Feature Description

In this release, two new alerts node-disk-running-Low-24hours and node-disk-running-Low-2hours are added to the kube-prometheus-node-alerting.rules rules group to notify the user when the node disk partition usage crosses the set thresholds.

Typically, the K8s performs a garbage collection when the disk usage is greater than 80%. In the new alerts, the node disk usage is set at a threshold of 75%. This way, the alerts are triggered before the K8s garbage collection.

This section describes the new alerts.

Alert

Description

node-disk-running-Low-24hours

The node disk partition is greater than 75%, and it will be greater than 80% in less than 24 hours.

node-disk-running-Low-2hours

The node disk partition is greater than 75%, and it will be greater than 80% in less than 2 hours.