name: Create and publish a Docker image

on:
  push:
    tags:
      - '*'

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Login to Github Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

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

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

      - name: Downcase repo
        run: |
          echo "REPO=${GITHUB_REPOSITORY@L}" >> "${GITHUB_ENV}"

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/${{ env.REPO }}:${{ github.ref_name }}
            ghcr.io/${{ env.REPO }}:latest
          provenance: false # Disable provenance to avoid unknown/unknown
          sbom: false       # Disable sbom to avoid unknown/unknown