publish-container.yml

# SPDX-License-Identifier: MPL-2.0
name: Publish Container

on:
  release:
    types: [published]
  workflow_dispatch:

permissions:
  contents: read
  packages: write

jobs:
  publish:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    permissions:
      contents: read
      packages: write
      id-token: write       # mint the OIDC token the attestation is signed with
      attestations: write   # write the build-provenance attestation (the "claim")
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v4
      
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      
      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v5
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha
      
      - name: Build and push
        id: push
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v6
        with:
          context: .
          file: ./Containerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Attest container provenance
        uses: actions/attest-build-provenance@0f67c3f4856b2e3261c31976d6725780e5e4c373 # v4.1.1
        with:
          subject-name: ghcr.io/${{ github.repository }}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true