[Openstack-operators] best practice to manage multiple Data center using openstack

Hi: does anyone can tell me what are the best way or manage multiple DC using one openstack system? or the good reasons for it? We have sevel openstack env(multiple region), but its really difficult to manage them, python code, software update. etc. Thanks a lot! Jeff __

[Openstack-operators] how to manage multiple openstack regions(Juno)

We have large scale physical servers to manage depend on our services, and built multiple openstack env.(regions), does any one how to manage these individual openstacks in one operation portal?We developed our own UI for it(not horizon). Thanks a lot! Jeff _