Open Cloud Free Session – Opennebula Barcelona User Group



Date and Time: Mon, October 24, 2016 2:00 PM – 5:00 PM

OpenNebula Barcelona User Group is a gathering of our users in Barcelona area to share best practices, discuss technical questions, network, and learn from each other and enjoy. Direct Link

Taking advantage of the Opennebula conference in Barcelona, its user group in collaboration with the Opennebula project and CSUC organizes a free open cloud session to introduce the project, share new local developments and use cases with the community and any people interested in Open Cloud topics (Free Registration).

Agenda: (Free Registration -> Register here and reserve your seat)

14:00 Welcome/Bienvenida/Benvinguda
14:05 Opennebula Project: Open Cloud in essence – Dr. Ruben Santiago Montero (Chief Technical Officer & Co-Founder)
14:30 Cloud Bursting and VMware: New Opennebula VCLOUD driver  – Jordi Guijarro (Cloud & Security Manager – CSUC)
14:50 Barcelona Users Group
15:00 ACB League use case – Joaquin Villanueva (Director of Media Technology)
15:20 UPC Research Lab (RDLAB) use case – Gabriel Verdejo (IT Manager)
15:40 University of Valencia use case – Israel Ribot (System Administrator)
16:00 Coffee & Networking
16:30 EOF

Free Registration -> Register here and reserve your seat

ONEBCN Team in collaboration with CSUC

OpenNebula 5.2 ‘Excession’ Beta is Out!

The OpenNebula project is proud to announce the availability of the first beta release of OpenNebula 5.2 ‘Excession’. OpenNebula 5.2 (Excession) is the second release of the OpenNebula 5 series. A significant effort has been applied in this release to stabilize features introduced in 5.0 Wizard, while keeping an eye in implementing those features more demanded by the community.

As usual almost every component of OpenNebula has been reviewed to target usability and functional improvements, trying to keep API changes to a minimum to avoid disrupting ecosystem components. Also, new components have been added to enhance the OpenNebula experience.


One important new module is the IPAM subsystem. In order to foster SDN integration, a important step is being able to integrate OpenNebula with existing IPAM modules, in those cases where outsourcing of IP management is required in the datacenter. Fitting in the OpenNebula architecture design principles, the IPAM subsystem interacts with IPAM servers using drives, and as such a IPAM driver lets you delegate IP lease management to an external component. This way you can coordinate IP use with other virtual or bare metal servers in your datacenter. No default integration is provided, but rather to effectively use an external IPAM you need to develop four action scripts that hooks on different points of the IP network/lease life-cycle.

Another great addition in Excession is the ability to use group bound tokens. The goal is to be able to use OpenNebula for different projects, which are identified with different groups. For instance, the same user can use OpenNebula for “WebDevelopment” project and a “BioResearch” one, for instance. This user can request a couple of tokens tied to each of these groups. Upon login with the “WebDevelopment” token, she will only be seeing resources from that particular project, and all new resources (VMs, images, networks) will be created within that group, isolating them from the “BioResearch” group. This feature is available both in the CLI and Sunstone, with helpers and dialogs to create, maintain and use the tokens.


All the OpenNebula drivers have been improved for robustness. For instance, a new default timeout (which is configurable) has been defined to identify hanging operations and kill crashed processes. In this regard, the EC2 drivers has also been thoroughly revisited, being updated to the v2 of the aws ruby gem, ensuring compatibility with all Amazon EC2 regions. Error handling has been improved as well in the EC2 driver, adding operation retries to circumvent those situations where the EC2 API is not consistent, and adding improved logging.

Sunstone is the face of OpenNebula for both administrators and users, and hence a constant target of enhancements to improve usability. Excession brings to the cloud table stabilized features that were introduced in the Wizard maintenance releases, like for instances advanced searches (that now are maintained regardless of tab switching), labels colors and ergonomics, improved vCenter dialogs and import tables (now with feature à la Gmail), hyperlinks to access resources displayed in the info tabs, and many other minor improvements.


There are many other improvements in 5.2 like revamped group mapping in LDAP authentication -now being dynamic mapping-, rollback mechanism in failed migrate operations, significantly improved fault tolerant hook -to provide high availability at the VM level-, improved driver timeout, vCenter storage functionality wrinkles ironed out, more robust Ceph drivers -for instance, in volatile disks-, improved SPICE support, improvements in ebtables and Open vSwitch drivers, multiple CLI improvements -imrpved onedb patch, password handling in onevcenter command, default columns reviewed in all commands- and much more. As with previous releases, it is paramount to the prject to help build and maintain robust private, hybrid and public clouds with OpenNebula, fixing reported bugs and improving general usability.

This OpenNebula release is named after the Ian M. Banks novel, a recommended read, as well as having a fitting slang meaning, “something so technologically superior that it appears as magic to the viewer.”. We are confident that OpenNebula, if not really appearing as magic, at least solves elegantly your IaaS needs.

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.

The group token functionality and dynamic LDAP group mapping into OpenNebula groups were funded by BlackBerry in the context of the Fund a Feature Program.

