integration.yml

name: Integration Pipeline
on:
  push:
    tags:
      - 'v*'
    branches:
      - master
  repository_dispatch:
    types:
      - test-command
      - build-command

jobs:
  configure:
    name: Preliminary configuration
    runs-on: ubuntu-latest
    outputs:
      commit-ref: ${{ steps.configure.outputs.commit-ref }}
      repo-suffix: ${{ steps.configure.outputs.repo-suffix }}
      master: ${{ steps.configure.outputs.master }}
      repo-name: ${{ steps.configure.outputs.repo-name }}
      architectures: ${{ steps.configure.outputs.architectures }}
      pr-number: ${{ steps.configure.outputs.pr-number }}
    steps:
    - name: Get the version
      id: get_version
      run: echo "VERSION=$(echo $GITHUB_REF | cut -d / -f 3)" >> $GITHUB_OUTPUT
      if: startsWith(github.ref, 'refs/tags/v')
    - name: Configure
      id: configure
      run: |
        # The ref of the commit to checkout (do not use the merge commit if repository dispatch)
        if [ "${{ github.event_name }}" == "repository_dispatch" ]; then
          echo "master=false" >> $GITHUB_OUTPUT
          echo "architectures=linux/amd64" >> $GITHUB_OUTPUT
          echo "commit-ref=${{ github.event.client_payload.pull_request.head.sha }}" >> $GITHUB_OUTPUT
          echo "pr-number=${{ github.event.client_payload.github.payload.issue.number }}" >> $GITHUB_OUTPUT
        elif [ "${{ steps.get_version.outputs.VERSION }}" != "" ]; then
          echo "master=false" >> $GITHUB_OUTPUT
          echo "architectures=linux/amd64,linux/arm64" >> $GITHUB_OUTPUT
          echo "commit-ref=${{ steps.get_version.outputs.VERSION }}" >> $GITHUB_OUTPUT
        else
          echo "master=true" >> $GITHUB_OUTPUT
          echo "architectures=linux/amd64,linux/arm64" >> $GITHUB_OUTPUT
          echo "commit-ref=${{ github.sha }}" >> $GITHUB_OUTPUT
        fi

        # The suffix to append to the repository name if not triggered by a push for a release
        ([[ "${{ steps.get_version.outputs.VERSION }}" == "" ]] && \
          echo "repo-suffix=-ci" ||
          echo "repo-suffix=") >> $GITHUB_OUTPUT

        if [ "${{ github.event_name }}" != "repository_dispatch" ]; then
           echo "repo-name=${{ github.repository }}" >> $GITHUB_OUTPUT
        else
           echo "repo-name=${{ github.event.client_payload.github.payload.repository.full_name }}" >> $GITHUB_OUTPUT
        fi

      # Since we are using a repository-dispatch event, we have to explicitly set a run check. We initialize it to a "pending" state.
    - uses: octokit/request-action@v2.x
      name: "Initialize run check to 'pending (For PR-only)"
      with:
        route: POST /repos/${{ github.repository }}/statuses/${{ steps.configure.outputs.commit-ref }}
        state: "pending"
        description: "Component build status"
        context:  "Components building"
        target_url: "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
      env:
        GITHUB_TOKEN: ${{ secrets.CI_TOKEN }}
      if: ${{ github.event_name == 'repository_dispatch' }}

  build:
    runs-on: ubuntu-latest
    needs: configure
    strategy:
      fail-fast: false
      matrix:
        component:
        - auth-service
        - cert-creator
        - crd-replicator
        - liqo-controller-manager
        - discovery
        - liqonet
        - uninstaller
        - virtual-kubelet
        - metric-agent
        - telemetry
    steps:

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2.2.0
        with:
          platforms: all

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Check out code
        uses: actions/checkout@v3
        with:
          ref: "${{ needs.configure.outputs.commit-ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Cache Docker layers
        uses: actions/cache@v3
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-${{ matrix.component }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.component }}-buildx-

      - name: Login to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Configure the build-push-action dockerfile path
        id: dockerfile
        run: |
          ([[ -d "build/${{ matrix.component }}" ]] && \
            echo "path=build/${{ matrix.component }}/Dockerfile" || \
            echo "path=build/common/Dockerfile") >> $GITHUB_OUTPUT

      - name: Build (and Publish) ${{ matrix.component }} image
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: ${{ needs.configure.outputs.architectures }}
          tags: |
            ghcr.io/${{ github.repository_owner }}/${{ matrix.component }}${{ needs.configure.outputs.repo-suffix }}:latest
            ghcr.io/${{ github.repository_owner }}/${{ matrix.component }}${{ needs.configure.outputs.repo-suffix }}:${{ needs.configure.outputs.commit-ref }}
          push: true
          file: ${{ steps.dockerfile.outputs.path }}
          build-args: |
            COMPONENT=${{ matrix.component }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new
        # This ugly bit is necessary if you don't want your cache to grow forever
        # till it hits GitHub's limit of 5GB.
        # Temp fix
        # https://github.com/docker/build-push-action/issues/252
        # https://github.com/moby/buildkit/issues/1896
      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache


  post-build:
     runs-on: ubuntu-latest
     needs: [build, configure, liqoctl]
     steps:

