Description of problem:
the LBaaS service should be preinstalled in the network nodes when installing neutron with staypuft.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. define a neutron installation
2. continue to service definition
3. network node has no load balancer service
network node has no load balancer service
load balancer service should be installed
load balancer is a very good thing to have unless we are running with only one VM.