From 9923a5f9fcaa47e6f00ed1f4f4f781462508ed7e Mon Sep 17 00:00:00 2001
From: Pranshu Srivastava <rexagod@gmail.com>
Date: Mon, 19 Feb 2024 13:33:09 +0530
Subject: [PATCH] chore: automate release workflow

Signed-off-by: Pranshu Srivastava <rexagod@gmail.com>
---
 .github/PULL_REQUEST_TEMPLATE.md       |  6 ++
 .github/workflows/release.yml          | 86 ++++++++++++++++++++++++++
 CHANGELOG.md                           | 18 ++++++
 Makefile                               |  2 +-
 README.md                              |  2 +-
 go.mod                                 |  3 -
 go.sum                                 |  6 --
 scripts/generate-release-notes.sh      | 21 +++++++
 scripts/update-compatibility-matrix.sh | 53 ++++++++++++++++
 tools/tools.go                         |  2 +-
 10 files changed, 187 insertions(+), 12 deletions(-)
 create mode 100644 .github/workflows/release.yml
 create mode 100755 scripts/generate-release-notes.sh
 create mode 100755 scripts/update-compatibility-matrix.sh

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 9ee1c73c4e..360995809d 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -11,3 +11,9 @@
 
 **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
 Fixes #
+
+<!-- In case of the change being user-facing, an entry should be appended to the latest unreleased section in CHANGELOG.md.
+    The expected format is as follows: 
+    - [ENHANCEMENT/CHANGE/BUGFIX/FEATURE]: <PR TITLE> by @PR_AUTHOR in https://github.com/kubernetes/kube-state-metrics/pull/<PR NUMBER> (avoid using #<PR NUMBER> for inter-VCS compatibility), for instance:
+    - [ENHANCEMENT]: Add support for Windows by @k8s-ci-robot in https://github.com/kubernetes/kube-state-metrics/pull/1234
+- [ ] I have added a CHANGELOG entry for this change.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000000..7e967a70c4
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,86 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - v*
+
+permissions:
+  contents: write
+  pull-requests: write
+
+env:
+  GO_VERSION: "^1.21"
+  GOLANGCI_LINT_VERSION: "v1.54.2"
+  E2E_SETUP_KIND: yes
+  E2E_SETUP_KUBECTL: yes
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Extract pushed release tag
+        id: extract_tag
+        run: echo "::set-output name=tag::${GITHUB_REF##*/}"
+      - name: Checkout into the corresponding release branch
+        uses: actions/checkout@v4
+      - name: Create VCS sandbox
+        run: |
+          git checkout -b release-${{ steps.extract_tag.outputs.tag }}
+      - name: Set up the Go@${{ env.GO_VERSION }} environment
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+      - name: Get the pushed tag
+        id: get_tag
+        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
+      - name: Store the previous tag
+        id: get_previous_tag
+        run: echo ::set-output name=previous_tag::$(cat VERSION | cut -d. -f1,2)
+      - name: Update the VERSION manifest to the pushed tag
+        run: echo "${{ steps.get_tag.outputs.tag }}" | sed 's/^v//' > VERSION
+      - name: Update the compatibility matrix (README.md)
+        run: ./scripts/update-compatibility-matrix.sh
+      - name: Generate the release notes (CHANGELOG.md)
+        run: ./scripts/generate-release-notes.sh
+      - name: Install tools
+        run: make install-tools
+      - name: Lint
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | \
+          sh -s -- -b $(go env GOPATH)/bin ${{ env.GOLANGCI_LINT_VERSION }}
+          make lint-fix
+      - name: Generate manifests
+        run: make examples
+      - name: Run rule tests
+        run: PROMTOOL_CLI=./promtool make install-promtool test-rules
+      - name: Run unit tests
+        run: make test-unit
+      - name: Run end-to-end tests
+        run: make e2e
+      - name: Update the remote and commit the changes
+        run: |
+          git config --local user.email "ksm-release-bot@mock-k8s.io"
+          git config --local user.name "KSM Release Bot"
+          git add .
+          git commit -m "chore: Cut ${{ steps.get_tag.outputs.tag }}"
+          git push origin HEAD:release-${{ steps.get_tag.outputs.tag }} --force-with-lease
+      - name: Benchmark tests
+        run: LATEST_RELEASE_BRANCH=release-${{ steps.get_previous_tag.outputs.previous_tag }} make test-benchmark-compare
+      - name: Validate docs
+        run: make doccheck
+      - name: Validate manifests
+        run: make validate-manifests
+      - name: Validate go modules
+        run: make validate-modules
+      - name: Create a pull request
+        run: |
+          gh pr create \
+            --title "chore: Cut ${{ steps.get_tag.outputs.tag }}" \
+            --body "This PR was automatically created by the release workflow, and should be targeted to the corresponding release branch." \
+            --base main \
+            --head release-${{ steps.get_tag.outputs.tag }}
+            --reviewer @sig-instrumentation-approvers \
+            --assignee @sig-instrumentation-leads
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 205f275ab1..239f52c035 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,21 @@
+## v2.11.0 / 2024-03-04
+
+### Note
+
+This release builds with Golang `v1.21.7`.
