Kubernetes has become the standard platform for modern cloud-native applications, AI workloads, and scalable service delivery. But for many organizations, the real challenge is not deciding whether to use Kubernetes—it is making Kubernetes simple to consume, consistent to deploy, and manageable across private, hybrid, and distributed infrastructures.

To solve this challenge, we’re happy to announce the official release of OneKS (OpenNebula Kubernetes Service). Available for OpenNebula Enterprise Edition customers starting with version 7.2.1, OneKS provides a structured, automated way to create, access, scale, upgrade, recover, and retire Kubernetes (K8s) clusters while hiding the underlying infrastructure complexity from end users.

While OpenNebula is, and always will be, fully open source at its core, we regularly release specialized, high-value add-ons and enterprise-grade drivers for our Enterprise Edition to support production-scale operations. Following this model, OneKS joins our portfolio of enterprise-exclusive capabilities, delivering a highly reliable, fully supported Kubernetes-as-a-Service solution for demanding corporate environments. We deeply value the trust and support of our customers, whose commitment makes the continued innovation and long-term sustainability of OpenNebula possible.

How It Works

Built natively on RKE2 and integrated with the Cluster API (CAPI) framework through CAPONE (the dedicated Cluster API provider for OpenNebula), OneKS gives teams a highly repeatable way to deliver Kubernetes clusters inside OpenNebula environments.

Depending on your organization’s operational needs, users can interact with OneKS seamlessly via three entry points:

• The Sunstone Web UI for intuitive, graphical management
• The OneKS CLI for rapid command-line control
• The OneKS API for seamless integration into existing automation workflows

By combining OpenNebula, RKE2, Cluster API, and CAPONE, OneKS provides a standardized operational framework for Kubernetes lifecycle management without introducing unnecessary tooling complexity.

Key Capabilities

OneKS standardizes Kubernetes delivery and operations across OpenNebula environments through two primary pillars:

1. Simplified Lifecycle Management

OneKS reduces the operational burden associated with day-to-day Kubernetes management through centralized lifecycle controls:

• Elastic Capacity Scaling: Dynamically adjust cluster capacity by scaling worker node groups up or down based on real-time workload needs.
• HA-Ready Deployment: Choose between High Availability (HA) multi-node control planes for production workloads or cost-effective non-HA clusters for development at deployment time.
• In-Place Upgrades: Natively update cluster nodes to newer Kubernetes versions without needing to completely rebuild or destroy environments.
• Automated Recovery: Benefit from basic self-healing capabilities that detect and recover from common cluster failures automatically.

2. Reusable Cluster Profiles

Consistency is the ultimate defense against configuration drift. OneKS uses predefined Families and Flavors to make Kubernetes deployments entirely repeatable. Instead of requiring users to define every infrastructure detail manually, operators can expose standard cluster profiles tailored for different sizes, network topologies, and specific team needs.

Want to dive deeper? Check out our Kubernetes page to explore OpenNebula’s capabilities and watch our latest webinar.

Who Benefits from OneKS?

OneKS is engineered for enterprise teams requiring a simple, reliable, and predictable method to consume Kubernetes inside OpenNebula. It’s ideal for: 

• Private Cloud Self-Service: Empowering internal development teams to provision their own Kubernetes clusters on-demand without manual intervention from cloud administrators.
• Distributed & Edge Infrastructure: Standardizing how Kubernetes is delivered across fragmented, remote, or hybrid cloud environments.
• AI Factories & GPU-Accelerated Workloads: Enabling production-ready AI Factory deployments with Kubernetes clusters that can integrate cloud-native GPU orchestration capabilities for demanding AI and data-intensive workloads.
• Development and Testing: Spinning up complex, multi-node K8s environments instantly and tearing them down effortlessly.

With OneKS, OpenNebula Enterprise continues to expand its support for modern cloud-native infrastructure while preserving the operational simplicity of traditional virtualization environments. Organizations can run virtual machines and Kubernetes workloads side-by-side on a unified cloud and edge platform using consistent infrastructure, networking, and operational tooling.

Get Started

OneKS is now available for OpenNebula Enterprise Edition customers starting with version 7.2.1.

To learn more, explore the resources available on the OpenNebula Documentation Portal.

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