Static volumes

Procedure

1. Deploy the cpfs-plugin component.
   To mount CPFS volumes, you must first perform the following steps to deploy cpfs-plugin in your ACK cluster:

   apiVersion: storage.k8s.io/v1beta1
   kind: CSIDriver
   metadata:
     name: cpfsplugin.csi.alibabacloud.com
   spec:
     attachRequired: false
     podInfoOnMount: true
   ---
   # This YAML defines all API objects to create RBAC roles for csi node plugin.
   kind: DaemonSet
   apiVersion: apps/v1beta2
   metadata:
     name: csi-cpfsplugin
     namespace: kube-system
   spec:
     selector:
       matchLabels:
         app: csi-cpfsplugin
     template:
       metadata:
         labels:
           app: csi-cpfsplugin
       spec:
         tolerations:
         - operator: Exists
         priorityClassName: system-node-critical
         serviceAccount: admin
         hostNetwork: true
         hostPID: true
         containers:
         - name: driver-registrar
           image: registry.cn-hangzhou.aliyuncs.com/acs/csi-node-driver-registrar:v1.2.0
           imagePullPolicy: Always
           args:
           - "--v=5"
           - "--csi-address=/var/lib/kubelet/csi-plugins/cpfsplugin.csi.alibabacloud.com/csi.sock"
           - "--kubelet-registration-path=/var/lib/kubelet/csi-plugins/cpfsplugin.csi.alibabacloud.com/csi.sock"
           volumeMounts:
           - name: kubelet-dir
             mountPath: /var/lib/kubelet/
           - name: registration-dir
             mountPath: /registration
   
         - name: csi-cpfsplugin
           securityContext:
             privileged: true
             capabilities:
               add: ["SYS_ADMIN"]
             allowPrivilegeEscalation: true
           image: registry.cn-hangzhou.aliyuncs.com/acs/csi-cpfsplugin:v1.16.6-d539237c
           imagePullPolicy: "Always"
           args:
           - "--endpoint=$(CSI_ENDPOINT)"
           - "--v=5"
           - "--driver=cpfsplugin.csi.alibabacloud.com"
           env:
           - name: CSI_ENDPOINT
             value: unix://var/lib/kubelet/csi-plugins/cpfsplugin.csi.alibabacloud.com/csi.sock
           volumeMounts:
           - name: kubelet-dir
             mountPath: /var/lib/kubelet/
             mountPropagation: "Bidirectional"
           - mountPath: /var/log/
             name: host-log
           - name: etc
             mountPath: /host/etc
         volumes:
         - name: kubelet-dir
           hostPath:
             path: /var/lib/kubelet/
             type: Directory
         - name: registration-dir
           hostPath:
             path: /var/lib/kubelet/plugins_registry
             type: DirectoryOrCreate
         - name: host-log
           hostPath:
             path: /var/log/
         - name: etc
           hostPath:
             path: /etc
     updateStrategy:
       type: RollingUpdate

   Run the following command to check the state of cpfs-plugin:

   # kubectl get pod -nkube-system |grep cpfs
   csi-cpfsplugin-8t585                               2/2     Running   0          4h43m
   csi-cpfsplugin-9z5xj                               2/2     Running   0          4h43m
   csi-cpfsplugin-bdm22                               2/2     Running   0          4h43m
   csi-cpfsplugin-bjnlx                               2/2     Running   0          4h44m
   csi-cpfsplugin-nv7vg                               2/2     Running   0          4h43m
   csi-cpfsplugin-zc7z5                               2/2     Running   0          4h43m

2. Use a CPFS volume.
   1. Create a CPFS file system. For more information, see Create a file system.
      Obtain the mount target of the NAS file system. Log on to the NAS console, find the created Apsara File Storage NAS. The URL (file-system-id.region.nas.aliyuncs.com) in the Mount Command column is the mount target, as shown in the following figure.

      Note file-system-id.region.nas.aliyuncs.com is the address of the mount target. You can obtain the address of the mount target in the NAS console. Log on to the NAS console, click the name of the NAS file system. In the left-side navigation pane, click Mounting Usage. You can find the address of the mount target in the Mount Command column.
   2. Create a PV and a PVC.
      Use the following template to create a PV and a PVC for the CPFS file system:

      apiVersion: v1
      kind: PersistentVolume
      metadata:
        name: cpfs-csi-pv
        labels:
          alicloud-pvname: cpfs-pv
      spec:
        capacity:
          storage: 5Gi
        accessModes:
          - ReadWriteOnce
        persistentVolumeReclaimPolicy: Retain
        csi:
          driver: cpfsplugin.csi.alibabacloud.com
          volumeHandle: cpfs-csi-pv
          volumeAttributes:
            server: "xxxxxx@tcp:xxxxxx@tcp"
            fileSystem: "xxxxxx"
            subPath: "/k8s"
      ---
      kind: PersistentVolumeClaim
      apiVersion: v1
      metadata:
        name: cpfs-pvc
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 5Gi
        selector:
          matchLabels:
            alicloud-pvname: cpfs-pv

   3. Create a Deployment.
      Use the following template to create a Deployment that uses the preceding PVC:

      ---
      apiVersion: apps/v1
      kind: Deployment
      metadata:
        name: deployment-cpfs
        labels:
          app: nginx
      spec:
        selector:
          matchLabels:
            app: nginx
        template:
          metadata:
            labels:
              app: nginx
          spec:
            containers:
            - name: nginx
              image: nginx:1.7.9
              ports:
              - containerPort: 80
              volumeMounts:
                - name: cpfs-pvc
                  mountPath: "/data"
            volumes:
              - name: cpfs-pvc
                persistentVolumeClaim:
                  claimName: cpfs-pvc