RBAC (Role-Based Access Control)Advanced
1Question 1 of 1
yamlHow does Role-Based Access Control (RBAC) secure Kubernetes clusters?
Explanation & Concept
RBAC uses Roles (scoped to a namespace) or ClusterRoles (cluster-wide) to define permitted operations (verbs: `get`, `list`, `create`, `delete`) on resources (apiGroups: `pods`, `services`), bound to users or ServiceAccounts via RoleBindings.
Code Example
yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
namespace: default
name: pod-reader
rules:
- apiGroups: [""]
resources: ["pods"]
verbs: ["get", "list", "watch"]How It Works & Key Takeaways
RBAC enforces the principle of least privilege, preventing service accounts and CI/CD pipelines from accessing unauthorized cluster resources.
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