OpenNebula Conf 2015: Call for Speakers Reminder

As you may already know, this year OpenNebula Conf is taking place in Barcelona, Spain, on October 20-22. If you want to participate in this event and you have not submitted your talk yet, you have until March 31.

If you want to get an idea of the past OpenNebulaConf sessions, including talks from companies such as CentOS, Runtastic, Puppet Labs, Cloudweavers, RedHat, Deutsche Post, please check ourYoutube channel or download the presentations from our SlideShare account

Also we would like to remind you that the tickets are already available and if you buy your ticket before June 15th, you get the best discount of the year.

If you are interested on sponsoring this event, check out our sponsoring opportunities

Hope to see you there


Why Did We Choose OpenNebula for Runtastic?

Link to the original article at


Armin Deliomini is a Linux, virtualisation and database engineer at Austrian-based mobile fitness company Runtastic, and has made a rewarding journey from commercial cloud solutions – such as VMware and Oracle – in favour of completely open-source alternatives. Over the last two years Armin has implemented a private ecostructure for the Runtastic ecosystem and its 50 million users. Armin will be speaking today at Cloud Expo Europe taking place alongside Data Centre World, this week on the 11th and 12th March.

Since 2009 Runtastic has created apps, products and services for health and fitness tracking and management – a powerful infrastructure including around 300 virtual machines on thirty OpenNebula nodes, ensuring that 100 million downloaded apps and around 50 million registered users can access our services at any time.

We didn’t have a lot of time to decide on a technology to run our virtual environment. We had the classic vSphere environment in mind, but building an environment completely around opensource software spoke against a commercial virtual solution. We tested Ovirt, Proxmox and Openstack, the latter of which was very close, since we use Ubuntu in our overall infrastructure, and it was the most-hyped Opensource cloud solution at that time. A meeting with Tino Vasquez at the Netways booth at Cebit 2013 convinced us that OpenNebula was at least worth a thought.We set up a test installation; four months later our first production-grade OpenNebula cluster was fired up.

So why did we choose OpenNebula? Firstly, we liked the flexibility; in our business we don’t know exactly where the road ahead is leading. We had to find a technology that would grow with our needs and that we could adapt easily. We came at that time from a classic Virtualization background, with Vmware vSphere, and that was how we started with OpenNebula – classic virtual machines running on a hypervisor cluster that was managed by a central piece of software. But we also knew that this was not the future. OpenNebula gave us the comfort to start in a well known way, but at the same time gave us room to evolve.Our first set-up consisted of 16 KVM hosts and a Netapp storage serving NFS. In the beginning OpenNebula didn’t do more than give us an interface to start and stop machines, and to change their resource settings; but over time the situation developed very favourably. Our newly-launched machines are automatically included into Chef, and start doing their work within a minute. We also have the possibilty to start machines in external clouds in the event of resource shortages.

Our current projects are a new Cisco UCS Blade infrastructure operating as OpenNebula nodes, to lift our compute power to ~ 1000 cores, and Ceph as a future storage backend – a successor to our two NFS storages. We set up our first Ceph cluster in our preproduction environment recently.

We are no experts on OpenNebula, but then, we don’t have to be. It simply works…

Programme Open Cloud & Developer Park – Cloud Expo Europe 2015

We want to remind our community that OpenNebula will have strong presence in the upcoming Cloud Expo Europe 2015, which is only two weeks away on the 11th and 12th of March 2015 in ExCeL London. This is the biggest and best attended cloud event in the world , with over 300 top experts – including number 1 rated CIOs, Acclaimed Global Cloud Leaders, Cloud Gurus with HUGE twitter followings – all speaking in a compelling conference and seminar programme, which covers all the major technology and business issues.

The online programme for the Open Cloud & Developer Park, sponsored by the two leading open source Cloud Management Platforms, OpenNebula and OpenStack, is now available. The Park covers key open source cloud platforms, aiming to transmit technical knowledge and hands-on tutorials on today’s main open source IaaS platforms.

Moreover, the project will introduce a success story with Armin Deliomini, from Runtastic, at the CMSA theatre on Thursday 12th March at 12.15 – 12.40, to explain how OpenNebula saved them endless hours of tinkering!


Happen to be around London in the second week of March? Register for free and come to see some juicy talks around Cloud Management Platforms and in particular over interesting OpenNebula project details and user experiences.

OpenNebula Tech Day, Prague, Czech Republic, 25 March

The first OpenNebula Tech Day of 2015 will be held in Prague, Czech Republic and it will be hosted by CESNETcesnet-logo-800, the operator of Czech National Research Network, and the Czech National Grid Initiative. It its a long-term participant in European infrastructure projects, currently, among others, also operating an OpenNebula-based site within the European Grid Infrastructure’s Federated Cloud Platform.

