Prometheus Monitoring Stack

Prometheus is a time-series metrics database and monitoring system. The Prometheus stack includes: Prometheus Server (scrapes and stores metrics), Exporters (expose application/system metrics), Grafana (visualization), and AlertManager (triggers alerts based on rules). Unlike traditional monitoring (push-based, with agents sending data), Prometheus pulls metrics from targets using HTTP. This makes it lightweight, flexible, and perfect for dynamic environments like Kubernetes where services come and go.