Kubernetes Practical By Samson Tanimawo, PhD Published Oct 5, 2025 4 min read

Cluster Policy Tooling

OPA Gatekeeper vs Kyverno. Decision.

OPA

Rego language. Powerful; complex.

Best for complex policies.

YAML-based. K8s-native syntax.

Best for K8s-specific policies.

Kyverno for most teams. OPA when Rego's expressiveness needed.

Both work.