A cluster whose cozystack-controller predates the GPU binder cannot pick up GPUDevice by starting a second, newer instance: every reconciler is registered unconditionally, so the second instance runs its own copy of the workload, tenant, gateway and secret reconcilers next to the first. --gpu-only (with --enable-gpu) registers only the GPU binder, its webhooks and the probes; nothing else is set up, so no other informer or cache exists in that process. It is not meant to run beside a controller from this tree, which runs a binder of its own. --leader-election-id names the Lease instead of the fixed ID, whose default stays the historical one. A GPU-only instance that elects must name its own Lease: on the default one it would take leadership from the main controller in a shared namespace and stop all of its reconcilers while holding it. The logger is now set right after flag parsing, so this and the other flag refusals reach the pod log instead of exiting silently. Known limit of the pairing: the older controller's WorkloadMonitor still counts the GPUs KubeVirt requests on a virt-launcher pod, while the binder writes a usage record per device, so a VM covered by an application's WorkloadMonitor is counted twice until the main controller is upgraded. The manager wiring is now a list of named steps, so a test can assert which steps each mode runs without starting a manager. The image builds the command as a package, since it no longer fits in main.go. Assisted-by: LLM Signed-off-by: Aleksei Sviridkin <f@lex.la>
Cozystack
Cozystack is a free and open-source platform and framework for building clouds.
Cozystack is a CNCF Sandbox 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 to build your own platform
You can install only the Cozystack components you need on an existing Kubernetes cluster
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 are welcome to take on the fix yourself. Commits are used to generate the changelog, and their author will be referenced in it.
If you have a concrete feature request, open an issue. For a cross-cutting or architectural change, open a design proposal in the community repo. For questions or early ideas, use GitHub Discussions. See CONTRIBUTING.md for the full routing.
Community
You are welcome to join us in #cozystack, on either CNCF Slack (get an invite) or Kubernetes Slack (get an invite), in our Telegram group, and at our community meetings. Add them to your Google Calendar or iCal for convenience.
Project documents
| Document | What it covers |
|---|---|
| Governance | How decisions are made and who makes them |
| Contributor Ladder | How to grow from contributor to maintainer |
| Maintainers | Who maintains the project |
| Code of Conduct | What we expect of each other |
| Security Policy | Reporting a vulnerability, and which releases get fixes |
| Adopters | Who runs Cozystack in production |
| Roadmap | Where the project is going |
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.
