Architecture for a Workload Centric Cloud

This document outlines an architecture for a Workload Centric Cloud (WCC) built on top of an extended OpenStack cloud. A Workload Centric Cloud serves primarily to deploy, manage, update, and delete Virtual Resource Topologies (VRTs). The Workload Centric Cloud accepts requests at its level of abstraction and serves them by manipulating the infrastructure APIs (Software Defined Compute, Storage, and Networking) of an underlying OpenStack+ installation. By OpenStack+ we mean OpenStack as we plan to augment it; this includes, for example, better Software Defined Networking (SDN) functionality, and extensions to improve visibility into Software Defined Compute.