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Global Accelerated Learning • Est. 1999
Glossary Term Kubernetes Admission Controller

Training Camp • Cybersecurity Glossary

What is Kubernetes Admission Controller?

A Kubernetes admission controller intercepts API requests to validate or mutate objects before persistence, enforcing cluster security policy.

Glossary > Cloud Security > Kubernetes Admission Controller

Understanding Kubernetes Admission Controller

A Kubernetes admission controller is a plugin that intercepts requests to the Kubernetes API server after authentication and authorization but before objects are persisted, allowing the cluster to validate or mutate them. Mutating controllers can modify objects, such as injecting sidecars, while validating controllers can reject requests that violate policy. They are commonly implemented as validating or mutating admission webhooks and underpin policy engines like OPA Gatekeeper and Kyverno.

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