[Solved] After applying this ReplicaSet YAML, how many pods will Kubernetes attempt to maintain?apiVersion: apps/v1 kind: ReplicaSet metadata: name: example-rs spec: replicas: 4 selector: matchLabels: role:... | Kubernetes

Kubernetes - ReplicaSets and Deployments

After applying this ReplicaSet YAML, how many pods will Kubernetes attempt to maintain?

apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: example-rs
spec:
  replicas: 4
  selector:
    matchLabels:
      role: backend
  template:
    metadata:
      labels:
        role: backend
    spec:
      containers:
      - name: app-container
        image: nginx

A4 pods

B1 pod

C0 pods

DDepends on node availability

Step-by-Step Solution

Solution:

Step 1: Check replicas field
The spec.replicas is set to 4, so Kubernetes will try to maintain 4 pods.
Step 2: Verify selector and template labels
The selector matches the pod template labels (role: backend), so pods will be created.
Final Answer:
4 pods -> Option A
Quick Check:
replicas field defines pod count [OK]

Quick Trick: replicas field sets pod count [OK]

Common Mistakes:

Ignoring selector and template label match
Assuming pods equal to 1 by default
Confusing node availability with pod count

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More Kubernetes Quizzes

After applying this ReplicaSet YAML, how many pods will Kubernetes attempt to maintain?

Step 1: Check replicas field

Step 2: Verify selector and template labels

Final Answer:

Quick Check:

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