github-actions/.github/workflows/lint-helm.yml at main · sparkgeo/github-actions · GitHub

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name: Lint Helm

# Reusable PR lint gate for Helm charts and Kustomize overlays. Renders each
# chart (helm template) / overlay (kustomize build) and validates the output
# against the Kubernetes API schemas with kubeconform. Blocks on any schema
# validation error.
#
# Deliberately does NOT use step-security/harden-runner: this workflow runs in
# the caller's context and may be consumed by private repos where third-party
# CI telemetry is not acceptable. See docs/approved-actions.md.

on:
  workflow_call:
    inputs:
      charts-dir:
        description: 'Directory containing Helm charts (empty to skip)'
        default: 'charts'
        type: string
      kustomize-dir:
        description: 'Directory containing Kustomize overlays (empty to skip)'
        default: ''
        type: string
      kubernetes-version:
        description: 'Target Kubernetes API version for schema validation'
        default: '1.32.0'
        type: string
      ignore-missing-schemas:
        description: 'Skip validation for kinds with no schema (e.g. CRDs)'
        default: false
        type: boolean
      actions-ref:
        description: >-
          Ref or commit SHA of sparkgeo/github-actions to load the kubeconform
          composite from. Pin this to the SAME SHA you pinned lint-helm.yml to,
          so the whole workflow is immutable.
        default: 'main'
        type: string

permissions:
  contents: read

jobs:
  kubeconform:
    name: Kubeconform
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - name: Checkout repository under test
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
        with:
          persist-credentials: false

      # Load the composite action at the caller-pinned ref into a fixed path,
      # then invoke it locally. Keeps the action reference immutable (no mutable
      # cross-repo @main) while honouring the repo's SHA-pin policy.
      - name: Checkout kubeconform composite action
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
        with:
          repository: sparkgeo/github-actions
          ref: ${{ inputs.actions-ref }}
          path: .sparkgeo-github-actions
          persist-credentials: false

      - uses: ./.sparkgeo-github-actions/.github/actions/kubeconform
        with:
          charts-dir: ${{ inputs.charts-dir }}
          kustomize-dir: ${{ inputs.kustomize-dir }}
          kubernetes-version: ${{ inputs.kubernetes-version }}
          ignore-missing-schemas: ${{ inputs.ignore-missing-schemas }}