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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchNo VPS can be named the best supported option for OpenShift. Red Hat’s OpenShift Container Platform (OCP) 4.22 guidance for a user-provisioned cluster calls for several machines, with separate physical hosts for high availability, and a generic VPS plan is not listed as a supported platform. A single VPS can host a learning or test setup if its specifications meet the minimums and you accept that the result is an unsupported experiment. This article explains the requirements, what a single server can and cannot do, and how to check any candidate plan before you buy.
What OpenShift asks for
A standard user-provisioned OCP 4.22 cluster needs a temporary bootstrap machine, three control-plane machines and at least two compute machines. Red Hat states that separate physical hosts help maintain high availability. The table below lists the per-machine minimums from the Red Hat OpenShift Container Platform 4.22 documentation.
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| Machine role | Count | vCPU | RAM | Storage | IOPS |
|---|---|---|---|---|---|
| Bootstrap (temporary) | 1 | 4 | 16 GB | 100 GB | 300 |
| Control plane | 3 | 4 each | 16 GB each | 100 GB each | 300 each |
| Compute | 2 minimum | 2 each | 8 GB each | 100 GB each | 300 each |
These values are per machine, not per cluster. Adding them up gives a rough floor of 20 vCPU, 80 GB RAM and 600 GB of disk across six machines, counting the bootstrap machine while it exists. That total is arithmetic from the per-machine minimums, not a figure Red Hat publishes, and it ignores host overhead, the workload you plan to run and any growth in storage.
Red Hat highlights disk sensitivity and recommends faster storage, especially for etcd on the control-plane nodes. A plan that meets the vCPU and RAM numbers but offers slow or shared disk may still fail to install or run well, so storage is a separate check (see the checklist below).
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Can one VPS run OpenShift?
There are two different questions here: whether a single-node profile exists, and whether a multi-machine cluster can be packed onto one server.
Single Node OpenShift (SNO)
Red Hat documents Single Node OpenShift. The minimum profile in the OpenShift Container Platform 4.16 documentation is 8 vCPUs, 16 GB RAM and 120 GB of storage. The same guide states the trade-off: there is no high availability. Its support scope describes particular supported platforms and does not give blanket support to arbitrary VPS providers. The page’s publication date is not established in the sources reviewed, so treat these numbers as a starting point and confirm them against the documentation for the release you intend to install before you buy anything.
Several machines on one VPS
Running the bootstrap, control-plane and compute machines as virtual machines inside a single VPS is a common lab idea, but it removes the separation that Red Hat recommends for high availability. If all machines share one physical host, a single host failure takes out the whole cluster. It also requires the VPS to expose hardware virtualization to the guest machines (nested virtualization). None of the provider pages reviewed confirm that a specific VPS plan provides this, so you must verify it yourself before planning around it.
Which providers are worth checking
Two providers are worth evaluating for an OpenShift lab, but neither is endorsed as a best choice on the evidence available.
Hetzner Cloud
- Its FAQ says Hetzner Cloud uses KVM and lists the CPU families it offers.
- It describes NVMe local storage and ECC RAM.
- Its server overview separates shared-resource cloud servers from dedicated-resource servers, and dedicated instances have dedicated CPU resources.
- Its FAQ defines one dedicated-resource vCPU as one physical CPU thread.
These are useful selection criteria. None of the pages reviewed confirms OpenShift support, RHCOS boot compatibility or nested virtualization on a particular cloud server plan.
Vultr
- Vultr documents custom ISO uploads for Cloud Compute instances, which is relevant if you need to boot an RHCOS image yourself.
- It describes attached block storage in its product catalogue.
The pages reviewed do not confirm nested virtualization or OpenShift support on a specific Vultr instance. Custom ISO support shows only that the upload feature exists.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Checklist for judging any VPS plan
Work through these checks in order for each candidate plan, then read the installation documentation for your chosen OpenShift release.
| Check | What to confirm | Why it matters |
|---|---|---|
| Deployment shape | Whether you need one node for an experiment or several separate hosts for a general cluster | High availability depends on separation |
| Virtualization and boot path | Whether the exact plan exposes the CPU virtualization features you need, and whether you can install and boot the intended RHCOS image | Generic ISO support alone is not proof that installation will work |
| CPU allocation | Advertised vCPU count and whether CPU is shared or dedicated; how the provider defines a vCPU | vCPU labels are not comparable across vendors without checking definitions |
| Memory | Enough RAM per machine for its role, plus headroom for the host | Under-sized control-plane memory is a common reason for unstable labs |
| Storage | Required capacity, plus documented or measured IOPS and latency | etcd and the control plane are storage-sensitive; a provider does not meet Red Hat’s thresholds without plan-level evidence |
| Networking and access | Persistent addresses, DNS control, inbound and machine-to-machine connectivity, and console or recovery access | Installation fails quietly without correct name resolution and reachable ports |
| Support status | Whether the platform and installation method appear in the target release’s support matrix | Separates an experiment from a supportable deployment |
| Physical separation | Whether the provider places your machines on different physical hosts | Red Hat recommends separate physical hosts for the required machines |
Go or no-go for a candidate plan
- Go for a lab: the plan meets the per-machine minimums for your release, exposes the virtualization you need, lets you boot the RHCOS image, and gives you console access and stable addressing.
- Go with caution: the plan meets the minimums but you cannot confirm the storage IOPS, or you need several machines and the provider cannot confirm they run on separate hosts. Expect to rebuild if the cluster fails.
- No-go: the plan is below the minimums, offers no way to boot a custom image, or you need a supported, highly available production cluster on a single VPS.
Troubleshooting before you commit
- If the installer cannot see the virtual machines’ CPU features, check whether nested virtualization is available on the plan before changing the cluster design.
- If etcd reports slow disk writes, the storage does not meet the faster-disk guidance; move to a plan with better storage rather than adding vCPU.
- If the cluster works but a single host outage stops everything, that is the expected result of co-locating machines and is not a fault in the installation.
What is not established
No universal best VPS for OpenShift exists in the Red Hat documentation or the provider pages cited here. Neither source gives current plan pricing for OpenShift-suitable VPS plans, and none reports hands-on installation results on a particular provider. Confirm the exact plan, region, CPU architecture, boot workflow, networking and storage characteristics yourself before treating any provider as suitable.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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