A Deployment should inject every key from ConfigMap permits-setting…

Question

A Deployment should inject every key from ConfigMap permits-settings as environment variables without listing each key. Which Pod spec pattern does that?

Accepted Answer

envFrom with configMapRef name permits-settings on the container — envFrom is the bulk dump: every ConfigMap key becomes an environment variable in one shot. Hand-picking keys is valueFrom/configMapKeyRef territory. Mounting files is a different delivery style.

Answer

volumeMounts with subPath for each key, which is the only way to create environment variables

Answer

args: ["$(permits-settings)"] on the container, relying on shell expansion of the ConfigMap name

Answer

env valueFrom with secretKeyRef pointing at the ConfigMap name as if it were a Secret

A Deployment should inject every key from ConfigMap permits-settings as environment variables without listing each key. Which Pod spec pattern does that?

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