Add helm chart linting to CI

.github/workflows/charts.yml

@@ -0,0 +1,30 @@
+name: Helm Charts
+
+on:
+ push:
+ pull_request:
+
+jobs:
+ lint:
+ # Deduplicate jobs from pull requests and branch pushes within the same repo.
+ if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository
+ runs-on: iris-cpu
+ container: docker.io/library/ubuntu:latest
+ steps:
+ - name: Checkout source
+ uses: actions/checkout@v4.1.1
+ with:
+ fetch-depth: 0
+
+ - name: Setup Helm
+ uses: azure/setup-helm@v3.5
+
+ - name: Setup chart-testing
+ uses: helm/chart-testing-action@v2.6.1
+
+ - name: Lint
+ run: >
+ ct
+ lint
+ --target-branch=${{ github.event.repository.default_branch }}
+ --validate-maintainers=false