Google OAuth requires you to fill in the Application ID and Secret of your GitLab OAuth app.
To enable GitLab OAuth on your workspace,
Go to .
Fill in the Application Name, redirect URI, and Scope. Click Save application.
After the application is created successfully, the OAuth credentials are displayed.
Copy the Application ID and Secret.
Navigate to OAuth settings (Administration > Workspace > Settings> OAuth) in your workspace.
In the GitLab tab, fill in the OAuth credentials you copied earlier and toggle on OAuth Enabled. Toggle on Merge Users based your preference.
Click Save Changes. A Sign in with GitLab button appears on your workspace's login page. Users can now sign in with GitLab by clicking that button.