title: Putting a wildcard/regex expression in node/label restriction in Jenkins
body: <p>In job configuration, there is a checkbox "Restrict where this project can be run". If you select it, there is an input field about Label Expression.
  Is there a way to insert of regex there, and not the exact name?
  If yes, could you provide an example of this?
  The whole concept behind this, is that I want to assign restrict jobs to slaves that are created automatically, with similar names</p>