mirror-stable-docker-images.yaml

name: Sync GHCR images with stable Docker Hub images
on:
  schedule:
    # run on Monday at 7
    - cron:  '0 7 * * 1'
  workflow_dispatch:
    inputs:
      ghcr_org:
        type: string
        required: false
        default: flatcar
        description: |
          The name of the GitHub org where the docker images should be pushed.

jobs:
  mirror-stable-docker-images:
    permissions:
      packages: write
    strategy:
      matrix:
        package: [nginx,busybox]
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - name: Check out scripts
        uses: actions/checkout@v4
      - name: Login to GitHub Container Registry (ghcr)
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Mirror ${{ matrix.package }} stable image as latest to GHCR
        env:
          GHCR_ORG: ${{ inputs.ghcr_org }}
          PACKAGE: ${{ matrix.package }}
        run: .github/workflows/mirror-to-ghcr.sh -t latest -o "${GHCR_ORG:-flatcar}" "${PACKAGE}" stable