Prometheus Alert Rule Builder

How to use

1. Pick a group name aligned with your service or team.
2. Write a PromQL expression that captures the failure or SLO breach.
3. Set a duration to avoid noisy, short-lived spikes.
4. Add labels like severity, team, and service for routing.
5. Add annotations for human-readable context and runbooks.
6. Copy the YAML into your Prometheus rule files and reload.

Production tips

• Use error rate or saturation signals instead of raw errors.
• Include service and environment labels for routing.
• Set different severities for warning vs. critical.
• Link annotations to dashboards and runbooks.
• Validate queries in Prometheus before enabling alerts.

Example alert workflow

Save the generated YAML into a rule file (e.g., alerts.yaml), add it to your Prometheus config under rule_files, and reload Prometheus. Configure Alertmanager routes to map severity or team labels to notification channels.