Towards Programmable Infrastructures: the Steps made by Cloud Computing and their Technical Support

In this paper we argue that the Platform-as-a-Service (PaaS) has a high potential to improve the state-of-the-art of infrastructure programmability. In this context we analyze the basic requirements for programmability and their fulfillment by the current PaaSs. As case study, the readiness for programming infrastructure of a recent developed open- source PaaS is analyzed.