Which of the following is the correct syntax to load all keys from a ConfigMap named app-config as environment variables in a pod spec?

easy📝 Syntax Q12 of 15

Kubernetes - ConfigMaps

Which of the following is the correct syntax to load all keys from a ConfigMap named app-config as environment variables in a pod spec?

AenvFrom: - configMapRef: name: app-config

Benv: - name: app-config valueFrom: configMapKeyRef: name: app-config

CconfigMap: name: app-config

DenvFrom: - secretRef: name: app-config

Step-by-Step Solution

Solution:

Step 1: Identify correct envFrom usage
To load all keys as env vars, use envFrom with configMapRef and the ConfigMap name.
Step 2: Check options for syntax correctness
envFrom: - configMapRef: name: app-config correctly uses envFrom with configMapRef. Others misuse keys or use secretRef incorrectly.
Final Answer:
envFrom: - configMapRef: name: app-config -> Option A
Quick Check:
Use envFrom + configMapRef for all keys [OK]

Quick Trick: Use envFrom with configMapRef to load all keys [OK]

Common Mistakes:

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