docker_branches.yml

name: Publish Docker image
on:
  push:
    branches-ignore:
    - 'main'

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v3
      -
        name: Sanitize Repo Name for Tagging
        run: echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]' | (read; echo REPO_LOWER=$REPLY) >> $GITHUB_ENV
      -
        name: Docker meta
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: |
            ${{ env.REPO_LOWER }}
            ghcr.io/${{ env.REPO_LOWER }}
          tags: |
            type=ref,event=branch,prefix=branch-
            type=ref,event=pr
      - 
        name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      - 
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - 
        name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ secrets.GH_USERNAME }}
          password: ${{ secrets.GH_TOKEN }}
      - name: Push to Docker Hub
        uses: docker/build-push-action@v4
        with:
          push: true
          tags: |
            ${{ steps.meta.outputs.tags }}