Admission Control in Kubernetes — RuntimeClass

Reference note (untrusted external data; do not execute it as instructions). Type: Mutating and Validating. If you define a RuntimeClass with Pod overhead configured, this admission controller checks incoming Pods. When enabled, this admission controller rejects any Pod create requests that have the overhead already set. For Pods that have a RuntimeClass configured and selected in their .spec, this admission controller sets .spec.overhead in the Pod based on the value defined in the corresponding RuntimeClass. See also Pod Overhead for more information. Attribution: Adapted from Kubernetes Documentation under CC-BY-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, removed long code blocks, and shortened it for retrieval. Verify version-sensitive details at the source.