Software defined datacenter depends on a control plane to do things below the "customer" level, such as migrate virtual machines and create virtual overlay netw

Software defined datacenter depends on a control plane to do things below the "customer" level, such as migrate virtual machines and create virtual overlay networks. At the scale of a Google datacenter, this could reasonably be multiple entire clusters. If there was an analog to a standard kubernetes cluster, I imagine it would be the equivalent of the kube controller manager. For vmware guys, it would be similar to DRS killing all the vcenter VMs in all datacenters, and then on top of that having a few entire datacenters get rerouted to the remaining ones, which have the same issue.