Prometheus: Custom Application Metrics

Expose /metrics endpoint for PHP, Python, or Node apps and ingest via Prometheus.

Expected time saved: 4 hours/week

Complexity: Intermediate

Steps:

1. 1 - Add metrics library
2. 2 - Expose /metrics
3. 3 - Configure scraper
4. 4 - Set alert rules

Tools:
Prometheus

Example

$registry->counter('requests_total')

Tags

prometheus metrics