Please add support for the promotion plugin in the DSL, since you can't use a configure block to make it work. This limitation seems due to the promotion plugin writing another configuration file besides the job which is explicitly created.

This is a link to the discussion: https://groups.google.com/forum/#!searchin/job-dsl-plugin/promotion/job-dsl-plugin/XYSd8-es24g/LKDBRfvNxrsJ