We’re introducing a new, streamlined way to evaluate OpenNebula: deployment via the OpenNebula ISO.
This installation method offers a fast, consistent, and production-aligned sandbox environment, designed for users who want to experience OpenNebula in conditions that closely resemble real-world deployments. It complements the miniONE script while providing a more structured and enterprise-oriented starting point.
Whether you’re exploring OpenNebula for the first time, learning cloud operations, or preparing a small Proof of Concept (PoC), the OpenNebula ISO delivers a predictable, all-in-one installation with minimal manual configuration.
Two Ways to Deploy an OpenNebula Sandbox
Our Quick Start Guides now highlight two supported approaches for deploying a complete OpenNebula environment:
miniONE Script
A lightweight and flexible option for installing OpenNebula on an existing Linux system. It is well suited for laptops, testing labs, and cloud-based physical or virtual machines where speed and convenience are the priority.
OpenNebula ISO
A bootable image that installs AlmaLinux 9 and the OpenNebula Enterprise Edition directly on a bare-metal server. It provides a clean, opinionated setup with consistent defaults, making it ideal for structured evaluations and PoCs.
Both options enable rapid deployment. The ISO focuses on delivering a more realistic, enterprise-ready environment from day one.
Why Choose the OpenNebula ISO?
The OpenNebula ISO is designed for users who want a self-contained sandbox that reflects production architecture.
Integrated Installation
The ISO installs the operating system and OpenNebula components in a single guided workflow, ensuring a reliable and repeatable baseline without manual OS preparation.
Frontend and Hypervisor on a Single Host
The server is automatically configured as both the OpenNebula Frontend and a KVM hypervisor, allowing you to deploy and manage virtual machines immediately after installation.
Enterprise-Grade Networking by Default
BGP-EVPN with VXLAN is preconfigured using FRR, enabling network isolation and advanced virtual networking out of the box. This provides early exposure to the networking capabilities commonly used in production OpenNebula environments.
Built-in Management Utilities
The ISO includes onefemenu, a text-based management interface that simplifies essential post-installation tasks such as:
- Network configuration
- Firewall management
- Adding additional hypervisor nodes
- Retrieving credentials.
Requirements Overview
The OpenNebula ISO is designed for deployment on bare-metal servers, ensuring full virtualization support and optimal performance. Recommended specifications include:
| Recommended Setup |
|---|
| A recent CPU with virtualization enabled |
| At least 32 GiB of RAM |
| A dedicated disk (all existing data will be removed during installation) |
| One or more network interfaces (two recommended for more advanced scenarios) |
From Installation to First Workloads
After installation, a short post-installation workflow prepares the environment for use:
- Log in via the server console
- Configure networking and hostname using onefemenu
- Register the local KVM host with the OpenNebula Frontend
- Access the Sunstone web interface
- Create a VXLAN virtual network and deploy appliances from the OpenNebula Marketplace.
Within minutes, you’ll have a fully functional OpenNebula sandbox ready for hands-on exploration.
A Solid Foundation for Evaluating OpenNebula
The OpenNebula ISO provides a reliable and enterprise-aligned starting point for evaluation and PoCs. By removing setup complexity and standardizing the environment, it allows you to focus on what matters most: exploring OpenNebula’s capabilities, workflows, and architecture.
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