The CSI driver for PowerFlex is a plug-in installed into Kubernetes to provide persistent storage using PowerFlex storage system. The CSI driver for PowerFlex and Kubernetes communicate using the CSI protocol. The CSI driver for PowerFlex supports dynamic and static provisioning of PV and snapshot capabilities. The Helm chart or an operator is available to install the CSI driver for Dell PowerFlex using a shell script. This script installs the CSI driver container image with its side car containers and takes care of automatically installing PowerFlex SDC on each worker node that is part of Kubernetes cluster.

The controller section of the Helm chart installs the following components in a single deployment in the namespace vxflexos: 

• CSI driver for Dell PowerFlex. 
• Kubernetes Provisioner, which provisions the volumes. 
• Kubernetes Attacher, which attaches the volumes to the containers. 
• Kubernetes Snapshotter, which provides snapshot support. 
• Kubernetes External Resizer, which resizes the volume. 
• Automatically installs the PowerFlex SDC on all Kubernetes worker nodes. 

The node section of the Helm chart installs the following components in a daemon set in the namespace vxflexos: 

• CSI driver for Dell PowerFlex. 
• Kubernetes Node Registrar, which handles the driver registration.