This is the Exmaple of building Cloud Computing infrastracture by OpenStack Juno.
Please learn simply description about OpenStack below before building. 
(1) Main Components of OpenStack 
| Service | 
Code Name | 
Description | 
| Identity Service | 
Keystone | 
User Management | 
| Compute Service | 
Nova | 
Virtual Machine Management | 
| Image Service | 
Glance | 
Manages Virtual image like kernel image or disk image | 
| Dashboard | 
Horizon | 
Provides GUI console via Web browser | 
| Object Storage | 
Swift | 
Provides Cloud Storage | 
| Block Storage | 
Cinder | 
Storage Management for Virtual Machine | 
| Network Service | 
Neutron | 
Virtual Networking Management | 
| Orchestration Service | 
Heat | 
Provides Orchestration function for Virtual Machine | 
| Metering Service | 
Ceilometer | 
Provides the function of Usage measurement for accounting | 
| Database Service | 
Trove | 
Database resource Management | 
| Data Processing Service | 
Sahara | 
Provides Data Processing function |