# require the secrets DOCKER_HUB_PASSWORD
 
name: Release Docker Image
on:
  push:
    tags:
      - v*
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run tests
        run: |
          if [ -f docker-compose.test.yml ]; then
            docker-compose --file docker-compose.test.yml build
            docker-compose --file docker-compose.test.yml run sut
          else
            docker build . --file Dockerfile
          fi
  push:
    runs-on: ubuntu-latest
    if: github.event_name == 'push'
    steps:
      - name: Set up Checkout
        uses: actions/checkout@v2
      - name: Install Buildx and QEMU
        run: |
          export DOCKER_BUILDKIT=1
          docker build --platform=local -o . git://github.com/docker/buildx
          mkdir -p ~/.docker/cli-plugins
          mv buildx ~/.docker/cli-plugins/docker-buildx
          docker run --rm --privileged multiarch/qemu-user-static:latest --reset -p yes --credential yes
          docker buildx create --use --name build --node build --driver-opt network=host
      - name: Log in to Docker Hub
        env:
          DOCKER_USERNAME: ${{ github.actor }}
          DOCKER_PASSWORD: ${{ secrets.DOCKER_HUB_PASSWORD }}
        run: |
          echo "${DOCKER_PASSWORD}" | docker login --username ${DOCKER_USERNAME} --password-stdin
      - name: Build and push Docker image
        env:
          DOCKER_USERNAME: ${{ github.actor }}
          DOCKER_IMAGE_PLATFORM: linux/amd64,linux/arm/v7,linux/arm64
          REPOSITORY_NAME: ${{ github.repository }}
        run: |
          IFS='/' read -ra repository_name_array <<<"$REPOSITORY_NAME"
          DOCKER_IMAGE_NAME=$(echo $DOCKER_USERNAME/${repository_name_array[1]} | tr '[:upper:]' '[:lower:]')
          DOCKER_IMAGE_VERSION=${GITHUB_REF#refs/*/}
          docker buildx build \
            --platform "$DOCKER_IMAGE_PLATFORM" \
            --output "type=image,push=true" \
            --tag "$DOCKER_IMAGE_NAME":"$DOCKER_IMAGE_VERSION" \
            --tag "$DOCKER_IMAGE_NAME":latest \
            --file ./Dockerfile .