如果你想在 Kubernetes 中使用 NFS 存储，可以按照以下步骤创建存储类和 PVC：

1、创建rbac.yaml 文件

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apiVersion: v1
kind: ServiceAccount
metadata:
  name: nfs-client-provisioner
  # replace with namespace where provisioner is deployed
  namespace: default        #根据实际环境设定namespace,下面类同
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: nfs-client-provisioner-runner
rules:
  - apiGroups: [""]
    resources: ["persistentvolumes"]
    verbs: ["get", "list", "watch", "create", "delete"]
  - apiGroups: [""]
    resources: ["persistentvolumeclaims"]
    verbs: ["get", "list", "watch", "update"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["create", "update", "patch"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: run-nfs-client-provisioner
subjects:
  - kind: ServiceAccount
    name: nfs-client-provisioner
    # replace with namespace where provisioner is deployed
    namespace: default
roleRef:
  kind: ClusterRole
  name: nfs-client-provisioner-runner
  apiGroup: rbac.authorization.k8s.io
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: leader-locking-nfs-client-provisioner
    # replace with namespace where provisioner is deployed
  namespace: default
rules:
  - apiGroups: [""]
    resources: ["endpoints"]
    verbs: ["get", "list", "watch", "create", "update", "patch"]
---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: leader-locking-nfs-client-provisioner
subjects:
  - kind: ServiceAccount
    name: nfs-client-provisioner
    # replace with namespace where provisioner is deployed
    namespace: default
roleRef:
  kind: Role
  name: leader-locking-nfs-client-provisioner
  apiGroup: rbac.authorization.k8s.io

  • 根据实际环境设定namespace。

2、创建nfs-provisioner.yaml 文件

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apiVersion: apps/v1
kind: Deployment
metadata:
  name: nfs-client-provisioner
  labels:
    app: nfs-client-provisioner
  namespace: default
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: nfs-client-provisioner
  template:
    metadata:
      labels:
        app: nfs-client-provisioner
    spec:
      serviceAccountName: nfs-client-provisioner
      containers:
        - name: nfs-client-provisioner
          image: gcr.io/k8s-staging-sig-storage/nfs-subdir-external-provisioner:v4.0.0
          volumeMounts:
            - name: nfs-client-root
              mountPath: /persistentvolumes
          env:
            - name: PROVISIONER_NAME
              value: default-nfs-storage
            - name: NFS_SERVER
              value: 192.168.10.14
            - name: NFS_PATH  
              value: /export
      volumes:
        - name: nfs-client-root
          nfs:
            server: 192.168.10.14
            path: /export

  • PROVISIONER_NAME的值要和nfs-storage-class.yaml中provisioner一致
  • NFS_SERVER：nfs服务的IP，更换成你自己的IP
  • NFS_PATH：nfs共享的路径，更换成你自己的

3、创建nfs-pvc.yaml 文件

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apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nfs-pvc
  annotations:
    volume.beta.kubernetes.io/storage-class: "managed-nfs-storage"
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi

  • metadata.annotations.volume.beta.kubernetes.io/storage-class的值要和nfs-storage-class.yaml中的metadata.name一致

4、创建nfs-storage-class.yaml 文件

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apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: managed-nfs-storage
provisioner: default-nfs-storage
parameters:
  archiveOnDelete: "false"

5、执行

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sudo kubectl apply -f rbac.yaml
sudo kubectl apply -f nfs-pvc.yaml
sudo kubectl apply -f nfs-provisioner.yaml
sudo kubectl apply -f nfs-storage-class.yaml

6、查看结果

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diky@ubuntu:/opt/components$ sudo kubectl get pv,pvc,sc,pod
NAME                                                        CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM             STORAGECLASS          REASON   AGE
persistentvolume/pvc-495ff088-59ff-4bdb-8c46-1ba65800eace   5Gi        RWX            Delete           Bound    default/nfs-pvc   managed-nfs-storage            62m

NAME                            STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS          AGE
persistentvolumeclaim/nfs-pvc   Bound    pvc-495ff088-59ff-4bdb-8c46-1ba65800eace   5Gi        RWX            managed-nfs-storage   23h

NAME                                               PROVISIONER             RECLAIMPOLICY   VOLUMEBINDINGMODE      ALLOWVOLUMEEXPANSION   AGE
storageclass.storage.k8s.io/local-path (default)   rancher.io/local-path   Delete          WaitForFirstConsumer   false                  47h
storageclass.storage.k8s.io/managed-nfs-storage    default-nfs-storage     Delete          Immediate              false                  25h

NAME                                          READY   STATUS    RESTARTS      AGE
pod/nfs-client-provisioner-7f596764c4-zc8kk   1/1     Running   1 (61m ago)   64m

  • 如果pvc的STATUS为Bound就说明已经部署好了