Comment 4 for bug 1724172

But, will the source provider get the same uuid? Or will re-deploying the compute generate a new compute node uuid and thus a new provider in placement? I guess the compute node looking up the RT is based on hostname so as long as the service/compute wasn't deleted before the re-deploy it should still exist and use the same uuid.

https://github.com/openstack/nova/blob/509a2cca241f61311579c5f53dafd15ad2a40a63/nova/compute/resource_tracker.py#L787