OpenStack is an industry-standard open-source cloud management platform. Using OpenStack, one can build public, private or hybrid clouds easily. Due to the purely open nature of the platform, major IT vendors including Red Hat, Rackspace, IBM and HP are betting on its future, actively contributing to OpenStack development. In OpenStack, there are two different interfaces for managing cloud resources. One is via Horizon, web-based OpenStack dashboard, and the other is via OpenStack command line interface (CLI).