PostgreSQL Observability Pipeline with Prometheus, Grafana, and Alloy

A production-grade PostgreSQL observability reference architecture covering metrics collection, log aggregation, storage, alerting, and visualization using an open-source stack. This PDF explains how PostgreSQL, postgres_exporter, Prometheus, Grafana Alloy, Loki, and Grafana work together to monitor database health, detect performance issues, track replication lag, analyze logs, and build actionable dashboards and alerts.