||It has been suggested that Cloud.com be merged into this article. (Discuss) Proposed since August 2012.|
|Original author(s)||Cloud.com, Citrix|
|Developer(s)||Apache Software Foundation|
|Stable release||4.2.0 / October 1, 2013|
|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).|
|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, vSphere, and XenServer/XCP for virtualization. In addition to its own API, CloudStack also supports the Amazon Web Services (AWS) API. and the Open Cloud Computing Interface from the Open Grid Forum 
CloudStack was originally developed by Cloud.com, formerly known as VMOps. In May 2010, Cloud.com released most of CloudStack as free software under the GNU General Public License, version 3 (GPLv3). They kept about 5% proprietary. Cloud.com and Citrix both supported OpenStack, another Apache-licensed cloud computing program, at its announcement in July 2010.
Citrix purchased Cloud.com on July 12, 2011, for approximately $200 million. In August 2011, Citrix released the remaining code under GPLv3 and continued moving towards more open processes. In February 2012, Citrix released CloudStack 3.0. Among other features, this added support for Swift, OpenStack's S3-like object storage solution. 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. On November 6, 2012, CloudStack 4.0.0-incubating was announced, 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. The first stable (maintenance) release after graduation is CloudStack 4.0.2.
- Built-in high-availability for hosts and VMs
- AJAX web GUI for management
- AWS API compatibility
- Hypervisor agnostic
- Snapshot management
- Usage metering
- Network management (VLAN's, security groups)
- Virtual routers, firewalls, load balancers
- Multi-role support
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).
Multiple management servers can be configured for redundancy and load balancing, all pointing to a common MySQL database.
- CloudStack NYC User Group on MeetUp
- CloudStack European User Group on LinkedIn
- CloudStack India Bangalore Chapter User Group on MeetUp
- CloudStack India Hyderabad Group on MeetUp
- CloudStack China Group
- CloudStack Brazil User Group on LinkedIn
- "Features". CloudStack. Retrieved May 17, 2013.
- "Supported AWS API Calls". Retrieved May 17, 2013.
- "OCCI Interface to CloudStack". Retrieved Feb 26, 2014.
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- "CloudStack Process Changes: Working the Apache Way". CloudStack. April 17, 2012. Retrieved May 27, 2012.
- "NASA and Rackspace open source cloud fluffer". The Register. July 19, 2010. Retrieved May 27, 2012.
- "Citrix Makes a Run at the Cloud". BusinessWeek. July 14, 2011. Retrieved May 27, 2012.
- "Citrix Buys Cloud.com for More Than $200 Million; Redpoint Is on a Roll". TechCrunch. July 12, 2011. Retrieved May 27, 2012.
- "Citrix CloudStack 3 Brings the Power of Amazon-Style Clouds to Customers of All Sizes". Citrix. February 13, 2012. Retrieved May 27, 2012.
- "Citrix Splits With OpenStack, Takes Cloud to Apache". Wired. April 4, 2012. Retrieved May 27, 2012.
- "Apache CloudStack 4.0.0-incubating Released". Apache Software Foundation. November 6, 2012. Retrieved May 17, 2013.
- "CloudStack Project Incubation Status". Apache Software Foundation. March 20, 2013. Retrieved May 17, 2013.
- "Apache CloudStack 4.0.2 Released". Apache Software Foundation. April 24, 2013. Retrieved May 17, 2013.
- "Deployment Architecture Overview". CloudStack. Retrieved May 17, 2013.
- "Datapipe launches largest CloudStack deployment". NetworkWorld. July 17, 2012. Retrieved Jan 31, 2013.
- Apache CloudStack: Open Source Cloud Computing
- The Apache CloudStack Blog (Weekly News)
- Apache CloudStack Documentation
- Apache CloudStack Wiki
- SlideShare presentations of Apache CloudStack
- YouTube channel of Apache CloudStack
- Apache Cloudstack Book