[Solved] Given this RoleBinding YAML snippet, what does it do?apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: read-pods subjects: - kind: User name: alice apiGroup: rbac.... | Kubernetes

Kubernetes - RBAC and Security

Given this RoleBinding YAML snippet, what does it do?

apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: read-pods
subjects:
- kind: User
  name: alice
  apiGroup: rbac.authorization.k8s.io
roleRef:
  kind: Role
  name: pod-reader
  apiGroup: rbac.authorization.k8s.io

ARevokes all permissions from user 'alice'

BGrants user 'alice' permission to create pods cluster-wide

CGrants user 'alice' permission to read pods in the namespace

DBinds user 'alice' to a ClusterRole named pod-reader

Step-by-Step Solution

Solution:

Step 1: Analyze RoleBinding components
The RoleBinding binds a Role named 'pod-reader' to user 'alice' in the current namespace.
Step 2: Understand Role permissions
The Role 'pod-reader' typically allows reading pods (get, watch, list) in the namespace.
Final Answer:
Grants user 'alice' permission to read pods in the namespace -> Option C
Quick Check:
RoleBinding + Role = namespace-scoped permission [OK]

Quick Trick: RoleBinding links Role permissions to a user in a namespace [OK]

Common Mistakes:

Confusing RoleBinding with ClusterRoleBinding
Assuming permissions are cluster-wide
Thinking it revokes permissions

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Given this RoleBinding YAML snippet, what does it do?

Step 1: Analyze RoleBinding components

Step 2: Understand Role permissions

Final Answer:

Quick Check:

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