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( => ( => ( => Apache CloudStack [pageid] => 35956878 ) =>
""CloudStack Logo.png
"Original author(s) ", "Citrix
"Developer(s) "Apache Software Foundation
"Stable release [1] / January 3, 2017; 12 months ago (2017-01-03)[1]
Written in "Java (primarily)
"Operating system Cross-platform for management servers, GNU/Linux for hosts, Windows, GNU/Linux, and BSD for guests (depending on hypervisor).[2]
"Platform "Java
"Type "Cloud computing
"License "Apache License 2

CloudStack is "open source "cloud computing software for creating, managing, and deploying "infrastructure cloud services. It uses existing "hypervisors such as "KVM, "VMware ESXi|VMware vcenter and "XenServer/XCP for virtualization. In addition to its own API, CloudStack also supports the "Amazon Web Services (AWS) API[3] and the "Open Cloud Computing Interface from the "Open Grid Forum.[4]



CloudStack was originally developed by, formerly known as VMOps.[5]

VMOps was founded by "Sheng Liang, Shannon Williams, "Alex Huang, Will Chan, and Chiradeep Vittal in 2008.[6][7] The company raised a total of $17.6M in venture funding[8] from "Redpoint Ventures, Nexus Ventures and "Index Ventures (Redpoint and Nexus led the initial Series A funding round). The company changed its name from VMOps to on May 4, 2010, when it emerged from "stealth mode by announcing its product.[9][5][10] was based in "Cupertino, "California.

In May 2010, released most of CloudStack as "free software under the "GNU General Public License, version 3 (GPLv3).[11] They kept about 5% proprietary.[12] and Citrix both supported "OpenStack, another Apache-licensed cloud computing program, at its announcement in July 2010.[13][14][15]

In October 2010, announced a partnership with "Microsoft to develop the code to provide integration and support of Windows Server 2008 R2 Hyper-V to the OpenStack project.[16]

"Citrix Systems purchased on July 12, 2011, for approximately $200 million.[17][18][19] In August 2011, Citrix released the remaining code under the "Apache Software License with further development governed by the "Apache Foundation.[12] In February 2012, Citrix released CloudStack 3.0. Among other features, this added support for "Swift, OpenStack's S3-like object storage solution.[20] In April 2012, Citrix donated CloudStack to the "Apache Software Foundation (ASF), where it was accepted into the "Apache Incubator; Citrix changed the license to the "Apache License version 2. As part of this change, Citrix also ceased their involvement in "OpenStack.[21] On November 6, 2012, CloudStack 4.0.0-incubating was announced,[22] the first stable release after joining ASF. On March 20, 2013, CloudStack graduated from Apache Incubator and became a "Top-Level Project (TLP) of ASF.[23] The first stable (maintenance) release after graduation is CloudStack 4.0.2.[24]

Key features[2][edit]

Supported hypervisors[edit]

BareMetal hosts[edit]

Deployment architecture[edit]

The minimum production installation consists of one machine running the CloudStack Management Server and another machine to act as the cloud infrastructure (in this case, a very simple infrastructure consisting of one host running hypervisor software). In its smallest deployment, a single machine can act as both the Management Server and the hypervisor host (using the KVM hypervisor).[25]

Multiple management servers can be configured for redundancy and load balancing, all pointing to a common "MySQL database.


In July 2012 it was reported that "Datapipe launched the largest international public cloud to be built on CloudStack, which included 6 data centers in the USA, Britain, and Asia.[26]

Apache CloudStack has a number of users:[27][28]


  1. ^ a b "Apache CloudStack GitHub Releases". 
  2. ^ a b "Features". CloudStack. Retrieved 2016-09-02. 
  3. ^ "Supported AWS API Calls". Retrieved May 17, 2013. 
  4. ^ "OCCI Interface to CloudStack". Retrieved Feb 26, 2014. 
  5. ^ a b Timothy Prickett Morgan (May 4, 2010). " takes on virty infrastructure". The Channel. Retrieved December 12, 2017. 
  6. ^ John Fontana (January 28, 2009). "Start-up VMOps aims to ease cloud deployments". Network World. Retrieved June 1, 2013. 
  7. ^ "Company Overview". VMOps web site. Archived from the original on January 22, 2009. Retrieved June 1, 2013. 
  8. ^ "More Cash for Hot New Cloud Startup, VMOps". February 18, 2010. Retrieved June 18, 2012. 
  9. ^ " Launches, Extends Leadership Team and Announces New Funding" (Press release). May 4, 2010. Archived from the original on September 19, 2010. 
  10. ^ Dave Rosenberg (May 4, 2010). " software stack goes open source". Software, Interrupted. CNET News. Retrieved June 18, 2012. 
  11. ^ " launches, announces funding, open source" (Press release). May 4, 2010. Archived from the original on September 18, 2010. 
  12. ^ a b "CloudStack Process Changes: Working the Apache Way". CloudStack. April 17, 2012. Archived from the original on April 29, 2012. 
  13. ^ "NASA and Rackspace open source cloud fluffer". The Register. July 19, 2010. Retrieved May 27, 2012. 
  14. ^ Peder Ulander (July 22, 2010). "You Are Now Free to Move About in the Cloud". OpenStack blog. Retrieved June 1, 2013. 
  15. ^ Clark, Jack (July 19, 2010). "Nasa, Rackspace launch OpenStack cloud interoperability scheme | Cloud | ZDNet UK". Retrieved June 18, 2012. 
  16. ^ Harris, Derrick Harris (October 22, 2010). "Microsoft Joins OpenStack to Add Hyper-V Support." Retrieved November 2011.
  17. ^ "Citrix &". July 12, 2011. Retrieved June 18, 2012. 
  18. ^ "Citrix Makes a Run at the Cloud". BusinessWeek. July 14, 2011. Retrieved May 27, 2012. 
  19. ^ "Citrix Buys for More Than $200 Million; Redpoint Is on a Roll". TechCrunch. July 12, 2011. Retrieved May 27, 2012. 
  20. ^ "Citrix CloudStack 3 Brings the Power of Amazon-Style Clouds to Customers of All Sizes". Citrix. February 13, 2012. Retrieved May 27, 2012. 
  21. ^ "Citrix Splits With OpenStack, Takes Cloud to Apache". Wired. April 4, 2012. Retrieved May 27, 2012. 
  22. ^ "Apache CloudStack 4.0.0-incubating Released". Apache Software Foundation. November 6, 2012. Retrieved May 17, 2013. 
  23. ^ "CloudStack Project Incubation Status". Apache Software Foundation. March 20, 2013. Retrieved May 17, 2013. 
  24. ^ "Apache CloudStack 4.0.2 Released". Apache Software Foundation. April 24, 2013. Retrieved May 17, 2013. 
  25. ^ "Deployment Architecture Overview". CloudStack. Retrieved May 17, 2013. 
  26. ^ "Datapipe launches largest CloudStack deployment". NetworkWorld. July 17, 2012. Retrieved Jan 31, 2013. 
  27. ^ "Are these people really all using CloudStack?". 
  28. ^ "CloudStack Users Apache Wiki". 

External links[edit]

User groups[edit]

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