CSI external-health-monitor-controller

Status and Releases

Git Repository: https://github.com/kubernetes-csi/external-health-monitor

Status: Alpha

Supported Versions

Unsupported Versions

Description

The CSI external-health-monitor-controller is a sidecar container that is deployed together with the CSI controller driver, similar to how the CSI external-provisioner sidecar is deployed. It calls the CSI controller RPC ListVolumes or ControllerGetVolume to check the health condition of the CSI volumes and report events on PersistentVolumeClaim if the condition of a volume is abnormal.

The CSI external-health-monitor-controller also watches for node failure events. This component can be enabled by setting the enable-node-watcher flag to true. This will only have effects on local PVs now. When a node failure event is detected, an event will be reported on the PVC to indicate that pods using this PVC are on a failed node.

Usage

CSI drivers that support VOLUME_CONDITION and LIST_VOLUMES or VOLUME_CONDITION and GET_VOLUME controller capabilities should use this sidecar container.

For detailed information (binary parameters, RBAC rules, etc.), see https://github.com/kubernetes-csi/external-health-monitor/blob/master/README.md.

Deployment

The CSI external-health-monitor-controller is deployed as a controller. See https://github.com/kubernetes-csi/external-health-monitor/blob/master/README.md for more details.