+```
+
+Setting `thresholdPriorityClassName`
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+     enabled: true
+     params:
+        podLifeTime:
+          maxPodLifeTimeSeconds: 86400
+        thresholdPriorityClassName: "priorityclass1"
+```
+
+Note that you can't configure both `thresholdPriority` and `thresholdPriorityClassName`, if the given priority class
+does not exist, descheduler won't create it and will throw an error.
+
+### Label filtering
+
+The following strategies can configure a [standard kubernetes labelSelector](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.26/#labelselector-v1-meta)
+to filter pods by their labels:
+
+* `PodLifeTime`
+* `RemovePodsHavingTooManyRestarts`
+* `RemovePodsViolatingNodeTaints`
+* `RemovePodsViolatingNodeAffinity`
+* `RemovePodsViolatingInterPodAntiAffinity`
+* `RemovePodsViolatingTopologySpreadConstraint`
+* `RemoveFailedPods`
+
+This allows running strategies among pods the descheduler is interested in.
+
+For example:
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "PodLifeTime":
+    enabled: true
+    params:
+      podLifeTime:
+        maxPodLifeTimeSeconds: 86400
+      labelSelector:
+        matchLabels:
+          component: redis
+        matchExpressions:
+          - {key: tier, operator: In, values: [cache]}
+          - {key: environment, operator: NotIn, values: [dev]}
+```
+
+
+### Node Fit filtering
+
+The following strategies accept a `nodeFit` boolean parameter which can optimize descheduling:
+* `RemoveDuplicates`
+* `LowNodeUtilization`
+* `HighNodeUtilization`
+* `RemovePodsViolatingInterPodAntiAffinity`
+* `RemovePodsViolatingNodeAffinity`
+* `RemovePodsViolatingNodeTaints`
+* `RemovePodsViolatingTopologySpreadConstraint`
+* `RemovePodsHavingTooManyRestarts`
+* `RemoveFailedPods`
+
+ If set to `true` the descheduler will consider whether or not the pods that meet eviction criteria will fit on other nodes before evicting them. If a pod cannot be rescheduled to another node, it will not be evicted. Currently the following criteria are considered when setting `nodeFit` to `true`:
+- A `nodeSelector` on the pod
+- Any `tolerations` on the pod and any `taints` on the other nodes
+- `nodeAffinity` on the pod
+- Resource `requests` made by the pod and the resources available on other nodes
+- Whether any of the other nodes are marked as `unschedulable`
+
+E.g.
+
+```yaml
+apiVersion: "descheduler/v1alpha1"
+kind: "DeschedulerPolicy"
+strategies:
+  "LowNodeUtilization":
+    enabled: true
+    params:
+      nodeFit: true
+      nodeResourceUtilizationThresholds:
+        thresholds:
+          "cpu": 20
+          "memory": 20
+          "pods": 20
+        targetThresholds:
+          "cpu": 50
+          "memory": 50
+          "pods": 50
+```
+
+Note that node fit filtering references the current pod spec, and not that of it's owner.
+Thus, if the pod is owned by a ReplicationController (and that ReplicationController was modified recently),
+the pod may be running with an outdated spec, which the descheduler will reference when determining node fit.
+This is expected behavior as the descheduler is a "best-effort" mechanism.
+
+Using Deployments instead of ReplicationControllers provides an automated rollout of pod spec changes, therefore ensuring that the descheduler has an up-to-date view of the cluster state.

docs/proposals.md

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

docs/release-guide.md

@@ -0,0 +1,104 @@
+# Release Guide
+
+The process for publishing each Descheduler release includes a mixture of manual and automatic steps. Over 
+time, it would be good to automate as much of this process as possible. However, due to current limitations there 
+is care that must be taken to perform each manual step precisely so that the automated steps execute properly.
+
+## Pre-release Code Changes
+
+Before publishing each release, the following code updates must be made:
+
+- [ ] (Optional, but recommended) Bump `k8s.io` dependencies to the `-rc` tags. These tags are usually published around upstream code freeze. [Example](https://github.com/kubernetes-sigs/descheduler/pull/539)
+- [ ] Bump `k8s.io` dependencies to GA tags once they are published (following the upstream release). [Example](https://github.com/kubernetes-sigs/descheduler/pull/615)
+- [ ] Ensure that Go is updated to the same version as upstream. [Example](https://github.com/kubernetes-sigs/descheduler/pull/801)
+- [ ] Make CI changes in [github.com/kubernetes/test-infra](https://github.com/kubernetes/test-infra) to add the new version's tests (note, this may also include a Go bump). [Example](https://github.com/kubernetes/test-infra/pull/25833)
+- [ ] Update local CI versions for utils (such as golang-ci), kind, and go. [Example - e2e](https://github.com/kubernetes-sigs/descheduler/commit/ac4d576df8831c0c399ee8fff1e85469e90b8c44), [Example - helm](https://github.com/kubernetes-sigs/descheduler/pull/821)
+- [ ] Update version references in docs and Readme. [Example](https://github.com/kubernetes-sigs/descheduler/pull/617)
+
+## Release Process
+
+When the above pre-release steps are complete and the release is ready to be cut, perform the following steps **in order** 
+(the flowchart below demonstrates these steps):
+
+**Version release**
+1. Create the `git tag` on `master` for the release, eg `v0.24.0`
+2. Merge Helm chart version update to `master` (see [Helm chart](#helm-chart) below). [Example](https://github.com/kubernetes-sigs/descheduler/pull/709)
+3. Perform the [image promotion process](https://github.com/kubernetes/k8s.io/tree/main/k8s.gcr.io#image-promoter). [Example](https://github.com/kubernetes/k8s.io/pull/3344)
+4. Cut release branch from `master`, eg `release-1.24`
+5. Publish release using Github's release process from the git tag you created
+6. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+**Patch release**
+1. Pick relevant code change commits to the matching release branch, eg `release-1.24`
+2. Create the patch tag on the release branch, eg `v0.24.1` on `release-1.24`
+3. Merge Helm chart version update to release branch
+4. Perform the image promotion process for the patch version
+5. Publish release using Github's release process from the git tag you created
+6. Email `kubernetes-sig-scheduling@googlegroups.com` to announce the release
+
+### Flowchart
+
+![Flowchart for major and patch releases](release-process.png)
+
+### Image promotion process
+
+Every merge to any branch triggers an [image build and push](https://github.com/kubernetes/test-infra/blob/c36b8e5/config/jobs/image-pushing/k8s-staging-descheduler.yaml) to a `gcr.io` repository. 
+These automated image builds are snapshots of the code in place at the time of every PR merge and 
+tagged with the latest git SHA at the time of the build. To create a final release image, the desired 
+auto-built image SHA is added to a [file upstream](https://github.com/kubernetes/k8s.io/blob/e9e971c/k8s.gcr.io/images/k8s-staging-descheduler/images.yaml) which 
+copies that image to a public registry.
+
+Automatic builds can be monitored and re-triggered with the [`post-descheduler-push-images` job](https://prow.k8s.io/?job=post-descheduler-push-images) on prow.k8s.io.
+
+Note that images can also be manually built and pushed using `VERSION=$VERSION make push-all` by [users with access](https://github.com/kubernetes/k8s.io/blob/fbee8f67b70304241e613a672c625ad972998ad7/groups/sig-scheduling/groups.yaml#L33-L43).
+
+## Helm Chart
+We currently use the [chart-releaser-action GitHub Action](https://github.com/helm/chart-releaser-action) to automatically 
+publish [Helm chart releases](https://github.com/kubernetes-sigs/descheduler/blob/022e07c/.github/workflows/release.yaml). 
+This action is triggered when it detects any changes to [`Chart.yaml`](https://github.com/kubernetes-sigs/descheduler/blob/022e07c27853fade6d1304adc0a6ebe02642386c/charts/descheduler/Chart.yaml) on 
+a `release-*` branch.
+
+Helm chart releases are managed by a separate set of git tags that are prefixed with `descheduler-helm-chart-*`. Example git tag name is `descheduler-helm-chart-0.18.0`.
+Released versions of the helm charts are stored in the `gh-pages` branch of this repo.
+
+The major and minor version of the chart matches the descheduler major and minor versions. For example descheduler helm chart version helm-descheduler-chart-0.18.0 corresponds
+to descheduler version v0.18.0. The patch version of the descheduler helm chart and the patcher version of the descheduler will not necessarily match. The patch
+version of the descheduler helm chart is used to version changes specific to the helm chart.
+
+1. Merge all helm chart changes into the master branch before the release is tagged/cut
+   1. Ensure that `appVersion` in file `charts/descheduler/Chart.yaml` matches the descheduler version(no `v` prefix)
+   2. Ensure that `version` in file `charts/descheduler/Chart.yaml` has been incremented. This is the chart version.
+2. Make sure your repo is clean by git's standards
+3. Follow the release-branch or patch release tagging pattern from the above section.
+4. Verify the new helm artifact has been successfully pushed to the `gh-pages` branch
+
+## Notes
+The Helm releaser-action compares the changes in the action-triggering branch to the latest tag on that branch, so if you tag before creating the new branch there
+will be nothing to compare and it will fail. This is why it's necessary to tag, eg, `v0.24.0` *before* making the changes to the 
+Helm chart version, so that there is a new diff for the action to find. (Tagging *after* making the Helm chart changes would 
+also work, but then the code that gets built into the promoted image will be tagged as `descheduler-helm-chart-xxx` rather than `v0.xx.0`).
+
+See [post-descheduler-push-images dashboard](https://testgrid.k8s.io/sig-scheduling#post-descheduler-push-images) for staging registry image build job status.
+
+View the descheduler staging registry using [this URL](https://console.cloud.google.com/gcr/images/k8s-staging-descheduler/GLOBAL/descheduler) in a web browser
+or use the below `gcloud` commands.
+
+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
+```

docs/user-guide.md

@@ -0,0 +1,140 @@
+# User Guide
+
+Starting with descheduler release v0.10.0 container images are available in the official k8s container registry.
+
+Descheduler Version | Container Image                                 | Architectures           |
+------------------- |-------------------------------------------------|-------------------------|
+v0.30.0             | registry.k8s.io/descheduler/descheduler:v0.30.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.29.0             | registry.k8s.io/descheduler/descheduler:v0.29.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.28.1             | registry.k8s.io/descheduler/descheduler:v0.28.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.28.0             | registry.k8s.io/descheduler/descheduler:v0.28.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.27.1             | registry.k8s.io/descheduler/descheduler:v0.27.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.27.0             | registry.k8s.io/descheduler/descheduler:v0.27.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.26.1             | registry.k8s.io/descheduler/descheduler:v0.26.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.26.0             | registry.k8s.io/descheduler/descheduler:v0.26.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.25.1             | registry.k8s.io/descheduler/descheduler:v0.25.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.25.0             | registry.k8s.io/descheduler/descheduler:v0.25.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.24.1             | registry.k8s.io/descheduler/descheduler:v0.24.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.24.0             | registry.k8s.io/descheduler/descheduler:v0.24.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.23.1             | registry.k8s.io/descheduler/descheduler:v0.23.1 | AMD64<br>ARM64<br>ARMv7 |
+v0.22.0             | registry.k8s.io/descheduler/descheduler:v0.22.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.21.0             | registry.k8s.io/descheduler/descheduler:v0.21.0 | AMD64<br>ARM64<br>ARMv7 |
+v0.20.0             | registry.k8s.io/descheduler/descheduler:v0.20.0 | AMD64<br>ARM64          |
+v0.19.0             | registry.k8s.io/descheduler/descheduler:v0.19.0 | AMD64                   |
+v0.18.0             | registry.k8s.io/descheduler/descheduler:v0.18.0 | AMD64                   |
+v0.10.0             | registry.k8s.io/descheduler/descheduler:v0.10.0 | AMD64                   |
+
+Note that multi-arch container images cannot be pulled by [kind](https://kind.sigs.k8s.io) from a registry. Therefore
+starting with descheduler release v0.20.0 use the below process to download the official descheduler
+image into a kind cluster.
+```
+kind create cluster
+docker pull registry.k8s.io/descheduler/descheduler:v0.20.0
+kind load docker-image registry.k8s.io/descheduler/descheduler:v0.20.0
+```
+
+## 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. Please check the [CLI Options](./cli/descheduler.md) documentation for details
+
+## 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/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "PodLifeTime"
+      args:
+        maxPodLifeTimeSeconds: 604800
+    plugins:
+      deschedule:
+        enabled:
+          - "PodLifeTime"
+```
+
+### Balance Cluster By Node Memory Utilization
+If your cluster has been running for a long period of time, you may find that the resource utilization is not very
+balanced. The following two strategies can be used to rebalance your cluster based on `cpu`, `memory`
+or `number of pods`.
+
+#### Balance high utilization nodes
+Using `LowNodeUtilization`, descheduler will rebalance the cluster based on memory by evicting pods
+from nodes with memory utilization over 70% to nodes with memory utilization below 20%.
+
+```
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "LowNodeUtilization"
+      args:
+        thresholds:
+          "memory": 20
+        targetThresholds:
+          "memory": 70
+    plugins:
+      balance:
+        enabled:
+          - "LowNodeUtilization"
+```
+
+#### Balance low utilization nodes
+Using `HighNodeUtilization`, descheduler will rebalance the cluster based on memory by evicting pods
+from nodes with memory utilization lower than 20%. This should be use `NodeResourcesFit` with the `MostAllocated` scoring strategy based on these [doc](https://kubernetes.io/docs/reference/scheduling/config/#scheduling-plugins).
+The evicted pods will be compacted into minimal set of nodes.
+
+```
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "HighNodeUtilization"
+      args:
+        thresholds:
+          "memory": 20
+    plugins:
+      balance:
+        enabled:
+          - "HighNodeUtilization"
+```
+
+### Autoheal Node Problems
+
+Descheduler's `RemovePodsViolatingNodeTaints` strategy can be combined with
+[Node Problem Detector](https://github.com/kubernetes/node-problem-detector/) and
+[Cluster Autoscaler](https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler) to automatically remove
+Nodes which have problems. Node Problem Detector can detect specific Node problems and report them to the API server.
+There is a feature called TaintNodeByCondition of the node controller that takes some conditions and turns them into taints. Currently, this only works for the default node conditions: PIDPressure, MemoryPressure, DiskPressure, Ready, and some cloud provider specific conditions.
+The Descheduler will then deschedule workloads from those Nodes. Finally, if the descheduled Node's resource
+allocation falls below the Cluster Autoscaler's scale down threshold, the Node will become a scale down candidate
+and can be removed by Cluster Autoscaler. These three components form an autohealing cycle for Node problems.
+
+---
+**NOTE**
+
+Once [kubernetes/node-problem-detector#565](https://github.com/kubernetes/node-problem-detector/pull/565) is available in NPD, we need to update this section.
+
+---

examples/failed-pods.yaml

@@ -0,0 +1,18 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "RemoveFailedPods"
+      args:
+        reasons:
+        - "OutOfcpu"
+        - "CreateContainerConfigError"
+        includingInitContainers: true
+        excludeOwnerKinds:
+        - "Job"
+        minPodLifetimeSeconds: 3600
+    plugins:
+      deschedule:
+        enabled:
+          - "RemoveFailedPods"

examples/high-node-utilization.yml

@@ -0,0 +1,13 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "HighNodeUtilization"
+      args:
+        thresholds:
+          "memory": 20
+    plugins:
+      balance:
+        enabled:
+          - "HighNodeUtilization"

examples/low-node-utilization.yml

@@ -0,0 +1,15 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "LowNodeUtilization"
+      args:
+        thresholds:
+          "memory": 20
+        targetThresholds:
+          "memory": 70
+    plugins:
+      balance:
+        enabled:
+          - "LowNodeUtilization"

examples/node-affinity.yml

@@ -1,8 +1,13 @@
-apiVersion: "descheduler/v1alpha1"
+apiVersion: "descheduler/v1alpha2"
 kind: "DeschedulerPolicy"
-strategies:
-  "RemovePodsViolatingNodeAffinity":
-    enabled: true
-    params:
-      nodeAffinityType:
-      - "requiredDuringSchedulingIgnoredDuringExecution"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "RemovePodsViolatingNodeAffinity"
+      args:
+        nodeAffinityType:
+        - "requiredDuringSchedulingIgnoredDuringExecution"
+    plugins:
+      deschedule:
+        enabled:
+          - "RemovePodsViolatingNodeAffinity"

examples/pod-life-time.yml

@@ -0,0 +1,15 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "PodLifeTime"
+      args:
+        maxPodLifeTimeSeconds: 604800 # 7 days
+        states:
+        - "Pending"
+        - "PodInitializing"
+    plugins:
+      deschedule:
+        enabled:
+          - "PodLifeTime"

examples/policy.yaml

@@ -1,19 +1,36 @@
-apiVersion: "descheduler/v1alpha1"
+apiVersion: "descheduler/v1alpha2"
 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
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "RemoveDuplicates"
+    - name: "RemovePodsViolatingInterPodAntiAffinity"
+    - name: "LowNodeUtilization"
+      args:
+        thresholds:
+          "cpu" : 20
+          "memory": 20
+          "pods": 20
+        targetThresholds:
+          "cpu" : 50
+          "memory": 50
+          "pods": 50
+    - name: "RemovePodsHavingTooManyRestarts"
+      args:
+        podRestartThreshold: 100
+        includingInitContainers: true
+    - name: "RemovePodsViolatingTopologySpreadConstraint"
+      args:
+        constraints:
+          - DoNotSchedule
+          - ScheduleAnyway
+    plugins:
+      deschedule:
+        enabled:
+          - "RemovePodsViolatingInterPodAntiAffinity"
+          - "RemovePodsHavingTooManyRestarts"
+      balance:
+        enabled:
+          - "RemoveDuplicates"
+          - "LowNodeUtilization"
+          - "RemovePodsViolatingTopologySpreadConstraint"

examples/too-many-restarts.yml

@@ -0,0 +1,15 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "RemovePodsHavingTooManyRestarts"
+      args:
+        podRestartThreshold: 100
+        includingInitContainers: true
+        states:
+        - CrashLoopBackOff
+    plugins:
+      deschedule:
+        enabled:
+          - "RemovePodsHavingTooManyRestarts"

examples/topology-spread-constraint.yaml

@@ -0,0 +1,14 @@
+apiVersion: "descheduler/v1alpha2"
+kind: "DeschedulerPolicy"
+profiles:
+  - name: ProfileName
+    pluginConfig:
+    - name: "RemovePodsViolatingTopologySpreadConstraint"
+      args:
+        constraints:
+          - DoNotSchedule
+          - ScheduleAnyway
+    plugins:
+      balance:
+        enabled:
+          - "RemovePodsViolatingTopologySpreadConstraint"

glide.lock

@@ -1,464 +0,0 @@
-hash: ed51a8e643db6e9996ef0ffca671fb31ab5b7fe0d61ecdda828192871f9da366
-updated: 2018-05-22T18:05:00.26435-07:00
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-  - autorest/adal
-  - autorest/azure
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-  version: 01aeca54ebda6e0fbfafd0a524d234159c05ec20
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-  - autoscaling/v2beta1
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-  - scheduling/v1alpha1
-  - settings/v1alpha1
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-  - storage/v1alpha1
-  - storage/v1beta1
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-  - 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
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-  - pkg/util/intstr
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-  - 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: 91e14f394e4796abf5a994a349a222e7081d86b6
-  subpackages:
-  - pkg/features
-  - pkg/util/feature
-  - pkg/util/flag
-  - pkg/util/logs
-- name: k8s.io/client-go
-  version: 78700dec6369ba22221b72770783300f143df150
-  subpackages:
-  - discovery
-  - discovery/fake
-  - kubernetes
-  - kubernetes/fake
-  - kubernetes/scheme
-  - kubernetes/typed/admissionregistration/v1alpha1
-  - kubernetes/typed/admissionregistration/v1alpha1/fake
-  - kubernetes/typed/admissionregistration/v1beta1
-  - kubernetes/typed/admissionregistration/v1beta1/fake
-  - kubernetes/typed/apps/v1
-  - kubernetes/typed/apps/v1/fake
-  - kubernetes/typed/apps/v1beta1
-  - kubernetes/typed/apps/v1beta1/fake
-  - kubernetes/typed/apps/v1beta2
-  - kubernetes/typed/apps/v1beta2/fake
-  - kubernetes/typed/authentication/v1
-  - kubernetes/typed/authentication/v1/fake
-  - kubernetes/typed/authentication/v1beta1
-  - kubernetes/typed/authentication/v1beta1/fake
-  - kubernetes/typed/authorization/v1
-  - kubernetes/typed/authorization/v1/fake
-  - kubernetes/typed/authorization/v1beta1
-  - kubernetes/typed/authorization/v1beta1/fake
-  - kubernetes/typed/autoscaling/v1
-  - kubernetes/typed/autoscaling/v1/fake
-  - kubernetes/typed/autoscaling/v2beta1
-  - kubernetes/typed/autoscaling/v2beta1/fake
-  - kubernetes/typed/batch/v1
-  - kubernetes/typed/batch/v1/fake
-  - kubernetes/typed/batch/v1beta1
-  - kubernetes/typed/batch/v1beta1/fake
-  - kubernetes/typed/batch/v2alpha1
-  - kubernetes/typed/batch/v2alpha1/fake
-  - kubernetes/typed/certificates/v1beta1
-  - kubernetes/typed/certificates/v1beta1/fake
-  - kubernetes/typed/core/v1
-  - kubernetes/typed/core/v1/fake
-  - kubernetes/typed/events/v1beta1
-  - kubernetes/typed/events/v1beta1/fake
-  - kubernetes/typed/extensions/v1beta1
-  - kubernetes/typed/extensions/v1beta1/fake
-  - kubernetes/typed/networking/v1
-  - kubernetes/typed/networking/v1/fake
-  - kubernetes/typed/policy/v1beta1
-  - kubernetes/typed/policy/v1beta1/fake
-  - kubernetes/typed/rbac/v1
-  - kubernetes/typed/rbac/v1/fake
-  - kubernetes/typed/rbac/v1alpha1
-  - kubernetes/typed/rbac/v1alpha1/fake
-  - kubernetes/typed/rbac/v1beta1
-  - kubernetes/typed/rbac/v1beta1/fake
-  - kubernetes/typed/scheduling/v1alpha1
-  - kubernetes/typed/scheduling/v1alpha1/fake
-  - kubernetes/typed/settings/v1alpha1
-  - kubernetes/typed/settings/v1alpha1/fake
-  - kubernetes/typed/storage/v1
-  - kubernetes/typed/storage/v1/fake
-  - kubernetes/typed/storage/v1alpha1
-  - kubernetes/typed/storage/v1alpha1/fake
-  - kubernetes/typed/storage/v1beta1
-  - kubernetes/typed/storage/v1beta1/fake
-  - listers/core/v1
-  - pkg/version
-  - plugin/pkg/client/auth
-  - plugin/pkg/client/auth/azure
-  - plugin/pkg/client/auth/gcp
-  - plugin/pkg/client/auth/oidc
-  - plugin/pkg/client/auth/openstack
-  - rest
-  - rest/watch
-  - testing
-  - third_party/forked/golang/template
-  - tools/auth
-  - tools/cache
-  - tools/clientcmd
-  - tools/clientcmd/api
-  - tools/clientcmd/api/latest
-  - tools/clientcmd/api/v1
-  - tools/metrics
-  - tools/pager
-  - tools/reference
-  - transport
-  - util/buffer
-  - util/cert
-  - util/flowcontrol
-  - util/homedir
-  - util/integer
-  - util/jsonpath
-- name: k8s.io/code-generator
-  version: fef8bcdbaf36ac6a1a18c9ef7d85200b249fad30
-- name: k8s.io/gengo
-  version: 1ef560bbde5195c01629039ad3b337ce63e7b321
-- name: k8s.io/kube-openapi
-  version: 39a7bf85c140f972372c2a0d1ee40adbf0c8bfe1
-  subpackages:
-  - pkg/builder
-  - pkg/common
-  - pkg/handler
-  - pkg/util
-  - pkg/util/proto
-- name: k8s.io/kubernetes
-  version: 925c127ec6b946659ad0fd596fa959be43f0cc05
-  subpackages:
-  - pkg/api/legacyscheme
-  - pkg/api/testapi
-  - pkg/api/v1/resource
-  - pkg/apis/admission
-  - pkg/apis/admission/install
-  - pkg/apis/admission/v1beta1
-  - pkg/apis/admissionregistration
-  - pkg/apis/admissionregistration/install
-  - pkg/apis/admissionregistration/v1alpha1
-  - pkg/apis/admissionregistration/v1beta1
-  - pkg/apis/apps
-  - pkg/apis/apps/install
-  - pkg/apis/apps/v1
-  - pkg/apis/apps/v1beta1
-  - pkg/apis/apps/v1beta2
-  - 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/v2beta1
-  - pkg/apis/batch
-  - pkg/apis/batch/install
-  - pkg/apis/batch/v1
-  - pkg/apis/batch/v1beta1
-  - pkg/apis/batch/v2alpha1
-  - pkg/apis/certificates
-  - pkg/apis/certificates/install
-  - pkg/apis/certificates/v1beta1
-  - pkg/apis/componentconfig
-  - pkg/apis/componentconfig/install
-  - pkg/apis/componentconfig/v1alpha1
-  - pkg/apis/core
-  - pkg/apis/core/helper
-  - pkg/apis/core/install
-  - pkg/apis/core/v1
-  - pkg/apis/core/v1/helper
-  - pkg/apis/core/v1/helper/qos
-  - pkg/apis/events
-  - pkg/apis/events/install
-  - pkg/apis/events/v1beta1
-  - pkg/apis/extensions
-  - pkg/apis/extensions/install
-  - pkg/apis/extensions/v1beta1
-  - pkg/apis/imagepolicy
-  - pkg/apis/imagepolicy/install
-  - pkg/apis/imagepolicy/v1alpha1
-  - pkg/apis/networking
-  - pkg/apis/networking/install
-  - 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/v1
-  - pkg/apis/rbac/v1alpha1
-  - pkg/apis/rbac/v1beta1
-  - pkg/apis/scheduling
-  - pkg/apis/scheduling/install
-  - pkg/apis/scheduling/v1alpha1
-  - 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/v1alpha1
-  - pkg/apis/storage/v1beta1
-  - pkg/features
-  - pkg/kubelet/apis
-  - pkg/kubelet/types
-  - pkg/master/ports
-  - pkg/util/parsers
-  - pkg/util/pointer
-  - plugin/pkg/scheduler/algorithm/priorities/util
-testImports: []

