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Which Kubernetes feature allows applications to consume updated configuration data without restarting Pods?

hard📝 Workflow Q8 of 15
Kubernetes - ConfigMaps
Which Kubernetes feature allows applications to consume updated configuration data without restarting Pods?
AUsing environment variables from ConfigMaps
BMounting ConfigMaps as volumes inside Pods
CEmbedding configuration inside container images
DUsing Secrets for all configuration data
Step-by-Step Solution
Solution:

  1. Step 1: Review ConfigMap consumption methods

    ConfigMaps can be consumed as environment variables or mounted volumes.

  2. Step 2: Dynamic updates

    When mounted as volumes, ConfigMap updates are reflected inside the Pod filesystem automatically.

  3. Step 3: Environment variables are static

    Env vars do not update without Pod restart.

  4. Final Answer:

    Mounting ConfigMaps as volumes inside Pods -> Option B

  5. Quick Check:

    Volume mounts reflect ConfigMap changes live [OK]
Quick Trick: Mount ConfigMaps as volumes for live updates [OK]
Common Mistakes:
  • Using env vars expecting live updates
  • Embedding config in images for dynamic changes
  • Using Secrets for non-sensitive config

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