[Solved] How can you ensure a ReplicaSet only manages pods with label app=web and env=prod? — Ans: Set selector.matchLabels to {app: web, env: prod} and pod template labels the... | Kubernetes

Kubernetes - ReplicaSets and Deployments

How can you ensure a ReplicaSet only manages pods with label app=web and env=prod?

ASet selector.matchLabels to {app: web} only and pod template labels to {env: prod}

BSet selector.matchLabels to {app: web, env: prod} but pod template labels to {app: web}

CSet selector.matchLabels to {env: prod} only and pod template labels to {app: web}

DSet selector.matchLabels to {app: web, env: prod} and pod template labels the same

Step-by-Step Solution

Solution:

Step 1: Match all labels in selector and pod template
The selector must include both labels and pod template must have the same labels.
Step 2: Check mismatches
If pod labels miss any selector label, ReplicaSet will not manage pods correctly.
Final Answer:
Set selector and pod template labels both to {app: web, env: prod} -> Option D
Quick Check:
Selector and pod labels must match exactly [OK]

Quick Trick: Selector and pod labels must be identical sets [OK]

Common Mistakes:

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How can you ensure a ReplicaSet only manages pods with label app=web and env=prod?