ALERTMANAGER

Prometheus alerts routing.

Definition

AlertManager uses a YAML config (route tree, receivers, inhibit rules, silences). HA cluster via gossip protocol (libgossip). Webhook integration for custom receivers. AlertManager v0.27 (2024). Inhibition rules allow masking redundant alerts (e.g., if a node is down, mask its pod alerts).

Origin

AlertManager initial release 2014 ; v0.5 GA 2016 ; v0.27 current.

Example in context

An SRE team routes critical alerts to PagerDuty (24/7) and warnings to Slack #ops via AlertManager.

Related terms

• Prometheus — alerts source.