OpenStack

OpenStack is a free and open-source cloud-computing software platform. Users primarily deploy it as an infrastructure-as-a-service (IaaS). The technology consists of a group of interrelated projects that control pools of processing, storage, and networking resources throughout a data center—which users manage through a web-based dashboard, through command-line tools, or through a RESTful API. OpenStack.org released it under the terms of the Apache License.

OpenStack began in 2010 as a joint project of Rackspace Hosting and of NASA. As of 2015 it is managed by the OpenStack Foundation, a non-profit corporate entity established in September 2012 to promote OpenStack software and its community. More than 500 companies have joined the project, including AppFormix, Arista Networks, AT&T, AMD, Avaya, Canonical, Cisco, Citrix, Comcast, Dell, Dreamhost, EMC, Ericsson, Fujitsu, Go Daddy, Google, Hewlett-Packard, Hitachi Data Systems, Huawei, IBM, Intel, Internap, Juniper Networks, Mellanox, Mirantis, NEC, NetApp, Nexenta, Oracle, PLUMgrid, Pure Storage, Qosmos, Red Hat, SolidFire, SUSE Linux, VMware, VMTurbo and Yahoo!

The OpenStack community collaborates around a six-month, time-based release cycle with frequent development milestones.[15] During the planning phase of each release, the community gathers for an OpenStack Design Summit to facilitate developer working-sessions and to assemble plans.