Information Technology Reference
In-Depth Information
Chapter 7
WS-PGRADE/gUSE and Clouds
Zolt
á
n Farkas,
Á
kos Hajnal and P
é
ter Kacsuk
Abstract Cloud computing is becoming more and more popular compared to grid
computing due to its virtualization capabilities, flexibility and elasticity. In order to
keep up with this trend, WS-PGRADE/gUSE has been extended with the possibility
to use cloud infrastructures in workflows, either directly as described in Chap. 4 or
via the CloudBroker Platform service. In this chapter we present the integration of
WS-PGRADE/gUSE and the CloudBroker Platform, which is particularly useful in
the case of accessing commercial clouds and/or using preregistered applications
in commercial and academic clouds.
7.1 Introduction
In this chapter we are present the integration of WS-PGRADE/gUSE with the
CloudBroker Platform (CBP) [CBP] to enable usage of cloud computing resources
in WS-PGRADE/gUSE-based scienti
c workflows. The advantage of using the
CloudBroker Platform is that it offers a service capable of hiding the differences
between using different types of cloud infrastructures, and thus provides a simpli
ed
method to connect different computing infrastructures to WS-PGRADE/gUSE.
Another bene
it of the integration is that it enables Software-as-a-Service-like (SaaS)
and Infrastructure-as-a-Service-like (IaaS) cloud usage from the users
'
point of view,
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