add different roles for each component (api, scheduler, volume)
take password to database from cinder-api node for cinder-volume
reject admin node in UI for deploy components
Merge pull request #75 from arkadykanevsky/pull-req-release-mesa-1.6.1-master-18fcd6c9c554f878fe32ca7134a81eba27f13fbd

port of multinode cinder support from pebbles to mesa-1.6.1 [1/1]