glide.yaml

@@ -1,25 +0,0 @@
-package: github.com/kubernetes-incubator/descheduler
-import:
-- package: k8s.io/client-go
-  version: 78700dec6369ba22221b72770783300f143df150
-- package: k8s.io/api
-  version: af4bc157c3a209798fc897f6d4aaaaeb6c2e0d6a
-- package: k8s.io/apiserver
-  version: 91e14f394e4796abf5a994a349a222e7081d86b6
-- package: k8s.io/apimachinery
-  version: 180eddb345a5be3a157cea1c624700ad5bd27b8f
-- package: k8s.io/kubernetes
-  version: v1.9.0
-- package: k8s.io/code-generator
-  version: kubernetes-1.9.0
-- package: github.com/kubernetes/repo-infra
-- package: github.com/spf13/cobra
-  version: f62e98d28ab7ad31d707ba837a966378465c7b57
-- package: k8s.io/gengo
-- package: github.com/ugorji/go
-  version: v.1.1-beta
-- package: github.com/Azure/go-autorest
-  version: e14a70c556c8e0db173358d1a903dca345a8e75e
-- package: golang.org/x/tools
-  subpackages:
-  - imports

go.mod

@@ -0,0 +1,116 @@
+module sigs.k8s.io/descheduler
+
+go 1.22.2
+
+require (
+	github.com/client9/misspell v0.3.4
+	github.com/google/go-cmp v0.6.0
+	github.com/spf13/cobra v1.8.0
+	github.com/spf13/pflag v1.0.5
+	go.opentelemetry.io/otel v1.24.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.24.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.24.0
+	go.opentelemetry.io/otel/sdk v1.24.0
+	go.opentelemetry.io/otel/trace v1.24.0
+	google.golang.org/grpc v1.62.0
+	k8s.io/api v0.30.0
+	k8s.io/apimachinery v0.30.0
+	k8s.io/apiserver v0.30.0
+	k8s.io/client-go v0.30.0
+	k8s.io/code-generator v0.30.0
+	k8s.io/component-base v0.30.0
+	k8s.io/component-helpers v0.30.0
+	k8s.io/klog/v2 v2.120.1
+	k8s.io/utils v0.0.0-20240310230437-4693a0247e57
+	sigs.k8s.io/mdtoc v1.1.0
+)
+
+require (
+	github.com/BurntSushi/toml v0.3.1 // indirect
+	github.com/NYTimes/gziphandler v1.1.1 // indirect
+	github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df // indirect
+	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/blang/semver/v4 v4.0.0 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/coreos/go-semver v0.3.1 // indirect
+	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.3 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/felixge/httpsnoop v1.0.3 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-logr/zapr v1.3.0 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/gomarkdown/markdown v0.0.0-20210514010506-3b9f47219fe7 // indirect
+	github.com/google/cel-go v0.17.8 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mmarkdown/mmark v2.0.40+incompatible // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_golang v1.16.0 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.10.1 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/stoewer/go-strcase v1.2.0 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.10 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.10 // indirect
+	go.etcd.io/etcd/client/v3 v3.5.10 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.42.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.44.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.1.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.26.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
+	golang.org/x/mod v0.15.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/oauth2 v0.16.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/term v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.18.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto v0.0.0-20240123012728-ef4313101c80 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240123012728-ef4313101c80 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240123012728-ef4313101c80 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/gengo/v2 v2.0.0-20240228010128-51d4e06bde70 // indirect
+	k8s.io/kms v0.30.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
+	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.29.0 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)
+
+replace go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc => go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.47.0

go.sum

@@ -0,0 +1,348 @@
+cloud.google.com/go v0.112.0 h1:tpFCD7hpHFlQ8yPwT3x+QeXqc2T6+n6T+hmABHfDUSM=
+cloud.google.com/go/compute v1.23.3 h1:6sVlXXBmbd7jNX0Ipq0trII3e4n1/MsADLK6a+aiVlk=
+cloud.google.com/go/compute v1.23.3/go.mod h1:VCgBUoMnIVIR0CscqQiPJLAG25E3ZRZMzcFZeQ+h8CI=
+cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
+github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
+github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df h1:7RFfzj4SSt6nnvCPbCqijJi1nWCd+TqAT3bYCStRC18=
+github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df/go.mod h1:pSwJ0fSY5KhvocuWSx4fz3BA8OrA1bQn+K1Eli3BRwM=
+github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4B6AGu/h5Sxe66HYVdqdGu2l9Iebqhi/AEoA=
+github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
+github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
+github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
+github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/client9/misspell v0.3.4 h1:ta993UF76GwbvJcIo3Y68y/M3WxlpEHPWIGDkJYwzJI=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/xds/go v0.0.0-20231128003011-0fa0005c9caa h1:jQCWAUqqlij9Pgj2i/PB79y4KOPYVyFYdROxgaCwdTQ=
+github.com/cncf/xds/go v0.0.0-20231128003011-0fa0005c9caa/go.mod h1:x/1Gn8zydmfq8dk6e9PdstVsDgu9RuyIIJqAaF//0IM=
+github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=
+github.com/coreos/go-semver v0.3.1/go.mod h1:irMmmIw/7yzSRPWryHsK7EYSg09caPQL03VsM8rvUec=
+github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/cpuguy83/go-md2man/v2 v2.0.3 h1:qMCsGGgs+MAzDFyp9LpAe1Lqy/fY/qCovCm0qnXZOBM=
+github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
+github.com/emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
+github.com/envoyproxy/protoc-gen-validate v1.0.4 h1:gVPz/FMfvh57HdSJQyvBtF00j8JU4zdyUgIUNhlgg0A=
+github.com/envoyproxy/protoc-gen-validate v1.0.4/go.mod h1:qys6tmnRsYrQqIhm2bvKZH4Blx/1gTIZ2UKVY1M+Yew=
+github.com/evanphx/json-patch v4.12.0+incompatible h1:4onqiflcdA9EOZ4RxV643DvftH5pOlLGNtQ5lPWQu84=
+github.com/evanphx/json-patch v4.12.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
+github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBdXk=
+github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
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+sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.29.0 h1:/U5vjBbQn3RChhv7P11uhYvCSm5G2GaIi5AIGBS6r4c=
+sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.29.0/go.mod h1:z7+wmGM2dfIiLRfrC6jb5kV2Mq/sK1ZP303cxzkV5Y4=
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+sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8=

