Aleksei Sviridkin 91efa1f4eb feat(platform): auto-wire KubeVirt host-device support when gpu-operator is enabled
When cozystack.gpu-operator is in bundles.enabledPackages, the platform
now mirrors the chosen GPU variant into the KubeVirt CR — the HostDevices
feature gate is appended to developerConfiguration.featureGates, and a
starter permittedHostDevices block is filled from a per-variant defaults
table. Without this, a passthrough-variant GPU shows up under
.status.allocatable on the node but the KubeVirt admission webhook
rejects every VM that references it as a hostDevices.deviceName.

Two defaults tables ship under packages/core/platform/files/:

  - gpu-passthrough-defaults.yaml covers Hopper (H100/H200), Ada
    Lovelace (L4/L40/L40S), Ampere (A100 PCIe/SXM, A40, A30, A10),
    Turing (T4), Volta (V100/V100S). PCI vendor:device pairs are
    stable; resourceName slugs mirror nvidia-sandbox-device-plugin's
    <arch>_<model>_<form>_<mem> convention. externalResourceProvider
    is set on every entry because the resources are advertised by
    the sandbox-device-plugin DaemonSet, not by KubeVirt itself.

  - gpu-vgpu-defaults.yaml covers the Pascal-Ampere mdev profile
    range the upstream vgpu-device-manager walks /sys/class/mdev_bus/
    for. Ada Lovelace and Blackwell SR-IOV vGPU is out of scope for
    the chart's default list (NVIDIA driver path differs) and is
    expected to be advertised via the user-override hook below.

bundles.iaas.gpuOperatorVariant picks which table applies (default =
passthrough, vgpu = mediated). The same variant flows through to the
gpu-operator Package CR, replacing the previous always-default call.

Operators extend or replace the defaults via .gpu in platform values:

  gpu:
    replaceDefaults: false
    permittedHostDevices:
      pciHostDevices: [...]
      mediatedDevices: [...]
    mediatedDevicesConfiguration: {...}

replaceDefaults: false (the default) appends the user list to the
NVIDIA table; true drops the table entirely for clusters with only
non-NVIDIA accelerators or a strict allowlist requirement.

Companion helm-unittest suite covers the eight branches: no gpu
package emits no extras; gpu-operator at default variant emits the
HostDevices gate plus pciHostDevices; vgpu variant emits the
HostDevices gate plus mediatedDevices and mediatedDevicesConfiguration;
user overrides append by default; replaceDefaults wipes; unknown
variant fails fast.

Signed-off-by: Aleksei Sviridkin <f@lex.la>
2026-06-08 17:01:51 +03:00
2026-06-03 02:11:20 +00:00
2025-10-08 09:43:34 +05:00
2026-05-25 17:07:02 +03:00
2025-04-01 18:48:14 +02:00
2024-02-08 12:04:32 +01:00
2026-05-25 17:07:02 +03:00
2026-04-16 14:30:51 +05:00
2026-03-17 02:57:52 +05:00

Cozystack Cozystack

Open Source Apache-2.0 License Support Active GitHub Release GitHub Commit OpenSSF Best Practices

Cozystack

Cozystack is a free platform and framework for building clouds.

Cozystack is a CNCF Sandbox Level Project that was originally built and sponsored by Ænix.

With Cozystack, you can transform a bunch of servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Database-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.

Use Cozystack to build your own cloud or provide a cost-effective development environment.

Cozystack user interface

Use-Cases

Documentation

The documentation is located on the cozystack.io website.

Read the Getting Started section for a quick start.

If you encounter any difficulties, start with the troubleshooting guide and work your way through the process that we've outlined.

Versioning

Versioning adheres to the Semantic Versioning principles.
A full list of the available releases is available in the GitHub repository's Release section.

Contributions

Contributions are highly appreciated and very welcomed!

In case of bugs, please check if the issue has already been opened by checking the GitHub Issues section. If it isn't, you can open a new one. A detailed report will help us replicate it, assess it, and work on a fix.

You can express your intention to on the fix on your own. Commits are used to generate the changelog, and their author will be referenced in it.

If you have Feature Requests please use the Discussion's Feature Request section.

Community

You are welcome to join our Telegram group and come to our weekly community meetings. Add them to your Google Calendar or iCal for convenience.

License

Cozystack is licensed under Apache 2.0.
The code is provided as-is with no warranties.

Commercial Support

A list of companies providing commercial support for this project can be found on official site.

Languages
Go 48%
Shell 37%
TypeScript 6.9%
Go Template 5.3%
Makefile 1.4%
Other 1.2%