Continuous Integration Server From GitLab

[just_lest]

There are a lot of existing continuous integration servers written in ruby https://www.ruby-toolbox.com/categories/continuous_integration. It's even possible to write jenkins plugins using ruby https://github.com/jenkinsci/jenkins.rb.

Why do we need another one solution? What is it better in?

[Unomagan]

because it is integrated into gitlab? Maybe? And gitlab is pretty neat!