This next 2nd of June, OpenNebula will proudly be a gold sponsor of the third edition of OpenExpo 2016, to be held in Madrid, Spain. The objective of this event is to promote and evaluate solutions and tendencies in the FLOSSS industry.

OpenExpo Web Page

OpenNebula will have a booth in which members of the project will be presenting the new features available in the upcoming release, 5.0 Wizard; as well as give two talks about the OpenNebula technology:

If you are around Madrid next week and want to learn and discuss OpenNebula, come and join us in OpenExpo!


The OpenNebula project is proud to announce the availability of OpenNebula 5.0 ‘Wizard’ Beta. This major update comes with several improvements in different subsystems and components, with minimal changes in the API and the VM life-cycle states, which embodies long overdue changes but implemented to minimize the impact and ensure backwards compatibility as far as possible.

A myriad of outstanding new features make their debut in Wizard. Sunstone never stops evolving, and this is the look and feel the team is most proud of to date.


Since sharing, provisioning and consuming cloud images is one of the main concerns when using Cloud, one of the most important new features is the new revamped Marketplaces. They can be seen as external datastores, where images can be easily imported, exported and shared by a federation of OpenNebula instances.


Native support for Virtual Routers is also great news in 5.0. Virtual Routers are an OpenNebula resource that provide routing across virtual networks. The routing itself is implemented with a VM appliance provided by the OpenNebula installation, which can be seamlessly deployed in high availability mode. This functionality is available for the VDC administrator, which can then join together virtual networks within her VDC.


For large scale deployments, a long overdue feature is the ability to group resources using labels, which is now present in Wizard’s Sunstone. This new feature will enable the possibility to group the different resources under a given label and filter them in the admin and cloud views.

For vCenter-based OpenNebula clouds, 5.0 is good news! Support for vCenter storage resources like Datastores and VMDKs enable a wealth of new functionality, like for instance VMDK upload, cloning and deleting, VM disk hotplug, choose Datastore for newly launched VMs and many more. Also, support for resource pools comes in this new major update, as well as the ability to instantiate to persistent (also available for KVM), all packed in an optimized driver.

There are many other improvements in 5.0 like dynamic context regeneration, new host offline mode, cluster resource sharing, VM configuration update, renamed VM life-cycle, support for DB change, improved KVM, vCenter, and datastore monitoring, better VNC port number assignment, dynamic security groups (this is a very nice to have!), support for qemu guest agent, improved VM life-cycle naming and operations, updated instance types for the supported public clouds, improved LVM drivers, enabling use of Ceph without a shared filesystem for system datastore, a humongous number of improvements in all areas and dialogs in Sunstone, enhanced OneGate component to report application metrics, and much much more. Also, and as usual, great effort was put in this release to help build and maintain robust private, hybrid and public clouds with OpenNebula, fixing reported bugs and improving general usability. Check the full list of changes in the development portal.

This OpenNebula release is named after NGC 7380 (also known as the Wizard Nebula), an open cluster also known as 142 in the 1959 Sharpless catalog (Sh2-142). This reasonably large nebula is located in Cepheus. It is extremely difficult to observe visually, usually requiring very dark skies and an O-III filter.

The OpenNebula team is now set to bug-fixing mode. Note that this is a beta release aimed at testers and developers to try the new features, hence not suitable for production environments. Feedback is more than welcome for the final release.

The OpenNebula project would like to thank the community members and users who have contributed to this software release by being active with the discussions, answering user questions, or providing patches for bugfixes, features and documentation.

Virtual Routers functionality was funded by Unity in the context of the Fund a Feature Program. Host offline mode, Marketplace, cluster resource sharing and Ceph as system datastore functionalities were funded by BlackBerry in the context of the Fund a Feature Program.

Relevant Links

The OpenNebula monthly newsletter, with latest developments, events and future plans for the upcoming months from the OpenNebula project. Read this newsletter to keep up to date with your favorite Cloud Management Platform.

Important! There are new dates for the OpenNebulaConf 2016, now it starts one day before, October 24-26. You might be interested in taking a look at the sponsorship opportunities.


Spring is slowly fading into summer (at least in the north hemisphere, that is), and meanwhile we are slowly (but hectically, make no mistake) cooking OpenNebula 5.0 to deliver a new release of the state of the art cloud management platform that you cherish.
Most seek after features are ready and now undergoing the relentless certification process:

  • revamped Marketplace, now a first class citizen in OpenNebula, to import/export images to and from any datastore (including the new vCenter datastores)
  • vCenter storage management, including datastore selection, disk hotplug, vmdk creation, cloning and deletion; and full integration with the new Marketplace functionality. Also, vCenter resource pool selection for deployed VMs will be possible
  • fully integrated virtual router management (including default and transparent HA for routers). Link virtual networks together using a robust HA router, that will come out of the box in OpenNebula
  • revisited Sunstone style and interface changes (sneak peek), including an extension of the Cloud View available operations, to iron out the wrinkles in the user experience
  • instantiate to persistent! Do not lose your VM changes, OpenNebula will create a new VM Template and preserver the disks of a VM, even if they are non-persistent

Check the full list of feature in the development portal.

