Chapter 13. ConfigMaps and Secrets Flashcards
What is a configMap ?
One way to think of a ConfigMap is as a Kubernetes object that defines a small filesystem. Another way is as a set of variables that can be used when defining the environment or command line for your containers. The key thing is that the ConfigMap is combined with the Pod right before it is run. This means that the container image and the Pod definition itself can be reused across many apps by just changing the ConfigMap that is used.
What is a secrets ?
Secrets enable container images to be created without bundling sensitive data. This allows containers to remain portable across environments. Secrets are exposed to Pods via explicit declaration in Pod manifests and the Kubernetes API. In this way, the Kubernetes secrets API provides an application-centric mechanism for exposing sensitive configuration information to applications in a way that’s easy to audit and leverages native OS isolation primitives.
