Prometheus Alerting Best Practices Cheat Sheet

Grouping, runbooks, and silences

Last Updated: November 21, 2025

Focus Areas

Focus
Group alerts and attach runbook URLs
Route by severity and team

Commands & Queries

promtool check rules rules.yml
Lint alert rules
amtool check routes routes.yml
Validate routes
alertmanager silence add --match severity=warning
Create silence

Summary

Document runbooks and silence noisy alerts proactively.

💡 Pro Tip: Document mitigation steps per alert and keep severity consistent.
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