Container Compute Service:Mount a statically provisioned OSS volume

Connect to your ACS cluster. For more information, see Obtain the kubeconfig file of a cluster and use kubectl to connect to the cluster and Use kubectl on Cloud Shell to manage ACS clusters.

Create a file named oss-pv.yaml and copy the following content to the file:

apiVersion: v1
kind: Secret
metadata:
  name: oss-secret
  namespace: default
stringData:
  akId: <your AccessKey ID>
  akSecret: <your AccessKey Secret>
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: oss-pv
  labels:
    alicloud-pvname: oss-pv
spec:
  storageClassName: test 
  capacity:
    storage: 20Gi
  accessModes:
    - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  csi:
    driver: ossplugin.csi.alibabacloud.com
    volumeHandle: oss-pv
    nodePublishSecretRef:
      name: oss-secret
      namespace: default
    volumeAttributes:
      bucket: "<your OSS Bucket Name>"
      url: "<your OSS Bucket Endpoint>"
      otherOpts: "-o max_stat_cache_size=0 -o allow_other"

The following table describes the parameters in the PV.

Create a Secret and a PV.

kubectl create -f oss-pv.yaml

Check the PV.

kubectl get pv

Expected output:

NAME     CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   VOLUMEATTRIBUTESCLASS   REASON   AGE
oss-pv   20Gi       RWX            Retain           Available           test           <unset>                          9s

Create a file named oss-pvc.yaml and copy the following content to the file:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: oss-pvc
spec:
  storageClassName: test
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 20Gi
  selector:
    matchLabels:
      alicloud-pvname: oss-pv

The following table describes the parameters in the preceding code block.

Create a PVC.

kubectl create -f oss-pvc.yaml

Check the PVC.

kubectl get pvc

The following output shows that the PV you created in Step 1 is bound to the PVC.

NAME      STATUS   VOLUME   CAPACITY   ACCESS MODES   STORAGECLASS   VOLUMEATTRIBUTESCLASS   AGE
oss-pvc   Bound    oss-pv   20Gi       RWX            test           <unset>                 6s

Create a file named oss-test.yaml and copy the following content to the file.

The following code block specifies the configuration of a Deployment that provisions two pods. Both pods apply for storage resources by using the oss-pvc PVC, which is mounted to the /data path of the pods.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: oss-test
  labels:
    app: nginx
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: registry.cn-hangzhou.aliyuncs.com/acs-sample/nginx:latest
        ports:
        - containerPort: 80
        volumeMounts:
          - name: pvc-oss
            mountPath: /data
      volumes:
        - name: pvc-oss
          persistentVolumeClaim:
            claimName: oss-pvc

Create a Deployment and mount the OSS volume to the Deployment.

kubectl create -f oss-test.yaml

Check the status of the pods created by the Deployment.

kubectl get pod | grep oss-test

The following output shows that two pods are created.

oss-test-****-***a   1/1     Running   0          28s
oss-test-****-***b   1/1     Running   0          28s

View files in the mount path.

Run the following command to view files in the mount path. The data in the mount directory of the OSS bucket is expected to be returned. By default, no data is returned.

kubectl exec oss-test-****-***a -- ls /data

Log on to the ACS console.

On the Clusters, click the ID of the cluster to go to the cluster management page.

In the left-side navigation pane of the cluster management page, choose Volumes > Persistent Volumes.

On the Persistent Volumes page, click Create.

In the Create PV dialog box, configure the parameters and click Create.

After you create the PV, you can view the PV on the Persistent Volumes page. No PVC is mounted to the PV.

In the left-side navigation pane of the cluster management page, choose Volumes > Persistent Volume Claims.

On the Persistent Volume Claims page, click Create.

In the Create PVC dialog box, configure the parameters and click Create.

After you create the PVC, you can view the PVC on the Persistent Volume Claims page. The OSS volume you created is bound to the PVC.

In the left-side navigation pane of the cluster management page, choose Workloads > Deployments.

On the Deployments tab, click Create from Image.

Configure the parameters of the Deployment and click Create.

The following table describes some of the parameters. Use the default values for other parameters. For more information, see Create a stateless application by using a Deployment.

Check whether the application is deployed.

1. On the Deployments page, click the name of the application you created.

2. On the Pods tab, check whether the pods are in the Running state.