systemd: Create a service

Example of the service configuration file `selenium_hub.service`:

[Unit]
Description=Selenium hub

[Service]
Environment=DISPLAY=:99
ExecStart=/bin/bash -c 'java -jar /opt/selenium/selenium-server-standalone.jar -role hub'
User=root

[Install]
WantedBy=multi-user.target

Place this file to /etc/systemd/system/ (symlinking won't work) and refresh available services:

sudo systemctl daemon-reload

Now it is possible to start the service with command:

sudo service selenium_hub status

You can also make it start when a system starts by executing one of the following commands:

sudo chkconfig selenium_hub on
sudo systemctl enable selenium_hub.service