+
+- [ENHANCEMENT] Add OpenSSF Scorecard to README by @dalehenries in <https://github.com/kubernetes/kube-state-metrics/pull/2277>
+- [ENHANCEMENT] Generate OpenVX data for every release by @shafeeqes in <https://github.com/kubernetes/kube-state-metrics/pull/2276>
+- [ENHANCEMENT] Add restartPolicy to `kube_pod_init_container_info` metric by @changhyuni in <https://github.com/kubernetes/kube-state-metrics/pull/2240>
+- [FEATURE] Add `kube_node_status_addresses` metric by @stonith in <https://github.com/kubernetes/kube-state-metrics/pull/2252>
+- [FEATURE] Add namespace label to `endpointslice` metrics by @mrueg in <https://github.com/kubernetes/kube-state-metrics/pull/2266>
+- [FEATURE] Add opt-in `kube_persistentvolume_csi_attributes` metric by @machadovilaca in <https://github.com/kubernetes/kube-state-metrics/pull/2133>
+- [FEATURE] Add new metric `kube_pod_scheduler` metric by @adinhodovic in <https://github.com/kubernetes/kube-state-metrics/pull/2222>
+- [FEATURE] Support filtering annotations allow-list by `*` by @xonvanetta in <https://github.com/kubernetes/kube-state-metrics/pull/2234>
+- [ENHANCEMENT] Support scraping pod metrics that are still in scheduling status and have no assigned nodes by @mickeyzzc in <https://github.com/kubernetes/kube-state-metrics/pull/2217>
+- [FEATURE] Add backend resource info for `kube_ingress_path` by @rohitphatak in <https://github.com/kubernetes/kube-state-metrics/pull/2109>
+
+
 ## v2.10.1 / 2023-10-09
 
 ### Note
diff --git a/Makefile b/Makefile
index 885154c430..76f86c6ea5 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ REGISTRY ?= gcr.io/k8s-staging-kube-state-metrics
 TAG_PREFIX = v
 VERSION = $(shell cat VERSION)
 TAG ?= $(TAG_PREFIX)$(VERSION)
-LATEST_RELEASE_BRANCH := release-$(shell grep -ohE "[0-9]+.[0-9]+" VERSION)
+LATEST_RELEASE_BRANCH ?= release-$(shell grep -ohE "[0-9]+.[0-9]+" VERSION)
 BRANCH = $(strip $(shell git rev-parse --abbrev-ref HEAD))
 DOCKER_CLI ?= docker
 PROMTOOL_CLI ?= promtool
diff --git a/README.md b/README.md
index 702f7cc072..05854bc447 100644
--- a/README.md
+++ b/README.md
@@ -270,7 +270,7 @@ To have Prometheus discover kube-state-metrics instances it is advised to create
 kubectl create clusterrolebinding cluster-admin-binding --clusterrole=cluster-admin --user=$(gcloud info --format='value(config.account)')
 ```
 
-Note that your GCP identity is case sensitive but `gcloud info` as of Google Cloud SDK 221.0.0 is not. This means that if your IAM member contains capital letters, the above one-liner may not work for you. If you have 403 forbidden responses after running the above command and `kubectl apply -f examples/standard`, check the IAM member associated with your account at https://console.cloud.google.com/iam-admin/iam?project=PROJECT_ID. If it contains capital letters, you may need to set the --user flag in the command above to the case-sensitive role listed at https://console.cloud.google.com/iam-admin/iam?project=PROJECT_ID.
+Note that your GCP identity is case sensitive but `gcloud info` as of Google Cloud SDK 221.0.0 is not. This means that if your IAM member contains capital letters, the above one-liner may not work for you. If you have 403 forbidden responses after running the above command and `kubectl apply -f examples/standard`, check the IAM member associated with your account at <https://console.cloud.google.com/iam-admin/iam?project=PROJECT_ID>. If it contains capital letters, you may need to set the --user flag in the command above to the case-sensitive role listed at <https://console.cloud.google.com/iam-admin/iam?project=PROJECT_ID>.
 
 After running the above, if you see `Clusterrolebinding "cluster-admin-binding" created`, then you are able to continue with the setup of this service.
 
diff --git a/go.mod b/go.mod
index f4f719f041..df9e0739e9 100644
--- a/go.mod
+++ b/go.mod
@@ -27,7 +27,6 @@ require (
 )
 
 require (
-	github.com/Kunde21/markdownfmt/v3 v3.1.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
@@ -54,7 +53,6 @@ require (
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
@@ -71,7 +69,6 @@ require (
 	github.com/spf13/cast v1.6.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
-	github.com/yuin/goldmark v1.3.5 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/crypto v0.18.0 // indirect
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
diff --git a/go.sum b/go.sum
index d45803d9d3..327ea86e07 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,3 @@
-github.com/Kunde21/markdownfmt/v3 v3.1.0 h1:KiZu9LKs+wFFBQKhrZJrFZwtLnCCWJahL+S+E/3VnM0=
-github.com/Kunde21/markdownfmt/v3 v3.1.0/go.mod h1:tPXN1RTyOzJwhfHoon9wUr4HGYmWgVxSQN6VBJDkrVc=
 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=
@@ -80,8 +78,6 @@ github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0V
 github.com/magiconair/properties v1.8.7/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
-github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -147,8 +143,6 @@ github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8
 github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.3.5 h1:dPmz1Snjq0kmkz159iL7S6WzdahUTHnHB5M56WFVifs=
-github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
diff --git a/scripts/generate-release-notes.sh b/scripts/generate-release-notes.sh
new file mode 100755
index 0000000000..c0fd5c9dcd
--- /dev/null
+++ b/scripts/generate-release-notes.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+set -exuo pipefail
+
+# Determine the OS to use the correct version of sed.
