PostgreSQL observability stack using Prometheus, Grafana, Loki, Alertmanager, Grafana Alloy, and exporters

PostgreSQL Full Monitoring Stack — Complete Setup Guide is a practical, hands-on guide for DBAs, DBREs, SREs, and platform engineers who want to build a complete PostgreSQL observability stack using Prometheus, Grafana, Loki, Alertmanager, Grafana Alloy, and exporters. This ebook walks through a real lab setup for PostgreSQL 16 on AlmaLinux 9, running on libvirt/KVM with Vagrant. It covers end-to-end monitoring architecture, metrics collection, log shipping, alerting, dashboard provisioning, and troubleshooting. The stack includes node_exporter, postgres_exporter, pgbackrest_exporter, Prometheus, Grafana, Loki, Alertmanager, and Grafana Alloy. Readers will learn how to monitor PostgreSQL health, OS metrics, backup status, logs, alert rules, and service availability from a centralized Grafana dashboard. The guide also includes real configuration files, Docker Compose setup, Prometheus scrape targets, Loki log queries, Alertmanager routing, verification commands, and common troubleshooting scenarios. This ebook is ideal for anyone who wants to move beyond basic database monitoring and build a production-style PostgreSQL observability pipeline with metrics, logs, alerts, and backup monitoring in one complete stack