hack/.spelling_failures

@@ -0,0 +1,6 @@
+BUILD
+CHANGELOG
+OWNERS
+go.mod
+go.sum
+vendor/

hack/cherry_pick_pull.sh

@@ -0,0 +1,257 @@
+#!/usr/bin/env 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.
+
+# Usage Instructions: https://git.k8s.io/community/contributors/devel/sig-release/cherry-picks.md
+
+# Checkout a PR from GitHub. (Yes, this is sitting in a Git tree. How
+# meta.) Assumes you care about pulls from remote "upstream" and
+# checks them out to a branch named:
+#  automated-cherry-pick-of-<pr>-<target branch>-<timestamp>
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+REPO_ROOT="$(git rev-parse --show-toplevel)"
+declare -r REPO_ROOT
+cd "${REPO_ROOT}"
+
+STARTINGBRANCH=$(git symbolic-ref --short HEAD)
+declare -r STARTINGBRANCH
+declare -r REBASEMAGIC="${REPO_ROOT}/.git/rebase-apply"
+DRY_RUN=${DRY_RUN:-""}
+REGENERATE_DOCS=${REGENERATE_DOCS:-""}
+UPSTREAM_REMOTE=${UPSTREAM_REMOTE:-upstream}
+FORK_REMOTE=${FORK_REMOTE:-origin}
+MAIN_REPO_ORG=${MAIN_REPO_ORG:-$(git remote get-url "$UPSTREAM_REMOTE" | awk '{gsub(/http[s]:\/\/|git@/,"")}1' | awk -F'[@:./]' 'NR==1{print $3}')}
+MAIN_REPO_NAME=${MAIN_REPO_NAME:-$(git remote get-url "$UPSTREAM_REMOTE" | awk '{gsub(/http[s]:\/\/|git@/,"")}1' | awk -F'[@:./]' 'NR==1{print $4}')}
+
+if [[ -z ${GITHUB_USER:-} ]]; then
+  echo "Please export GITHUB_USER=<your-user> (or GH organization, if that's where your fork lives)"
+  exit 1
+fi
+
+if ! command -v gh > /dev/null; then
+  echo "Can't find 'gh' tool in PATH, please install from https://github.com/cli/cli"
+  exit 1
+fi
+
+if [[ "$#" -lt 2 ]]; then
+  echo "${0} <remote branch> <pr-number>...: cherry pick one or more <pr> onto <remote branch> and leave instructions for proposing pull request"
+  echo
+  echo "  Checks out <remote branch> and handles the cherry-pick of <pr> (possibly multiple) for you."
+  echo "  Examples:"
+  echo "    $0 upstream/release-3.14 12345        # Cherry-picks PR 12345 onto upstream/release-3.14 and proposes that as a PR."
+  echo "    $0 upstream/release-3.14 12345 56789  # Cherry-picks PR 12345, then 56789 and proposes the combination as a single PR."
+  echo
+  echo "  Set the DRY_RUN environment var to skip git push and creating PR."
+  echo "  This is useful for creating patches to a release branch without making a PR."
+  echo "  When DRY_RUN is set the script will leave you in a branch containing the commits you cherry-picked."
+  echo
+  echo "  Set the REGENERATE_DOCS environment var to regenerate documentation for the target branch after picking the specified commits."
+  echo "  This is useful when picking commits containing changes to API documentation."
+  echo
+  echo "  Set UPSTREAM_REMOTE (default: upstream) and FORK_REMOTE (default: origin)"
+  echo "  to override the default remote names to what you have locally."
+  echo
+  echo "  For merge process info, see https://git.k8s.io/community/contributors/devel/sig-release/cherry-picks.md"
+  exit 2
+fi
+
+# Checks if you are logged in. Will error/bail if you are not.
+gh auth status
+
+if git_status=$(git status --porcelain --untracked=no 2>/dev/null) && [[ -n "${git_status}" ]]; then
+  echo "!!! Dirty tree. Clean up and try again."
+  exit 1
+fi
+
+if [[ -e "${REBASEMAGIC}" ]]; then
+  echo "!!! 'git rebase' or 'git am' in progress. Clean up and try again."
+  exit 1
+fi
+
+declare -r BRANCH="$1"
+shift 1
+declare -r PULLS=( "$@" )
+
+function join { local IFS="$1"; shift; echo "$*"; }
+PULLDASH=$(join - "${PULLS[@]/#/#}") # Generates something like "#12345-#56789"
+declare -r PULLDASH
+PULLSUBJ=$(join " " "${PULLS[@]/#/#}") # Generates something like "#12345 #56789"
+declare -r PULLSUBJ
+
+echo "+++ Updating remotes..."
+git remote update "${UPSTREAM_REMOTE}" "${FORK_REMOTE}"
+
+if ! git log -n1 --format=%H "${BRANCH}" >/dev/null 2>&1; then
+  echo "!!! '${BRANCH}' not found. The second argument should be something like ${UPSTREAM_REMOTE}/release-0.21."
+  echo "    (In particular, it needs to be a valid, existing remote branch that I can 'git checkout'.)"
+  exit 1
+fi
+
+NEWBRANCHREQ="automated-cherry-pick-of-${PULLDASH}" # "Required" portion for tools.
+declare -r NEWBRANCHREQ
+NEWBRANCH="$(echo "${NEWBRANCHREQ}-${BRANCH}" | sed 's/\//-/g')"
+declare -r NEWBRANCH
+NEWBRANCHUNIQ="${NEWBRANCH}-$(date +%s)"
+declare -r NEWBRANCHUNIQ
+echo "+++ Creating local branch ${NEWBRANCHUNIQ}"
+
+cleanbranch=""
+gitamcleanup=false
+function return_to_kansas {
+  if [[ "${gitamcleanup}" == "true" ]]; then
+    echo
+    echo "+++ Aborting in-progress git am."
+    git am --abort >/dev/null 2>&1 || true
+  fi
+
+  # return to the starting branch and delete the PR text file
+  if [[ -z "${DRY_RUN}" ]]; then
+    echo
+    echo "+++ Returning you to the ${STARTINGBRANCH} branch and cleaning up."
+    git checkout -f "${STARTINGBRANCH}" >/dev/null 2>&1 || true
+    if [[ -n "${cleanbranch}" ]]; then
+      git branch -D "${cleanbranch}" >/dev/null 2>&1 || true
+    fi
+  fi
+}
+trap return_to_kansas EXIT
+
+SUBJECTS=()
+function make-a-pr() {
+  local rel
+  rel="$(basename "${BRANCH}")"
+  echo
+  echo "+++ Creating a pull request on GitHub at ${GITHUB_USER}:${NEWBRANCH}"
+
+  local numandtitle
+  numandtitle=$(printf '%s\n' "${SUBJECTS[@]}")
+  prtext=$(cat <<EOF
+Cherry pick of ${PULLSUBJ} on ${rel}.
+
+${numandtitle}
+
+For details on the cherry pick process, see the [cherry pick requests](https://git.k8s.io/community/contributors/devel/sig-release/cherry-picks.md) page.
+
+\`\`\`release-note
+
+\`\`\`
+EOF
+)
+
+  gh pr create --title="Automated cherry pick of ${numandtitle}" --body="${prtext}" --head "${GITHUB_USER}:${NEWBRANCH}" --base "${rel}" --repo="${MAIN_REPO_ORG}/${MAIN_REPO_NAME}"
+}
+
+git checkout -b "${NEWBRANCHUNIQ}" "${BRANCH}"
+cleanbranch="${NEWBRANCHUNIQ}"
+
+gitamcleanup=true
+for pull in "${PULLS[@]}"; do
+  echo "+++ Downloading patch to /tmp/${pull}.patch (in case you need to do this again)"
+
+  curl -o "/tmp/${pull}.patch" -sSL "https://github.com/${MAIN_REPO_ORG}/${MAIN_REPO_NAME}/pull/${pull}.patch"
+  echo
+  echo "+++ About to attempt cherry pick of PR. To reattempt:"
+  echo "  $ git am -3 /tmp/${pull}.patch"
+  echo
+  git am -3 "/tmp/${pull}.patch" || {
+    conflicts=false
+    while unmerged=$(git status --porcelain | grep ^U) && [[ -n ${unmerged} ]] \
+      || [[ -e "${REBASEMAGIC}" ]]; do
+      conflicts=true # <-- We should have detected conflicts once
+      echo
+      echo "+++ Conflicts detected:"
+      echo
+      (git status --porcelain | grep ^U) || echo "!!! None. Did you git am --continue?"
+      echo
+      echo "+++ Please resolve the conflicts in another window (and remember to 'git add / git am --continue')"
+      read -p "+++ Proceed (anything other than 'y' aborts the cherry-pick)? [y/n] " -r
+      echo
+      if ! [[ "${REPLY}" =~ ^[yY]$ ]]; then
+        echo "Aborting." >&2
+        exit 1
+      fi
+    done
+
+    if [[ "${conflicts}" != "true" ]]; then
+      echo "!!! git am failed, likely because of an in-progress 'git am' or 'git rebase'"
+      exit 1
+    fi
+  }
+
+  # set the subject
+  subject=$(grep -m 1 "^Subject" "/tmp/${pull}.patch" | sed -e 's/Subject: \[PATCH//g' | sed 's/.*] //')
+  SUBJECTS+=("#${pull}: ${subject}")
+
+  # remove the patch file from /tmp
+  rm -f "/tmp/${pull}.patch"
+done
+gitamcleanup=false
+
+# Re-generate docs (if needed)
+if [[ -n "${REGENERATE_DOCS}" ]]; then
+  echo
+  echo "Regenerating docs..."
+  if ! hack/generate-docs.sh; then
+    echo
+    echo "hack/generate-docs.sh FAILED to complete."
+    exit 1
+  fi
+fi
+
+if [[ -n "${DRY_RUN}" ]]; then
+  echo "!!! Skipping git push and PR creation because you set DRY_RUN."
+  echo "To return to the branch you were in when you invoked this script:"
+  echo
+  echo "  git checkout ${STARTINGBRANCH}"
+  echo
+  echo "To delete this branch:"
+  echo
+  echo "  git branch -D ${NEWBRANCHUNIQ}"
+  exit 0
+fi
+
+if git remote -v | grep ^"${FORK_REMOTE}" | grep "${MAIN_REPO_ORG}/${MAIN_REPO_NAME}.git"; then
+  echo "!!! You have ${FORK_REMOTE} configured as your ${MAIN_REPO_ORG}/${MAIN_REPO_NAME}.git"
+  echo "This isn't normal. Leaving you with push instructions:"
+  echo
+  echo "+++ First manually push the branch this script created:"
+  echo
+  echo "  git push REMOTE ${NEWBRANCHUNIQ}:${NEWBRANCH}"
+  echo
+  echo "where REMOTE is your personal fork (maybe ${UPSTREAM_REMOTE}? Consider swapping those.)."
+  echo "OR consider setting UPSTREAM_REMOTE and FORK_REMOTE to different values."
+  echo
+  make-a-pr
+  cleanbranch=""
+  exit 0
+fi
+
+echo
+echo "+++ I'm about to do the following to push to GitHub (and I'm assuming ${FORK_REMOTE} is your personal fork):"
+echo
+echo "  git push ${FORK_REMOTE} ${NEWBRANCHUNIQ}:${NEWBRANCH}"
+echo
+read -p "+++ Proceed (anything other than 'y' aborts the cherry-pick)? [y/n] " -r
+if ! [[ "${REPLY}" =~ ^[yY]$ ]]; then
+  echo "Aborting." >&2
+  exit 1
+fi
+
+git push "${FORK_REMOTE}" -f "${NEWBRANCHUNIQ}:${NEWBRANCH}"
+make-a-pr

