K8S volumn 挂载文件

loveLifeLoveCoding

已于 2024-09-23 10:11:35 修改

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分类专栏： Docker 文章标签： kubernetes 容器云原生

于 2024-09-20 17:34:29 首次发布

本文链接：https://blog.youkuaiyun.com/loveLifeLoveCoding/article/details/142390924

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volumeMounts:
- name: cfg-vol
  mountPath: /etc/grafana/provisioning/datasources
- name: cfg-ini
  mountPath: /usr/share/grafana/conf/sample.ini
  subPath: sample.ini
- name: cfg-temp
  mountPath: /usr/share/grafana/conf/test.json
  subPath: test.json

  volumes:
  - name: cfg-vol
    configMap:
      name: cm-grafana-yaml
  - name: cfg-ini
    configMap:
      name: cm-grafana-ini
  - name: cfg-temp
    configMap:
      name: cm-grafana-temp

可以在一个 configMap 中挂载多个文件，也可以一个文件挂载一个 configMap，

上面的例子是一个文件挂载一个 configMap

下面举例一个 configMap 挂载多个文件

需求

将一个configmap 内的两个文件挂载在一个pod的不同目录下

/app/conf/grafanaoracle.properties
/app/start-timeshift.sh

创建一个configmap

kind: ConfigMap
apiVersion: v1
metadata:
  labels:
    app.kubernetes.io/managed-by: Helm
  name: test-config
data:
  grafanaoracle.properties: |
    name=kevin
    nage=19
  start-timeshift.sh: |
    #!/bin/sh
    cd /app/influxdb-timeshift-proxy
    INFLUXDB=nms-influxdb:8086 /usr/bin/npm run start

创建一个deploy

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    zcm-app: test-configmap
  name: test-configmap
spec:
  replicas: 1
  selector:
    matchLabels:
      zcm-app: test-configmap
  template:
    metadata:
      labels:
        zcm-app: test-configmap
    spec:
      containers:
      - env:
        - name: CLOUD_APP_NAME
          value: paas_test-configmap
        image: nginx
        imagePullPolicy: IfNotPresent
        name: test-configmap
        ports:
        - containerPort: 9999
          name: http-oracle
          protocol: TCP
        volumeMounts:       # 关键代码 开始
        - mountPath: /app/start-timeshift.sh
          name: properties
          readOnly: true
          subPath: start-timeshift.sh
        - mountPath: /app/conf/grafanaoracle.properties
          name: properties
          readOnly: true
          subPath: grafanaoracle.properties
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      volumes:
      - configMap:
          defaultMode: 420
          items:
          - key: grafanaoracle.properties  # key 和 path 同名即可
            path: grafanaoracle.properties
          - key: start-timeshift.sh
            path: start-timeshift.sh
          name: test-configmap
        name: properties 	# 关键代码 结束

item 部分可以省略