       # Since we are using a repository-dispatch event, we have to explicitly set a run check. We update it to the actual status.
       - uses: octokit/request-action@v2.x
         name: "Set the PR check status (For PR-only)"
         with:
           route: POST /repos/${{ github.repository }}/statuses/${{ needs.configure.outputs.commit-ref }}
           state: "${{ needs.build.result }}"
           description: "Component build status"
           context: "Components building"
           target_url: "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
         env:
           GITHUB_TOKEN: ${{ secrets.CI_TOKEN }}
         if: ${{ !cancelled() && github.event_name == 'repository_dispatch' }}

  e2e-test-trigger:
    runs-on: ubuntu-latest
    needs: [build, configure, liqoctl]
    if: github.event.client_payload.slash_command.command == 'test'
    steps:

       - name: Notify Event to E2E Tests
         uses: peter-evans/repository-dispatch@v2
         with:
           token: ${{ secrets.CI_TOKEN }}
           repository: liqotech/liqops
           event-type: "dev-event"
           client-payload: |
             {
               "master": "${{ needs.configure.outputs.master }}",
               "commit": "${{ needs.configure.outputs.commit-ref }}",
               "repo-name": "${{ needs.configure.outputs.repo-name }}",
               "base-repo": "${{ github.repository }}",
               "run-id": "${{ github.run_id }}",
               "pr-number" : "${{ needs.configure.outputs.pr-number }}"
             }

  liqoctl:
    runs-on: ubuntu-latest
    needs: [ configure ]
    strategy:
      matrix:
        goos: [ linux, windows, darwin ]
        goarch: [ arm64, amd64 ]
        exclude:
          - goarch: arm64
            goos: windows

    steps:

      - uses: actions/checkout@v3
        with:
          ref: "${{ needs.configure.outputs.commit-ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Build Liqoctl
        run: |
          ./build/liqoctl/build.sh
        env:
          CGO_ENABLED: 0
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
          LIQOCTLVERSION: ${{ needs.configure.outputs.commit-ref }}

      - name: Create Archives
        run: |
          cp liqoctl-${{ matrix.goos }}-${{ matrix.goarch }} liqoctl
          tar -czvf liqoctl-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz liqoctl LICENSE

      - name: Upload Liqoctl
        uses: actions/upload-artifact@v3
        with:
         name: liqoctl-${{ matrix.goos }}-${{ matrix.goarch }}
         path: ./liqoctl-${{ matrix.goos }}-${{ matrix.goarch }}
         retention-days: 1

      - name: Upload Liqoctl Archive
        uses: actions/upload-artifact@v3
        with:
         name: liqoctl-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz
         path: ./liqoctl-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz
         retention-days: 1

  release:
    runs-on: ubuntu-latest
    needs: [build, configure, liqoctl]
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    steps:

      - name: Checkout
        uses: actions/checkout@v3
        with:
          # The changelog generation requires the entire history
          fetch-depth: 0
          ref: "${{ needs.configure.outputs.commit-ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Get the latest Liqo release
        uses: pozetroninc/github-action-get-latest-release@v0.7.0
        id: last-release
        with:
          repository: ${{ github.repository }}
          excludes: prerelease, draft

      - name: Configure Git
        run: |
          git config user.name "adamjensenbot"
          git config user.email "adamjensenbot@users.noreply.github.com"

      - name: Install Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.8.1

      - name: Parse semver string
        id: semver_parser
        uses: booxmedialtd/ws-action-parse-semver@v1
        with:
          input_string: '${{ needs.configure.outputs.commit-ref }}'
          version_extractor_regex: 'v(.*)$'

      # we cannot use the official chart-releaser-action since it does not support releases on tags
      # https://github.com/helm/chart-releaser-action/issues/60, and it is not possible to add the
      # release artifact to the main liqo release.
      - name: Download chart releaser
        run: |
          curl -sSL "https://github.com/helm/chart-releaser/releases/download/v1.4.0/chart-releaser_1.4.0_linux_amd64.tar.gz" | tar -xz

      - name: Package helm chart
        run: |
          # the output should be in the .cr-release-packages since cr index expects to find it there to create the helm index
          helm package deployments/liqo --version "${{ needs.configure.outputs.commit-ref }}" --app-version "${{ needs.configure.outputs.commit-ref }}" --destination .cr-release-packages

      - uses: actions/download-artifact@v3
        with:
         path: ./liqoctl/

      # we need to upload only helm artifacts first, to make the index updater to work
      - uses: ncipollo/release-action@v1
        with:
          artifacts: ".cr-release-packages/*"
          generateReleaseNotes: true
          token: ${{ secrets.CI_TOKEN }}
          allowUpdates: true
          tag: ${{ needs.configure.outputs.commit-ref }}
          name: ${{ needs.configure.outputs.commit-ref }}
          prerelease: ${{ steps.semver_parser.outputs.prerelease != '' }}

      - name: Update Helm index
        run: |
          repo=$(cut -d '/' -f 2 <<< "$GITHUB_REPOSITORY")
          owner=$(cut -d '/' -f 1 <<< "$GITHUB_REPOSITORY")

          # Update index and push to github pages
          ./cr index \
              --owner "$owner" \
              --git-repo "$repo" \
              --release-name-template "${{ needs.configure.outputs.commit-ref }}" \
              --token "${{ secrets.GITHUB_TOKEN }}" \
              --index-path index.yaml \
              --pages-index-path index.yaml \
              --push

      - uses: ncipollo/release-action@v1
        with:
          artifacts: "./liqoctl/**/*"
          token: ${{ secrets.CI_TOKEN }}
          allowUpdates: true
          tag: ${{ needs.configure.outputs.commit-ref }}
          name: ${{ needs.configure.outputs.commit-ref }}
          prerelease: ${{ steps.semver_parser.outputs.prerelease != '' }}

      - name: Update new version in krew-index
        uses: rajatjindal/krew-release-bot@v0.0.46