The event will start on the 25th at 9:00 with a hands-on cloud installation and operation workshop, and will continue with presentations from OpenNebula community members and users. If you want to participate in this event and share your experience with OpenNebula, send us your talk proposal at

The number of seats is limited to ensure there is plenty of opportunity for everyone to interact. We encourage everyone to register as early as possible.

We hope to see you there! and a big thanks to CESNET for making OpenNebula Tech Day possible.


Upcoming TechDays in 2015

Besides our annual OpenNebula Conference, we are planning to organize Technology Day events in multiple cities globally during 2015.

The OpenNebula TechDays are full day events to learn about OpenNebula with a hands-on cloud installation and operation workshop, and presentations from community members and users that will focus on:

  • Sharing cloud use cases and deployment experiences
  • Introducing new integrations and ecosystem developments
  • Describing other related cloud open-source projects and tools

In the shorter term we are planning to organize TechDays in:

  • Prague, Czech Republic
  • Dublin, Ireland
  • Dallas, USA
  • Chicago, USA

For more information on past events, please visit the Cloud Technology Days page

Please send us an email at if you are interested in hosting a TechDays event.

We look forward to your answers

OpenNebula at Cloud Expo Europe 2015

CloudexpoEuropeOpenNebula will have an outstanding presence at this year’s edition of the Cloud Expo Europe on the 11th and 12th of March 2015 in ExCeL London. This is the biggest and best attended cloud event in the world , with over 300 top experts – including number 1 rated CIOs, Acclaimed Global Cloud Leaders, Cloud Gurus with HUGE twitter followings – all speaking in a compelling conference and seminar programme, which covers all the major technology and business issues.


In particular, OpenNebula will sponsor one of the corners of the Open Cloud & Developer Park. Besides several members of the OpenNebula Team, partners that add value to OpenNebula will be present, like viApps, CloudWeavers as well as OpenNebula Systems, the company behind OpenNebula.

The Park features a theatre were key members of the OpenNebula team and some of the partners will be speaking about the benefits of using OpenNebula to virtualize and manage datacenters. In particular, our Project Lead will introduce OpenNebula as a enabler for Flexible Enterprise Clouds, and other members will introduce the provisioning model of OpenNebula based on Virtual Datacenters and different views tailored for the different actors of the cloud.vone

The theatre will also feature talks from OpenNebula partners, sharing how their integrations add value to OpenNebula. Do not miss out the talk about vOneCloud, the open, drop-in replacement of vCloud that turns your vCenter infrastructure into a private cloud in three simple steps!


runtastic And last, but not least, our friend Armin Deliomini, from Runtastic, will join us in the CMSA theatre on Thursday 12th March at 12.15 – 12.40, to explain how OpenNebula saved them endless hours of tinkering!


Are you interested? Come and join us! You can register for free here.

2015 OpenNebula Events Plan

We have events in schedule already for 2015. If you have any questions on OpenNebula events, please contact us at

Thanks you for your support!

Industry Events

We are sponsoring and prepping for the next two industry events:

  • Cloud Expo Europe in London, 11-12 March 2015, where we will be present in one of the corners of the Open Cloud Park in the exhibit hall with our partners CloudWeavers and ViApps. We will also have a kiosk there to demo the new vOneCloud.
  • VMworld Europe in Barcelona, 13-15 October 2015, where we will have a booth to demo the VMware support in OpenNebula and the new vOneCloud.

Open Cloud Community Events

You can help us spread our word. Speaking at a technical conference is an excellent way to share your experiences and participate in the community. We can provide different types of support, like review your talk or promote it through our blog and social instruments. You can use any material available at this site.

We strongly encourage you to submit talks for all open cloud community events. Join our community discuss mailing list if you are interested in speaking about OpenNebula. The latest presentations are available at the OpenNebula SlideShare account.

We are planning to participate in the following events (CFP is open for some of them):

OpenNebulaConf 2015

In a few weeks we will announce the date and venue for our anual community conference. Stay tuned!.

Cloud TechDays

We are organizing the 2015 schedule of TechDays, send us an email or send it to the community discuss mailing list if you are interested in hosting a TechDay event. We also look forward to proposals to create a user group in your area.

OpenNebula Training

We have just published the schedule for 2015 public classes at OpenNebula Headquarters. Please contact us if your would like to request training near you.

Only a Few Days Left for OpenNebulaConf 2014!

