helm-chart-lint.yml

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name: Lint and Test Charts

# Run chart linting and tests on each pull request
on:
  # Runs automatically on pushes and PRs into main and release branches, if changes to the chart have been performed
  push:
    branches:
      - main
      - 'releases/**'
    paths:
      - .github/workflows/**
      - charts/**
  pull_request:
    branches:
      - main
      - 'releases/**'
    paths:
      - .github/workflows/**
      - charts/**
  # Can be triggered to investigate upgrades
  workflow_dispatch:
    inputs:
      node_image:
        description: 'kindest/node image for k8s kind cluster'
        # k8s version from 3.1 release as default
        default: 'kindest/node:v1.24.6'
        required: false
        type: string
      upgrade_from:
        description: 'chart version to upgrade from'
        # chart version from 3.2 release as default
        default: 'x.x.x'
        required: false
        type: string

jobs:
  lint-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.10.3

      - uses: actions/setup-python@v4
        with:
          python-version: 3.9

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.3.1

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
          if [[ -n "$changed" ]]; then
            echo "CHART_CHANGED=true" >> $GITHUB_ENV
          fi

      # run chart linting
      - name: Run chart-testing (lint)
        run: ct lint --target-branch ${{ github.event.repository.default_branch }} --config charts/config/chart-testing-config.yaml