name: Continuous Delivery

on:
  push:
    branches:
      - main
    paths-ignore:
      - Debian/ClusterImageCatalog*.yaml
  workflow_dispatch:

permissions: read-all

env:
  IMAGE_STAGING: "ghcr.io/${{ github.repository_owner }}/postgresql-testing"
  IMAGE_RELEASE: "ghcr.io/${{ github.repository_owner }}/postgresql"
  DEFAULT_DISTRO: "bullseye"

jobs:
  generate-jobs:
    name: Generate Jobs
    runs-on: ubuntu-24.04
    outputs:
      strategy: ${{ steps.generate-jobs.outputs.strategy }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
      - name: Generate Jobs
        id: generate-jobs
        shell: bash
        run: |
          bash .github/generate-strategy.sh

  build:
    needs: generate-jobs
    strategy: ${{ fromJson(needs.generate-jobs.outputs.strategy) }}
    name: ${{ matrix.name }}
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      packages: write
      security-events: write
    steps:
    - name: Checkout Code
      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4

    - name: Set up QEMU
      uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3
      with:
        platforms: ${{ matrix.platforms }}

    - name: Docker meta
      env:
        TAGS: ${{ toJson(matrix.tags) }}
      run: |
        RESULT=""
        for tag in $(jq -r '.[]' <<< "${TAGS}")
        do
          RESULT="${RESULT},${IMAGE_STAGING}:${tag}"
          # If we are running the pipeline in the main branch images are pushed in both -testing and PROD repo
          if [ "${GITHUB_REF#refs/heads/}" == main ]
          then
            RESULT="${RESULT},${IMAGE_RELEASE}:${tag}"
          fi
        done
        echo "TAGS=${RESULT%,}" >> $GITHUB_ENV

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3

    - name: Log in to the GitHub Container registry
      uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    # When publishing new images from main, we should not overwrite an existing
    # tag in order to guarantee the tag's SHA digest consistency.
    - name: Verify primary tag is not overwritten
      run: |
        echo "MISSING_TAG=false" >> $GITHUB_ENV
        # if we are not on the main branch, always push
        if [ "${GITHUB_REF#refs/heads/}" != main ]; then
            echo "MISSING_TAG=true" >> $GITHUB_ENV
            exit 0
        fi
        IMAGE="${IMAGE_RELEASE}:${{ matrix.fullTag }}"
        # If the primary tag already exists, skip the building phase
        if skopeo inspect docker://${IMAGE} >/dev/null 2>/dev/null; then
          echo "Image ${IMAGE} already exists"
          # We still need to grab the digest to build the imageCatalog
          echo "OLD_DIGEST=$(skopeo inspect docker://${IMAGE} --format '{{ .Digest }}')" >> $GITHUB_ENV
        else
          echo "MISSING_TAG=true" >> $GITHUB_ENV
        fi

    - name: Build and load
      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
      if: ${{ env.MISSING_TAG == 'true' }}
      with:
        context: ${{ matrix.dir }}
        file: ${{ matrix.file }}
        push: false
        load: true
        tags: ${{ env.TAGS }}

    - name: Dockle scan
      uses: erzz/dockle-action@69369bc745ee29813f730231a821bcd4f71cd290 # v1
      if: ${{ env.MISSING_TAG == 'true' }}
      with:
        image: "${{ env.IMAGE_STAGING }}:${{ matrix.tags[0] }}"
        exit-code: '1'
        failure-threshold: WARN
        accept-keywords: key
        accept-filenames: usr/share/cmake/Templates/Windows/Windows_TemporaryKey.pfx,etc/trusted-key.key,usr/share/doc/perl-IO-Socket-SSL/certs/server_enc.p12,usr/share/doc/perl-IO-Socket-SSL/certs/server.p12,usr/local/lib/python3.9/dist-packages/azure/core/settings.py,usr/local/lib/python3.8/site-packages/azure/core/settings.py,usr/share/postgresql-common/pgdg/apt.postgresql.org.asc,usr/local/lib/python3.7/dist-packages/azure/core/settings.py,etc/ssl/private/ssl-cert-snakeoil.key,usr/lib/python3.9/site-packages/azure/core/settings.py,usr/local/lib/python3.11/dist-packages/azure/core/settings.py

    - name: Run Snyk to check Docker image for vulnerabilities
      uses: snyk/actions/docker@master
      if: ${{ env.MISSING_TAG == 'true' }}
      continue-on-error: true
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      with:
        image: "${{ env.IMAGE_STAGING }}:${{ matrix.tags[0] }}"
        args: --severity-threshold=high --file=${{ matrix.file }}

