add smartctl service

services/smartctl-exporter.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Prometheus Smartctl Exporter
+After=network.target
+
+[Service]
+User=root
+ExecStart=/opt/smartctl_exporter/smartctl_exporter
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target