https://www.pistack.xyz/tags/policy/ Recent content in Policy on Pi Stack Hugo en-us Fri, 22 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-22-k8s-validating-admission-policies-cel-opa-gatekeeper-kyverno-guide/ Fri, 22 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-22-k8s-validating-admission-policies-cel-opa-gatekeeper-kyverno-guide/ <p>Kubernetes admission controllers intercept API requests before objects are persisted to etcd. Validating admission controllers enforce organizational policies — requiring labels, restricting container images, preventing privileged containers. This guide compares three approaches to admission control in self-hosted Kubernetes clusters.</p>