Installing Node Exporter on Remote Servers

create folder for exporter apps

sudo mkdir /usr/local/bin/metrics
sudo mkdir /etc/metrics
sudo useradd -rs /bin/false exporter
sudo chmod -R 777 /usr/local/bin/metrics
sudo chmod -R 777 /etc/metrics
sudo chown -R exporter:exporter /usr/local/bin/metrics
sudo chown -R exporter:exporter /etc/metrics

Install node_exporter

curl -O -L https://github.com/prometheus/node_exporter/releases/download/v1.2.2/node_exporter-1.2.2.linux-amd64.tar.gz
tar xzvf node_exporter-*.*-amd64.tar.gz
sudo mv node_exporter-*.*-amd64 /usr/local/bin/node_exporter

create service

sudo vim /etc/systemd/system/node_exporter.service

[Unit]
Description=Node exporter for Prometheus
After=network.target

[Service]
User=exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter/node_exporter

[Install]
WantedBy=multi-user.target

start and enable service

sudo systemctl start node_exporter.service
sudo systemctl status node_exporter.service
sudo systemctl enable node_exporter.service

open firewall on server

sudo ufw allow from $PROMETHEUS_SERVER proto tcp to any port 9100