docker-multiarch-publish.yml

name: Docker multiarch publish
# from https://github.com/marklagendijk/node-toogoodtogo-watcher/blob/master/.github/workflows/docker-multiarch-publish.yml

on:
  push:
    branches: [ master ]
  workflow_dispatch: # Manual trigger

jobs:
  buildandpush:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      # https://github.com/docker/setup-qemu-action#usage
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      # https://github.com/marketplace/actions/docker-setup-buildx
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      # https://github.com/docker/login-action#docker-hub
      - name: Login to Docker Hub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      # https://github.com/docker/build-push-action#multi-platform-image
      - name: Build and push to Docker Hub
        uses: docker/build-push-action@v2
        with:
          context: .
          file: Dockerfile
          platforms: linux/amd64,,linux/arm64
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_REPOSITORY }}:latest