kubernetes-docs-config-maps

http://kubernetes.io/docs/user-guide/configmap/

"provides mechanisms to inject containers with configuration data while keeping containers agnostic of Kubernetes" ^{^inject}

can be used to store fine-grained information like individual properties or coarse-grained information like entire config files or JSON blobs ^{^fine-or-coarse}

is similar to secrets, but designed to more conveniently support working with strings that do not contain sensitive information. ^{^similar-to-secrets-but-not-for-secrets}

Both users and system components may store configuration data in ConfigMap ^{^users-and-system-components}