[Solved] Given this ConfigMap YAML snippet for feature flags:apiVersion: v1 kind: ConfigMap metadata: name: feature-flags data: FEATURE_X_ENABLED: "true" FEATURE_Y_ENABLED:... | Kubernetes

Kubernetes - Advanced Deployment Patterns

Given this ConfigMap YAML snippet for feature flags:

apiVersion: v1
kind: ConfigMap
metadata:
  name: feature-flags
data:
  FEATURE_X_ENABLED: "true"
  FEATURE_Y_ENABLED: "false"

What will be the value of FEATURE_Y_ENABLED when accessed as an environment variable in a pod?

Afalse

Btrue

Cnull

Dundefined

Step-by-Step Solution

Solution:

Step 1: Read ConfigMap data values
The ConfigMap sets FEATURE_Y_ENABLED to the string "false" explicitly.
Step 2: Understand environment variable mapping
When injected as env vars, values are strings exactly as in ConfigMap, so FEATURE_Y_ENABLED will be "false".
Final Answer:
false -> Option A
Quick Check:
ConfigMap value "false" = env var "false" [OK]

Quick Trick: Env vars get exact string values from ConfigMap [OK]

Common Mistakes:

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