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# Grafana + Prometheus
Metrics visualization dashboard with Prometheus as the data source.
## Setup
1. Edit `prometheus.yml` to add your scrape targets.
2. Start:
```
docker compose up -d
```
## Access
- Grafana: `http://<host>:3000`
- Default login: `admin` / `admin` (change on first login)
## What to Configure
- **`prometheus.yml`** — Add your scrape targets (node_exporter, nginx_exporter, etc.) before starting. The file currently contains example targets.
- **Grafana** — On first login, add Prometheus as a data source at `http://prometheus:9090`.
- **Data persistence** — Both `prometheus_data` and `grafana_data` are Docker volumes. They persist across restarts and stack upgrades.
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