installnodeexp.sh

#!/bin/bash

red=$(tput setaf 1)
cyan=$(tput setaf 6)
green=$(tput setaf 2)
reset=$(tput sgr0)

NODE_VER="1.3.1"
NODE_DL_URL="https://github.com/prometheus/node_exporter/releases/download/v${NODE_VER}/node_exporter-${NODE_VER}.linux-amd64.tar.gz"
SERVICE="/etc/systemd/system/node_exporter.service"

sudo apt update && sudo apt install git nano wget curl -y
echo "Downloading ${cyan}${NODE_DL_URL}${reset}"
wget -q $NODE_DL_URL
tar xvf node_exporter-${NODE_VER}.linux-amd64.tar.gz
sudo cp node_exporter-${NODE_VER}.linux-amd64/node_exporter /usr/local/bin
rm -rf node_exporter-${NODE_VER}.linux-amd64.tar.gz
sudo useradd --no-create-home --shell /bin/false node_exporter
sudo chown node_exporter:node_exporter /usr/local/bin/node_exporter
sudo tee $SERVICE << END
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

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

[Install]
WantedBy=multi-user.target
END

sudo systemctl daemon-reload
sudo systemctl start node_exporter
sudo systemctl enable node_exporter
sudo systemctl status node_exporter

echo "${green}Installation complete!${reset}"