main.yml

name: publish-to-docker

on:
  push:
    branches:
      - "master"

jobs:
  publish:
    if: "!contains(github.event.head_commit.message, 'skip ci')"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        name: Check out code

      - name: Set version
        run: echo LIGHTTUBE_VERSION=`date +%Y%m%d` >> $GITHUB_ENV

      - name: Check version
        run: echo Building version ${{ env.LIGHTTUBE_VERSION }}
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
        with:
            platforms: linux/amd64,linux/arm64
            driver-opts: | 
              image=moby/buildkit:v0.10.6
      -
        name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      -
        name: Build and push
        uses: docker/build-push-action@v3
        with:
          push: true
          platforms: linux/arm64,linux/amd64
          tags: ${{ secrets.DOCKER_USERNAME }}/lighttube:latest,${{ secrets.DOCKER_USERNAME }}/lighttube:${{ env.LIGHTTUBE_VERSION }}