test.yml

name: Code testing
on:
  push:
    branches:
    - master
    tags:
    - "v*"
  pull_request:
    types:
      - opened
      - reopened
      - synchronize

jobs:
  configure:
    name: Preliminary configuration
    runs-on: ubuntu-latest
    outputs:
      ref: ${{ steps.configure.outputs.ref }}
      repo-name: ${{ steps.configure.outputs.repo-name }}
      version: ${{ steps.version.outputs.version }}
    steps:
      - name: Get version
        id: version
        run: echo "version=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_OUTPUT
        if: |
          github.event_name == 'push' &&
          github.event.repository.full_name == github.repository &&
          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 pull request)
          if [[ "${{ github.event_name }}" == "pull_request_target" ]]; then
            echo "ref=${{ github.event.pull_request.head.sha }}" >> $GITHUB_OUTPUT
            echo "repo-name=${{ github.event.pull_request.head.repo.full_name }}" >> $GITHUB_OUTPUT
          elif [[ "${{ steps.version.outputs.version }}" != "" ]]; then
            echo "ref=${{ steps.version.outputs.version }}" >> $GITHUB_OUTPUT
            echo "repo-name=${{ github.repository }}" >> $GITHUB_OUTPUT
          else
            echo "ref=${{ github.sha }}" >> $GITHUB_OUTPUT
            echo "repo-name=${{ github.repository }}" >> $GITHUB_OUTPUT
          fi

  operators:
    name: Operators
    runs-on: ubuntu-latest
    needs: configure
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: "${{ needs.configure.outputs.ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Check if /operators files changed
        uses: dorny/paths-filter@v2
        id: pathFilter
        with:
          filters: |
            operators:
              - 'operators/**'

      - name: Setup Go
        uses: actions/setup-go@v3
        with:
          go-version: 1.19

      - uses: actions/setup-python@v4
        with:
          python-version: "3.10"

      - name: Install Kubebuilder
        run: |
          version=2.3.1 # latest stable version
          kubernetes_version=1.25.0
          curl -L -O "https://github.com/kubernetes-sigs/kubebuilder/releases/download/v${version}/kubebuilder_${version}_linux_$(go env GOARCH).tar.gz"
          tar -zxvf kubebuilder_${version}_linux_$(go env GOARCH).tar.gz
          mv kubebuilder_${version}_linux_$(go env GOARCH) kubebuilder
          curl --fail -sSLo envtest-bins.tar.gz "https://go.kubebuilder.io/test-tools/${kubernetes_version}/$(go env GOOS)/$(go env GOARCH)"
          tar -zxvf envtest-bins.tar.gz kubebuilder/bin/kube-apiserver --overwrite -C kubebuilder/bin
          sudo mv kubebuilder /usr/local/

      - name: Perform the tests
        working-directory: operators/
        run: |
          make test
          make test-python

      - name: Send coverage
        if: steps.pathFilter.outputs.operators == 'true'
        uses: shogo82148/actions-goveralls@v1
        with:
          path-to-profile: coverage.out
          working-directory: operators/

  operators-generated:
    name: Operators (Generated manifests)
    runs-on: ubuntu-latest
    needs: configure
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: "${{ needs.configure.outputs.ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Setup Go
        uses: actions/setup-go@v3
        with:
          go-version: 1.19

      - name: Run the automatic generation
        working-directory: operators/
        run: |
          make generate
          make manifests

      - name: Gather the differences
        id: git-diff
        run: |
          # Ensure new files are also considered in the diff
          git add --intent-to-add .

          output=$(git diff | head -n 100)
          exit_code=$([ "${output}" ] && echo 1 || echo 0)

          # Required to correctly manage multi-line outputs
          output="${output//'%'/'%25'}"
          output="${output//$'\n'/'%0A'}"
          output="${output//$'\r'/'%0D'}"

          echo "diff=${output}" >> $GITHUB_OUTPUT

          # Trigger a failure in case the diff is not empty
          exit ${exit_code}
      - name: Log the error if the diff is not empty (in case the comment cannot be generated)
        run: |
          echo "The generated artifacts appear to be out-of-date."
          echo
          echo "Here it is an excerpt of the diff:"
          echo "${{ steps.git-diff.outputs.diff }}"
        if: failure()
      - name: Issue a comment in case the diff is not empty
        uses: peter-evans/create-or-update-comment@v2
        with:
          token: ${{ secrets.CI_TOKEN }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            The generated files in the `operators/` folder appear to be out-of-date.

            Please, ensure you are using the correct version of `controller-gen` and re-run:
            ```
            make generate
            make manifests
            ```

            <details>
              <summary>Here it is an excerpt of the diff:</summary>

              ```diff
              ${{ steps.git-diff.outputs.diff }}
              ```
            </details>
          reactions: confused
        if: |
          github.event_name != 'push' && failure() &&
          github.event.pull_request.head.repo.full_name == github.repository

  kubernetes-manifests:
    name: Kubernetes manifests
    runs-on: ubuntu-latest
    needs: configure
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: "${{ needs.configure.outputs.ref }}"
          repository: "${{ needs.configure.outputs.repo-name }}"
          persist-credentials: false

      - name: Update the Helm chart dependencies
        uses: WyriHaximus/github-action-helm3@v2
        with:
          exec:
            helm dependency update ./deploy/crownlabs

      - name: Verify that the helm chart is well-formed
        uses: WyriHaximus/github-action-helm3@v2
        with:
          exec:
            helm lint ./deploy/crownlabs --with-subcharts

      - name: Render the yaml manifests
        id: helm-template
        uses: WyriHaximus/github-action-helm3@v2
        with:
          exec:
            helm template crownlabs ./deploy/crownlabs
            --namespace crownlabs-production
            --set global.version=v0.0.1

      - name: Save the rendered manifests
        run: |
          echo '${{ steps.helm-template.outputs.helm_output }}' > ./deploy/crownlabs/rendered.yaml

      - name: KubeScore Check
        run: |
          docker run -v ${{ github.workspace }}:/CrownLabs zegl/kube-score:v1.11.0 score \
              --ignore-test=pod-networkpolicy,container-security-context,container-image-pull-policy \
            /CrownLabs/deploy/crownlabs/rendered.yaml