Contrail

Contrail is a complete Cloud platform which integrates a full Infrastructure-as-a-Service and Platform-as-a-Service facilities.

Contrail will vertically integrate an open-source distributed
operating system for autonomous resource management in Infrastructure-as-a-Service environments, and high level services and runtime environments as foundations for Platform-as-a-Service. The main achievement will be a tightly integrated software stack in open source including a comprehensive set of system, runtime and high level services providing standardized interfaces for supporting cooperation
and resource sharing over Cloud federations.