title: Passing Parameters to Jenkins Through Gitlab Merge Request
body: <p><strong>My goal</strong>: Run Python tests any time a merge request is made in Gitlab. </p>
  
  <p><strong>The problem</strong>: The entire regression takes too long, so I'd like to run a particular subset of tests based on some level on configuration. This requires me somehow passing "arguments" through Gitlab to Jenkins with each merge request. Say in the comment put "test/api" or something similar?</p>
  
  <p>My only thought so far is to perhaps have a file that gets pushed with the commit that Jenkins can look at when it runs its jobs. This is one way to do it, but I feel like there has to be a better way and my searching hasn't yielded any results. </p>