ConfigMaps

• Saves the environment data in key-value format

• 2 steps are involved here:

  • create configmap

  • Inject into pod

Create Configmap

kubectl create configmap <configmap-name> --from-literal=<key>=<value>

• Declarative Approach:

apiVersion: v1
kind: ConfigMap
metadata:
  name: <configmap-name>
data:
  APP_COLOR: pink
  APP_MODE: prod

Injecting Into Pod

spec:
  containers:
  - name: myapp
    envFrom:
    - configMapRef:
        name: <configmap-name>