Note: This is an independent walkthrough by a learner and is not officially endorsed by the CNCF or Kyverno maintainers.

Summary

In this walkthrough, I enforced mandatory team labeling on Kubernetes Pods using both Kyverno's legacy ClusterPolicy and the modern CEL-based ValidatingPolicy. I learned how Kyverno extends the Kubernetes API with CRDs and how CEL-based policies run in Kyverno's admission webhook using a standard expression language instead of Kyverno's custom pattern-matching engine. This was built locally on a kind cluster to compare the two architectures side-by-side.

Environment Setup

Everything was tested locally using a standard kind cluster. I Note: This is an independent walkthrough by a learner and is not officially endorsed by the CNCF or Kyverno maintainers.

1. Summary

In this walkthrough, I enforced mandatory team labeling on Kubernetes Pods using both Kyverno's legacy ClusterPolicy and the modern CEL-based ValidatingPolicy .…