name: Build and Upload GCP CCM container image
env:
  REGISTRY: ghcr.io
on: [workflow_dispatch]

jobs:
  build-ccm-gcp:
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      packages: write
    strategy:
      matrix:
        version: [v26.0.1]
        # TODO: Once issue is closed upgrade older versions, rebuild, and update versions.go
        # https://github.com/kubernetes/cloud-provider-gcp/issues/451
        # version: [v26.0.1, v25.5.0, v24.0.0]
        include:
          - version: v26.0.1
            latest: true
    steps:
      - name: Checkout kubernetes/cloud-provider-gcp
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
        with:
          repository: "kubernetes/cloud-provider-gcp"
          ref: refs/tags/ccm/${{ matrix.version }}

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@507c2f2dc502c992ad446e3d7a5dfbe311567a96 # v4.3.0
        with:
          images: |
            ${{ env.REGISTRY }}/edgelesssys/cloud-provider-gcp
          flavor: |
            latest=${{ matrix.latest || false }}
          tags: |
            type=semver,pattern=v{{version}},value=${{ matrix.version }}
            type=semver,pattern=v{{major}}.{{minor}},value=${{ matrix.version }}
            type=semver,pattern=v{{major}},value=${{ matrix.version }}

      - name: Log in to the Container registry
        id: docker-login
        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a # tag=v2.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build CCM
        run: |
          bazelisk build //cmd/cloud-controller-manager:cloud-controller-manager

      - name: Copy CCM
        run: |
          # support new and old bazel output paths
          cp ./bazel-bin/cmd/cloud-controller-manager/cloud-controller-manager_/cloud-controller-manager ./cloud-controller-manager || \
          cp ./bazel-bin/cmd/cloud-controller-manager/linux_amd64_pure_stripped/cloud-controller-manager ./cloud-controller-manager

      - name: Prepare Dockerfile
        run: |
          cat > Dockerfile <<EOF
          FROM scratch
          COPY ./cloud-controller-manager /cloud-controller-manager
          EOF

      - name: Build and push container image
        id: build
        uses: docker/build-push-action@1104d471370f9806843c095c1db02b5a90c5f8b6 # v3.3.1
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}