Differences

This shows you the differences between two versions of the page.

--- operations:monitoring [2026/02/07 00:47] – external edit 127.0.0.1
+++ operations:monitoring [2026/02/07 10:39] (current) – Removed - consolidated admin
@@ Line 1: / Line 1: @@
-====== Monitoring Setup ======
-How to add hosts to monitoring.
-===== Stack =====
-^ Component ^ Purpose ^
-| [[services:prometheus|Prometheus]] | Metrics collection |
-| [[services:prometheus|Grafana]] | Visualization |
-| node_exporter | Host metrics (CPU, RAM, Disk, Network) |
-| [[services:uptime-kuma|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 ====
-<code bash>
-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
-</code>
-==== 2. Add to Prometheus ====
-Edit /etc/prometheus/prometheus.yml on CT 115:
-<code yaml>
-  - job_name: "node"
-    static_configs:
-      - targets:
-        - "NEW_HOST_IP:9100"  # new host
-</code>
-Reload: ''kill -HUP $(pgrep prometheus)''
-===== Troubleshooting =====
-<code bash>
-# 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}'
-</code>
-===== Related =====
-  * [[services:prometheus|Prometheus + Grafana]] - Monitoring stack
-  * [[services:uptime-kuma|Uptime Kuma]] - Status page