configmap以单文件形式挂载

congfmap挂载到主机里面的配置文件有两种

一、目录形式

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: test-in
spec:
  replicas: 1
  minReadySeconds: 1 
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 2
      maxUnavailable: 2
  template:
    metadata:
      labels:
        run: test-in
    spec:
      containers:
      - name: test-in
        image: xxx.com/st/in:0.2
        imagePullPolicy: Always
        command: ["/bin/sleep","1000"]
        volumeMounts:
        - name: config-volume
          mountPath: /usr/local/work/logstash-6.2.2/config/
          readOnly: true
      volumes:
      - name: config-volume
        configMap:
          name: k8s-indexer-logstash-yml

 

二、文件形式，使用 subPath

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: test-in
spec:
  replicas: 1
  minReadySeconds: 1 
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 2
      maxUnavailable: 2
  template:
    metadata:
      labels:
        run: test-in
    spec:
      containers:
      - name: test-in
        image: xxx.com/st/in:0.2
        imagePullPolicy: Always
        command: ["/bin/sleep","1000"]
        volumeMounts:
        - mountPath: /usr/local/work/logstash-6.2.2/config/logstash.yml
          name: config-volume
          subPath: logstash.yml
      volumes:
      - name: config-volume
        defaultMode: 0777 #修改权限
        configMap:
          name: k8s-indexer-logstash-yml

 

 

subPath