BOSS: A Multitenancy Ad-Hoc Service Orchestrator for Federated Openstack Clouds

Nowadays, more and more Cloud providers are appearing on the market. In this context, a typical issue is represented by the management of distributed services deployed on different federated Cloud providers. Assuming that a distributed service consists of several microservices, in this paper, we specifically focus on the setup of virtual environments and on deployment tasks required in each Federated Cloud providers In particular, we present BOSS an Orchestration Broker that starting from an ad-hoc OpenStack-based Heat Orchestration Template (HOT) service manifest produces several HOT microservice manifests including deployment instructions for involved Federated Clouds. Therefore, users can formalize advanced deployment constrains in terms of data export control, networking, and disaster recovery. Experiments prove the goodness of the proposed system in terms of performance.