Secure Jenkins X on kubernetes I have installed Jenkins X on kubernetes. I want to change the default installation and secure the Jenkins url, so that it will be not accessible to the public. 

Can I change it to some port, or some way to have a firewall for only few IPs allow to access the Jenkins URL.
In my experience, the easiest way to do this is to put Jenkins behind an SSL-terminating proxy, such as Apache or Nginx.  You can also configure SSL within Jenkins itself, but I've found that using a proxy is usually a lot easier to set up and manage with regards to SSL.