Welcome to our newsletter! Dive into this edition to catch up on our latest updates, event highlights, future plans, and more.

Technology

This month, we’re bringing you a series of important updates and new capabilities for OpenNebula users. Check out our latest blog for details on:

• CAPONE 0.1.0 – Cluster API for OpenNebula: A new integration that simplifies Kubernetes cluster management within OpenNebula environments.
• OpenNebula 6.10.3 Maintenance Release: Includes NVIDIA vGPU support for Ubuntu 24.04, improved snapshot management, optimized NIC configuration, and more efficient incremental backups.
• First Beta Release of OpenNebula ARM Packages: Expanding support for ARM-based servers, particularly for edge computing use cases. We welcome community feedback.
• OneDeploy 1.2.1: Brings enhancements such as transparent proxy support, improved security, and automated deployment of OneProvision WebUI.

Additionally, we’re introducing a new AI integration, making it easier to deploy and manage Large Language Models (LLMs) from Hugging Face and vLLM on OpenNebula-powered infrastructure. Learn how OpenNebula accelerates AI training and inference in our latest blog post. Looking ahead, OpenNebula 7.0, launching in April 2025, will introduce highly requested features such as Distributed Resource Scheduler (DRS), integrations with top backup and storage vendors, improved OVA support, cross-cluster migrations, and an enhanced VNC console—key functionalities for VMware users planning their migration. Learn more here.

📡 MESSAGE FROM THE ENGINEERING DECK
Oven is at max throttle, OpenNebula 7.0 is baking at a good pace and with a large number of new ingredients! Without a doubt one of the most innovative releases in its over 17 years of life, 7.0 will bring new functionality to backups, storage, OVA support, DRS-like functionality, improved UX and many more! Stay tuned for the beta, it’s around the corner!

Experiences

OpenNebula Reviews on Gartner

Discover what users are saying about OpenNebula on Gartner Peer Insights! This 5-star review highlights OpenNebula’s feature-rich and user-friendly cloud management, offering automation and flexibility that enhance operations and drive better business outcomes. Read the full review here.

Are you using OpenNebula? We’d love your feedback! Submit your review here, and as a thank-you, receive a gift card once it’s published.

Outreach

Webinars

In February, we hosted two product webinars and two training sessions. The first webinar covered VMware migration — if you missed it, the recording is available. We also explored how OpenNebula implements the “AI as a Service” model for LLMs in another webinar, which you can watch here. Our training series included a session on the basics of operating OpenNebula, with the recording available for those who couldn’t attend, followed by a training focused on running a Kubernetes environment with the OpenNebula Kubernetes Engine appliance, which you can also access here.

Techday Bilbao

On February 21, we hosted a TechDay in collaboration with IKERLAN, bringing together experts to discuss AI, next-generation cloud infrastructures. Stay tuned for a full recap.

Techday Barcelona

Our latest TechDay took place in Barcelona on February 25, bringing insightful discussions on how OpenNebula stands as a strong alternative to VMware, enables multi-cloud strategies, and drives innovation, including AI-powered cloud deployments. Thanks to all who joined us—stay tuned for the full recap!

Call to Host a TechDay

We invite you to organize one of our TechDays. If you and your company are passionate about open source and cloud technology and want to share your knowledge with a vibrant community of professionals, developers, and tech enthusiasts, this opportunity is for you. Learn more about how you can help promote OpenNebula by hosting a TechDay.

State of Open Con 2025

Francisco Picolini was a speaker for this major community event in London. He explored open source’s role in digital sovereignty in Europe, focusing on the IPCEI-CIS project and sovereign multi-cloud solutions. Learn more about his presentation here.

FOSDEM Recap 

We participated in FOSDEM, one of the largest community-driven events for developers worldwide, welcoming professionals of all backgrounds and skill levels. If you missed any sessions, check out our latest blog post for links to all the recordings.

What’s Coming in March (and April!)

Webinars

We have four upcoming webinars this March, including:

• Effortless Kubernetes Cluster Management with CAPONE—March 5 at 5 PM CET. Learn more and register here.
• An Introduction to OpenNebula Operations—March 12 at 5 PM CET. Learn more and register here.
• Unlocking OpenNebula 7.0: A Sneak Peak—March 19 at 5 PM CET. Learn more and register here.
• Multitenancy in OpenNebula—March 26 at 5 PM CET. Learn more and register here.

MWC 2025 in Barcelona, Spain

OpenNebula will be attending MWC Barcelona 2025 with two exhibition booths, from March 3–6, and we would be thrilled to meet you there and demonstrate how to migrate away from VMware:

• Interested in Re-Virtualization? Let’s schedule a meeting to dive deeper into how OpenNebula is transforming network infrastructure.
• Curious about how OpenNebula can support your AI workloads? Stop by our booth and connect with our team to explore our solutions. Schedule a meeting here.

CloudFest in Europa-Park, Germany

We will be at CloudFest 2025 from March 17-20 in Europa-Park, Germany. Visit us at booth R34 to explore OpenNebula 7.0, featuring AI-driven innovations and learn why it’s the ideal VMware alternative. Schedule a meeting here.

NVIDIA GTC in San José, USA

We will be at NVIDIA GTC from March 17-21 to discuss how OpenNebula’s latest innovations are redefining AI cloud infrastructure to enable AI Factories. Don’t miss the chance to explore how we can help elevate your cloud infrastructure. Let’s connect—schedule a meeting here. 

Data Center World in Washington D.C., USA

If you’re attending the Data Center World event in Washington D.C. from April 14 to 17, we invite you to visit us at Booth 685. Discover firsthand how our solutions can transform your IT environment and replace VMware. To schedule a meeting and learn more, read our latest blog.

OpenNebula Academy

A quick reminder that we offer certified training sessions for all skill levels. These sessions provide valuable hands-on experience to enhance your OpenNebula expertise and advance your career. The next sessions are coming up in April—register here!

Knowledge Base Articles

Exclusive Resources for OpenNebula Subscribers

In cloud environments, VMs can sometimes become unresponsive or fall outside OpenNebula’s control, affecting operations and resource efficiency. Identifying and addressing these cases is key to maintaining a stable infrastructure.

Handling Unmanaged VMs in OpenNebula

In OpenNebula, unmanaged VMs typically fall into three categories:

• Zombie VMs: launched by OpenNebula but no longer managed, often due to database inconsistencies.
• Wild VMs: running outside OpenNebula’s control but can be partially imported.
• Ghost VMs: created in OpenNebula but inaccessible, sometimes due to metadata issues.

Learn how to detect and recover these VMs in our detailed guide on managing zombie, ghost, and wild VMs.

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