Elisabetta Ronchieri, Giacinto Donvito, Paolo Veronesi, Davide Salomoni, Alessandro Italiano, Gianni Dalla Torre, Daniele Andreotti, Alessandro Paolini. Resource Provisioning through cloud and grid interfaces by means of the Standard CREAM CE and the WNoDeS Cloud Solution. In Proceedings of Science. pages 1-12, 2012.
Resource provisioning using both cloud and grid interfaces offers flexible solutions for existing infrastructure providers and end users alike. In this paper, we will present the work done to build a cloud infrastructure on top of an EGI grid farm by means of the standard CREAM CE and of the WNoDeS cloud solution. The ultimate goal of this work is to provide the end user with a rich set of interfaces to access computing resources, such as standard grid job submission, grid job submission to specific virtual machine images, a Web interface for self-allocating virtual machines, and interactive provisioning and usage of virtual images. The solution is based on open source software like CREAM CE, WNoDeS, Torque/Maui and Lustre. It is intended to fulfill the computing requirements of several and largely different community of researchers, starting from HEP and other communities that have been maturing valuable experiences in grid computing for many years, but providing also simple and user friend interfaces for users or communities that do not have the needed expertise to exploit complex grid infrastructures.