Prometheus + Grafana Stack

Prometheus + Grafana Stack

A complete metrics and alerting stack that works out of the box. Prometheus scrapes your services, Node Exporter feeds host metrics, Alertmanager handles notifications, and Grafana ships with starter dashboards pre-provisioned — no manual import required.

What's Included

• Prometheus — Metrics collection with pre-configured scrape targets for all stack services
• Grafana — Dashboards auto-provisioned from JSON files; Prometheus data source wired automatically
• Alertmanager — Pre-configured with a starter alerting rule for instance downtime; webhook receiver ready to wire up
• Node Exporter — Exposes full host hardware and OS metrics (CPU, memory, disk, network) to Prometheus

Starter Dashboards

• Node Exporter Full — Complete host system overview (CPU, load, memory, filesystem, network)
• Prometheus Stats — Prometheus internals: scrape durations, sample ingestion rate, storage size
• Alertmanager Overview — Active alerts and notification routing at a glance

What You Get

• docker-compose.yml — fully configured four-service stack with named volumes
• prometheus/prometheus.yml — annotated scrape config; add your own targets in seconds
• prometheus/rules/alerts.yml — starter alerting rules with comments
• alertmanager/alertmanager.yml — receiver config with email and webhook placeholders
• grafana/provisioning/ — datasource and dashboard provisioning configs
• grafana/dashboards/ — three pre-built dashboard JSON files
• .env.example with every variable documented
• README.md — setup guide, adding scrape targets, customizing alerts, and Grafana tips

Service URLs

Requirements

Docker Desktop or Docker Engine with the Compose plugin. 1 GB RAM minimum. Node Exporter mounts read-only host paths — works on Linux hosts; limited metrics on Docker Desktop for Mac/Windows.