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KubeSphere Storage

This section describes how to use the "KubeSphere Storage" extension.

This extension includes multiple storage-related utilities:

snapshot-controller: Used to create snapshots for PVCs.
snapshotclass-controller: Used to count snapshots.
pvc-auto-resizer: Used to automatically expand PVCs when they are running out of capacity.
storageclass-accessor: Provides an admission controller to verify whether it is allowed to create PVCs in a specific namespace or workspace.

After installing the "KubeSphere Storage" extension,

The Storage menu in the left navigation pane of the cluster will display Volume Snapshots and Volume Snapshot Classes options, and Storage Classes will support Set Authorization Rules and Set Auto Expansion.
The Storage menu in the left navigation pane of the project will display the Volume Snapshots option.

Note
The auto-expansion feature of storage classes supports automatically expanding PVCs when they are running out of capacity. It only controls whether users are allowed to use the related operations in the KubeSphere web console. Whether the storage class actually supports these operations depends on the backend storage system. Setting auto-expansion requires connecting to the prometheus service. For more information, see the details page of the "KubeSphere Storage" extension in the Extensions Center.

Note

The auto-expansion feature of storage classes supports automatically expanding PVCs when they are running out of capacity. It only controls whether users are allowed to use the related operations in the KubeSphere web console. Whether the storage class actually supports these operations depends on the backend storage system.
Setting auto-expansion requires connecting to the prometheus service. For more information, see the details page of the "KubeSphere Storage" extension in the Extensions Center.