Monitoring Documentation

Prometheus, Grafana and Node Exporter provide infrastructure visibility.

What Is Running

Service	Purpose
Prometheus	Collects and stores metrics.
Node Exporter	Exports host CPU, RAM, disk and network metrics.
Grafana	Displays dashboards and graphs.

Metrics Flow

Node Exporter exposes /metrics
  -> Prometheus scrapes every interval
  -> Prometheus stores time-series data
  -> Grafana queries Prometheus
  -> User sees dashboards

What To Monitor

CPU usage
RAM usage
Disk usage
Network throughput
Container uptime
Nginx request rate
Kubernetes node and pod health later

Useful URLs

http://5.39.37.7/grafana/
http://5.39.37.7/prometheus/

Commands

docker logs prometheus
docker logs grafana
docker logs node-exporter
curl http://127.0.0.1:9100/metrics
curl http://127.0.0.1:9090/prometheus/-/healthy