[Unit]
Description=gearman job control server
After=зависимость.service

[Service]
PermissionsStartOnly=true
User=www-data
PIDFile=/run/script.pid
ExecStart=/path/to/script
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure

[Install]
WantedBy=multi-user.target