node-management.md

Node management

Prerequisites

• Working DirectPV plugin. To install the plugin, refer to the plugin installation guide.
• Working DirectPV CSI driver in Kubernetes. To install the driver, refer to the driver installation guide.

Add node

After Adding a node into DirectPV DaemonSet, run DirectPV plugin discover command. Below is an example:

$ kubectl directpv discover

List node

Run DirectPV plugin info command to get list of nodes. Below is an example:

$ kubectl directpv info
┌──────────┬──────────┬───────────┬─────────┬────────┐
│ NODE     │ CAPACITY │ ALLOCATED │ VOLUMES │ DRIVES │
├──────────┼──────────┼───────────┼─────────┼────────┤
│ • master │ 512 MiB  │ 32 MiB    │ 2       │ 1      │
│ • node1  │ 512 MiB  │ 32 MiB    │ 2       │ 1      │
└──────────┴──────────┴───────────┴─────────┴────────┘

64 MiB/1.0 GiB used, 4 volumes, 2 drives

Refer to the info command for more information.

Delete node

CAUTION: THIS IS DANGEROUS OPERATION WHICH LEADS TO DATA LOSS

Before removing a node make sure no volumes or drives on the node are in use, then remove the node from DirectPV DaemonSet and run remove-node.sh script.