main.yml

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

name: 🌳 CI/CD
on:
  push:
    branches: ["main"]
    tags: ["v*"]
  pull_request:

env:
  REGISTRY: ghcr.io

jobs:
  changes:
    name: 🔄 Detect changes
    runs-on: ubuntu-latest
    permissions:
      pull-requests: read
    outputs:
      images: ${{ steps.filter.outputs.changes }}
    steps:
      # https://github.com/actions/checkout/tree/11bd71901bbe5b1630ceea73d27597364c9af683
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
      # https://github.com/dorny/paths-filter/tree/de90cc6fb38fc0963ad72b210f1f284cd68cea36
      - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36
        id: filter
        with:
          filters: .github/file-filters.yml

  tests:
    name: 🧪 Tests
    needs: changes
    uses: ./.github/workflows/tests.yml
    with:
      images: ${{ needs.changes.outputs.images }}
    secrets: inherit

  build:
    name: 🐳 Docker
    runs-on: ubuntu-latest
    needs: [changes, tests]
    strategy:
      fail-fast: false
      # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/running-variations-of-jobs-in-a-workflow#example-adding-configurations
      matrix:
        image: ${{ fromJSON(needs.changes.outputs.images) }}
        include:
          - image: urbantree
            context: .
          - image: api
            context: ./api
    permissions:
      contents: read
      packages: write
      attestations: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write

    steps:
      # https://github.com/actions/checkout/tree/11bd71901bbe5b1630ceea73d27597364c9af683
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683

      # https://github.com/sigstore/cosign-installer/tree/dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da
      - uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da
        if: github.event_name != 'pull_request'
        with:
          cosign-release: "v2.2.4"

      # https://github.com/docker/setup-buildx-action/tree/c47758b77c9736f4b2ef4073d4d51994fabfe349
      - uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349

      # https://github.com/docker/login-action/tree/7ca345011ac4304463197fac0e56eab1bc7e6af0
      - name: 🪪 Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@7ca345011ac4304463197fac0e56eab1bc7e6af0
        if: github.event_name != 'pull_request'
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # https://github.com/docker/metadata-action/tree/b53be03109c4ef6f6cc7aa545b84b17a7fe51c1e
      - uses: docker/metadata-action@b53be03109c4ef6f6cc7aa545b84b17a7fe51c1e
        id: meta
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ matrix.image }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,manifest-descriptor,index,index-descriptor

      # https://github.com/actions/cache/tree/6849a6489940f00c2f30c0fb92c6274307ccb58a
      - name: 📦 Cache Docker layers
        uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a
        with:
          path: |
            composer-cache
            python-cache
          key: ${{ runner.os }}-docker-${{ hashFiles('**/Dockerfile') }}

      # https://github.com/reproducible-containers/buildkit-cache-dance/tree/5b6db76d1da5c8b307d5d2e0706d266521b710de
      - name: 📦 Load cache
        uses: reproducible-containers/buildkit-cache-dance@5b6db76d1da5c8b307d5d2e0706d266521b710de
        with:
          cache-map: |
            {
              "composer-cache": "/tmp/cache",
              "python-cache": "/root/.cache/pip"
            }
          skip-extraction: ${{ steps.cache.outputs.cache-hit }}

      # https://github.com/docker/build-push-action/tree/48aba3b46d1b1fec4febb7c5d0c644b249a11355
      - name: 🏗️ Build final stage and push to ${{ env.REGISTRY }}
        id: build-and-push
        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355
        with:
          context: ${{ matrix.context }}
          push: ${{ github.event_name != 'pull_request' }}
          target: final
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      # Sign the resulting Docker image digest except on PRs.
      # This will only write to the public Rekor transparency log when the Docker
      # repository is public to avoid leaking data.  If you would like to publish
      # transparency data even for private images, pass --force to cosign below.
      # https://github.com/sigstore/cosign/
      - name: 🖋️ Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
          TAGS: ${{ steps.meta.outputs.tags }}
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        # This step uses the identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}

      # https://github.com/actions/attest-build-provenance/tree/ef244123eb79f2f7a7e75d99086184180e6d0018
      - name: 📝 Attest the build provenance
        uses: actions/attest-build-provenance@ef244123eb79f2f7a7e75d99086184180e6d0018
        if: ${{ github.event_name != 'pull_request' }}
        with:
          subject-name: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ matrix.image }}
          subject-digest: ${{ steps.build-and-push.outputs.digest }}
          push-to-registry: true

  deploy:
    name: 🚀 Deploy to production
    runs-on: ubuntu-latest
    needs: build
    if: ${{ github.event_name != 'pull_request' }}

    steps:
      # https://github.com/appleboy/ssh-action/tree/7eaf76671a0d7eec5d98ee897acda4f968735a17
      - name: 🚚 SSH into production server
        uses: appleboy/ssh-action@7eaf76671a0d7eec5d98ee897acda4f968735a17
        with:
          host: ${{ secrets.SSH_MANAGER_HOST }}
          username: ${{ secrets.SSH_MANAGER_USER }}
          password: ${{ secrets.SSH_MANAGER_PASS }}
          port: ${{ secrets.SSH_MANAGER_PORT }}
          script: |
            docker stack deploy --with-registry-auth -c compose.prod.yml urbantree

      - name: 🕵️ Check the deployment
        run: |
          # curl -sSf http://${{ env.WEB_URL }}/
          curl -sSf http://${{ env.API_URL }}/