image-push-release.yml

name: "Image push release"
on:
  push:
    tags:
      - v*
env:
  REGISTRY: "ghcr.io"
  OPERATOR_IMAGE_NAME: "maintenance-operator"
jobs:
  image-build-push:
    name: Image build and push
    runs-on: ubuntu-latest
    steps:
      - name: Set repository owner as lower-case output variable
        id: repo_owner
        run: echo REPO_OWNER=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
      - name: Check out code into the Go module directory
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Docker meta
        id: docker_meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.REPO_OWNER }}/${{ env.OPERATOR_IMAGE_NAME }}
          tags: |
            type=ref,event=tag
          flavor: |
            latest=false
      - name: Build and push container image
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          file: ./Dockerfile
      - name: Determine version, tag, and base branch
        run: |
          git_tag=${{ github.ref_name }}
          echo VERSION_WITH_PREFIX=$git_tag        >> $GITHUB_ENV
          echo VERSION_WITHOUT_PREFIX=${git_tag:1} >> $GITHUB_ENV  # without the 'v' prefix
      - name: Lookup image digest
        run: |
          operator_digest=$(skopeo inspect docker://$REGISTRY/$REPO_OWNER/$OPERATOR_IMAGE_NAME:$VERSION_WITH_PREFIX | jq -r .Digest)
          echo $operator_digest | wc -w | grep 1  # verifies value not empty
          echo OPERATOR_DIGEST=$operator_digest >> $GITHUB_ENV
      - name: Make bundle
        env:
          IMG: ${{ env.REGISTRY }}/${{ env.REPO_OWNER }}/${{ env.OPERATOR_IMAGE_NAME }}@${{ env.OPERATOR_DIGEST }}
          BUNDLE_IMG: ${{ env.REGISTRY }}/${{ env.REPO_OWNER }}/${{ env.OPERATOR_IMAGE_NAME }}-bundle:${{ env.VERSION_WITH_PREFIX }}
          VERSION: ${{ env.VERSION_WITHOUT_PREFIX }}
        run: |
          version_major_minor=$(echo $VERSION_WITH_PREFIX | grep -Eo 'v[0-9]+\.[0-9]+')
          export CHANNELS=stable,$version_major_minor
          export DEFAULT_CHANNEL=$version_major_minor
          make bundle bundle-build bundle-push