Puppet Pipelines is a new product by Puppet. In September of 2017, Puppet acquired Distelli so that they could build the new Puppet Pipelines program. This CI system is still heavily geared toward containers and applications, but work is being done to improve its feature set for Puppet as well. Puppet Pipelines can still be used for a Continuous Integration system for puppet code, but may undergo quite a few changes in the next year around Puppet code. For this chapter, we'll be using a very popular open source Continuous Integration system: Jenkins.