#gitlab-rails console production
Loading production environment (Rails 4.8.5.2)
irb(main):001:0> user = User.where(id: 1).first
=> #<User id: 1, email: "admin@example.com", ...
irb(main):002:0> user.password=123456
=> 123456
irb(main):003:0> user.password_confirmation=123456
=> 123456
irb(main):004:0> user.save!
=> true
irb(main):005:0> quit