    - name: Upload result to GitHub Code Scanning
      uses: github/codeql-action/upload-sarif@ff0a06e83cb2de871e5a09832bc6a81e7276941f # v3
      if: ${{ env.MISSING_TAG == 'true' }}
      continue-on-error: true
      with:
        sarif_file: snyk.sarif

    - name: Build and push
      id: build
      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
      if: ${{ env.MISSING_TAG == 'true' }}
      with:
        context: ${{ matrix.dir }}
        file: ${{ matrix.file }}
        platforms: ${{ matrix.platforms }}
        push: true
        tags: ${{ env.TAGS }}

    - name: Create artifact
      run: |
        # Set a default image
        BASE_IMAGE=${IMAGE_STAGING}
        if [ "${GITHUB_REF#refs/heads/}" == main ]; then
            BASE_IMAGE=${IMAGE_RELEASE}
        fi

        DIGEST="${{ steps.build.outputs.digest }}"
        if [[ "${{ env.MISSING_TAG }}" == "false" ]]; then
            DIGEST="${{ env.OLD_DIGEST }}"
        fi

        IMAGE=${BASE_IMAGE}:${{ matrix.fullTag }}@${DIGEST} \
        MAJOR=${{ matrix.version }} \
        yq --null-input '{
          "apiVersion": "postgresql.cnpg.io/v1",
          "kind": "ClusterImageCatalog",
          "metadata": {"name":"postgresql"},
          "spec": {
            "images": [
              {
                "major": env(MAJOR),
                "image": env(IMAGE)
              }
            ]
          }
        }' > ${{ matrix.version }}-${{ matrix.distro }}.yaml

    - name: Upload artifact
      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
      with:
        name: ${{ matrix.version }}-${{ matrix.distro }}-clusterimagecatalog
        path: ${{ matrix.version }}-${{ matrix.distro }}.yaml

  image-catalog:
    name: Generate ClusterImageCatalog
    runs-on: ubuntu-24.04
    needs: build
    permissions:
      contents: write
    steps:
      - name: Checkout Code
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
        with:
          token: ${{ secrets.REPO_GHA_PAT }}

      - name: Download artifacts
        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
        with:
          pattern: '*-clusterimagecatalog'
          path: clusterimagecatalog
          merge-multiple: true

      - name: Update ClusterImageCatalog
        run: |
          yq eval-all '. as $item ireduce ({}; . *+ $item )' clusterimagecatalog/*-bullseye.yaml > Debian/ClusterImageCatalog-bullseye.yaml
          yq eval-all '. as $item ireduce ({}; . *+ $item )' clusterimagecatalog/*-bookworm.yaml > Debian/ClusterImageCatalog-bookworm.yaml
          ln -f -s ClusterImageCatalog-${DEFAULT_DISTRO}.yaml Debian/ClusterImageCatalog.yaml
          cat Debian/ClusterImageCatalog.yaml Debian/ClusterImageCatalog-bullseye.yaml Debian/ClusterImageCatalog-bookworm.yaml

      - name: Temporarily disable "include administrators" branch protection
        if: ${{ always() && github.ref == 'refs/heads/main' }}
        id: disable_include_admins
        uses: benjefferies/branch-protection-bot@af281f37de86139d1c7a27b91176b5dc1c2c827c # v1.1.2
        with:
          access_token: ${{ secrets.REPO_GHA_PAT }}
          branch: main
          enforce_admins: false

      - name: Push ClusterImageCatalog updates
        uses: EndBug/add-and-commit@a94899bca583c204427a224a7af87c02f9b325d5 # v9
        if: ${{ github.ref == 'refs/heads/main' }}
        with:
          author_name: CloudNativePG Automated Updates
          author_email: noreply@cnpg.com
          message: 'Automatic ClusterImageCatalog update'
          add: 'Debian/ClusterImageCatalog*.yaml'

      - name: Enable "include administrators" branch protection
        uses: benjefferies/branch-protection-bot@af281f37de86139d1c7a27b91176b5dc1c2c827c # v1.1.2
        if: ${{ always() && github.ref == 'refs/heads/main' }}
        with:
          access_token: ${{ secrets.REPO_GHA_PAT }}
          branch: main
          enforce_admins: ${{ steps.disable_include_admins.outputs.initial_status }}