Mount a cloud disk as a static volume by using a YAML template

Create a static PV and a PVC

After you create a cloud disk in the Elastic Compute Service (ECS) console, record the disk ID. The ID of the cloud disk that is used in this topic is d-wz92s6d95go6ki9xge6b.

You can only use a YAML template to create a CSI persistent volume (PV) object in the ACK console.

1. Use kubectl to connect to an ACK cluster.
2. Use the following template to create a static PV and a persistent volume claim (PVC):

   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: csi-pvc
   spec:
     accessModes:
     - ReadWriteOnce
     resources:
       requests:
         storage: 25Gi
     selector:
       matchLabels:
         alicloud-pvname: static-disk-pv
   ---
   apiVersion: v1
   kind: PersistentVolume
   metadata:
     name: csi-pv
     labels:
       alicloud-pvname: static-disk-pv
   spec:
     capacity:
       storage: 25Gi
     accessModes:
       - ReadWriteOnce
     persistentVolumeReclaimPolicy: Retain
     csi:
       driver: diskplugin.csi.alibabacloud.com
       volumeHandle: d-wz92s6d95go6ki9xge6b
     nodeAffinity:
       required:
         nodeSelectorTerms:
         - matchExpressions:
           - key: topology.diskplugin.csi.alibabacloud.com/zone
             operator: In
             values:
             - cn-shenzhen-a

   Note

   • driver: the type of the driver.

     This parameter is set to diskplugin.csi.alibabacloud.com. The value indicates that the Alibaba Cloud CSI plug-in is used.

   • volumeHandle: the ID of the cloud disk.
   • nodeAffinity: the zone to which the PV and PVC belong.

     You can set this parameter to specify the zone to which the pod of the PV and PVC are scheduled.

Create an application

1. Create the nginx-disk-dept.yaml file and copy the following content to the file:

   apiVersion: v1
   kind: Service
   metadata:
     name: nginx
     labels:
       app: nginx
   spec:
     ports:
     - port: 80
       name: web
     clusterIP: None
     selector:
       app: nginx
   ---
   apiVersion: apps/v1
   kind: StatefulSet
   metadata:
     name: web
   spec:
     selector:
       matchLabels:
         app: nginx
     serviceName: "nginx"
     template:
       metadata:
         labels:
           app: nginx
       spec:
         containers:
         - name: nginx
           image: nginx
           ports:
           - containerPort: 80
             name: web
           volumeMounts:
           - name: pvc-disk
             mountPath: /data
         volumes:
           - name: pvc-disk
             persistentVolumeClaim:
               claimName: csi-pvc

2. Run the following command to create an application:

   kubectl apply -f nginx-disk-dept.yaml

You can also mount a cloud disk as a static volume in the ACK console. For more information, see Use a disk in the ACK console.