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On this page

(kubectl) Creating a PV from an Existing SFS File System

Updated on 2025-02-18 GMT+08:00

Notes and Constraints

The following configuration example applies to clusters of Kubernetes 1.13 or earlier.

Procedure

  1. Log in to the SFS console, create a file system, and record the file system ID, shared path, and capacity.
  2. Use kubectl to connect to the cluster. For details, see Connecting to a Cluster Using kubectl.
  3. Create two YAML files for creating the PV and PVC. Assume that the file names are pv-sfs-example.yaml and pvc-sfs-example.yaml.

    touch pv-sfs-example.yaml pvc-sfs-example.yaml

    Kubernetes Cluster Version

    Description

    YAML Example

    1.11 ≤ K8s version < 1.13

    Clusters from v1.11 to v1.13

    Example YAML

    K8s version = 1.9

    Clusters of v1.9

    Example YAML

    Clusters from v1.11 to v1.13

    • Example YAML file for the PV:
      apiVersion: v1 
      kind: PersistentVolume 
      metadata: 
        name: pv-sfs-example 
        annotations:
          pv.kubernetes.io/provisioned-by: flexvolume-huawei.com/fuxinfs
      spec: 
        accessModes: 
        - ReadWriteMany 
        capacity: 
          storage: 10Gi 
        claimRef:
          apiVersion: v1
          kind: PersistentVolumeClaim
          name: pvc-sfs-example
          namespace: default
        flexVolume: 
          driver: huawei.com/fuxinfs 
          fsType: nfs 
          options: 
            deviceMountPath: <your_deviceMountPath>  # Shared storage path of your file.
            fsType: nfs 
            volumeID: f6976f9e-2493-419b-97ca-d7816008d91c 
        persistentVolumeReclaimPolicy: Delete 
        storageClassName: nfs-rw
      Table 1 Key parameters

      Parameter

      Description

      driver

      Storage driver used to mount the volume. Set the driver to huawei.com/fuxinfs for the file system.

      deviceMountPath

      Shared path of the file system.

      On the management console, choose Service List > Storage > Scalable File Service. You can obtain the shared path of the file system from the Mount Address column, as shown in Figure 1.

      volumeID

      File system ID.

      To obtain the ID, log in to the CCE console, choose Resource Management > Storage, click the PVC name in the SFS tab page, and copy the PVC ID on the PVC details page.

      storage

      File system size.

      storageClassName

      Read/write mode supported by the file system. Currently, nfs-rw and nfs-ro are supported.

      spec.claimRef.apiVersion

      The value is fixed at v1.

      spec.claimRef.kind

      The value is fixed at PersistentVolumeClaim.

      spec.claimRef.name

      The value is the same as the name of the PVC created in the next step.

      spec.claimRef.namespace

      Namespace of the PVC. The value is the same as the namespace of the PVC created in the next step.

    • Example YAML file for the PVC:
      apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        annotations:
          volume.beta.kubernetes.io/storage-class: nfs-rw
          volume.beta.kubernetes.io/storage-provisioner: flexvolume-huawei.com/fuxinfs
        name: pvc-sfs-example
        namespace: default
      spec:
        accessModes:
        - ReadWriteMany
        resources:
          requests:
            storage: 10Gi
        volumeName: pv-sfs-example
      Table 2 Key parameters

      Parameter

      Description

      volume.beta.kubernetes.io/storage-class

      Read/write mode supported by the file system. nfs-rw and nfs-ro are supported. The value must be the same as that of the existing PV.

      volume.beta.kubernetes.io/storage-provisioner

      Must be set to flexvolume-huawei.com/fuxinfs.

      storage

      Storage capacity, in the unit of Gi. The value must be the same as the storage size of the existing PV.

      volumeName

      Name of the PV.

    Clusters of v1.9

    • Example YAML file for the PV:
      apiVersion: v1 
      kind: PersistentVolume 
      metadata: 
        name: pv-sfs-example 
        namespace: default 
      spec: 
        accessModes: 
        - ReadWriteMany 
        capacity: 
          storage: 10Gi 
        flexVolume: 
          driver: huawei.com/fuxinfs 
          fsType: nfs 
          options: 
            deviceMountPath: <your_deviceMountPath>  # Shared storage path of your file.
            fsType: nfs 
            kubernetes.io/namespace: default 
            volumeID: f6976f9e-2493-419b-97ca-d7816008d91c 
        persistentVolumeReclaimPolicy: Delete 
        storageClassName: nfs-rw
      Table 3 Key parameters

      Parameter

      Description

      driver

      Storage driver used to mount the volume. Set the driver to huawei.com/fuxinfs for the file system.

      deviceMountPath

      Shared path of the file system.

      On the management console, choose Service List > Storage > Scalable File Service. You can obtain the shared path of the file system from the Mount Address column, as shown in Figure 1.

      volumeID

      File system ID.

      To obtain the ID, log in to the CCE console, choose Resource Management > Storage, click the PVC name in the SFS tab page, and copy the PVC ID on the PVC details page.

      storage

      File system size.

      storageClassName

      Read/write mode supported by the file system. Currently, nfs-rw and nfs-ro are supported.

    • Example YAML file for the PVC:
      apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        annotations:
          volume.beta.kubernetes.io/storage-class: nfs-rw
          volume.beta.kubernetes.io/storage-provisioner: flexvolume-huawei.com/fuxinfs
        name: pvc-sfs-example
        namespace: default
      spec:
        accessModes:
        - ReadWriteMany
        resources:
          requests:
            storage: 10Gi
        volumeName: pv-sfs-example
        volumeNamespace: default
      Table 4 Key parameters

      Parameter

      Description

      volume.beta.kubernetes.io/storage-class

      Read/write mode supported by the file system. nfs-rw and nfs-ro are supported. The value must be the same as that of the existing PV.

      volume.beta.kubernetes.io/storage-provisioner

      The field must be set to flexvolume-huawei.com/fuxinfs.

      storage

      Storage capacity, in the unit of Gi. The value must be the same as the storage size of the existing PV.

      volumeName

      Name of the PV.

    Figure 1 SFS - file system mount address
    NOTE:

    The VPC to which the file system belongs must be the same as the VPC of the ECS VM to which the workload is planned.

  4. Create a PV.

    kubectl create -f pv-sfs-example.yaml

  5. Create a PVC.

    kubectl create -f pvc-sfs-example.yaml

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