Hands-On Software Engineering with Golang

Handling alert events

Prometheus will periodically evaluate the configured set of alert rules and emit alert events when the preconditions for a rule are met. By design, the Prometheus server is only responsible for emitting alert events; it does not include any logic whatsoever for processing alerts.

The actual processing of emitted alert events is handled by the Alertmanager component. The Alertmanager ingests the alert events emitted by Prometheus and is responsible for grouping, deduplicating, and routing each alert to the appropriate notification integrations (referred to as receivers in Alertmanager terminology).

We will begin our brief tour of the Alertmanager component by elaborating on how operators can use its built-in grouping ...