CSV file format: First name, last name, email address. Gitlab assumes the username will be the email address and the first part of the email address.
Example: John,Doe,jdoe@domain.tld Jane,Doe,jdoe2@domain.tld Kevin,Smith,ksmith@domain.tld
Call from command line:
ruby import.rb
Example:
?> ruby import.rb admin mypassword https://gitlab.domain.tld import.csv
All users are assigned the password gitlabuser.