hack/doc-gen/main.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/spf13/cobra/doc"
+	"sigs.k8s.io/descheduler/cmd/descheduler/app"
+)
+
+var docGenPath = "docs/cli"
+
+func main() {
+	cmd := app.NewDeschedulerCommand(os.Stdout)
+	cmd.AddCommand(app.NewVersionCommand())
+	cmd.DisableAutoGenTag = true // Disable this so that the diff wont track it
+	if err := doc.GenMarkdownTree(cmd, docGenPath); err != nil {
+		log.Fatal(err)
+	}
+}

hack/e2e-gce/gcloud_create_cluster.sh

@@ -10,7 +10,7 @@ master_uuid=$(uuid)
 node1_uuid=$(uuid)
 node2_uuid=$(uuid)
 kube_apiserver_port=6443
-kube_version=1.9.4
+kube_version=1.13.1
 
 DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/../../
 E2E_GCE_HOME=$DESCHEDULER_ROOT/hack/e2e-gce
@@ -18,15 +18,15 @@ E2E_GCE_HOME=$DESCHEDULER_ROOT/hack/e2e-gce
 
 create_cluster() {
 	echo "#################### Creating instances ##########################"
-        gcloud compute instances create descheduler-$master_uuid --image="ubuntu-1604-xenial-v20180306" --image-project="ubuntu-os-cloud" --zone=us-east1-b
+	gcloud compute instances create descheduler-$master_uuid --image-family="ubuntu-1804-lts" --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
+
+	gcloud compute instances create descheduler-$node1_uuid --image-family="ubuntu-1804-lts" --image-project="ubuntu-os-cloud" --zone=us-east1-b
 	echo "gcloud compute instances delete descheduler-$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" >> $E2E_GCE_HOME/delete_cluster.sh
+	gcloud compute instances create descheduler-$node2_uuid --image-family="ubuntu-1804-lts" --image-project="ubuntu-os-cloud" --zone=us-east1-b
+	echo "gcloud compute instances delete descheduler-$node2_uuid --zone=us-east1-c --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
@@ -36,18 +36,18 @@ create_cluster() {
 
 generate_kubeadm_instance_files() {
 	# TODO: Check if they have come up. awk $6 contains the state(RUNNING or not).
-	master_public_ip=$(gcloud compute instances list | grep $master_uuid|awk '{print $5}')
+	master_private_ip=$(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_public_ip}" --skip-preflight-checks --pod-network-cidr=10.96.0.0/12 > $E2E_GCE_HOME/kubeadm_install.sh
+	echo "kubeadm init --kubernetes-version=${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 $E2E_GCE_HOME/kubeadm_preinstall.sh descheduler-$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
+	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-c
 }
 
 
@@ -55,19 +55,19 @@ 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-$node2_uuid --command "sudo apt-get update; sudo apt-get install -y docker.io" --zone=us-east1-b
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo apt-get update; sudo apt-get install -y docker.io" --zone=us-east1-c
 	# 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 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. 
+	# 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
 
@@ -75,16 +75,15 @@ install_kube() {
 	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. 
+	# 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-$node2_uuid --command "sudo chmod 755 /tmp/kubeadm_join.sh; sudo /tmp/kubeadm_join.sh" --zone=us-east1-b
-
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo chmod 755 /tmp/kubeadm_preinstall.sh; sudo /tmp/kubeadm_preinstall.sh" --zone=us-east1-c
+	gcloud compute scp $E2E_GCE_HOME/kubeadm_join.sh descheduler-$node2_uuid:/tmp --zone=us-east1-c
+	gcloud compute ssh descheduler-$node2_uuid --command "sudo chmod 755 /tmp/kubeadm_join.sh; sudo /tmp/kubeadm_join.sh" --zone=us-east1-c
 }
 
 

hack/kind_config.yaml

@@ -0,0 +1,18 @@
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+- role: worker
+  kubeadmConfigPatches:
+    - |
+      kind: JoinConfiguration
+      nodeRegistration:
+        kubeletExtraArgs:
+          node-labels: "topology.kubernetes.io/zone=local-a"
+- role: worker
+  kubeadmConfigPatches:
+    - |
+      kind: JoinConfiguration
+      nodeRegistration:
+        kubeletExtraArgs:
+          node-labels: "topology.kubernetes.io/zone=local-b"

hack/lib/generator-help.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+# Utility command based on 'find' command. The pipeline is as following:
+#   1. find all the go files; (exclude specific path: vendor etc)
+#   2. find all the files containing specific tags in contents;
+#   3. extract related dirs;
+#   4. remove duplicated paths;
+#   5. merge all dirs in array with delimiter ,;
+#
+# Example:
+#   find_dirs_containing_comment_tags("+k8s:")
+# Return:
+#   sigs.k8s.io/descheduler/a,sigs.k8s.io/descheduler/b,sigs.k8s.io/descheduler/c
+function find_dirs_containing_comment_tags() {
+   array=()
+   while IFS='' read -r line; do array+=("$line"); done < <( \
+     find . -type f -name \*.go -not -path "./vendor/*" -not -path "./_tmp/*" -print0  \
+     | xargs -0 grep --color=never -l "$@" \
+     | xargs -n1 dirname \
+     | LC_ALL=C sort -u \
+     )
+
+   IFS=" ";
+   printf '%s' "${array[*]}";
+}

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/${REPO_ORG:-kubernetes-incubator}/descheduler"
+PRJ_PREFIX="sigs.k8s.io/descheduler"
 OS_OUTPUT_BINPATH="${OS_ROOT}/_output/bin"

hack/tools.go

@@ -0,0 +1,27 @@
+//go:build tools
+// +build tools
+
+/*
+Copyright 2019 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 package imports things required by build scripts, to force `go mod` to see them as dependencies
+package tools
+
+import (
+	_ "github.com/client9/misspell/cmd/misspell"
+	_ "k8s.io/code-generator"
+	_ "sigs.k8s.io/mdtoc"
+)

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/${REPO_ORG:-kubernetes-incubator}/descheduler"
-
-# Register function to be called on EXIT to remove codecgen
-# binary and also to touch the files that should be regenerated
-# since they are first removed.
-# This is necessary to make the script work after previous failure.
-function cleanup {
-  rm -f "${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-docs.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Copyright 2023 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
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+go run ${SCRIPT_DIR}/doc-gen

hack/update-generated-conversions.sh

@@ -1,9 +1,10 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+source "$(dirname "${BASH_SOURCE}")/lib/generator-help.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/conversion-gen" "${PRJ_PREFIX}/vendor/k8s.io/code-generator/cmd/conversion-gen"
+go build -o "${OS_OUTPUT_BINPATH}/conversion-gen" "k8s.io/code-generator/cmd/conversion-gen"
 
