[Morgangeek]

We manage, install and configure Jenkins as code, without clicking buttons. You can fully automate jenkins activity and setup, from install to job creation, execution, plugin updates, config changes validation etc. Of course only power users will fully use Jenkins power.

[heavenlyblue]

Jenkins isn’t really worth the hassle today in my opinion - there are a bunch of new build tools that solve the problem better without all the garbage that comes with it.

And they also look better.

For god’s sake, you could even use GitLab today. What does Jenkins give you? What is there to defend?

[Morgangeek]

For complex pipelines and code reuse (plugins, pipeline libraries, scripting) between projects, Jenkins offers more features for power users, and its maturity has been proven while GitLab CI still suffers from his young age. Other examples with the Cons at the end of this article : https://medium.com/sv-blog/migrating-from-jenkins-to-gitlab-... and https://stackoverflow.com/a/37430097/2309958 (and I can probably find a lot more :-) )