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    Static Mounting of CFS-Turbo for TKE Serverless Clusters

    Terakhir diperbarui:2023-03-14 18:26:30
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      Use Cases

      You can mount a CFS Turbo storage for a TKE Serverless. The add-on is used to mount the Tencent Cloud CFS Turbo file system to a workload based on a private protocol. Currently, only static configuration is supported. For more information about CFS storage types, see Storage Types and Performance.

      Prerequisites

      A TKE Serverless of v1.14 or later has been created.

      Directions

      Creating a file system

      Create a CFS Turbo file system. For details, see Creating a File System and Mount Point.
      Note
      After the file system is created, you need to associate the cluster network (vpc-xx) with the CCN instance of the file system. You can check it in the information about file system mount target.

      Deploying a Node Plugin

      Step 1. Create a csidriver.yaml file

      Here is an example of a csidriver.yaml file:
      apiVersion: storage.k8s.io/v1
      kind: CSIDriver
      metadata:
        name: com.tencent.cloud.csi.cfsturbo
      spec:
        attachRequired: false
        podInfoOnMount: false

      Step 2. Create a CSI driver

      Run the following command to create a CSI driver:
      kubectl apply -f csidriver.yaml

      Creating a CFS Turbo volume

      Step 1. Create a CFS Turbo type PV based on the following template

      apiVersion: v1
      kind: PersistentVolume
      metadata:
        name: pv-cfsturbo
      spec:
        accessModes:
        - ReadWriteMany
        capacity:
          storage: 10Gi
        csi:
          driver: com.tencent.cloud.csi.cfsturbo
          volumeHandle: pv-cfsturbo
          volumeAttributes: 
            host: *.*.*.*
            fsid: ********
            # cfs turbo subPath
            path: /
        storageClassName: ""
      Parameters:
      metadata.name: The name of the created PV.
      spec.csi.volumeHandle: It must be consistent with the PV name.
      spec.csi.volumeAttributes.host: The IP address of the file system. You can check it in the file system mount target information.
      spec.csi.volumeAttributes.fsid: The fsid of the file system (not the file system ID). You can check it in the file system mount target information. It is the string between tcp0:/ and /cfs in the mount command, as shown in the following figure.
      
      spec.csi.volumeAttributes.path: The subdirectory of the file system. / is entered if it is left empty (to improve the mounting performance, / is located under the /cfs directory). If you want to specify a subdirectory for mounting, you must ensure that the subdirectory exists in /cfs in the file system. The workload cannot access the parent directory of the subdirectory after mounting. For example, for path: /test, you must ensure that the /cfs/test exists in the file system.

      Step 2. Create a PVC that is bound to the PV based on the following template

      apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        name: pvc-cfsturbo
      spec:
        storageClassName: ""
        volumeName: pv-cfsturbo
        accessModes:
        - ReadWriteMany
        resources:
          requests:
            storage: 10Gi
      Parameters:
      metadata.name: The name of the created PVC.
      spec.volumeName: It must be consistent with the name of the PV created in Step 1.

      Using a CFS Turbo volume

      Create a Pod that mounts the PVC based on the following template.
      apiVersion: v1
      kind: Pod
      metadata:
        name: nginx 
      spec:
        containers:
        - image: ccr.ccs.tencentyun.com/qcloud/nginx:1.9
          imagePullPolicy: Always
          name: nginx
          ports:
          - containerPort: 80
            protocol: TCP
          volumeMounts:
            - mountPath: /var/www
              name: data
        volumes:
        - name: data
          persistentVolumeClaim:
            claimName: pvc-cfsturbo
      
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