 ${OS_OUTPUT_BINPATH}/conversion-gen \
 		--go-header-file "hack/boilerplate/boilerplate.go.txt" \
-		--input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api/v1alpha1" \
-		--output-file-base zz_generated.conversion
+		--output-file zz_generated.conversion.go \
+		$(find_dirs_containing_comment_tags "+k8s:conversion-gen=")

hack/update-generated-deep-copies.sh

@@ -1,10 +1,11 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+source "$(dirname "${BASH_SOURCE}")/lib/generator-help.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "${PRJ_PREFIX}/vendor/k8s.io/code-generator/cmd/deepcopy-gen"
+go build -o "${OS_OUTPUT_BINPATH}/deepcopy-gen" "k8s.io/code-generator/cmd/deepcopy-gen"
 
 ${OS_OUTPUT_BINPATH}/deepcopy-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \
-                --input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig,${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api,${PRJ_PREFIX}/pkg/api/v1alpha1" \
-                --output-file-base zz_generated.deepcopy
+                --output-file zz_generated.deepcopy.go \
+                $(find_dirs_containing_comment_tags "+k8s:deepcopy-gen=")
 

hack/update-generated-defaulters.sh

@@ -1,10 +1,11 @@
 #!/bin/bash
 source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+source "$(dirname "${BASH_SOURCE}")/lib/generator-help.sh"
 
-go build -o "${OS_OUTPUT_BINPATH}/defaulter-gen" "${PRJ_PREFIX}/vendor/k8s.io/code-generator/cmd/defaulter-gen"
+go build -o "${OS_OUTPUT_BINPATH}/defaulter-gen" "k8s.io/code-generator/cmd/defaulter-gen"
 
 ${OS_OUTPUT_BINPATH}/defaulter-gen \
                 --go-header-file "hack/boilerplate/boilerplate.go.txt" \
-                --input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api/v1alpha1" \
-		--extra-peer-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api/v1alpha1" \
-                --output-file-base zz_generated.defaults
+                --extra-peer-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api/v1alpha1" \
+                --output-file zz_generated.defaults.go \
+                $(find_dirs_containing_comment_tags "+k8s:defaulter-gen=")

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 'go1.18|go1.19|go1.20|go1.21|go1.22') ]]; 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-chart.sh

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

hack/verify-conversions.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+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 "${DESCHEDULER_ROOT}/_tmp/kube-verify.XXXXXX")"
+
+_deschedulertmp="${_tmpdir}"
+mkdir -p "${_deschedulertmp}"
+
+git archive --format=tar --prefix=descheduler/ "$(git write-tree)" | (cd "${_deschedulertmp}" && tar xf -)
+_deschedulertmp="${_deschedulertmp}/descheduler"
+
+pushd "${_deschedulertmp}" > /dev/null 2>&1
+./hack/update-generated-conversions.sh
+popd > /dev/null 2>&1
+
+pushd "${DESCHEDULER_ROOT}" > /dev/null 2>&1
+if ! _out="$(diff -Naupr pkg/ "${_deschedulertmp}/pkg/")"; then
+    echo "Generated output differs:" >&2
+    echo "${_out}" >&2
+    echo "Generated conversions verify failed. Please run ./hack/update-generated-conversions.sh"
+    exit 1
+fi
+popd > /dev/null 2>&1
+
+echo "Generated conversions verified."

hack/verify-deep-copies.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+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 "${DESCHEDULER_ROOT}/_tmp/kube-verify.XXXXXX")"
+
+_deschedulertmp="${_tmpdir}"
+mkdir -p "${_deschedulertmp}"
+
+git archive --format=tar --prefix=descheduler/ "$(git write-tree)" | (cd "${_deschedulertmp}" && tar xf -)
+_deschedulertmp="${_deschedulertmp}/descheduler"
+
+pushd "${_deschedulertmp}" > /dev/null 2>&1
+./hack/update-generated-deep-copies.sh
+popd > /dev/null 2>&1
+
+pushd "${DESCHEDULER_ROOT}" > /dev/null 2>&1
+if ! _out="$(diff -Naupr pkg/ "${_deschedulertmp}/pkg/")"; then
+    echo "Generated deep-copies output differs:" >&2
+    echo "${_out}" >&2
+    echo "Generated deep-copies verify failed. Please run ./hack/update-generated-deep-copies.sh"
+    exit 1
+fi
+popd > /dev/null 2>&1
+
+echo "Generated deep-copies verified."

hack/verify-defaulters.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
+_tmpdir="$(mktemp -d "${DESCHEDULER_ROOT}/_tmp/kube-verify.XXXXXX")"
+
+_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
+./hack/update-generated-defaulters.sh
+popd > /dev/null 2>&1
+
+pushd "${DESCHEDULER_ROOT}" > /dev/null 2>&1
+if ! _out="$(diff -Naupr pkg/ "${_deschedulertmp}/pkg/")"; then
+    echo "Generated defaulters output differs:" >&2
+    echo "${_out}" >&2
+    echo "Generated defaulters verify failed. Please run ./hack/update-generated-defaulters.sh"
+fi
+popd > /dev/null 2>&1
+
+echo "Generated Defaulters verified."

hack/verify-docs.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Copyright 2023 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
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+temp_dir=$(mktemp -d)
+
+go run -ldflags "-X main.docGenPath=${temp_dir}" ${SCRIPT_DIR}/doc-gen
+
+if ! _out="$(diff -Naupr ${SCRIPT_DIR}/../docs/cli "${temp_dir}")"; then
+    echo "Generated output differs:" >&2
+    echo "${_out}" >&2
+    echo "Generated conversions verify failed. Please run ./hack/update-docs.sh"
+    rm -rf ${temp_dir}
+    exit 1
+fi
+
+rm -rf ${temp_dir}

hack/verify-gofmt.sh

@@ -23,8 +23,8 @@ 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') ]]; then
-  echo "Unknown go version '${GO_VERSION}', skipping gofmt."
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.18|go1.19|go1.20|go1.21|go1.22') ]]; then
+  echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
   exit 1
 fi
 
@@ -45,7 +45,7 @@ find_files() {
     \) -name '*.go'
 }
 
-GOFMT="gofmt -s" 
+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: "

hack/verify-govet.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Copyright 2021 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+
+go vet ${OS_ROOT}/...

hack/verify-spelling.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# Copyright 2018 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script checks commonly misspelled English words in all files in the
+# working directory by client9/misspell package.
+# Usage: `hack/verify-spelling.sh`.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+export KUBE_ROOT
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+# Ensure that we find the binaries we build before anything else.
+export GOBIN="${OS_OUTPUT_BINPATH}"
+PATH="${GOBIN}:${PATH}"
+
+# Install tools we need
+pushd "${KUBE_ROOT}" >/dev/null
+  GO111MODULE=on go install github.com/client9/misspell/cmd/misspell
+popd >/dev/null
+
+# Spell checking
+# All the skipping files are defined in hack/.spelling_failures
+skipping_file="${KUBE_ROOT}/hack/.spelling_failures"
+failing_packages=$(sed "s| | -e |g" "${skipping_file}")
+git ls-files | grep -v -e "${failing_packages}" | xargs misspell -i "Creater,creater,ect" -error -o stderr

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."

keps/753-descheduling-framework/kep.yaml

@@ -0,0 +1,29 @@
+title: Descheduling framework
+kep-number: 753
+authors:
+  - "@ingvagabund"
+  - "@damemi"
+owning-sig: sig-scheduling
+status: provisional
+creation-date: 2024-04-08
+reviewers:
+  - "@ingvagabund"
+  - "@damemi"
+  - "@a7i"
+  - "@knelasevero"
+approvers:
+  - "@ingvagabund"
+  - "@damemi"
+  - "@a7i"
+  - "@knelasevero"
+#replaces:
+
+# The target maturity stage in the current dev cycle for this KEP.
+stage: alpha
+
+# The most recent milestone for which work toward delivery of this KEP has been
+# done. This can be the current (upcoming) milestone, if it is being actively
+# worked on.
+# latest-milestone: "v1.19"
+
+# disable-supported: true

kubernetes/base/configmap.yaml

@@ -0,0 +1,34 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: descheduler-policy-configmap
+  namespace: kube-system
+data:
+  policy.yaml: |
+    apiVersion: "descheduler/v1alpha2"
+    kind: "DeschedulerPolicy"
+    profiles:
+      - name: ProfileName
+        pluginConfig:
+        - name: "DefaultEvictor"
+        - name: "RemovePodsViolatingInterPodAntiAffinity"
+        - name: "RemoveDuplicates"
+        - name: "LowNodeUtilization"
+          args:
+            thresholds:
+              "cpu" : 20
+              "memory": 20
+              "pods": 20
+            targetThresholds:
+              "cpu" : 50
+              "memory": 50
+              "pods": 50
+        plugins:
+          balance:
+            enabled:
+              - "LowNodeUtilization"
+              - "RemoveDuplicates"
+          deschedule:
+            enabled:
+              - "RemovePodsViolatingInterPodAntiAffinity"