Relevant Links

OpenNebula Conf 2016: Agenda Available

Screen Shot 2016-06-08 at 2.43.01 PM

The OpenNebula Project is proud to announce the final agenda and line-up of keynote speakers for the fourth OpenNebula Conference to be held in Barcelona from the 24 to the 26 of October. Guided by your feedback from previous editions, we have changed the traditional format of our conference this year and have included more community sessions to learn and network.


The agenda includes four keynote speakers:

Community Sessions 

We had a big response to the call for presentations. Thanks for submitting a talk proposal!. Although all submissions were of very high quality and merit, only a small amount of abstracts will be presented. Unlike previous editions, we will have a single track with 10-minutes talks, to keep all the audience focused and interested. We have given our very best to get the perfect balance of topics. We will have talks by Unity Technologies, StorPool, LINBITNetWays

Hands-on Workshops 

We will have four 90-minute hands-on workshops, where some of the key contributors to OpenNebula will walk attendees through the configuration and integration aspects of the main subsystems in OpenNebula:

  • Networking, NFVs and SDNs
  • Storage
  • Hypervisors and Containers
  • Security, Federation & Hybrid Hands-on Workshop

These hans-on sessions will also include 5-minute lightning talks focusing on one key point. If you would like to talk in these sessions, please contact us!

Pre-conference Tutorials 

This year we will have two pre-conference tutorials:

  • Introductory Hands-on Tutorial
  • Advanced Hands-on Tutorial

Besides its amazing talks, there are multiple goodies packed with the OpenNebulaConf registration. You are still in time for getting a good price deal for tickets. There is a 40% discount until July 15th.

Also, your company may be interested in the sponsorship opportunities for OpenNebulaConf 2016, there are still some sponsorship slots available. Current sponsors of the OpenNebulaConf 2016 include StorPool and LINBIT as Platinum Sponsor, NodeWeaver as Gold Sponsor and Terradue and Todo En Cloud as Silver Sponsor.

We are looking forward to welcoming you personally in Barcelona!.


OpenNebula 5.0 Call for Translations

Dear community,

As OpenNebula 5.0 comes closer, we would like to launch a call for translations of our web-based user interface: Sunstone.

It is very easy: the existing translations can be updated and new translations submitted through our project site at Transifex

Translations reaching a good level of completion will be included in the official final release of OpenNebula. Deadline for translations is Friday, 10th of June.

Thanks for your collaboration!

OpenNebula in OpenExpo 2016, Madrid

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!


Agenda for the Upcoming Cloud TechDay in Ede, NL

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!






More information
Register for this Event

Providing Enterprise-Grade Infrastructure In The Cloud Age

CipherSpace Logo




The “Cloud” Need Not Be A Commodity

CipherSpace has a heritage of providing managed ICT infrastructure and services to clients who need customized “enterprise-quality” solutions on small to medium-sized business scales. Historically this demanded versatility, so that we could both provide each client with the right solutions for them and also with the expertise and judgment to guide them in the choice of their best solutions. As a consequence, we have used many approaches to virtualization over the years: FreeBSD Jails, Parallels, VMWare ESX/ESXi, Citrix XenServer, and Linux KVM, as well as working with others in non-production testing and evaluation. Because we have diverse clients with services in technically close proximity to each other, security has always been a critical focus of our work. We also have a strong preference for open source software, based not only on the obvious cost advantage but also for its adaptability and more transparent (and historically better) security. We’re not OSS purists in any sense, but openness is an important feature of many solutions we offer, as is the availability of commercial support for critical instances of critical tools, both for ourselves and our customers.

It became clear to us in 2011 that “Cloud” architectures were maturing in a way which made it imperative for us to create our own suite of solutions that would serve our clients differently and better than what they could get from the commodity sector. Read more

NodeWeaver to Sponsor OpenNebulaConf 2016

OpenNebula Conf 2016 is getting closer and we would like to keep sharing with you the companies/projects that are sponsoring this year’s conference. Now it is time for NodeWeaver, as part of our Gold Sponsors.

nodeweaver-logo (1)
If you want to participate in OpenNebula Conf and meet NodeWeaver and other OpenNebula users, remember that you are still in time for getting a good price deal for tickets. Also, if your company is interested in sponsoring OpenNebulaConf 2016 there are still slots.

About NodeWeaver

NodeWeaver is a new kind of hyperconverged appliance-bringing together storage, networking and virtualization, completely self-managing and designed to be simple to operate and exceptionally reliable. We have chosen from the start to take advantage of the OpenNebula orchestrator as our main component, a choice driven by its simplicity, reliability and its open design and development process. Our choice has been demonstrated, over and over, an excellent one: OpenNebula simplicity has been extremely appreciated by our customers, and the modularity of its architecture substantially reduced the complexity of adapting and extending it. In three years of experimentation, and several mission critical deployments, OpenNebula has exceeded all our expectations.

Agenda for Upcoming Cloud TechDays in USA & Canada

We are pleased to announce the agenda for the upcoming Cloud Technology Days that will be held in April in USA and Canada:

They feature a 4-hour hands-on tutorial in which you will learn how to install and configure an OpenNebula Cloud from scratch, and presentations from community members and users.

