nebius / soperator

What it does

• Kubernetes operator. Define controllers, login nodes, workers, accounting, and storage in a single SlurmCluster resource. The operator keeps the cluster aligned with that spec.
• Portable deployment. It can run on AWS, GCP, Azure, Nebius, OCI, bare metal, and air-gapped environments, as long as the Kubernetes cluster meets the requirements.
• Jail (shared root filesystem). Login and worker nodes share one root filesystem, so package and configuration changes appear across the cluster without per-node drift.
• Preinstalled training stack. Images include NVIDIA drivers, CUDA, NCCL, nccl-tests, and common training dependencies, with an explicit CUDA-to-NCCL version mapping.
• Declarative maintenance. Upgrades, resizing, NodeSet changes, and configuration updates are driven by SlurmCluster changes instead of manual node work.