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Citrix and CloudStack, a match made in Heaven (or in the Clouds;)



[Updated 3-15-2011: Citrix has decided to invest 100% in CloudStack as their infrastructrue-as-a-service platfrom. More information on CloudStack and Citrix can be found here.]

Today is a historical day for the CloudStack project. Citrix a leading provider of virtualization and cloud computing solutions, has announced that they will be acquiring the sponsor of the CloudStack project. This means that the CloudStack project will now benefit from the massive resources at Citrix’ disposal to help improve and drive the future success of CloudStack and open source cloud computing.

This isn’t the first time that CloudStack has collaborated with Citrix. In it’s early days CloudStack used it’s own hypervisor but it soon became evident that our best course of action was to use technologies from other software developers were they excel and focus on what we do best, cloud orchestration. This led us to collaborate with Citrix and we soon added support for Xen and Citrix Xenserver, both excellent hypervisors that continue to be a popular choice among CloudStack users for server virtualization.

This is an exciting time and we are sure you’ll have lots of questions so we have tried to anticipate your most common questions regarding this event in the following set of FAQs. For any additional questions feel free to leave a comment or email This email address is being protected from spambots. You need JavaScript enabled to view it. .

Will the CloudStack software still be available for download under an open source license?

Absolutely, Citrix has a long history of supporting open source most notably with their Xen hypervisor. CloudStack will continue to be actively developed and distributed as open source software.

What will happen to the current developers and CloudStack team?

The current CloudStack development team will continue to work on CloudStack as employees of Citrix to ensure the project continues to grow and thrive. Additionally the current CloudStack community team, Mark Hinkle and David Nalley will be joining Citrix and will continue to be working nurture the CloudStack community as well as collaborating with software user communities already active at Citrix.

How does this fit with Project Olympus, the OpenStack project and other Citrix efforts around next generation cloud technologies?

The acquisition of by Citrix is a double down effort of making OpenStack the preferred platform for open, scalable cloud infrastructures in the “Cloud Era”. shares the same vision as Citrix to drive open standards and tools that allow users to deploy and deploy open source cloud computing environments. This acquisition of builds upon Citrix’s commitment to the OpenStack initiative and accelerates making this cloud-optimized infrastructure platform commercially available in an easy to deploy, configure and manage solution that can be utilized by enterprise and service provider customers today.

As one of the most feature rich and open source based cloud platforms in the market today, brings a wealth of experience and capabilities to Citrix, Project Olympus and the OpenStack initiative.

What API will CloudStack support?

CloudStack will continue to support our own RESTful API . We will also continue to provide support for the Amazon web services API through our CloudBridge technology. By the end of 2011 we will also add full support for the OpenStack API.

So how does Citrix acquisition commitment to OpenStack affect the CloudStack project?

Citrix has already shown their dedication to OpenStack project with a team of developers helping to improve OpenStack on many fronts. was a founding member of the OpenStack community when Rackspace and NASA formed the project in July 2010. shares the same vision as others in the community to drive open standards and tools that allow users to deploy open source cloud computing environments. Our involvement in OpenStack community consists of the following:

  • Incorporating OpenStack technologies into our commercial product offerings
  • Contributing code and expertise we gathered from deploying the CloudStack product for some of the largest public and private clouds in the world

OpenStack has made significant progress since its initial launch, however it still has not achieved the feature set and maturity of CloudStack product. As with others in the community, including Rackspace; integration OpenStack into our production deployments will take time. Over the next year, is committed to working with the OpenStack community to bridge the gaps between the two cloud platforms and provide a migration path for customers who want to move from CloudStack to OpenStack.

How will CloudStack integrate with OpenStack Storage?

The CloudStack team is working with customers who want to place OpenStack Storage in production use. CloudStack is not a storage product, and as such, is not directly involved in commercialization, productizing, and support of OpenStack Swift technology. CloudStack is committed to integrating our products with OpenStack Swift object store deployments, just like we plan to do with other complimentary projects like Gluster and CEPH

By CloudStack version 3.0 targeted for release in Q3 2011, will support out-of-box integration of OpenStack Storage. OpenStack Storage will be an option for secondary storage that is used to store templates, ISO, and snapshots.

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Guest Saturday, 19 July 2014


Citrix supports the open source community via developer support and evangeslism. We have a number of developers and evangelists that participate actively in the open source community in Apache Cloudstack, OpenDaylight, Xen Project and XenServer. We also conduct educational activities via the Build A Cloud events held all over the world.