Install Node Exporter

node-exporter.sh

#!/usr/bin/env

curl -SL https://github.com/prometheus/node_exporter/releases/download/v1.2.2/node_exporter-1.2.2.linux-armv7.tar.gz >/tmp/node_exporter.tar.gz &&
    sudo tar -xvf /tmp/node_exporter.tar.gz -C /usr/local/bin/ --strip-components=1

echo '[Unit]
Description=NodeExporter

[Service]
TimeoutStartSec=0
ExecStart=/usr/local/bin/node_exporter

[Install]
WantedBy=multi-user.target' | sudo tee '/etc/systemd/system/node-exporter.service'

sudo systemctl daemon-reload &&
    sudo systemctl enable node-exporter &&
    sudo systemctl start node-exporter