ci.yaml

name: Lint and Test Charts

on:
  pull_request:
    paths:
      - "charts/**"

jobs:
  changed:
    runs-on: ubuntu-latest
    outputs:
      charts: ${{ steps.list-changed.outputs.changed }}
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.0.1
      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          changed=$(ct list-changed)
          if [[ -n "$changed" ]]; then
            echo -n "Charts changed:"
            echo "$changed"
            echo "::set-output name=changed::$changed"
          else
            echo "PR without any chart changes - failing"
            exit 1
          fi

  lint-chart:
    runs-on: ubuntu-latest
    needs:
      - changed
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.0.1
      - name: Run chart-testing (lint)
        run: ct lint --config .github/ct.yaml

  lint-docs:
    runs-on: ubuntu-latest
    needs:
      - changed
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Run helm-docs
        run: .github/helm-docs.sh

  kubeval-chart:
    runs-on: ubuntu-latest
    needs:
      - changed
    strategy:
      matrix:
        # When changing versions here, check that the version exists at: https://github.com/instrumenta/kubernetes-json-schema
        k8s:
          - v1.14.10
          - v1.16.4
          - v1.18.1
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Add default helm repo
        run: helm repo add stable https://charts.helm.sh/stable && helm repo update
      - name: Add datadog helm repo
        run: helm repo add datadog https://helm.datadoghq.com && helm repo update
      - name: Run kubeval
        env:
          KUBERNETES_VERSION: ${{ matrix.k8s }}
          CHANGED_CHARTS: ${{needs.changed.outputs.charts}}
        run: .github/kubeval.sh

  install-chart:
    name: install-chart
    runs-on: ubuntu-latest
    needs:
      - lint-chart
      - kubeval-chart
    strategy:
      matrix:
        k8s:
          - v1.14.10
          - v1.16.9
          - v1.18.4
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Create kind ${{ matrix.k8s }} cluster
        uses: helm/kind-action@master
        with:
          node_image: kindest/node:${{ matrix.k8s }}
      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.0.1
      - name: Run chart-testing (install)
        run: ct install --config .github/ct.yaml

  pr-validated:
    name: pr-validated
    runs-on: ubuntu-latest
    needs:
      - install-chart
    steps:
      - name: validate
        run: echo "PR OK"