The IEKP institute at the Karlsruhe Institute of Technology (KIT) is sharing a cluster with nine different departments. The cluster, maintained by the central computing department of KIT is installed with a SuSE Enterprise Linux. To be able to use CERN specific setups and software (e.g. AFS, CMSSW) the IEKP relies on a Scientific Linux OS environment. Therefore, we developed the dynamic virtualization of worker nodes within common batch systems (ViBatch) as presented already at CHEP09. In order to cope peak load times of the cluster we now extended this local "by-job" virtualization system by using worker nodes which are automatically spawned within cloud resources through the "Responsive On-demand Cloud Enabled Deployment" (ROCED). ROCED hereby manages the monitoring of the local job queues and spawns automatically new cloud worker nodes if a certain queue length threshold is reached. The locally used virtual machines are setup with SLC5 and use the CernVMFS to provide the CMS software transparently to our users.
The presentation will give a summary on both tools, ViBatch and ROCED, their new features and the experiences of using the combination of both in our local analysis production system.