Cloud platform for hosting providers — modernize beyond VPS, launch cloud products

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Open-source Cozystack (CNCF project, created by Ænix) → Ænix Public Cloud, Private Cloud and AI Platform → Ænix builds, operates and migrates them.

A cloud platform for hosting providers lets a traditional shared, VPS, or dedicated-server business launch hyperscaler-class cloud products while keeping its direct customer relationships, pricing flexibility, and margin. Ænix delivers this with Cozystack, an open-source Kubernetes-native CNCF Sandbox project Ænix created and co-maintains, that runs VMs (via KubeVirt) and containers on one API, with Cilium eBPF networking, LINSTOR/DRBD storage, and Tenant-CRD multi-tenant isolation. It is productized as Ænix Public Cloud Platform (live in weeks via the productized installer once hardware is ready), with WHMCS-integrated billing, tenant lock and suspension, a service catalog beyond VMs (managed databases, S3, GPU), and migration tooling from VMware, OpenStack, and Virtuozzo. Apache 2.0 licensing means no per-CPU fees, so hosting margin is preserved.

Quick facts

  • What it is An open-source, Kubernetes-native cloud platform that lets hosting providers launch multi-tenant cloud products beyond VPS, built on Cozystack and productized as the Ænix Public Cloud Platform.
  • Licence Apache 2.0 (no per-CPU / per-core licensing)
  • Status Cozystack is a CNCF project (Sandbox since 2025-02-28; Incubating application in due diligence)
  • Who it is for Traditional hosting providers, regional and sovereign cloud providers, specialty hosting (gaming, AI, financial services), and bare-metal-as-a-service providers.
  • Key capabilities Tenant-CRD multi-tenancy, WHMCS billing integration (two modes), service catalog covering VMs, containers, managed databases, S3, and GPU, plus migration tooling from VMware, OpenStack, and Virtuozzo.
  • Underlying technology KubeVirt for VMs and containers on one Kubernetes API, Cilium (eBPF) networking, LINSTOR/DRBD storage.
  • Commercial entry Support tiers from $1,250 per 10 nodes per month (Basic, billed annually), white-label configuration support from Standard ($3,000); Partner Program offers up to 40% margin on platform subscriptions and support.

Hosting providers in 2026 face customer demand for cloud capabilities competitive with hyperscalers but with the customer-relationship advantages and pricing flexibility that hosting providers already have. The architectural answer is a Kubernetes-native platform with multi-tenant customer isolation, billing integration, and a service catalog beyond VMs — Cozystack’s design center.

Pairs with: Ænix Public Cloud Platform — modern alternative to OpenStack for hosting providers. WHMCS-integrated billing, tenant lock/suspension, fast feature delivery, productized installer, migration tooling from VMware/OpenStack/Virtuozzo (Virtuozzo migration). Selling cloud from VMware Cloud Director today? See the VMware Cloud Director alternative for service providers. Support tiers from $1,250 per 10 nodes per month; white-label configuration support from Standard ($3,000). Hosting providers running it in production: GoHost.kz, HDReady, Beby Cloud, HiKube, UseTech, Cloupard, Cloudsy. See Partner Program for up to 40% margin on resold engagements.

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See the customer portal for yourself. The live demo shows the Ænix Public Cloud Platform customer portal and operator back-office (switch to Admin to see clients, invoices and pricing), running entirely in your browser with demo data — no signup, no cluster, no setup.

Model the business first. The hosting-provider unit economics calculator estimates revenue and payback, and the Launch your public cloud webinar walks through a provider launch. Cloud product leads can start with the head of cloud guide.

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Who’s in the audience

  • Traditional hosting providers (shared, VPS, dedicated server) modernizing
  • Regional cloud providers serving local sovereignty mandates
  • Specialty hosting providers (gaming, AI, financial services)
  • Bare-metal-as-a-service providers

What hosting providers come to us for

  • Modernization from VPS to cloud product — multi-tenant Kubernetes-native platform
  • Service catalog expansion — VMs + containers + managed databases + S3 + GPU on one platform; for selling GPU capacity see GPU as a service
  • WHMCS integration — production-ready, two integration modes
  • Customer-facing portal — Cozystack Dashboard customizable per provider
  • Sovereign cloud product launches — for regional markets

For sales-led engagement see public cloud builder and white-label cloud.

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Why Cozystack fits hosting providers

  • Multi-tenant Tenant CRD — production-grade customer isolation
  • WHMCS integration — two modes (WHMCS as the customer-facing front, or Cozystack Dashboard as the front with WHMCS as the billing back-end)
  • Open-source platform — no per-CPU licensing, hosting margin preserved
  • Service catalog — far beyond VMs (managed DBs, S3, GPU)
  • Operational simplicity — single platform, single team
WHMCS billing
Two integration modesTenant lock/suspension
provisions through
Ænix Public Cloud Platform
Cozystack DashboardMigration tooling
exposes
Cozystack service catalog
VMsManaged databasesS3GPU
isolates customers via
Tenant CRD
Production-grade isolation

Production references: regional hosting providers running Ænix Public Cloud Platform. Closest written-up case: a provider running a commercial public cloud across three data centres.

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Ænix created Cozystack (CNCF Sandbox project) and co-maintains it with maintainers from other companies.

Frequently asked questions

Why would a hosting provider move from VPS to a Kubernetes-native cloud platform?

Customers increasingly expect cloud capabilities competitive with hyperscalers — managed databases, object storage, GPU, and self-service. A Kubernetes-native platform adds these as a single service catalog while the provider keeps its direct customer relationship and pricing flexibility.

Does Cozystack support both virtual machines and containers?

Yes. Cozystack uses KubeVirt to run VMs and containers on one Kubernetes API, so a provider can serve traditional VM customers and modern container workloads from the same platform and operations team.

How does billing integration work for hosting providers?

The Ænix Public Cloud Platform includes WHMCS integration in two modes: WHMCS as the customer-facing front, or Cozystack Dashboard as the front with WHMCS as the billing back-end. It also supports tenant lock and suspension tied to billing status.

Is there per-CPU or per-core licensing?

No. Cozystack is Apache 2.0 licensed, so there is no per-CPU or per-core fee. This preserves hosting margin compared with proprietary virtualization platforms that license by socket or core.

Can a provider migrate existing workloads from VMware, OpenStack, or Virtuozzo?

Yes. The Ænix Public Cloud Platform ships with migration tooling from VMware, OpenStack, and Virtuozzo, allowing providers to move existing customer workloads onto the new platform.

How is multi-tenant customer isolation handled?

Cozystack provides production-grade isolation through a Tenant CRD, giving each customer a bounded, isolated environment on shared infrastructure — the foundation for selling cloud products to many customers safely.

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