prometheus-configuration

# Prometheus Configuration Complete guide to Prometheus setup, metric collection, scrape configuration, and recording rules. ## Purpose Configure Prometheus for comprehensive metric collection, alerting, and monitoring of infrastructure and applications. ## When to Use - Set up Prometheus monitoring - Configure metric scraping - Create recording rules - Design alert rules - Implement service discovery ## Detailed patterns and worked examples Detailed pattern documentation lives in `references/details.md`. Read that file when the navigation tier above is insufficient. ## Best Practices 1. **Use consistent naming** for metrics (prefix_name_unit) 2. **Set appropriate scrape intervals** (15-60s typical) 3. **Use recording rules** for expensive queries 4. **Implement high availability** (multiple Prometheus instances) 5. **Configure retention** based on storage capacity 6. **Use relabeling** for metric cleanup 7. **Monitor Prometheus itself** 8. **Implement federation** for large deployments 9. **Use Thanos/Cortex** for long-term storage 10. **Document custom metrics** ## Troubleshooting **Check scrape targets:** ```bash curl http://localhost:9090/api/v1/targets ``` **Check configuration:** ```bash curl http://localhost:9090/api/v1/status/config ``` **Test query:** ```bash curl 'http://localhost:9090/api/v1/query?query=up' ``` ## Related Skills - `grafana-dashboards` - For visualization - `slo-implementation` - For SLO monitoring - `distributed-tracing` - For request tracing