name: Docker

on:
  push:
    # Publish `main` as Docker `latest` image.
    branches:
      - master

    # Publish `v1.2.3` tags as releases.
    tags:
      - v*
env:
  BUILD_VERSION: "2021.9.0"
  IMAGE_NAME: cloudflared
  DOCKER_CLI_EXPERIMENTAL: enabled
  REPOSITORY: ${{ github.actor }}/${{ github.workflow }} 

jobs:
  # Push image to GitHub Packages.
  # See also https://docs.docker.com/docker-hub/builds/
  push:
    # Ensure test job passes before pushing image.
    runs-on: ubuntu:20.04
    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 Docker metadata
        id: docker_meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ env.REPOSITORY }}
          labels: |
            org.opencontainers.image.version=$VERSION
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.title=${{ env.REPOSITORY }}


      - 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' }}
          context: ${{ github.workflow }}
          platforms: linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6,linux/ppc64le
          build-args: $VERSION
          cache-from: type=gha, scope=${{ github.workflow }}
          cache-to: type=gha, scope=${{ github.workflow }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          tags: |
            docker.io/${{ env.REPOSITORY }}:${{ env.BUILD_VERSION }}
            docker.io/${{ env.REPOSITORY }}:latest
            ghcr.io/${{ env.REPOSITORY }}:${{ env.BUILD_VERSION }}
            ghcr.io/${{ env.REPOSITORY }}:latest