I spent several days to install openstack on debian 8 at one testing box with two NICs.
Finally got a basic working system!
It has with a controller node running neutron, glance and horizon, a compute node using KVM.
To get much speed, one KVM VM is created as a controller node on that box, at the same time using that box as a compute node ( notes, not a VM as compute node).
So some tricky bridge configures are needed here for this config.
Also another host configured as cinder-volume.