CI.yml

name: CI
on:
  # allow manual dispatch
  workflow_dispatch:

  # always execute docker build when something is pushed to master or release-* branches
  push:
    branches:
      - "master"
  # in addition, execute for pull requests to those branches
  pull_request:
    branches:
      - "master"
      - "release-[0-9]*"

defaults:
  run:
    shell: bash
env:
  VERSION_FILE: "x-release-please-version.json"
jobs:
  ############################################################################
  # Prepare CI Run (determine version, git sha, datetime, ...)               #
  ############################################################################
  prepare_ci_run:
    name: Prepare CI Run
    uses: keptn/gh-automation/.github/workflows/prepare-ci.yml@v1.6.0

  ############################################################################
  # Unit tests                                                               #
  ############################################################################
  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-20.04
    steps:
      - name: Check out repository
        uses: actions/checkout@v3.5.3
      - name: Unit tests
        uses: ./.github/actions/unit-tests

  ############################################################################
  # Use version of release please if gh ref is a release-please pr branch    #
  ############################################################################
  verify-next-version:
    needs: prepare_ci_run
    name: Verify next version
    runs-on: ubuntu-20.04
    env:
      VERSION: ${{ needs.prepare_ci_run.outputs.VERSION }}
    outputs:
      NEXT-VERSION: ${{ steps.verify-next-version.outputs.NEXT-VERSION }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3.5.3
      - name: Overwrite version variable from prepare_ci_run in case of a release-please-branch
        id: verify-next-version
        run: |
          echo "Note: GITHUB_REF_HEADS=${GITHUB_HEAD_REF}"
          if [[ "${GITHUB_HEAD_REF}" == "release-please-"* ]]; then
            # Release PR: extract version from x-release-please-version.json
            RELEASEPLEASE_VERSION=$(jq -r '."x-release-please-version"' ${{ env.VERSION_FILE }})
            echo "NEXT-VERSION=${RELEASEPLEASE_VERSION}-rc" >> $GITHUB_OUTPUT
          else
            echo "NEXT-VERSION=${VERSION}" >> $GITHUB_OUTPUT
          fi 

  ############################################################################
  # Build Helm Charts                                                        #
  ############################################################################
  helm_charts_build:
    needs:
      - prepare_ci_run
      - verify-next-version
    name: Build Helm Charts
    runs-on: ubuntu-20.04
    env:
      BRANCH: ${{ needs.prepare_ci_run.outputs.BRANCH }}
      VERSION: ${{ needs.verify-next-version.outputs.NEXT-VERSION }}
      DATETIME: ${{ needs.prepare_ci_run.outputs.DATETIME }}
      GIT_SHA: ${{ needs.prepare_ci_run.outputs.GIT_SHA }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3.5.3

      - name: Load CI Environment from .ci_env
        id: load_ci_env
        uses: c-py/action-dotenv-to-setenv@v4
        with:
          env-file: .ci_env

      - name: Build Helm Chart
        id: build_helm_chart
        run: |
          if [[ "$BRANCH" == "master" ]]; then
            # use VERSION.DATETIME for the image tag (e.g., nightly build)
            ./gh-actions-scripts/build_helm_chart.sh "${VERSION}" "${VERSION}.${DATETIME}" "${IMAGE}"
          else
            # just use VERSION for the image tag
            ./gh-actions-scripts/build_helm_chart.sh "${VERSION}" "${VERSION}" "${IMAGE}"
          fi

      - name: Upload Helm Chart as an artifact
        id: upload_helm_chart
        uses: actions/upload-artifact@v3
        with:
          name: installer
          path: installer/*.tgz

  ############################################################################
  # Build Docker Image                                                      #
  ############################################################################
  docker_build:
    needs:
      - prepare_ci_run
      - verify-next-version
      - unit-tests
    name: Docker Build
    runs-on: ubuntu-20.04
    env:
      BRANCH: ${{ needs.prepare_ci_run.outputs.BRANCH }}
      VERSION: ${{ needs.verify-next-version.outputs.NEXT-VERSION }}
      DATETIME: ${{ needs.prepare_ci_run.outputs.DATETIME }}
      GIT_SHA: ${{ needs.prepare_ci_run.outputs.GIT_SHA }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3.5.3

      - name: Load CI Environment from .ci_env
        id: load_ci_env
        uses: c-py/action-dotenv-to-setenv@v4
        with:
          env-file: .ci_env

      - name: Docker Build
        id: docker_build
        uses: keptn/gh-automation/.github/actions/docker-build@v1.6.0
        with:
          TAGS: |
            ${{ env.DOCKER_ORGANIZATION }}/${{ env.IMAGE }}:${{ env.VERSION }}
            ${{ env.DOCKER_ORGANIZATION }}/${{ env.IMAGE }}:${{ env.VERSION }}.${{ env.DATETIME }}
          BUILD_ARGS: |
            version=${{ env.VERSION }}
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
          PUSH: ${{(github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event.pull_request.head.repo.full_name == github.repository)}}

      - id: report_docker_build_to_pr
        name: Report Docker Build to PR
        if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          recreate: true
          header: test
          message: |
            The following Docker Images have been built:
            ${{ fromJSON(steps.docker_build.outputs.BUILD_METADATA)['image.name'] }}

  store-output-in-build-config:
    name: "Store output of last step in build-config.env"
    needs:
      - prepare_ci_run
      - verify-next-version
    runs-on: ubuntu-20.04
    steps:
      - name: Create build config file
        env:
          BRANCH: ${{ needs.prepare_ci_run.outputs.BRANCH }}
          BRANCH_SLUG: ${{ needs.prepare_ci_run.outputs.BRANCH_SLUG }}
          VERSION: ${{ needs.verify-next-version.outputs.NEXT-VERSION }}
          DATETIME: ${{ needs.prepare_ci_run.outputs.DATETIME }}
          GIT_SHA: ${{ needs.prepare_ci_run.outputs.GIT_SHA }}
        run: |
          echo "BRANCH=${BRANCH}" >> build-config.env
          echo "BRANCH_SLUG=${BRANCH_SLUG}" >> build-config.env
          echo "VERSION=${VERSION}" >> build-config.env
          echo "DATETIME=${DATETIME}" >> build-config.env
          echo "GIT_SHA=${GIT_SHA}" >> build-config.env

      - name: Upload build config as artifact
        id: upload_build_config
        uses: actions/upload-artifact@v3
        with:
          name: build-config
          path: build-config.env