build_and_publish.yml

name: Build & Push traefik-forward-auth image

on: [ push ]

env:
  IMAGE_NAME: ghcr.io/${{ github.repository }}
  # https://github.com/thomseddon/traefik-forward-auth/releases
  # https://github.com/n8n-io/n8n/releases
  VERSION: 2.3.0

jobs:
  push_to_registry:
    name: Build & Push image to registry
    runs-on: ubuntu-latest

    permissions:
      packages: write
      contents: read
      attestations: write
      id-token: write

    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

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

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

      - name: Log in to the GitHub Container registry
        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: ${{ env.IMAGE_NAME }}
          labels: |
            org.opencontainers.image.title=traefik-forward-auth
            org.opencontainers.image.authors=Thom Seddon
            org.opencontainers.image.description=Minimal forward authentication service that provides Google/OpenID oauth based login and authentication for the traefik reverse proxy
            org.opencontainers.image.url=https://github.com/flokod/traefik-forward-auth
            org.opencontainers.image.source=https://github.com/thomseddon/traefik-forward-auth
            org.opencontainers.image.version=${{ env.VERSION }}
            org.opencontainers.image.licenses=MIT
          tags: |
            type=semver,pattern={{version}},value=${{ env.VERSION }}
            type=semver,pattern={{major}}.{{minor}},value=${{ env.VERSION }}
            type=semver,pattern={{major}},value=${{ env.VERSION }}
      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ env.VERSION }}

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