kubernetes/base/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - configmap.yaml
+  - rbac.yaml

kubernetes/base/rbac.yaml

@@ -0,0 +1,50 @@
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: descheduler-cluster-role
+rules:
+- apiGroups: ["events.k8s.io"]
+  resources: ["events"]
+  verbs: ["create", "update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["namespaces"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list", "delete"]
+- apiGroups: [""]
+  resources: ["pods/eviction"]
+  verbs: ["create"]
+- apiGroups: ["scheduling.k8s.io"]
+  resources: ["priorityclasses"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  verbs: ["create"]
+- apiGroups: ["coordination.k8s.io"]
+  resources: ["leases"]
+  resourceNames: ["descheduler"]
+  verbs: ["get", "patch", "delete"]
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: descheduler-sa
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: descheduler-cluster-role-binding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: descheduler-cluster-role
+subjects:
+  - name: descheduler-sa
+    kind: ServiceAccount
+    namespace: kube-system

kubernetes/cronjob/cronjob.yaml

@@ -0,0 +1,55 @@
+---
+apiVersion: batch/v1
+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: registry.k8s.io/descheduler/descheduler:v0.29.0
+            volumeMounts:
+            - mountPath: /policy-dir
+              name: policy-volume
+            command:
+              - "/bin/descheduler"
+            args:
+              - "--policy-config-file"
+              - "/policy-dir/policy.yaml"
+              - "--v"
+              - "3"
+            resources:
+              requests:
+                cpu: "500m"
+                memory: "256Mi"
+            livenessProbe:
+              failureThreshold: 3
+              httpGet:
+                path: /healthz
+                port: 10258
+                scheme: HTTPS
+              initialDelaySeconds: 3
+              periodSeconds: 10
+            securityContext:
+              allowPrivilegeEscalation: false
+              capabilities:
+                drop:
+                  - ALL
+              privileged: false
+              readOnlyRootFilesystem: true
+              runAsNonRoot: true
+          restartPolicy: "Never"
+          serviceAccountName: descheduler-sa
+          volumes:
+          - name: policy-volume
+            configMap:
+              name: descheduler-policy-configmap

kubernetes/cronjob/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../base
+  - cronjob.yaml

kubernetes/deployment/deployment.yaml

@@ -0,0 +1,62 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: descheduler
+  namespace: kube-system
+  labels:
+    app: descheduler
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: descheduler
+  template:
+    metadata:
+      labels:
+        app: descheduler
+    spec:
+      priorityClassName: system-cluster-critical
+      serviceAccountName: descheduler-sa
+      containers:
+        - name: descheduler
+          image: registry.k8s.io/descheduler/descheduler:v0.29.0
+          imagePullPolicy: IfNotPresent
+          command:
+            - "/bin/descheduler"
+          args:
+            - "--policy-config-file"
+            - "/policy-dir/policy.yaml"
+            - "--descheduling-interval"
+            - "5m"
+            - "--v"
+            - "3"
+          ports:
+          - containerPort: 10258
+            protocol: TCP
+          livenessProbe:
+            failureThreshold: 3
+            httpGet:
+              path: /healthz
+              port: 10258
+              scheme: HTTPS
+            initialDelaySeconds: 3
+            periodSeconds: 10
+          resources:
+            requests:
+              cpu: 500m
+              memory: 256Mi
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop:
+                - ALL
+            privileged: false
+            readOnlyRootFilesystem: true
+            runAsNonRoot: true
+          volumeMounts:
+            - mountPath: /policy-dir
+              name: policy-volume
+      volumes:
+      - name: policy-volume
+        configMap:
+          name: descheduler-policy-configmap

kubernetes/deployment/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../base
+  - deployment.yaml

kubernetes/job/job.yaml

@@ -0,0 +1,53 @@
+---
+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: registry.k8s.io/descheduler/descheduler:v0.29.0
+          volumeMounts:
+          - mountPath: /policy-dir
+            name: policy-volume
+          command:
+            - "/bin/descheduler"
+          args:
+            - "--policy-config-file"
+            - "/policy-dir/policy.yaml"
+            - "--v"
+            - "3"
+          resources:
+            requests:
+              cpu: "500m"
+              memory: "256Mi"
+          livenessProbe:
+            failureThreshold: 3
+            httpGet:
+              path: /healthz
+              port: 10258
+              scheme: HTTPS
+            initialDelaySeconds: 3
+            periodSeconds: 10
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop:
+                - ALL
+            privileged: false
+            readOnlyRootFilesystem: true
+            runAsNonRoot: true
+      restartPolicy: "Never"
+      serviceAccountName: descheduler-sa
+      volumes:
+      - name: policy-volume
+        configMap:
+          name: descheduler-policy-configmap

kubernetes/job/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../base
+  - job.yaml

metrics/metrics.go

@@ -0,0 +1,92 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package metrics
+
+import (
+	"sync"
+
+	"k8s.io/component-base/metrics"
+	"k8s.io/component-base/metrics/legacyregistry"
+	"sigs.k8s.io/descheduler/pkg/version"
+)
+
+const (
+	// DeschedulerSubsystem - subsystem name used by descheduler
+	DeschedulerSubsystem = "descheduler"
+)
+
+var (
+	PodsEvicted = metrics.NewCounterVec(
+		&metrics.CounterOpts{
+			Subsystem:      DeschedulerSubsystem,
+			Name:           "pods_evicted",
+			Help:           "Number of evicted pods, by the result, by the strategy, by the namespace, by the node name. 'error' result means a pod could not be evicted",
+			StabilityLevel: metrics.ALPHA,
+		}, []string{"result", "strategy", "profile", "namespace", "node"})
+
+	buildInfo = metrics.NewGauge(
+		&metrics.GaugeOpts{
+			Subsystem:      DeschedulerSubsystem,
+			Name:           "build_info",
+			Help:           "Build info about descheduler, including Go version, Descheduler version, Git SHA, Git branch",
+			ConstLabels:    map[string]string{"GoVersion": version.Get().GoVersion, "AppVersion": version.Get().Major + "." + version.Get().Minor, "DeschedulerVersion": version.Get().GitVersion, "GitBranch": version.Get().GitBranch, "GitSha1": version.Get().GitSha1},
+			StabilityLevel: metrics.ALPHA,
+		},
+	)
+
+	DeschedulerLoopDuration = metrics.NewHistogramVec(
+		&metrics.HistogramOpts{
+			Subsystem:      DeschedulerSubsystem,
+			Name:           "descheduler_loop_duration_seconds",
+			Help:           "Time taken to complete a full descheduling cycle",
+			StabilityLevel: metrics.ALPHA,
+			Buckets:        []float64{0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250, 500},
+		}, []string{})
+
+	DeschedulerStrategyDuration = metrics.NewHistogramVec(
+		&metrics.HistogramOpts{
+			Subsystem:      DeschedulerSubsystem,
+			Name:           "descheduler_strategy_duration_seconds",
+			Help:           "Time taken to complete Each strategy of the descheduling operation",
+			StabilityLevel: metrics.ALPHA,
+			Buckets:        []float64{0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100},
+		}, []string{"strategy", "profile"})
+
+	metricsList = []metrics.Registerable{
+		PodsEvicted,
+		buildInfo,
+		DeschedulerLoopDuration,
+		DeschedulerStrategyDuration,
+	}
+)
+
+var registerMetrics sync.Once
+
+// Register all metrics.
+func Register() {
+	// Register the metrics.
+	registerMetrics.Do(func() {
+		RegisterMetrics(metricsList...)
+	})
+}
+
+// RegisterMetrics registers a list of metrics.
+func RegisterMetrics(extraMetrics ...metrics.Registerable) {
+	for _, metric := range extraMetrics {
+		legacyregistry.MustRegister(metric)
+	}
+}

pkg/api/conversion.go

@@ -0,0 +1,17 @@
+/*
+Copyright 2023 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 api

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

@@ -1,48 +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},
-			AddInternalObjectsToScheme: deschedulerapi.AddToScheme,
-		},
-		announced.VersionToSchemeFunc{
-			v1alpha1.SchemeGroupVersion.Version: v1alpha1.AddToScheme,
-		},
-	).Announce(groupFactoryRegistry).RegisterAndEnable(registry, scheme); err != nil {
-		panic(err)
-	}
-}