[Solved] Given this PDB YAML snippet, what is the maximum number of pods that can be disrupted at once?spec: minAvailable: 3 selector: matchLabels: app: frontend | Kubernetes

Kubernetes - Production Best Practices

Given this PDB YAML snippet, what is the maximum number of pods that can be disrupted at once?

spec:
  minAvailable: 3
  selector:
    matchLabels:
      app: frontend

A3 pods

BTotal pods minus 3

CAt most 3 pods

DAt most 1 pod

Step-by-Step Solution

Solution:

Step 1: Understand minAvailable meaning
minAvailable: 3 means at least 3 pods must be running during disruptions.
Step 2: Calculate max disruptions
Maximum pods disrupted = total pods matching selector minus minAvailable (3). So if total pods are N, max disruptions = N - 3.
Final Answer:
Total pods minus 3 -> Option B
Quick Check:
Max disruptions = total pods - minAvailable = A [OK]

Quick Trick: Max disruptions = total pods - minAvailable [OK]

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Given this PDB YAML snippet, what is the maximum number of pods that can be disrupted at once?