gitlab-org--gitlab-foss/doc/raketasks/user_management.md

Add user as a developer to all projects

bundle exec rake gitlab:import:user_to_projects[username@domain.tld]

Add all users to all projects

Notes:

• admin users are added as masters

bundle exec rake gitlab:import:all_users_to_all_projects

Add user as a developer to all groups

bundle exec rake gitlab:import:user_to_groups[username@domain.tld]

Add all users to all groups

Notes:

• admin users are added as owners so they can add additional users to the group

bundle exec rake gitlab:import:all_users_to_all_groups