miniflux/.github/workflows/docker.yml

name: Docker
on:
  schedule:
    - cron: '0 1 * * *'
  push:
    tags:
      - '*.*.*'
jobs:
  multi:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Generate Docker tag
        id: docker_tag
        run: |
          DOCKER_IMAGE=miniflux/miniflux
          DOCKER_VERSION=dev
          if [ "${{ github.event_name }}" = "schedule" ]; then
          DOCKER_VERSION=nightly
          elif [[ $GITHUB_REF == refs/tags/* ]]; then
          DOCKER_VERSION=${GITHUB_REF#refs/tags/}
          fi
          TAGS="${DOCKER_IMAGE}:${DOCKER_VERSION}"
          echo ::set-output name=version::${DOCKER_VERSION}
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to DockerHub
        uses: docker/login-action@v1 
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./packaging/docker/Dockerfile
          platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
          push: true
          tags: ${{ steps.docker_tag.outputs.tags }}