As 2011 draws to an end, we’d like to review what this year has meant for the OpenNebula project and give you a peek at what you can expect from us in 2012. You have all the details about the great progress that we have seen for the OpenNebula project in our monthly newsletters that we started in June.  Most of the time has been spent developing new features to continue to deliver the open-source industry standard for data center virtualization, offering the most feature-rich and flexible solution for comprehensive management of virtualized data centers.


The stable version of OpenNebula 2.2 was released in March with the new SunStone GUI and important new features for fault tolerance and scalability. Seven months later, in October, the project released OpenNebula 3.0 with management of zones and virtual data centers, new authentication methods with usage quotas, a VM template repository, a new monitoring and accounting service, and a new network subsystem with support for Open vSwitch and 802.1Q tagging. OpenNebula 3.0 features the latest innovations in cloud computing for the deployment of cutting-edge enterprise-ready on-premise IaaS clouds.

A few days ago we announced the availability of the Release Candidate of OpenNebula 3.2. This is the first version developed within the new rapid release development cycle that will allow us to more quickly deliver new features and innovations to the community as well as incorporate our users’ requirements and feedback from the community. OpenNebula 3.2 focuses on network management, security management, enhanced VMware support, and a new OpenNebula self-service portal.

C12G Labs has delivered new versions of its addons to support VMware, accounting and LDAP. These addons are being incorporated into the main distribution of OpenNebula 3.2. In 2011, C12G announced several releases of the OpenNebulaPro distribution providing the rapid innovation of open-source, with the stability and long-term production support of commercial software.


Last month, we celebrated OpenNebula’s fourth birthday. We took that opportunity to look back at how the project has grown in the last four years. OpenNebula has evolved into an active open-source project with a community that, by many measures, is more than doubling each year.  In 2011, had more than 600,000 visits and 7,000,000 page views.

During 2011, several new components have been contributed to the OpenNebula ecosystem, like SVMSchedPython bindings for OCA , VirtualBox driver, OpenVZ driverStudiCloud or OCCI 1.1 Implementation, and many organizations contributed new guides and experiences to our blog. 2011 also saw a truly remarkable growth in the number of organizations and projects using OpenNebula, and many large companies and research centers were added to our list of featured users.

We revamped the OpenNebula community wiki, which now has its own site: Many OpenNebula community members have used this wiki to share howtos or provide links to guides, white papers, or use cases. We have collaborated with the main open-source projects in the cloud computing domain, such as CFengineLibcloud, Puppet, Xen Cloud Platform, CompatibleOne, OpenVirtualization Alliance… , and companies in the virtualization market, such as Microsoft, which is providing technical guidance to help us add and maintain Hyper-V on the list of officially supported hypervisors. OpenNebula is now part of the repositories of the main Linux distributions: OpenSUSEFedoraDebian and Ubuntu.

We were excited to hear that several public organizations, like UK’s Cabinet Office, the Canadian Cloud Best Practices Council, or the European Commission, reference OpenNebula as an interoperable enterprise-ready open-source alternative to proprietary solutions for cloud computing. We created a new working group to help support the development of standards around OpenNebula.


OpenNebula presented 20 keynotes, invited talks and tutorials in the main international events in cloud computing in 10 different countries

About 2012

The final release of OpenNebula 3.2 will be available in a few days. This update of the 3 series focuses on network management, security management, and out-of-the-box enhanced support for VMware clouds. It also features a first version of the new OpenNebula Self-Service Portal for end-users of the cloud. But that’s not all! We have also started developing the new features that will be available in OpenNebula 3.4, due in Q1 2012. In fact, we’re planning four major releases of OpenNebula in 2012.

In the coming year, we hope to accelerate the initiatives to support our wide community of users and developers, and the ecosystem of open-source components and innovative projects being created around OpenNebula. In addition, we’ll be ramping up some of our plans around developing training materials, collaborating with other communities, and doing our best to help grow the OpenNebula community in a sustainable way. We will also announce new collaborations with leading IT companies in open-source and innovation in cloud computing management.

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If OpenNebula has become such a successful open source project, it is in no small part thanks to its awesome community of users and developers. We have updated the list of people that have contributed to OpenNebula during the last four years. Please send us an email if we forgot to include your name. We appreciate your feedback and welcome your comments on all issues. The team will be monitoring this post for the next weeks or so and will try and answer all the questions we can.

Thanks for continuing to spread the word. We’d also like to take this opportunity to wish you health, happiness and prosperity in 2012 to you and your loved ones!

