ConfigMap - Volume

configmap volume mount

Create ConfigMap

apiVersion: v1
kind: ConfigMap
metadata:
  name: log-config
data:
  log_level: info
YAML
복사

pod /etc/config/ 경로로 마운트

apiVersion: v1
kind: Pod
metadata:
  name: configmap-pod
spec:
  containers:
    - name: test
      image: busybox:1.28
      command: ['sh', '-c', 'echo "The app is running!" && tail -f /dev/null']
      volumeMounts:
        - name: config-vol
          mountPath: /etc/config
  volumes:
    - name: config-vol
      configMap:
        name: log-config
        items:
          - key: log_level
            path: log_level
YAML
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kubectl apply -f log-config.yaml && kubectl apply -f log-pod.yaml
Shell
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k exec -it configmap-pod -- cat /etc/config/log_level
> info
Shell
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응용 - configmap으로 index.html 작성하고 nginx pod에 띄우기

Create ConfigMap

apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
  index.html: hello world
YAML
복사

pod /usr/share/nginx/html/ 경로로 마운트

apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod
spec:
  containers:
    - name: nginx-container
      image: nginx:latest
      volumeMounts:
        - name: nginx-vol
          mountPath: /usr/share/nginx/html/
  volumes:
    - name: nginx-vol
      configMap:
        name: nginx-config
        items:
          - key: index.html
            path: index.html
YAML
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kubectl apply -f nginx-config.yaml && kubectl apply -f nginx-pod.yaml
Shell
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kubectl exec -it nginx-pods -- curl localhost
> hello world
Shell
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