A Cloud Broker Architecture for Multicloud Environments

This chapter presents a cloud broker architecture oriented to manage the deployment of multitier and elastic services among available cloud providers. The chapter describes the current state of cloud brokers and their features. It analyzes the implementation of cloud brokering mechanisms representing several challenges. The chapter depicts the cloud broker architecture for multicloud environments and its components, specially focusing on the service description. It explains the scheduling policies used by the broker. The chapter discusses the obtained scheduling results in a single cloud scenario, presenting a use case in which the broker reduces the overall cost: deployment of a grid in a single cloud. It also discusses the obtained scheduling results in a multi-cloud scenario, showing the benefit of using the broker in two use cases: a web server and a virtual classroom.