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You applied a ConfigMap with feature flags but your pods do not reflect the updated flags. What is a likely cause?

medium📝 Troubleshoot Q6 of 15
Kubernetes - Advanced Deployment Patterns
You applied a ConfigMap with feature flags but your pods do not reflect the updated flags. What is a likely cause?
AConfigMaps cannot be used for feature flags
BPods need to be restarted to pick up ConfigMap changes
CFeature flags must be stored in Secrets, not ConfigMaps
DConfigMap was created in the wrong namespace
Step-by-Step Solution
Solution:

  1. Step 1: Understand ConfigMap update behavior

    Pods do not automatically reload ConfigMap changes.

  2. Step 2: Identify solution

    Restarting pods forces them to reload updated ConfigMap data.

  3. Final Answer:

    Pods need to be restarted to pick up ConfigMap changes -> Option B

  4. Quick Check:

    Pod restart required for ConfigMap update [OK]
Quick Trick: Restart pods to apply ConfigMap changes [OK]
Common Mistakes:
  • Assuming automatic reload without restart
  • Thinking feature flags must be Secrets
  • Ignoring namespace mismatch

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