One front-end server can run your entire cloud: OpenNebula orchestrates KVM virtual machines and LXC containers across clusters of hosts, presenting everything through the FireEdge Sunstone web interface and a full API. Operators define VM templates once and instantiate them anywhere, attaching disks and networks, taking snapshots, scheduling actions, and opening remote consoles through Guacamole without leaving the browser. The OneDRS distributed resource scheduler reads historical and real-time metrics to predict demand spikes and migrate workloads before contention bites, with customizable policies and automation levels. GPU passthrough and PCI device hotplugging serve AI and accelerator workloads, while OVA import through the oneswap command ingests virtual machines exported from VMware vCenter for re-virtualization projects. Edge Clusters deploy on demand on premises or at remote providers, extending the same management model to hybrid and distributed sites without a separate stack. The 7.4 Helix release redesigns Sunstone with a slide-in side drawer and richer resource visualizations, and brings OneKS managed Kubernetes plus LVM storage to the Community Edition. Ceph and LVM datastores, incremental backups, cluster-level and generic quotas for resources like vGPUs, and OneFlow service orchestration for multi-VM applications round out daily operations. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Your racks of hypervisor hosts become one private cloud with Apache CloudStack, the open-source IaaS platform that deploys and manages large networks of virtual machines behind a single web interface and API. One cloud can mix hypervisors side by side, running KVM, XenServer or XCP-ng, and VMware vSphere clusters under the same control plane, each organized into regions, zones, pods, and clusters that mirror your physical datacenters and racks. Administrators provision instances from templates and ISO images, take volume and VM snapshots on schedules, and migrate running instances between hosts in a cluster without downtime. Built-in networking spans isolated and shared networks, VPCs with tiered virtual routers, load balancers with SSL offloading, VPNs, and firewall rules, all exposed both to admins and to end users through separate, customizable interfaces. Multi-tenancy is native: domains, accounts, usage metering, and resource quotas let providers bill departments or customers for what they consume. The 4.22 LTS release strengthens backup and disaster recovery, adds a CSI driver for CloudStack Kubernetes Service, and streamlines VMware-to-KVM migrations for teams consolidating onto open virtualization. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.