Controller Server

The Lightbits CSI plugin’s Controller Server consists of a pod that includes the lb-csi-plugin container and several standard Kubernetes sidecar containers. A single Controller Server pod instance is deployed per Kubernetes cluster in a StatefulSet.

This pod communicates with the Kubernetes API Server and the Lightbits management API service on the Lightbits storage servers. It is responsible for PV lifecycle management, including:

• Creation and deletion of volumes on the Lightbits cluster.
• Making these volumes accessible to the Kubernetes cluster nodes that consume the storage on an as-needed basis.