| `default_snippet_visibility` | integer | no | What visibility level new snippets receive. Can take `0` _(Private)_, `1` _(Internal)_ and `2` _(Public)_ as a parameter. Default is `0`.|
| `domain_whitelist` | array of strings | no | Force people to use only corporate emails for sign-up. Default is null, meaning there is no restriction. |
| `domain_blacklist_enabled` | boolean | no | Enable/disable the `domain_blacklist` |
| `domain_blacklist` | array of strings | yes (if `domain_whitelist_enabled` is `true` | People trying to sign-up with emails from this domain will not be allowed to do so. |
| `domain_blacklist` | array of strings | yes (if `domain_blacklist_enabled` is `true`) | People trying to sign-up with emails from this domain will not be allowed to do so. |
| `user_oauth_applications` | boolean | no | Allow users to register any application to use GitLab as an OAuth provider |
| `after_sign_out_path` | string | no | Where to redirect users after logout |
| `container_registry_token_expire_delay` | integer | no | Container Registry token duration in minutes |
