revert cluster def to master
revert cluster def to master

hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela,hopshadoop/karamel-chef,hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela,AlexHopsworks/karamel-chef_dela,hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela