Prometheus

---
name: prometheus
license: Apache-2.0
description: >
  Prometheus and Grafana Cloud Metrics overview including PromQL query language, Metrics Drilldown,
  alerting, recording rules, and integration patterns. Use when working with Prometheus, writing PromQL
  queries, configuring alerting, or discussing metrics architecture and best practices.
---

# Metrics with Prometheus and Grafana

> **Docs**: https://prometheus.io/docs/ | **Grafana Cloud Metrics**: https://grafana.com/docs/grafana-cloud/send-data/metrics/

## PromQL Quick Reference

### Instant Vector Selectors

```promql
# By metric name
http_requests_total

# Label filter
http_requests_total{job="api-server"}

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