name: Docker

on:
  release:
    types: [published]
env:
  BUILD_VERSION: ${{ github.ref }}
  IMAGE_NAME: cloudflared
  DOCKER_CLI_EXPERIMENTAL: enabled
  REPOSITORY: ${{ github.repository }}

jobs:
  # Push image to GitHub Packages.
  # See also https://docs.docker.com/docker-hub/builds/
  push:
    runs-on: ubuntu-latest
    if: ${{ github.event_name != 'pull_request' }}
    steps:
      - name: Source checkout
        uses: actions/checkout@v2.3.4 
 
      - name: Setup QEMU
        id: qemu
        uses: docker/setup-qemu-action@v1.2.0
      
      - name: Setup Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1

      - name: set version
        run : |
            VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,') #Get the tag or branch name (eg master or 2021.9.0)
            REPOSITORY=$(echo $REPOSITORY | tr '[A-Z]' '[a-z]') #make all lowercase
            # Strip "v" prefix from tag name or use short sha 
            [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//') || VERSION=$(git rev-parse --short "$GITHUB_SHA")
            #Create a GA variable to use in other steps
            echo "app_version=$VERSION" >> $GITHUB_ENV
            echo "REPOSITORY=$REPOSITORY" >> $GITHUB_ENV

      - name: Set Docker metadata
        id: docker_meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ env.REPOSITORY }}
          labels: |
            org.opencontainers.image.version=${{env.app_version }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.title=${{ env.REPOSITORY }}

      - name: GitHub login
        if: ${{ github.event_name != 'pull_request' }}
        uses: docker/login-action@v1.10.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: DockerHub login
        if: ${{ github.event_name != 'pull_request' }}
        uses: docker/login-action@v1.10.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}      
      - name: Build and push
        uses: docker/build-push-action@v2.7.0
        with:
          push: ${{ github.event_name != 'pull_request' }}
          platforms: linux/amd64
          build-args: ${{ env.app_version }}
          cache-from: type=gha, scope=${{ github.workflow }}
          cache-to: type=gha, scope=${{ github.workflow }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          tags: |
            ${{env.REPOSITORY}}:${{ env.app_version }}
            ${{env.REPOSITORY}}:latest
            ghcr.io/${{ env.REPOSITORY }}:${{ env.app_version }}
            ghcr.io/${{ env.REPOSITORY }}:latest