If you’ve ever carried an on-call pager for a production Kubernetes cluster, you know the dread of a 3:00 AM alert:

Your phone buzzes aggressively. The payment gateway is crashing with CrashLoopBackOff. Users are encountering 500 internal errors, and the business is losing thousands of dollars per minute.

You sit down half-asleep and start the manual diagnostic grind:

Open Prometheus and craft PromQL queries to check if the service is down (up == 0).

Sift through thousands of Loki log lines searching for JVM or Go panic stack traces.