[Solved] What is the primary purpose of a ClusterRole in Kubernetes? — Ans: To define permissions that apply across all namespaces in the cluster | Kubernetes

Kubernetes - RBAC and Security

What is the primary purpose of a ClusterRole in Kubernetes?

ATo define permissions that apply across all namespaces in the cluster

BTo restrict access to a single namespace only

CTo create user accounts in Kubernetes

DTo manage network policies within a namespace

Step-by-Step Solution

Solution:

Step 1: Understand the scope of ClusterRole
A ClusterRole defines permissions that are cluster-wide or can be used in multiple namespaces.
Step 2: Compare with Role
A Role is limited to a single namespace, while ClusterRole is not limited to any namespace.
Final Answer:
To define permissions that apply across all namespaces in the cluster -> Option A
Quick Check:
ClusterRole scope = cluster-wide [OK]

Quick Trick: ClusterRoles apply cluster-wide, Roles apply namespace-wide [OK]

Common Mistakes:

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What is the primary purpose of a ClusterRole in Kubernetes?