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## What this PR does Documentation: https://github.com/cozystack/website/pull/517 Integrates [HAMi](https://github.com/Project-HAMi/HAMi) v2.8.1 (CNCF Sandbox) into Cozystack as a system-level package for fractional GPU sharing in tenant Kubernetes clusters. The integration covers three layers: - **System chart** (`packages/system/hami/`): Vendors upstream HAMi Helm chart with device plugin, scheduler extender, mutating webhook, and RuntimeClass configuration. The broken DRA subchart was removed — it renders resources even when disabled and references unpublished images. - **Kubernetes app addon** (`packages/apps/kubernetes/`): HAMi exposed as an optional toggle (`hami.enabled`). Automatically disables GPU Operator's native device plugin when active to avoid conflicts. Enforces hard dependency on GPU Operator. - **Platform registration** (`packages/core/platform/`): HAMi declared as PackageSource with gpu-operator dependency, included in the iaas bundle. **Known limitation**: HAMi-core relies on a private glibc symbol (`_dl_sym`) removed in glibc 2.34, which breaks compute isolation on modern container images (Ubuntu 22.04+, PyTorch/TensorFlow official images). Alpine/musl is entirely incompatible. See the package README for details and upstream issue references. ### Screenshots N/A — no UI changes. ### Release note ```release-note feat(hami): add HAMi GPU virtualization as an optional system package for fractional GPU sharing. Enables memory and compute isolation for NVIDIA GPUs across tenant workloads. Integrates with GPU Operator and can be enabled per-cluster via the hami.enabled toggle. Note: compute isolation requires glibc < 2.34 in workload containers. ``` <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added HAMi GPU virtualization middleware as an optional cluster addon to enable fractional GPU sharing. * HAMi addon includes an enable toggle (default: disabled) and a customizable Helm values override; when enabled it enforces GPU Operator presence and adjusts GPU Operator values accordingly. * New HelmRelease integration for deploying HAMi with dependency ordering and conditional rendering. * **Documentation** * Added HAMi setup guide, compatibility notes, and updated cluster addon configuration reference. <!-- end of auto-generated comment: release notes by coderabbit.ai --> |
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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.
Use-Cases
-
Using Cozystack to build a public cloud
You can use Cozystack as a backend for a public cloud -
Using Cozystack to build a private cloud
You can use Cozystack as a platform to build a private cloud powered by Infrastructure-as-Code approach -
Using Cozystack as a Kubernetes distribution
You can use Cozystack as a Kubernetes distribution for Bare Metal
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.