operations:monitoring
This is an old revision of the document!
Table of Contents
Monitoring Setup
How to add hosts to monitoring.
Stack
| Component | Purpose |
|---|---|
| Prometheus | Metrics collection |
| Grafana | Visualization |
| node_exporter | Host metrics (CPU, RAM, Disk, Network) |
| Uptime Kuma | Status page + Alerts |
Current Hosts
All hosts run node_exporter on port 9100:
| Host | IP |
|---|---|
| hv-04 (Proxmox) | 10.100.160.100 |
| traefik (CT 102) | 10.100.161.102 |
| openclaw (CT 103) | 10.100.160.249 |
| postgres (CT 110) | 10.100.161.110 |
| n8n (CT 111) | 10.100.161.111 |
| vaultwarden (CT 112) | 10.100.161.112 |
| dokuwiki (CT 113) | 10.100.161.113 |
| uptime-kuma (CT 114) | 10.100.161.114 |
| monitoring (CT 115) | 10.100.161.115 |
Adding a New Host
1. Install node_exporter
cd /tmp wget https://github.com/prometheus/node_exporter/releases/download/v1.9.0/node_exporter-1.9.0.linux-amd64.tar.gz tar xzf node_exporter-*.tar.gz cp node_exporter-*/node_exporter /usr/local/bin/ cat > /etc/systemd/system/node_exporter.service << 'EOF' [Unit] Description=Node Exporter After=network.target [Service] Type=simple ExecStart=/usr/local/bin/node_exporter Restart=always [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable --now node_exporter
2. Add to Prometheus
Edit /etc/prometheus/prometheus.yml on CT 115:
- job_name: "node" static_configs: - targets: - "NEW_HOST_IP:9100" # new host
Reload: kill -HUP $(pgrep prometheus)
Troubleshooting
# Test node_exporter locally curl http://localhost:9100/metrics | head # Test from Prometheus server curl http://HOST_IP:9100/metrics | head # Check Prometheus targets curl http://10.100.161.115:9090/api/v1/targets | jq '.data.activeTargets[] | {instance, health}'
Related
- Prometheus + Grafana - Monitoring stack
- Uptime Kuma - Status page
operations/monitoring.1770425255.txt.gz ยท Last modified: by 127.0.0.1