npd
Introduction
node-problem-detector (npd for short) is an add-on that monitors abnormal events of cluster nodes and connects to a third-party monitoring platform. It is a daemon running on each node. It collects node issues from different daemons and reports them to the API server. The npd add-on can run as a DaemonSet or a daemon.
For more information, see node-problem-detector.
Permission Description
To monitor kernel logs, the npd add-on needs to read the host /dev/kmsg. Therefore, the privileged mode must be enabled. For details, see privileged.
In addition, CCE mitigates risks according to the least privilege principle. Only the following privileges are available for npd running:
- cap_dac_read_search: permission to access /run/log/journal.
- cap_sys_admin: permission to access /dev/kmsg.
Installing the Add-on
- Log in to the CCE console and access the cluster details page. Choose Add-ons in the navigation pane, locate npd on the right, and click Install.
- Click Install to directly install the add-on. Currently, the npd add-on has no configurable parameters.
Parent topic: Add-ons
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