Which Kubernetes resource is used to store key-value configuration data for pods?

Which Kubernetes resource is used to store key-value configuration data for pods?

• A. ConfigMap
• B. Secret
• C. PersistentVolume
• D. Endpoints

Answer: (A)

ConfigMap is used to store key-value configuration data for pods. It holds non-sensitive configuration data as pairs of keys and values, and you can provide that data to a pod either by rendering it as environment variables or by mounting it as files in a volume so the application reads its settings from disk. This separation of configuration from the container image makes updates easier without rebuilding images. The other resources serve different purposes: Secrets are for sensitive information (often encoded and access-controlled), PersistentVolume is for durable storage, and Endpoints is for mapping a service to the actual pod IPs.

ConfigMap is used to store key-value configuration data for pods. It holds non-sensitive configuration data as pairs of keys and values, and you can provide that data to a pod either by rendering it as environment variables or by mounting it as files in a volume so the application reads its settings from disk. This separation of configuration from the container image makes updates easier without rebuilding images. The other resources serve different purposes: Secrets are for sensitive information (often encoded and access-controlled), PersistentVolume is for durable storage, and Endpoints is for mapping a service to the actual pod IPs.