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OpenStack vs VMware: what actually changes

A practical comparison for teams weighing a move off vSphere: what OpenStack gives you, what it asks of you in return, and how edgeContinuum turns it into a self-service cloud instead of a second operations project.

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Who provisions: your teams, not a ticket queueWhat the meter counts: managed resources, not coresWho runs day two: the platform reconciles, you consume
The same layers, two operating models
vSphere
OpenStack
Self-serviceA ticket to an adminteams wait for a VM
Self-serviceedgeContinuum
KubernetesPostgreSQLVMs
teams provision inside quotas
ManagementvCenteran admin console
ManagementKeystone and APIsprojects, roles, quotas
VirtualizationESXilicensed per core
VirtualizationNova, Neutron, Cinderopen source
Same servers under either stack

The comparison is not feature by feature

Most OpenStack vs VMware comparisons line up hypervisor features and stop there. In practice the two stacks differ in three things that matter more: who is allowed to provision, what the licence meter counts, and how much operations work the platform hands back to you. vSphere is a mature virtualization stack with an admin-centric console, licensed by CPU. OpenStack is an open, API-first cloud that gives you tenancy, quotas and programmable infrastructure, and asks for real operational skill in exchange. edgeContinuum exists to settle that last point: it manages the OpenStack layer for you and puts a self-service cloud on top, so the move buys you the open foundation without buying a platform project. The full picture of what that adds is on the OpenStack management platform page.

Three axes that actually decide it

Comparing OpenStack and vSphere feature by feature produces a tie and tells you nothing. The decisions that matter are about who does the work and what the meter counts. If the direction is still open, the VMware alternatives shortlisting guide works through the four routes first.

An admin provisions on request
Teams provision inside quotas you setThe console, the API and Terraform all reach the same platform, and the guardrails are organizations, projects, roles and quotas rather than a ticket queue.
The licence meter counts cores and sockets
The subscription counts managed resourcesA cluster, a database or a VM is one managed resource, independent of vCPUs, cores or users, and the same in SaaS or fully air-gapped.
Your team operates the stack
The platform reconciles it, your team consumes itUpgrades, autoscaling, healing and database lifecycle run from declarative desired state, so day two stops being a rota.
Operability

The honest gap, closed

The real objection to OpenStack is not capability, it is day two: keeping the control services healthy, upgrading them, and giving users something friendlier than raw APIs. edgeContinuum manages that layer. Declarative desired state (Cluster API, Crossplane) drives the infrastructure continuously, so upgrades, scaling and recovery are automated, and every resource is one console away.

Automated upgradesSelf-healingNo configuration driftOne console
Day two, run by the platform
Desired stateCluster API, Crossplane
1You declarea cluster, a database or a VM
2Platform compareswith what runs on OpenStack
3Platform convergesupgrades, scaling, recovery
What you gain

Tenancy, services and sovereignty

Moving to open infrastructure is worth more when the platform on top gives you things vSphere never sold you: structural multi-tenancy with usage tracked per tenant, managed databases, and a deployment model that reaches from hosted SaaS to a fully air-gapped site without changing product.

Organizations and quotasManaged PostgreSQLAir-gap capableEU-built

Multi-tenancy

Organizations, projects, roles and quotas enforced by IAM.

Managed PostgreSQL

Provisioned, highly available, lifecycle handled.

Regions and zones

Several infrastructures shaped into one platform.

Sovereignty

Your perimeter, your data, EU-built and supported.

Compare it against your own estate

Book a call and we’ll walk your vSphere inventory through the ladder above, or request a free trial and provision managed services on a lab OpenStack in minutes.

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Frequently asked questions

Is OpenStack really production ready?
Yes, and it has been for years: it runs public clouds, telco networks and research infrastructures at scale. The question worth asking is who operates it. With edgeContinuum the platform manages the OpenStack layer and exposes managed services on top, so your team consumes it instead of running it.
Do we lose vSphere features we depend on?
Some things have different names and different shapes: OpenStack has its own model for networking, volumes and availability. In our experience the workloads move, and the operating model changes more than the capability list. A short discovery call is the fastest way to check your specific dependencies.
Can we run both stacks during a transition?
Yes. edgeContinuum connects to the OpenStack you stand up and manages that side, while your remaining vSphere estate keeps running as-is. Sites and infrastructures are shaped into platform regions and zones, so you can move workload by workload.
How is this priced compared with a vSphere renewal?
A subscription per resource managed through the platform (clusters, databases, VMs), independent of cores, sockets or users. Denser hardware improves your unit economics instead of raising the bill.
Is OpenStack cheaper than VMware after Broadcom's licensing changes?
It usually is, but the saving is not where people expect. OpenStack itself has no licence cost, so the comparison is really your VMware subscription against hardware you already own plus whatever you spend operating the stack. That second number is the one that decides it. Running OpenStack yourself trades a licence bill for a platform team. Running it with edgeContinuum trades it for a subscription per managed resource, which does not move when you add cores to a host or users to a project, so growing the estate is a capacity decision rather than a licensing one.
What does OpenStack not do that vSphere does?
Out of the box, OpenStack gives you compute, storage and networking primitives and an operator-facing dashboard in Horizon. What it does not ship is the layer above: no self-service catalog your teams would enjoy using, no managed Kubernetes or managed databases as products, no tenancy model richer than projects, and no lifecycle automation for the services running on top. vSphere does not ship most of that either, which is why VMware sold vRealize, Tanzu and the rest alongside it. The gap is real in both cases; the question is whether you close it with a bundle, with a platform team, or with a managed layer.
Can we run OpenStack and vSphere side by side during a transition?
Yes, and most estates do for a while. The two stacks coexist on separate hardware or separate clusters, and workloads move in waves rather than in one cutover. edgeContinuum manages the OpenStack side from day one, so the part you have already moved gets self-service, managed Kubernetes and managed PostgreSQL while the rest of the estate stays where it is. Our engineers work the sequence with you, usually starting with the workloads whose renewal pressure is highest.
Who operates OpenStack if we do not have an OpenStack team?
That is the question that decides most of these projects, and there are three honest answers. You hire or build the team, which is real headcount and a long ramp. You buy a distribution and support contract, which helps with the infrastructure layer but still leaves the self-service and managed-services layer to you. Or you run it with a managed layer on top, which is what edgeContinuum does: your operators keep their existing OpenStack tooling and Horizon, and the platform takes over provisioning, upgrades, autoscaling, healing and database lifecycle through declarative desired state.

Keep exploring

Do you need more than OpenStack?VMware alternativeOpenStack management platformKubernetes on OpenStackProduct tourCompare platformsResourcesVMware migration guide