Fixup updates in the agent backend
Fixup updates in the agent backend

Change-Id: I3901ecec3c73a22b641d11761fd134d03d222d36

ramsateesh/designate,muraliselva10/designate,ramsateesh/designate,muraliselva10/designate,kiall/designate-py3,cneill/designate,cneill/designate,tonyli71/designate,kiall/designate-py3,grahamhayes/designate,cneill/designate,cneill/designate,ionrock/designate,tonyli71/designate,kiall/designate-py3,grahamhayes/designate,ionrock/designate,cneill/designate-testing,cneill/designate-testing,kiall/designate-py3,cneill/designate-testing,kiall/designate-py3,muraliselva10/designate,openstack/designate,openstack/designate,ionrock/designate,openstack/designate,cneill/designate,tonyli71/designate,ramsateesh/designate,grahamhayes/designate