On behalf of the OpenNebula project.

Two days before Christmas the OpenNebula team was able to get all the green lights in the Christmas tree as well as in the Jenkins console. A good number of bug fixes has been packed with the OpenNebula 3.2 Release Candidate (RC). This release does not include any new features, but the team (the unlucky part of it) is working this Christmas to get in shape a couple of new additional components to the OpenNebula distribution…

Note that VMware drivers are not fully integrated yet in the release. Data Centers using VMware are advised not to update to this version.

Merry Christmas and cloudy new year!


A new episode of the screencast series is now available at the OpenNebula YouTube account.

This screencast shows the ability of the oZones component to manage several instances (zones) of OpenNebula, potentially hosted within the same data center to enhance isolation, scalability and performance, or in different data centers to build a geographically distributed multi-site cloud. The oZones server offers a single access point, and centralized management and monitoring, for multiple zones, providing the ability to show their aggregated resources: templates, images, users, virtual machines, virtual networks and hosts.

Again, enjoy the screencast!

A new How-to has been included in the OpenNebula Community Wiki. This guide can be used to develop new drivers in order to interact with external Cloud providers in an OpenNebula Hybrid Cloud deployment.  Currently the OpenNebula distribution includes drivers to interact with EC2 to combine local resources with resources from EC2 .

Link:  How to Develop a New Driver to Interact with an External Cloud Provider

OpenNebula has been invited by the European Commission to speak at The 4th EU-Japan Symposium on New Generation Networks and Future Internet in Tokyo the 19th of January, 2011. Our Project Director will speak about the key technology challenges in IaaS cloud computing to enable the Future Internet of Services, through scalable and elastic service platforms, cloud aggregation architectures to enable the collaboration and interoperation of cloud providers, and improvement of security, reliability and energy sustainability.

OpenNebula is addressing many of these challenges through innovative features that address the requirements of business use cases from leading companies across multiple industries in the context of flagship international projects in cloud computing, such as RESERVOIR, StratusLab, BonFIRE, or 4CaaSt. Additionally, OpenNebula is being used as reference open stack for cloud computing in several large research and infrastructure projects.

Send us an email to if you want to meet us at the EU-Japan Symposium!

The OpenNebula project announces the general availability of the first beta release of OpenNebula 3.2. This is the second release of the OpenNebula’s new development cycle. With this release we start the process of integrating C12G addons-contributions into OpenNebula main distribution, hence the VMware drivers are not fully functional on this beta. Clouds using VMware hypervisor are advised not to update.

With this Beta release, the master branch of the OpenNebula repository is in a feature-freeze mode and the OpenNebula developers concentrate on fixing bugs and smoothing rough edges in the software.


Here’s our monthly newsletter with the main news from the last month, including what you can expect in the coming months.


We announced a new rapid release development cycle that will allow us to more quickly deliver new features and innovations to the community as well as incorporate requirements of our users and feedback from the community. Shortly afterwards, we announced the first pre-release of OpenNebula 3.2, with OpenNebula 3.2 Final scheduled for December 20th (the blue-prints for this release can be found at the development portal).

A few days ago, we celebrated OpenNebula’s fourth birthday! We took a look back at how the project has grown in the last four years.

C12G Labs released OpenNebula 3.0 Pro, and a new version of the VMWare addon. In fact, the VMWare addon, with extended features developed by C12G Labs, will now be included with OpenNebula, starting with version 3.2.


openSUSE 12.1 was recently released, with OpenNebula included in their Virtualization and Cloud repository.

OW2 announced its first CompatibleOne Cloud Broker Demonstration, enabling the deployment of applications across different OpenNebula and OpenStack cloud computing heterogeneous infrastructures.

Ken Barber (from Puppet Labs) gave a talk on Puppet and OpenNebula at the London Puppet Users Meetup. You can see a video of his talk here.

The National Institute of Advanced Industrial Science and Technology (AIST), Japan’s largest public research organization, was added to our list of featured users.

Finally, we were glad to see that most of the cloud providers in EGI (European Grid Infrastructure) are using OpenNebula.


We have the following upcoming events:

  • OpenNebula will participate in the Open Source Virtualization and Cloud devroom at FOSDEM 2012 (Free and Open source Software Developers’ European Meeting), Brussels, Belgium, February 4-5, 2012.
  • A workshop on basic and advanced use of OpenNebula will take place in the Open Source Datacenter Conference (OSDC) in Nuremberg, Germany, April 24-26, 2012

Remember that you can see slides and resources from past events in our Outreach page.