install node_export via systemd

install_node_exporter.sh

#!/usr/bin/env bash


VER=0.18.1
PKG=node_exporter-$VER.linux-amd64

echo $PKG
echo https://github.com/prometheus/node_exporter/releases/download/v$VER/$PKG.tar.gz

useradd --no-create-home --shell /bin/false node_exporter || exit 1
wget https://github.com/prometheus/node_exporter/releases/download/v$VER/$PKG.tar.gz || exit 1

tar xvf $PKG.tar.gz

cp $PKG/node_exporter /usr/local/bin  || exit 1
chown node_exporter:node_exporter /usr/local/bin/node_exporter  || exit 1

rm -rf $PKG*
echo '[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 --collector.netstat.fields=(.*) --collector.vmstat.fields=(.*)  --collector.interrupts
[Install]
WantedBy=multi-user.target' > /etc/systemd/system/node_exporter.service || exit 1

systemctl daemon-reload || exit 1
systemctl start node_exporter || exit 1
systemctl enable node_exporter
systemctl status node_exporter