The closest thing to a private AWS — Nova compute with a real filter/weigher scheduler, Neutron SDN, Cinder block, Glance images, Keystone IAM, Horizon UI, multi-tenancy and quotas done properly, scaling to thousands of nodes. And the honest other half: notorious operational complexity, thirty-plus services, and a learning curve survivable only via a deployment tool. When the power is worth the pain, and when it absolutely is not.
Openstack
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OpenStack: The Full Reference Cloud (and What It Costs You) -
Private Cloud Showdown: Picking the Right Platform The finale of the private-cloud series: a head-to-head scorecard across OpenStack, CloudStack, OpenNebula, Harvester, Incus/LXD, XCP-ng, oVirt, Proxmox, and MAAS — rated on setup effort, scheduler quality, SDN, storage and Ceph, multi-tenancy, UI/API maturity, and community health. Then concrete recommendations by scale (single-node homelab, a few nodes, SMB, enterprise), the honest 'just use Proxmox' and 'just pay for vSphere/Nutanix' cases, realistic migration paths, and the total-cost-of-ownership reality the demo never shows.
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Private Cloud on Your Own Hardware: Replicating AWS and Azure On-Prem What you are actually trying to rebuild when you want AWS at home — self-service, an API, a scheduler that places workloads, software-defined networking and storage — and a map of the open-source platforms that get you there, plus where VMware and Nutanix now sit after Broadcom.