14.8. Prometheus node-exporter¶
14.8.1. Create a system user¶
# useradd --system --no-create-home --shell /bin/false node_exporter
14.8.2. Download Prometheus node-exporter¶
Download
Extract
Copy to /usr/local/bin
Set ownership and permissions
# cd /tmp
# wget https://github.com/prometheus/node_exporter/releases/download/v1.8.1/node_exporter-1.8.1.linux-amd64.tar.gz
# mv node_exporter-1.8.1.linux-amd64.tar.gz node_exporter.tar.gz
# tar -xzvf node_exporter.tar.gz
# cp node_exporter/node_exporter /usr/local/bin
# chown node_exporter:node_exporter /usr/local/bin/node_exporter
14.8.3. Modify Prometheus configuration file¶
# Path: /etc/prometheus/prometheus.yml
- job_name: 'node_exporter_metrics'
scrape_interval: 5s
static_configs:
- targets: ['localhost:9100']
14.8.4. Systemd node-exporter service file¶
# Path: /etc/systemd/system/node-exporter.service
[Unit]
Description=Node Exporter
After=network.target
[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter
[Install]
WantedBy=multi-user.target
14.8.4.1. Refresh systemd and restart Prometheus¶
# systemctl daemon-reload
# systemctl enable --now node_exporter
# systemctl status node_exporter
# systemctl restart prometheus
14.8.4.2. Check¶
14.8.5. Grafana control panel (GUI)¶
You can now go to the Grafana dashboards and easily add a new dashboard for the Node Exporter program. Please make sure you choose the right Prometheus data source.
Dashboard Id: 1860
Dashboard URL: https://grafana.com/grafana/dashboards/1860-node-exporter-full/