We provide free instruction how to configure Gitlab Application Id and Gitlab Secret
1. Go to https://gitlab.com/profile/applications link and login with your credentials
1.1 Enter your name in "Name" field.
1.2 Enter your "redirect uri": http://www.yoursite.com/module/MODULENAME/gitlab
"MODULENAME" - folder name with the module
1.3 Select "Scopes": api , read_user.
1.4 Click Save application button.
2 Copy the generated "Application ID"and "Secret"