The event in Dallas, TX is hosted by Improving, a complete IT services firm, offering training, consulting, recruiting, and project services. The event is also sponsored by Digital Ocean, a cloud infrastructure provider focused on simplifying web infrastructure for software developers. In addition to the hands-on tutorial that will be held in the morning we will have the following talks during the afternoon:

  • Javier Fontán from OpenNebula Systems will talk about Customizing Virtual Machine Images and Docker Machine and Swarm on OpenNebula


The event in Toronto, Canada is hosted by Canada151 Data Centers, which provides carrier neutral, highly redundant Colocation and Disaster Recovery services from their West Toronto facility.  The event is also sponsored by Solgenia, a Cloud technology provider specializing in SaaS, PaaS and IaaS solutions. In addition to the hands-on tutorial that will be held in the morning we will have the following talks during the afternoon:

  • Khoder Shamy from Fuze (formerly ThinkingPhones) will share how they leverage OpenNebula open-source project in the rapidly growing global private infrastructure at Fuze
  • Javier Fontán from OpenNebula Systems will talk about Customizing Virtual Machine Images and Docker Machine and Swarm on OpenNebula
  • Presentation about Canada151 Data Centers
  • Varadarajan Narayanan from Wayz Infratek will talk about Hyperconvergence and OpenNebula
  • Presentation about Solgenia Private Cloud and Data Centers

Throughout the day, Canada151 will be conducting tours of the data center for interested parties.


The event in Cambridge, MA is hosted by Harvard Research Computing, which was established in 2007 as part of the Faculty of Arts & Sciences (FAS) Division of Science in Harvard University with the founding principle of facilitating the advancement of complex research by providing leading edge computing services. In addition to the hands-on tutorial that will be held in the morning we will have the following talks during the afternoon:

  • John Noss from Research Computing at Harvard will talk about their experience with OpenNebula in Research Computing
  • Dan Kelleher from Research Computing at Harvard will talk abouth the Corona Project
  • Roy Keene from Knight Point will talk about OpenNebula: The Integrator’s Story
  • Jaime Melis from OpenNebula Systems will talk about Docker Machine and Swarm on OpenNebula
  • Javier Fontán from OpenNebula Systems will talk about Customizing Virtual Machine Images


Many thanks to Improving, DigitalOceanCanada151 Data Centers, Solgenia and Research Computing at Harvard University for hosting and sponsoring these events.

Looking forward to seeing you there, these are three community events you cannot miss! Seats are limited, register ASAP!

OpenNebula Dashboards with Graphite and Grafana

We at TeleData are operating several OpenNebula instances in our datacenters and offer public Cloud services like IaaS, PaaS and scalable Hosting and ISP-Services for our business customers in Germany.

A professional 24/7 monitoring our whole infrastructure is a substantially element for our customers. In this case technical solutions have to offer the ability to drill down the hierarchy to identify bottlenecks and do some crucial capacity management. Every OpenNebula user has to know his workload and has to plan his resources. At TeleData we use a N+1 redundancy to cover host errors and so on.

With this strategy you cannot allocate 100% of your available ressources and you have to monitor your current allocations. Also the possibility to identify your most loaded VMM hosts or your most utilized vDCs could be a valuable information to do system and resource management the right way.

In this little guide we will try to get some monitoring data in form of graphite metrics for further, deeper and last but not least, long-term monitoring.

We think it was quite easy to pull out the information of OpenNebula. Therefore we developed a little script which collects the wanted metrics and sends them to Graphite.

First a small diagram for a quick overview:

Diagram OpenNebula - Graphite - Grafana


Lets start.
(This guide assumes that you are already familiar with Graphite and Grafana)


  1. Gathering the wanted Information
    As advised in the OpenNebula Forum [1] we used the XML-Output of the common tools “onehost” and “onegroup” in the OpenNebula Controller/Daemon, executed by Cronjob every 5 Minutes. The script is Ruby based and uses common Gems like “nokogiri” for XML operations.
  2.  Send out metrics to Graphite
    The script generates Graphite metrics out of the desired information and pushes them to your Graphite server. Graphite stores the metrics according to your storage schema (the Syntax is Frequency:Retention)
  3.  Display / Graph your metrics
    With your time series data in Graphite you could use shiny tools like „Grafana“ [2] or „Dashing“ [3] to create informative and quite impressive Dashboards for your OpenNebula OPS Team. With some templating (included in our JSON-Exports)  you can unchain the power of Grafana.

See some examples:


All work is published at Github: one-graphite
If there are any questions or issues feel free to add your comment at the OpenNebula Forum [1].

In our opinion OpenNebula works like a charm. It is open and flexible. OpenNebula is one of the most mature, comprehensive and valuable Cloud-Stack available in the market. We mentioned that before:

Because of the lack of complexity it`s simple to enhance and to add features.
Of course our Graphite cluster is also powered by OpenNebula, like many other Services.

Have fun!