OpenNebula Systems has published the schedule for public classes in 2017 at its offices in Madrid, Spain, and Cambridge MA, USA. This year, there are training sessions just after the OpenNebula Conferences in US and EU if you want to make the most of the trip to the conference.
The course about OpenNebula Fundamentals: Cloud Operator and Architect uses a hands-on lab atmosphere to provide IT professionals with the skill-sets they need to install, configure and operate OpenNebula deployments. Additionally the program briefly addresses the integration of OpenNebula with other components in the data center.
You can contact OpenNebula Systems if your would like to request public training near you or private on-site training.