Please use our documentation for more information: First use of GitLab-server
If you have a FU/ZEDAT account enabled for the Physics computers, then you should be able to use directly the GitLab service. If there are any problems, please send a mail to firstname.lastname@example.org with details about your problem.
If you need an external account for cooperations of external persons with members of the department, please send a mail to email@example.com with name and e-mail of the external person and the reason, why the account is needed. If the account is only temporary, please include the exploration date.