ConfigMap Theory
Explore the role of ConfigMaps in Kubernetes for managing non-sensitive configuration data separately from Pods. Learn how to inject data through environment variables, volumes, and startup commands to support flexible container configurations.
We'll cover the following...
We'll cover the following...
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:
They’re stable (
v1).They’ve been around for a while (new stuff never goes in the core API group).
We can define and deploy them in YAML files.
We can manage them with
kubectl.
We’ll typically ...