1. cat >> /usr/lib/systemd/system/node_exporter.service <<EOF
    2. [Unit]
    3. Description=node_exporter
    4. Documentation=https://prometheus.io/
    5. After=network.target
    7. [Service]
    8. Type=forKing
    9. User=root
    10. WorkingDirectory=/opt/node_exporter
    11. ExecStart=/opt/node_exporter/node_exporter
    12. Restart=always
    14. [Install]
    15. WantedBy=multi-user.target
    16. EOF