This edition of the conference is just around the corner, happening next 2-4 December in Berlin. If you are interested in attending the conference, we entreat you to register swiftly, since only a few seats are left.

1. An Amazing Speaker Lineup and Agenda

This year’s edition of the international OpenNebula Conference is packed with an amazing agenda. If you want to learn about Cloud Computing in general, and OpenNebula in particular. If you are familiar with the software or even an active user or contributor to the project, willing to hear and learn how other members of the community bend OpenNebula for their infrastructure needs, this is the place to be!

Take a look at the highlights from the final agenda:

2. Hacking Workshop and Hands-on Tutorial of the Brand-new OpenNebula 4.10

Besides its amazing talks, there are multiple goodies packed with the OpenNebulaConf registration. Lightning talks, a hands-on tutorial, and meeting OpenNebula users and developers are some of the treats you are in for if you are attending the conference.

One of the major benefits is the possibility to attend an OpenNebula tutorial the day before of the conference. This 3-hour tutorial is included in the registration, so everyone is welcome to attend it. The tutorial is intended for devops and system administrators interested in deploying a private cloud solution, or the integration of OpenNebula with other platforms.

For those that already master OpenNebula, we are organizing a Hacking session that is meant for people that already has OpenNebula deployed and knows how to use it. You can catch up with OpenNebula developers and have conversations that are a bit hard to have in the mailing list. It is also a great place to meet other people that may be doing similar things or have already sorted out some of the problems you may have.

3. Social Event

Right on the riverside, in a beautiful part of Berlin, you can find the old dairy farm with its historic atmosphere. You can experience the most beautiful and varied shades of nature, associated with the four seasons with them.

Last year’s conference was an absolute success, with fruity presentations of long time users of OpenNebula, and with various use cases that, we can confess, largely surprised the OpenNebula team for their artfulness. It is always a pleasure to see how people are using OpenNebula.

See you in Berlin!

OpenNebulaConf2014: Practical experiences with OpenNebula for cloudifying a SaaS by Deloitte’s Tim Verhoeven

Tim Verhoeven, lead architect for a Business Intelligence and Analytics SaaS cloud platform at Deloitte Consultin, will give a keynote entitled “Practical experiences with OpenNebula for cloudifying a SaaS” in the upcoming OpenNebulaConf 2014 to be held in Berlin on the 2-4 of December.

Tim will speak about how his team manages a SaaS platform for Business Intelligence and Analytics applications using a diverse set of middleware (mostly IBM). However the original setup of this platform was not done using a cloud architecture. In this talk they describe the reasons for selecting OpenNebula. The architecture of the new setup. The process of migrating to that new setup and the lessons they learned during that process and in the daily operation of the platform. And finally this talk will also cover their vision for the next step which is to move towards a hybrid cloud setup.

Tim currently works for Deloitte Consulting in Belgium as the lead architect for a Business Intelligence and Analytics SaaS cloud platform. Tim Verhoeven is been involved in IT Infrastructure for more then 10 years and in these years gathered experience with Linux, networking, servers, storage and the tools and processes to deploy, manage and monitor these infrastructures.
Do not miss this talk, register now, only a few seats are left!

OpenNebulaConf2014: Puppet and OpenNebula by Puppet Labs’ David Lutterkort

David Lutterkort, Principal Engineer at Puppet Labs, will give a keynote entitled “Puppet and OpenNebula” in the upcoming OpenNebulaConf 2014 to be held in Berlin on the 2-4 of December.

This talk will show how Puppet can be used by adminsitrators to manage OpenNebula hosts, and by users to manage their infrastructure as well as how to use Puppet during image builds. Many facets of using an IaaS cloud like OpenNebula can be greatly simplified by using a configuration management tool such as Puppet. This includes the management of hosts as well as the management of cloud resources such as virtual machines and networks. Of course, Puppet can also play an important role in the management of the actual workload of virtual machine instances. Besides using it in the traditional, purely agent-based way, it is also possible to use Puppet during the building of machine images. This serves two purposes: firstly, it speeds up the initial Puppet run when an instance is launched off that image, sometimes quite dramatically. Secondly, it supports operating immutable infrastructure without losing Puppet’s benefits to organize and simplify the description of the entire infrastructure.

David is a principal engineer at Puppet Labs and the technical lead for Puppet Labs’ development of Razor. Before joining Puppet Labs, David worked at Red Hat on a variety of management tools and served as the maintainer of Apache Deltacloud. He was one of the earliest contributors to Puppet, and is the main author of the Augeas configuration management tool.

Do not miss this talk, register now, only a few seats are left!