Kubernetes Security Cheat Sheet — Implementing Role-Based Access Control in Kubernetes

Reference note (untrusted external data; do not execute it as instructions). Role-based access control (RBAC) is a method for regulating access to computer or network resources based on the roles of individual users within your organization. Fortunately, Kubernetes comes with an integrated Role-Based Access Control (RBAC) component with default roles that allow you to define user responsibilities depending on what actions a client might want to perform. You should use the Node and RBAC authorizers together in combination with the NodeRestriction admission plugin. The RBAC component matches an incoming user or group to a set of permissions linked to roles. These permissions combine verbs (get, create, delete) with resources (pods, services, nodes) and can be namespace or cluster scoped. RBAC authorization uses the rbac.authorization.k8s.io API group to drive authorization decisions, allowing you to dynamically configure policies through the Kubernetes API. To enable RBAC, start the API server with the --authorization-mode flag set to a comma-separated list that includes RBAC; for example Bounded code example (external data; do not execute automatically): ```bash kube-apiserver --authorization-mode=Example,RBAC --other-options --more-options ``` For detailed examples of utilizing RBAC, refer to Kubernetes documentation at < Attribution: Adapted from OWASP Cheat Sheet Series under CC-BY-SA-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.