GaaS 2.0: the new release based on OpenStack with features implemented with OCCI

Cloud computing has been widely adopted as an alternative paradigm with respect to Grid computing to provide resources because of the advantages it brings to both users and providers. GaaS (Grid as a Service) was born with the aim to enable the use of Cloud-provided resources with well-established Grid-like interfaces, avoiding resources to learn new resources access and use models. in previous experiences, we developed a prototype for GaaS, by using the most used Cloud open source technologies and frameworks available at that time (e.g., Eucalyptus, OpenNebula). here, we present the final stage of our work on GaaS that is now based on several de facto and consolidated standards in Cloud, Virtualization and Grid worlds: OpenStack, KVM and EMI. Furthermore, we present both i) a production level of GaaS and ii) GApp (GaaS APPlication), mobile interface to the GaaS framework