Juju is a Package Manager, service orchestration management tool developed by Canonical for development of Cloud Computing of your own. Juju was formerly known as Ensemble.
A thing of beauty - logical architecture of OpenStack
OpenStack cloud computing : architecture guide / John Rhoton with contributions from Jan de Clercq, Franz Novak
Ken Pepple - OpenStack Folsom Architecture
OpenStack has adopted a three-node design whereby a controller, compute, and network node make up its architecture #OpenStack
OpenStack helps #IaaS providers improve virtual networks; Core advantages of this platform for cloud.
OpenStack Cloud Software timeline, since its launch date in July 2010.