Install Node Exporter as a systemd service

install_node_exporter.sh

#!/bin/bash
# Install Node Exporter as a systemd service
VERSION="1.10.2"
ARCH="linux-amd64"

# Download, extract, and install
wget https://github.com/prometheus/node_exporter/releases/download/v${VERSION}/node_exporter-${VERSION}.${ARCH}.tar.gz
tar xzf node_exporter-${VERSION}.${ARCH}.tar.gz
mv node_exporter-${VERSION}.${ARCH}/node_exporter /usr/local/bin/
rm -rf node_exporter-${VERSION}.${ARCH}*

# Create dedicated user (security best practice)
useradd --no-create-home --shell /bin/false node_exporter
chown node_exporter:node_exporter /usr/local/bin/node_exporter

# Create systemd service
cat <<EOF > /etc/systemd/system/node_exporter.service
[Unit]
Description=Node Exporter
After=network.target

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

[Install]
WantedBy=multi-user.target
EOF

# Start and enable
systemctl daemon-reload
systemctl enable --now node_exporter

Node Exporter Installer

Installs Node Exporter as a systemd service on Debian/Ubuntu servers.

Usage

curl -s https://gist.githubusercontent.com/ricardoalcantara/0a54d91cbe801f49d6df432e1eda3cc5/raw/065589800bf6c5a9387a5007bb9f3dadf0495bca/install_node_exporter.sh | bash

What it does

• Downloads and installs Node Exporter v1.10.2
• Creates a dedicated node_exporter system user
• Registers and starts it as a systemd service
• Exposes metrics on port 9100

After install

Verify it's running:

systemctl status node_exporter