# kubectl get configmap

# kubectl create configmap dev-config --from-literal=app.mem=2048m

# kubectl get configmap

# kubectl get configmap dev-config -o yaml

# vim dev.properties

app.env:dev

app.mem=2048m

app.properties=dev.env.url

:wq!

# kubectl create configmap dev-config1 --from-file=dev.properties

# kubectl get configmap

# kubectl get configmap dev-config1 -o yaml

Use configmap for a pod

vim pod-configmap.yml

kind: Pod

apiVersion: v1

metadata:

name: pod-configmap

spec:

containers:

- image: nginx

name: c1

volumeMounts:

- name: config-volume

mountPath: /etc/config

volumes:

- name: config-volume

configMap:

name: dev-config1

restartPolicy: Never

:wq!

# kubectl apply -f pod-configmap.yml

# kubectl exec -it pod-configmap bash

# cd /etc/config

you will find the dev.properties file and configurations