ConfigMap Theory

Kubernetes has an API resource called a ConfigMap (CM) that lets us store configuration data outside of Pods and inject it at runtime.

ConfigMaps are first-class objects in the core API group. They’re also v1. This tells us a few things:

1. They’re stable (v1).

2. They’ve been around for a while (new stuff never goes in the core API group).

3. We can define and deploy them in YAML files.

4. We can manage them with kubectl.

We’ll typically ...