What is the purpose of Kubernetes ValidatingAdmissionPolicy (VAP) introduced in Kubernetes 1.26?

Question

Kubernetes Fundamentals — Hard

What is the purpose of Kubernetes ValidatingAdmissionPolicy (VAP) introduced in Kubernetes 1.26?

Accepted Answer

ValidatingAdmissionPolicy (VAP) streamlines policy management by integrating CEL expressions directly into the Kubernetes API. This approach eliminates the need for external webhook servers, reducing complexity and improving reliability. The correct answer highlights VAP's ability to enable policy-as-code patterns natively. Incorrect options misrepresent VAP's purpose, such as replacing API versions or validating performance.