Manage storage components with storage-operator - Container Service for Kubernetes

The storage-operator component provides features such as auto scaling of volumes, online modification of disk configurations, and resource monitoring to improve the O&M efficiency of Alibaba Cloud storage resources in ACK clusters.

Prerequisites

The cluster is version 1.20 or later. To upgrade the cluster, see Manually upgrade a cluster.
The Container Storage Interface (CSI) plugin is installed.
You can view the installation status of the component on the Add-ons page.

Component introduction

By default, storage-operator is deployed in the cluster as a Deployment with the following features enabled.

Volume auto scaling: Automatically scales disk and NAS volumes.
To disable this feature, add the Feature Gate Expander=false.
Disk configuration modification: Modifies disk configurations.
To disable this feature, add the Feature Gate DiskVolumeUpgradeControl=false.
Stateful application migration: Migrates stateful applications across zones.
To disable this feature, add the Feature Gate ApplicationMigrationAcrossAZ=false.

Manage the storage-operator component

Check the component running status

Run the following command to check the status of the component pod and verify that storage-operator is running.

kubectl get pods -n kube-system -l app=storage-operator

Expected output:

NAME                                READY   STATUS    RESTARTS   AGE
storage-operator-57bdfd7f56-kl86k   1/1     Running   0          12m

Upgrade the component

Before you upgrade the component, review the storage-operator component release notes.

Log on to the ACK console. In the left navigation pane, click Clusters.
On the Clusters page, find the one you want to manage and click its name. In the left navigation pane, click Add-ons.
Locate storage-operator and follow the on-screen instructions to upgrade the component.