Abstract
Open source cloud technologies such as OpenStack, CloudStack, OpenNebula, Eucalyptus, OpenShift, and Cloud Foundry have gained significant momentum in the last few years. For a researcher and practitioner, they present a unique opportunity to analyze, contribute, and innovate new services using these technologies. The first part of the tutorial will provide an overview of OpenStack and CloudStack, two open source infrastructure as a service (IaaS) cloud platforms. The second part of the tutorial will present a detailed analysis of different OpenStack components, namely, glance (image service), nova (compute service), keystone (security service), quantum (network service), and swift (object storage service). In particular, the tutorial will describe the scheduling and provisioning process in OpenStack, and how different configuration options lead to myriad provisioning performance. Further, the tutorial will describe how OpenStack has evolved over releases. Finally, the tutorial will describe weaknesses of OpenStack and highlight important areas where researchers can contribute. © 2012 ACM.