## vi env.properties
env_sever=node1
env_name=myConfig

## kubectl create configmap myconfigmap-1 --from-env-file=env.properties

## kubectl get configmap myconfigmap-1 -o yaml

## kubectl create configmap myconfigmap-2 --from-literal=env_sever=node1 --from-literal=env_name=myConfig

## kubectl get configmaps myconfigmap-2 -o yaml

*** Example:1 ****
## vi myconfigmap3.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: myconfigmap-3
namespace: default
data:
env_text1: Hello
env_text2: Students


## kubectl create -f myconfigmap3.yaml

## kubectl get ConfigMap

*** Example:2 ***
## vi my-configmap-pod.yaml

apiVersion: v1
kind: Pod
metadata:
name: mypod-configmap
spec:
containers:
- name: mybusybox
image: busybox
command: ['sh', '-c', "echo $(env_text1_key) $(env_text2_key) && sleep 3600"]
env:
- name: env_text1_key
valueFrom:
configMapKeyRef:
name: myconfigmap-3
key: env_text1
- name: env_text2_key
valueFrom:
configMapKeyRef:
name: myconfigmap-3
key: env_text2
restartPolicy: Never

## kubectl create -f my-configmap-pod.yaml

## kubectl get pods

## kubectl logs mypod-configmap

## kubectl exec mypod-configmap -- printenv

*** Example:3 ***
## vi my-config-vol.yaml

apiVersion: v1
kind: Pod
metadata:
name: my-config-vol-pod
spec:
containers:
- name: my-config-vol-container
image: busybox
command: ['sh', '-c', "echo $(ls /etc/config/) && sleep 3600"]
volumeMounts:
- name: my-config-volume
mountPath: /etc/config
volumes:
- name: my-config-volume
configMap:
name: myconfigmap-3
restartPolicy: Never

## kubectl create -f my-config-vol.yaml

## kubectl get pods

## kubectl logs my-config-vol-pod

## kubectl exec my-config-vol-pod -- cat /etc/config/env_text1

свернуть