Overlay Cloud Networking through Meta-Code

We propose a new structuring mechanism and architecture for construction of overlay networks spanning multiple clouds. We have designed and implemented Suorgi for this purpose, a run-time that supports extensibility of cloud infrastructures. Novice users can now construct their private cloud overlay networks without explicit programming knowledge. Key to support this is meta-code, preprogrammed code modules extending and augmenting the cloud infrastructure to fit specific user needs. Meta-code can implement, for instance, fine-level trust policies, replication management, auditing, and provenance mechanisms.