📡 Adding `lg.extensionerp.com` to Grafana Monitoring

This guide explains how to add the server lg.extensionerp.com (IP: 64.227.167.240) to Grafana monitoring using Prometheus and Node Exporter.

✅ Step 1: Install Node Exporter on `lg.extensionerp.com`

SSH into the server:

ssh root@lg.extensionerp.com

Install Node Exporter:

# Create a user for Node Exporter
sudo useradd -rs /bin/false node_exporter

# Download Node Exporter
cd /tmp
curl -LO https://github.com/prometheus/node_exporter/releases/download/v1.8.1/node_exporter-1.8.1.linux-amd64.tar.gz
tar xvf node_exporter-1.8.1.linux-amd64.tar.gz
sudo cp node_exporter-1.8.1.linux-amd64/node_exporter /usr/local/bin/

Create the systemd service:

sudo tee /etc/systemd/system/node_exporter.service &gt; /dev/null &lt;&lt;EOF
[Unit]
Description=Node Exporter
After=network.target

[Service]
User=node_exporter
ExecStart=/usr/local/bin/node_exporter

[Install]
WantedBy=default.target
EOF

Enable and start the service:

sudo systemctl daemon-reexec
sudo systemctl enable --now node_exporter

Optional: Open firewall port

sudo ufw allow 9100/tcp

✅ Step 2: Add the Target to Prometheus

SSH into the Grafana/Prometheus server:

ssh root@grafana.extensionerp.com

Edit the Prometheus config:

sudo nano /etc/prometheus/prometheus.yml

Locate the node_exporter_metrics job, then add the new IP:

  - job_name: "node_exporter_metrics"
    scrape_interval: 5s
    static_configs:
      - targets: [
          "159.65.151.17:9100",
          "165.232.187.162:9100",
          "143.110.183.164:9100",
          "68.183.87.11:9100",
          "134.209.158.220:9100",
          "143.244.130.7:9100",
          "64.227.167.240:9100"  # ← New lg server added here
        ]

Save and exit (Ctrl + O, Enter, then Ctrl + X).

Restart Prometheus:

sudo systemctl restart prometheus

✅ Step 3: Verify Prometheus Target

Open the Prometheus Targets UI:

http://grafana.extensionerp.com:9090/targets

Ensure that 64.227.167.240:9100 appears with status UP.

✅ Step 4: Import Node Exporter Dashboard into Grafana

Open: https://grafana.extensionerp.com
Go to + > Import
Enter Dashboard ID: 1860
Click Load
Select the Prometheus data source
Click Import

You’ll now see real-time system metrics (CPU, RAM, disk, etc.) for lg.extensionerp.com.

✅ Optional Enhancements

Configure alerts (e.g., high CPU, low disk space)
Add monitoring for MySQL, Docker, or NGINX
Use domain lg.extensionerp.com instead of IP in Prometheus config
Group servers using labels for cleaner dashboards

Addon Server to Grafana