Alert-Rule Check
Check
Grafana alert rules
Alert-Rule Check
Collects information about the alert-rule state and optionally verifies that the monitor has an expected state.Check
Grafana alert rules
Alert-Rule Check
Check
Grafana alert rules
Alert-Rule Check
Collects information about the alert-rule state and optionally verifies that the monitor has an expected state.Check
Grafana alert rules
Grafana alert rule fires when a Kubernetes pod is in crash loop
Verify that a Grafana alert rule alerts you when pods are not ready to accept traffic for a certain time.
Motivation
Kubernetes features a readiness probe to determine whether your pod is ready to accept traffic. If it isn't becoming ready, Kubernetes tries to solve it by restarting the underlying container and hoping to achieve its readiness eventually. If this isn't working, Kubernetes will eventually back off to restart the container, and the Kubernetes resource remains non-functional.
Structure
First, check that the Grafana alert rule responsible for tracking non-ready containers is in an 'okay' state. As soon as one of the containers is crash looping, caused by the crash loop attack, the Grafana alert rule should fire and escalate it to your on-call team.
Solution Sketch
- Kubernetes liveness, readiness, and startup probes
Grafana alert rules
Kubernetes cluster
Kubernetes pods