name: Build mailcow backup image

on:
  schedule:
    # At 00:00 on Sunday
    - cron: "0 0 * * 0"
  workflow_dispatch: # Allow to run workflow manually

jobs:
  docker_image_build:
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v5

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to GHCR
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          file: data/Dockerfiles/backup/Dockerfile
          push: true
          tags: ghcr.io/mailcow/backup:latest