helm-charts/.github/workflows/charts-test.yaml

name: "Charts: Test"

on:
  workflow_call:
    inputs:
      checkoutCommit:
        required: true
        type: string
      chartsToTest:
        description: >
          A JSON encoded array of charts to lint
        type: string
        required: true
      overrideDeps:
        description: >
          A JSON encoded array of dependencies to override before testing
        type: string
        required: false
        default: "[]"

env:
  HELM_VERSION: 3.11.2

jobs:
  install-chart:
    name: Install chart
    runs-on: ubuntu-22.04
    if: ${{ inputs.chartsToTest != '[]' && inputs.chartsToTest != '' }}
    strategy:
      matrix:
        chart: ${{ fromJSON(inputs.chartsToTest) }}
        k8s_version:
          [
            "v1.23.17",
            "v1.24.17",
            "v1.25.16",
            "v1.26.13",
            "v1.27.10",
            "v1.28.6",
            "v1.29.1",
          ]
      fail-fast: false
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: ${{ inputs.checkoutCommit }}

      - name: Install Kubernetes tools
        uses: yokawasa/action-setup-kube-tools@v0.11.1
        with:
          setup-tools: |
            helmv3
            kubectl
          helm: "${{ env.HELM_VERSION }}"
          kubectl: "${{ matrix.k8s_version }}"

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.6.1

      - name: Create k3d cluster
        uses: nolar/setup-k3d-k3s@v1
        with:
          version: ${{ matrix.k8s_version }}

      - name: Remove node taints
        run: |
          kubectl taint --all=true nodes node.cloudprovider.kubernetes.io/uninitialized- || true

      - name: Override chart dependencies
        uses: ./.github/actions/override-chart-deps
        if: ${{ inputs.overrideDeps != '[]' }}
        with:
          chart: ${{ matrix.chart }}
          overrides: ${{ inputs.overrideDeps }}

      - name: Run chart-testing (install)
        working-directory: "charts/${{ matrix.chart }}"
        # TODO: Awaiting https://github.com/actions/checkout/issues/1607
        run: |
          ct install --config "$GITHUB_WORKSPACE/.ci/ct/ct.yaml" --charts .

  install_success:
    needs:
      - install-chart
    if: |
      always()
    name: Install successful
    runs-on: ubuntu-latest
    steps:
      - name: Check matrix status
        if: >-
          ${{
              (
                inputs.chartsToTest != '' && inputs.chartsToTest != '[]'
              ) &&
              (
                contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
              )
          }}
        run: exit 1

  unittest-chart:
    name: Unit-test chart
    runs-on: ubuntu-22.04
    if: ${{ inputs.chartsToTest != '[]' && inputs.chartsToTest != '' }}
    strategy:
      matrix:
        chart: ${{ fromJSON(inputs.chartsToTest) }}
      fail-fast: false
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: ${{ inputs.checkoutCommit }}

      - name: Install Kubernetes tools
        uses: yokawasa/action-setup-kube-tools@v0.11.1
        with:
          setup-tools: |
            helmv3
          helm: "${{ env.HELM_VERSION }}"

      - name: Override chart dependencies
        uses: ./.github/actions/override-chart-deps
        if: ${{ inputs.overrideDeps != '[]' }}
        with:
          chart: ${{ matrix.chart }}
          overrides: ${{ inputs.overrideDeps }}

      - name: Run tests
        working-directory: "charts/${{ matrix.chart }}"
        run: |
          helm plugin install https://github.com/helm-unittest/helm-unittest.git
          helm dep update
          helm unittest -f "tests/**/*_test.yaml" .

  unittest_success:
    needs:
      - unittest-chart
    if: |
      always()
    name: Unittest successful
    runs-on: ubuntu-latest
    steps:
      - name: Check matrix status
        if: >-
          ${{
              (
                inputs.chartsToTest != '' && inputs.chartsToTest != '[]'
              ) &&
              (
                contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
              )
          }}
        run: exit 1