build.yml

name: publish docker image

on:
  release:
    types: [published]

jobs:
  publish_docker_image:
    name: publish docker image
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
      attestations: write
      id-token: write
    steps:
      - uses: actions/checkout@v4
      - uses: docker/login-action@v3.3.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5.5.1
        with:
          images: |
            ghcr.io/${{ github.repository }}

      - id: push
        uses: docker/build-push-action@v6.5.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true