Cut’n’paste from http://www.productionmonkeys.net/guides/qmail-server/daemontools
CentOS 7 uses systemd
Create a new file /etc/systemd/system/daemontools.service, with the startup code in it:
[Unit]
Description=daemontools Start supervise
After=getty.target
[Service]
Type=simple
User=root
Group=root
Restart=always
ExecStart=/command/svscanboot /dev/ttyS0
TimeoutSec=0
[Install]
WantedBy=multi-user.targetStart the service:
systemctl start daemontools.serviceTest that it is running:
systemctl status daemontools.serviceEnable it to start at boot:
systemctl enable daemontools.service