kubernetes - 谷歌云平台 (GCP) : mounting multiple volumes kubernetes

Question

我正在通过 Google 云平台 (GCP) kubernetes 引擎设置一个容器。我需要安装多个卷，因为容器是以这种方式创建的。这些卷必须是持久的，因此我采用了 NFS 方法。我有一个运行 NFS 服务的虚拟机，它导出了几个目录。

我在下面给出了 yaml 示例文件。

deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: myapp-branch
  labels:
    component: myapp-branch
spec:
  template:
    metadata:
      labels:
        component: myapp-branch
    spec:
      imagePullSecrets:
       - name: myprivatekey
      containers:
        - name: myapp-branch
          image: mydockerrepo/myapp/webapp:6.6
          command: ["/bin/sh", "-ec", "while :; do echo '.'; sleep 100 ; done"]
          env:
          - name: myapp_UID
            value: "1011"
          - name: myapp_GID
            value: "1011"
          - name: myapp_USER 
            value: "myapp_branch"
          - name: myapp_XMS_G
            value: "1"
          - name: myapp_XMX_G
            value: "6"
          volumeMounts:
          - mountPath: /mypath1/path1
            name: pvstorestorage
          - mountPath: /mypath2/path2
            name: mykeys
      volumes:
      - name: pvstorestorage
        persistentVolumeClaim:
          claimName: standalone
      - name: mykeys
        persistentVolumeClaim:
          claimName: conf

PVAndPVC.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: standalone
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: 10.2.1.6
    path: "/exports/path1"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: standalone
spec:
  accessModes:
    - ReadWriteMany
  storageClassName: ""
  resources:
    requests:
      storage: 1Gi
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: conf
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: 10.2.1.6
    path: "/exports/path2"

---    

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: conf
spec:
  accessModes:
    - ReadWriteMany
  storageClassName: ""
  resources:
    requests:
      storage: 1Gi

应用它们后，我看到容器(/mypath1/path1 和/mypath2/path2)的两个卷挂载都挂载到 nfs 的相同挂载点(/exports/path2，第二个)。这发生在 persistentVolumeClaim 上，我尝试了 EmptyDir，它工作正常。如果有人尝试过这种方法并知道解决方案，那将非常有帮助。

Answer 1

您必须在您的 PVC (PersistentVolumeClaim) 定义中添加规则，使它们匹配各自正确的 PV (PersistentVolume)。

有相同的名字是不够的。

将您的 PV 和 PVC 定义更改为类似(未测试)的内容:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: standalone
  labels:
    type: standalone
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: 10.2.1.6
    path: "/exports/path1"
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: conf
  labels:
    type: conf
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: 10.2.1.6
    path: "/exports/path2"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: standalone
spec:
  accessModes:
    - ReadWriteMany
  storageClassName: ""
  resources:
    requests:
      storage: 1Gi
  selector:
    matchLabels:
      type: standalone
---    

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: conf
spec:
  accessModes:
    - ReadWriteMany
  storageClassName: ""
  resources:
    requests:
      storage: 1Gi
  selector:
    matchLabels:
      type: conf

(通常，我在 PV 中添加了一个 metadata.labels.type，在 PVC 中添加了一个 spec.selector.matchLabels)

此外，使用 kubectl get pv 和 kubectl get pvc 查看它是如何工作的并简化调试