ConfigMap挂载导致容器目录覆盖的问题解决

ConfigMap挂载导致容器目录覆盖的问题解决

问题表现：

• 将configmap的配置项挂载到指定的容器目录中，导致容器的被挂载目录下的所有文件不可见，只可见通过configmap挂载的文件

解决办法：
1、volumes中设置path
2、volumeMounts中这是subPath

ConfigMap

apiVersion: v1
kind: ConfigMap
metadata:
  name: smartcity-frontend-config
  namespace: portal-frontend
data:
  config-js: | xxxx自定义文件内容
  log4j-js-json: | xxxx自定义文件内容

Deployment（正确挂载方式）

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: smartcity-frontend
  namespace: portal-frontend
spec:
  replicas: 2
  selector:
    matchLabels:
      app: smartcity-frontend
  template:
    metadata:
      labels:
        app: smartcity-frontend
    spec:
      containers:
      - name: node
        image: hub.cloud.pub/frontend/node:2.12.4
        imagePullPolicy: Always
        ports:
        - containerPort: 8080
        volumeMounts:
        - name: smartcity-frontend-config
          mountPath: /opt/frontend/config.js
          subPath: path/to/config.js
        - name: smartcity-frontend-config
          mountPath: /opt/frontend/log4js.json
          subPath: path/to/log4js.json
      volumes:
      - name: smartcity-frontend-config
        configMap:
          name: smartcity-frontend-config
          items:
          - key: config-js
            path: path/to/config.js
          - key: log4j-js-json
            path: path/to/log4js.json