sandbox/.github/workflows/build-container.yml

name: "Build container images"
on:
  push:
    paths:
      - 'container/**'
  pull_request:
    paths:
      - 'container/**'
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}/lighthouse-ci-server

jobs:
  container-build:
    name: "Build and publish containers to GitHub Container Registry"
    permissions:
      contents: read
      packages: write
      attestations: write
    runs-on: ubuntu-latest
    steps:
      - name: "Log in to the Container registry"
        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: "Extract metadata (tags, labels) for Docker"
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      - name: "Build and push Docker image"
        id: push
        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
        with:
          context: ${{ github.workspace }}/container/lighthouse-ci-server
          file: ${{ github.workspace }}/container/lighthouse-ci-server/Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
      - name: "Generate artifact attestation"
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true