Node management

August 2, 2023 · View on GitHub

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.