publish.yaml

name: Publish Image and Chart # and create GitHub release if v* tag

on:
  push:
    branches: [ main ]
    tags: [ "v*" ]
  pull_request:
    branches: [ main ]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  docker:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    outputs:
      version: ${{ steps.version.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup version info
        id: version
        run: |
          if [[ "${{ startsWith(github.ref, 'refs/tags/v') }}" == "true" ]]; then
            echo "version=${{ github.ref_name }}" >> $GITHUB_OUTPUT
          else
            echo "version=$(date +%Y%m%d-%H%M%S)-g$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
          fi

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and Push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          platforms: linux/amd64,linux/arm64
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}

  chart:
    name: Publish chart
    runs-on: ubuntu-latest
    if: github.event_name != 'pull_request'
    needs: [docker]
    env:
      APP_VERSION: ${{ needs.docker.outputs.version }}
      CHART_REGISTRY: "ghcr.io/${{ github.repository_owner }}/charts"
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # Fetching all history as we may use the latest tag for versioning
          # Unfortunately, just using 'fetch-tags: true' on the actions/checkout configuration
          # above doesn't get what we need; see https://github.com/actions/checkout/issues/1471
          fetch-depth: 0

      - name: Install helm
        uses: Azure/setup-helm@v4
        with:
          version: v3.14.0

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.23.x'
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Determine chart version
        run: |
          if [[ "${{ startsWith(github.ref, 'refs/tags/v') }}" == "true" ]]; then
            # NOTE: We remove the leading 'v' to comply with helm's versioning requirements
            echo "CHART_VERSION=$(echo -n ${{ github.ref_name }} | sed -rn 's/(v)?(.*)/\2/p')" >> $GITHUB_ENV
          else
            # NOTE: 'git describe --tags --abbrev=0' always seems to return a commit; hence approach used below
            echo "CHART_VERSION=$(git describe --tags $(git rev-list --tags --max-count=1) | sed -rn 's/(v)?(.*)/\2/p')-${{ env.APP_VERSION }}" >> $GITHUB_ENV
          fi

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build chart
        run: make helm-generate

      - name: Package chart
        run: make dist

      - name: Lint packaged chart
        run: |
          # Remove staged chart directory and lint the packaged version
          rm -rf _dist/spin-operator-${{ env.CHART_VERSION }}
          helm lint _dist/spin-operator-${{ env.CHART_VERSION }}.tgz

      - name: Upload chart and manifests as GitHub artifact
        uses: actions/upload-artifact@v4
        with:
          name: spin-operator
          path: _dist

      - name: Publish chart
        run: make helm-publish

      - name: Artifact summary - ${{ env.RELEASE_VERSION }}
        run: |
          echo '### Spin Operator artifacts published:' >> $GITHUB_STEP_SUMMARY
          echo '- `Docker image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.APP_VERSION }}`' >> $GITHUB_STEP_SUMMARY
          echo '- `Helm chart reference: ${{ env.CHART_REGISTRY }}/spin-operator`' >> $GITHUB_STEP_SUMMARY
          echo '- `Helm chart version: ${{ env.CHART_VERSION }}`' >> $GITHUB_STEP_SUMMARY

  release:
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v')
    needs: [chart]
    env:
      GH_TOKEN: ${{ github.token }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: download release assets
        uses: actions/download-artifact@v4
        with:
          name: spin-operator
          path: _dist

      - name: check if pre-release
        shell: bash
        run: |
          if [[ ! "${{ github.ref_name }}" =~ ^v[0-9]+.[0-9]+.[0-9]+$ ]]
          then
            echo "PRERELEASE=--prerelease" >> "$GITHUB_ENV"
          fi

      - name: create GitHub release
        run: |
          gh release create ${{ github.ref_name }} _dist/* \
            --title ${{ github.ref_name }} \
            --generate-notes ${{ env.PRERELEASE }}