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storage-driver (System Resource Add-On, Discarded)

Introduction

storage-driver functions as a standard Kubernetes FlexVolume plug-in to allow containers to use EVS, SFS, OBS, and SFS Turbo storage resources. By installing and upgrading storage-driver, you can quickly install and update cloud storage capabilities.

storage-driver is a system resource add-on. It is installed by default when a cluster of Kubernetes v1.13 or earlier is created.

Notes and Constraints

  • For clusters created in CCE, Kubernetes v1.15.11 is a transitional version in which the FlexVolume plug-in (storage-driver) is compatible with the CSI plug-in (everest <cce_10_0066>). Clusters of v1.17 and later versions do not support FlexVolume anymore. You need to use the everest add-on.

  • The FlexVolume plug-in will be maintained by Kubernetes developers, but new functionality will only be added to CSI. You are advised not to create storage that connects to the FlexVolume plug-in (storage-driver) in CCE anymore. Otherwise, the storage resources may not function normally.

  • This add-on can be installed only in clusters of v1.13 or earlier. By default, the everest <cce_10_0066> add-on is installed when clusters of v1.15 or later are created.

    Note

    In a cluster of v1.13 or earlier, when an upgrade or bug fix is available for storage functionalities, you only need to install or upgrade the storage-driver add-on. Upgrading the cluster or creating a cluster is not required.

Installing the Add-on

This add-on has been installed by default. If it is uninstalled due to some reasons, you can reinstall it by performing the following steps:

If storage-driver is not installed in a cluster, perform the following steps to install it:

  1. Log in to the CCE console, click the cluster name, and access the cluster console. Choose Add-ons in the navigation pane, locate storage-driver on the right, and click Install.
  2. Click Install to install the add-on. Note that the storage-driver has no configurable parameters and can be directly installed.