OpenStack is a combination of various open source technologies glued together to create a platform that provides various cloud services. These services mainly include compute, networking, storage, imaging, identity, and user interface. It is deployed as an Infrastructure as a Service (IaaS) cloud and can be managed using either the web console, command line, or REST APIs. Users can create resources such as instances, volumes, virtual routers and switches, firewalls, load balancers, and so on using open source technologies and thus form a stack of resources, hence the name OpenStack.
The OpenStack project began in 2010 and was mainly developed by NASA and Rackspace. Later, it became an open source project and was owned by the OpenStack Foundation. The OpenStack community now includes a large number of companies, each of which contributes to the...