all-helm-lint.yml

name: Helm Chart Lint

on:
  workflow_call:
    inputs:
      chart_path:
        description: 'Path to Helm chart directory'
        required: true
        type: string
      helm_version:
        description: 'Helm version to use'
        required: false
        type: string
        default: 'v3.12.0'
      chart_name:
        description: 'Chart name for templating (defaults to chart directory name)'
        required: false
        type: string
        default: ''
      values_file:
        description: 'Path to values file for templating validation'
        required: false
        type: string
        default: ''
      runs-on:
        type: string
        required: false
        default: '["self-hosted", "ubuntu-22.04"]'

permissions:
  contents: read

jobs:
  lint:
    name: Lint Helm Chart
    runs-on: ${{ fromJSON(inputs.runs-on) }}
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Helm
        uses: azure/setup-helm@v4
        with:
          version: ${{ inputs.helm_version }}

      - name: Lint chart
        run: |
          echo "🔍 Linting Helm chart at ${{ inputs.chart_path }}..."
          helm lint ${{ inputs.chart_path }}
          echo "✅ Chart linting passed"

      - name: Template chart
        run: |
          # Determine chart name (from input or extract from directory)
          CHART_NAME="${{ inputs.chart_name }}"
          if [ -z "$CHART_NAME" ]; then
            CHART_NAME=$(basename ${{ inputs.chart_path }})
          fi

          echo "📋 Templating chart '$CHART_NAME' with default values..."

          # Use custom values file if provided, otherwise use default
          VALUES_FLAG=""
          if [ -n "${{ inputs.values_file }}" ]; then
            VALUES_FLAG="--values ${{ inputs.values_file }}"
          elif [ -f "${{ inputs.chart_path }}/values.yaml" ]; then
            VALUES_FLAG="--values ${{ inputs.chart_path }}/values.yaml"
          fi

          helm template "$CHART_NAME" ${{ inputs.chart_path }} $VALUES_FLAG
          echo "✅ Chart templating passed"

      - name: Package chart (validation only)
        run: |
          echo "📦 Packaging chart for validation..."
          helm package ${{ inputs.chart_path }}
          ls -la *.tgz
          echo "✅ Chart packaging successful"