release.yml

# Run on tag push.
# Note: Additionally, create the release branch.
on:
  push:
    tags:
      - v*

permissions:
  contents: read

env:
  GO_VERSION_MATRIX: '"go-version": [ "^1.21", "latest" ]"'
  GOLANGCI_LINT_VERSION: "v1.54.2"
  E2E_SETUP_KIND: yes
  E2E_SETUP_KUBECTL: yes

jobs:
  setup:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - id: set-matrix
        run: echo "::set-output name=matrix::${{ env.GO_VERSION_MATRIX }}"
  release:
    needs: setup
    strategy:
      matrix: ${{fromJson(needs.setup.outputs.matrix)}}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout into the repository in a new branch
        uses: actions/checkout@v4
        with:
          ref: release-${{ github.ref }}
          repository: ${{ github.event.repository.full_name }}
      - name: Set up the Go@${{ matrix.go-version }} environment
        uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
      - name: Install tools
        run: make install-tools
      - name: Get the pushed tag
        id: get_tag
        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
      - name: Update the VERSION manifest to the pushed tag
        run: echo "${{ steps.get_tag.outputs.tag }}" > 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: 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: Validate manifests
        run: make validate-manifests
      - name: Validate docs
        run: make validate-docs
      - name: Validate go modules
        run: make validate-modules
      - name: Run rule tests
        run: PROMTOOL_CLI=./promtool make install-promtool test-rules
      - name: Run unit tests
        run: make test-unit
      - name: Benchmark tests
        run: make test-benchmark-compare
      - name: Run end-to-end tests
        run: make e2e
      - name: Commit the changes
        run: |
          git config --local user.email "release-bot@ksm.k8s.io"
          git config --local user.name "KSM Release Bot"
          git add .
          git commit -m "chore: Cut ${{ steps.get_tag.outputs.tag }}"
      - name: Create a pull request
        uses: peter-evans/create-pull-request@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "chore: Cut ${{ steps.get_tag.outputs.tag }}"
          title: "chore: Cut ${{ steps.get_tag.outputs.tag }}"
          body: "This PR was automatically created by the release workflow."
          branch: release-${{ steps.get_tag.outputs.tag }}
          base: release-${{ steps.get_tag.outputs.tag }}
          reviewers: "sig-instrumentation-approvers"
          assignees: "sig-instrumentation-leads"
          draft: false