#!/bin/bash

cd /tmp
#wget -c http://10.5.20.30/download/tools/node_exporter-1.3.0.linux-amd64.tar.gz
curl -o node_exporter-1.3.0.linux-amd64.tar.gz http://10.5.20.30:8081/tools/node_exporter-1.3.0.linux-amd64.tar.gz
[ -d /data ] || mkdir /data
tar xf node_exporter-1.3.0.linux-amd64.tar.gz -C /data/
cd /data
ln -s node_exporter-1.3.0.linux-amd64 node_exporter
useradd prometheus
chown -R prometheus:prometheus /data/node_exporter/*
cat > /usr/lib/systemd/system/node_exporter.service <<EOF
[Unit]
Description=node_exporter
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/data/node_exporter/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl start node_exporter.service
systemctl status node_exporter.service
systemctl enable node_exporter.service

rm -f /tmp/node_exporter-1.3.0.linux-amd64.tar.gz >/dev/null 2>&1