Alauda Container Platform

Creating an NFS Shared Storage Class

Based on the community NFS CSI (Container Storage Interface) storage driver, it provides the capability to access multiple NFS storage systems or accounts.

Unlike the traditional client-server model of NFS access, NFS shared storage utilizes the community NFS CSI (Container Storage Interface) storage plugin, which is more aligned with Kubernetes design principles and allows client access to multiple servers.

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Prerequisites

  • An NFS server must be configured, and its access methods must be obtained. Currently, the platform supports three NFS protocol versions: v3, v4.0, and v4.1. You can execute nfsstat -s on the server side to check the version information.

Deploying the NFS Shared Storage Plugin

  1. Enter Platform Management.

  2. In the left navigation bar, click Storage Management > Storage Classes.

  3. Click Create Storage Class.

  4. On the right side of NFS Shared Storage, click Deploy to navigate to the Plugins page.

  5. On the right side of the NFS plugin, click ⋮ > Deploy.

  6. Wait for the deployment status to indicate Deployment Successful before completing the deployment.

Creating an NFS Shared Storage Class

  1. Click Create Storage Class.

    Note: The following content is presented in a form, but you may also choose to complete the operation using YAML.

  2. Select NFS Shared Storage and click Next.

  3. Refer to the following instructions to configure the relevant parameters.

    ParameterDescription
    NameThe name of the storage class. It must be unique within the current cluster.
    Service AddressThe access address of the NFS server. For example: 192.168.2.11.
    PathThe mount path of the NFS file system on the server node. For example: /nfs/data.
    NFS Protocol VersionCurrently supports three versions: v3, v4.0, and v4.1.
    Reclaim PolicyThe reclaim policy for the persistent volume.
    - Delete: When the persistent volume claim is deleted, the bound persistent volume will also be deleted.
    - Retain: Even if the persistent volume claim is deleted, the bound persistent volume will still be retained.
    Access ModesAll access modes supported by the current storage. During the subsequent declaration of persistent volumes, only one of these modes can be selected for mounting persistent volumes.
    - ReadWriteOnce (RWO): Can be mounted as read-write by a single node.
    - ReadWriteMany (RWX): Can be mounted as read-write by multiple nodes.
    - ReadOnlyMany (ROX): Can be mounted as read-only by multiple nodes.
    Allocated ProjectsPlease allocate the projects that can use this type of storage.
    If there are currently no projects needing this type of storage, you may choose not to allocate any projects at this time and update them later.

  4. Once you have confirmed that the configuration information is correct, click Create.

Setting the naming rules for subdirectories in the NFS Shared Storage Class