Rolling Back Huawei CSI on Kubernetes, OpenShift, and Tanzu

Prerequisites

CSI has been updated using Helm 3.

Procedure

Use a remote access tool, such as PuTTY, to log in to any master node in the Kubernetes cluster through the management IP address.
Go to the helm/esdk working directory. For the directory path, see Table 1.
```
cd helm/esdk
```

Run the following command to query the historical versions of the CSI services deployed using Helm.

helm history helm-huawei-csi -n huawei-csi

The following is an example of the command output.

REVISION        UPDATED                         STATUS          CHART           APP VERSION     DESCRIPTION     
1       	Mon Jan  8 04:15:40 2024	superseded	esdk-4.4.0	4.4.0      	Install complete
2       	Mon Jan  8 04:16:12 2024	deployed  	esdk-4.5.0	4.5.0      	Upgrade complete

Run the following command to roll back the CSI services to the specified version.
In the preceding command, revision-number indicates a version number queried in 3. For example, the version is 1.
```
helm rollback helm-huawei-csi -n huawei-csi 1
```
The following is an example of the command output. If Rollback was a success is displayed in the command output, the CSI services are successfully rolled back to the specified version.
```
Rollback was a success! Happy Helming!
```