+# shellcheck disable=SC2209
+SED=sed
+if [[ $(uname) == "Darwin" ]]; then
+  # Check if gnu-sed is installed.
+  if ! command -v gsed &> /dev/null; then
+      echo "gnu-sed is not installed. Please install it using 'brew install gnu-sed'." >&2
+      exit 1
+  fi
+  SED=gsed
+fi
+
+# Get the latest tag from the git repository.
+latest_tag=$(git describe --tags --abbrev=0)
+
+# Replace the first line of the CHANGELOG.md file with the expected metadata.
+# NOTE: This is done to ensure the latest release header is consistent, and will replace the manual placeholder.
+$SED -i "1s/.*/## v$latest_tag / $(date +'%Y-%m-%d')/" CHANGELOG.md
diff --git a/scripts/update-compatibility-matrix.sh b/scripts/update-compatibility-matrix.sh
new file mode 100755
index 0000000000..b5bdfe3f94
--- /dev/null
+++ b/scripts/update-compatibility-matrix.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+set -exuo pipefail
+
+# Determine the OS to use the correct version of sed and awk.
+# shellcheck disable=SC2209
+SED=sed
+# shellcheck disable=SC2209
+AWK=awk
+if [[ $(uname) == "Darwin" ]]; then
+  # Check if gnu-sed and gawk are installed.
+  if ! command -v gsed &> /dev/null; then
+      echo "gnu-sed is not installed. Please install it using 'brew install gnu-sed'." >&2
+      exit 1
+  fi
+  if ! command -v gawk &> /dev/null; then
+      echo "gawk is not installed. Please install it using 'brew install gawk'." >&2
+      exit 1
+  fi
+  AWK=gawk
+  SED=gsed
+fi
+
+# Fetch the latest tag.
+git fetch --tags
+latest_tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+
+# Determine if it's a patch release or not (minor and major releases are handled the same way in the compatibility matrix).
+if [[ $latest_tag =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+    IFS='.' read -ra TAG <<< "$latest_tag"
+    if [[ ${#TAG[@]} -eq 2 || ${#TAG[@]} -eq 3 && ${TAG[2]} -eq 0 ]]; then
+        # Prep for a non-patch release.
+        # shellcheck disable=SC2016
+        main_client_go_version=$($AWK '/\| \*\*main\*\*/ {print $4}' README.md)
+        $SED -i "/|\s*\*\*main\*\*\s*|\s*$main_client_go_version\s*|/i| \*\*$latest_tag\*\* | $main_client_go_version |" README.md
+        # shellcheck disable=SC2016
+        oldest_supported_client_go_version=$($AWK '/\| kube-state-metrics \| Kubernetes client-go Version \|/ {getline; getline; print $4; exit}' README.md)
+        # Remove the first row (i.e., the oldest supported client-go version).
+        $SED -i "/|\s*\*\*.*\*\*\s*|\s*$oldest_supported_client_go_version\s*|/d" README.md
+    else
+        # Prep for a patch release.
+        minor_release="${TAG[0]}.${TAG[1]}"
+        # Get the client-go version of the corresponding minor release row (that needs to be updated with the patch release version).
+        # shellcheck disable=SC2016
+        last_client_go_version=$($AWK '/\| kube-state-metrics \| Kubernetes client-go Version \|/ {getline; getline; getline; getline; getline; getline; print $4; exit}' README.md)
+        # Update the row with the latest tag and client-go version.
+        $SED -i "s/|\s*\*\*$minor_release.*\*\*\s*|\s*$last_client_go_version\s*|/| \*\*$latest_tag\*\* | $last_client_go_version |/" README.md
+    fi
+else
+    echo -e "Bad tag format: $latest_tag, expected one of the following formats:\n
+      * vMAJOR.MINOR (non-patch release)\n
+      * vMAJOR.MINOR.PATCH (patch release)"
+    exit 1
+fi
diff --git a/tools/tools.go b/tools/tools.go
index 0f2db0a141..bd493c9915 100644
--- a/tools/tools.go
+++ b/tools/tools.go
@@ -20,7 +20,7 @@ limitations under the License.
 package tools
 
 import (
-	_ "github.com/Kunde21/markdownfmt/v3"
+	_ "github.com/Kunde21/markdownfmt/v3/markdown"
 	_ "github.com/brancz/gojsontoyaml"
 	_ "github.com/campoy/embedmd"
 	_ "github.com/google/go-jsonnet/cmd/jsonnet"