Take a look at the sneak peak of the new Sunstone layout, do you like it? Let us know!

Screen Shot 2016-05-04 at 15.31.43


Let’s see what’ve been brewing in our amazing community this past month.

Our friends at LINBIT have published an excellent blog post describing the new DRBD manage add-on for OpenNebula to achieve High Availability in the storage backend. Very interesting, keep up the good work!

CipherSpace have contributed an awesome blog post describing their experiences adapting OpenNebula to their needs to serve their customers. In particular, it is very interesting the extensions to build Private Virtual Datacenters. A must read!

With the flexibility provided by the OpenNebula platform, we were able to create a valuably different solution in the PvDC model with nearly all our effort in the conceptual development of what we wanted to offer and the testing of small adaptations of OpenNebula

Other contributions are also welcome! For instance this extension to the EC2 server authorization, a Devuan (for those init lovers!) OpenNebula ready image in the marketplace and also a new CoreOS image also in the marketplace. Also interesting this automated way of deploying OpenNebula in HA.
We want to thank the community for their active involvement in the OpenNebula forum. Helps for helping the newcomers and having such a good vibe!


The next OpenNebula Conference in Barcelona in October 2016 has been rescheduled to start one day before, from 24 to 26 of October. If you are willing to attend and can save now the date you can take advantage of a 40% discount in your Conf tickets. After the Conf’s first sponsor, StorPool, NodeWeaver also is going to participate as a Gold sponsor. Welcome! Learn about the different sponsorship opportunities in the Conference web page. If you want to understand what all the OpenNebula Conference fuzz is about, check the last Conference material (talks, slides,pictures).

Check out the projected OpenNebula TechDays for this year in case one is close to your location. This past month three TechDays were held in North America, in particular in Dallas, Toronto and Cambridge. Check out the TechDay web pages for the slides. We want to thank you the sponsors that made possible these TechDays and also the attendees. We hope they were productive, we certainly received valuable feedback that will help us shape the future roadmap of the project.


If you are interested in participating in (or hosting) any of these TechDays agenda let us know. Besides the TechDays already celebrated (in Kuala Lumpur, Sofia, Madrid, Dallas, Toronto and Cambridge), this year members of the OpenNebula team will be participating in TechDays the following locations: Ede, Nuremberg and Dublin.
Members of the OpenNebula team will be present in the following events in upcoming months:

Remember that you can see slides and resources from past events in our Events page. We have also created a Slideshare account where you can see the slides from some of our recent presentations.

Next week, on the 13th of May 2016, will host a new edition of an OpenNebula Cloud TechDay.

This TechDay will feature a 4-hour hands-on tutorial in which you will learn how to install and configure an OpenNebula Cloud from scratch. The presentations in the afternoon will be focused in Ceph. We want you to learn as much as possible about Ceph best-practices and how to use it with your OpenNenbula Cloud.

The agenda for the afternoon is:

  • Object scale out with Eternus CD10000 by Walter Graf and Frits de Kok from Fujitsu.
    Introduction to object storage, Ceph concepts and internals and how Fujitsu managed to overcome administrative challenges involved in running a Ceph cluster.
    Fujitsu and BIT will be giving a demo of Fujitsu CD10000 and OpenNebula.
  • Building the Dutch National Archive with Ceph by Wido den Hollander, Part of the Ceph Board.
    The Dutch National Archive has chosen Ceph to store their data on in Groningen, The Netherlands. Together with ODC Noord I’ve built the 8PB Ceph cluster running in a IPv6-only network. This talk will go in-depth in the design decisions made when building this cluster.
  • The OpenNebula Ceph Drivers by Jaime Melis from OpenNebula Systems.
    Overview of the Ceph Drivers. Configuration attributes, peculiarities. Everything you should know about before deploying your OpenNebula + Ceph cloud.
  • BIT’s experiences playing with Ceph and OpenNebula by Stefan Kooman from
    BIT has been running a Ceph test cluster for some time and will talk about their experiences so far. A live demo is planned where we will test Ceph’s ability to recover from failure.

Join this TechDay to learn about OpenNebula, the Cloud, Ceph and benefit from the expertise of the speakers!






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