Aleksei Sviridkin
46ff481549
The binder re-checks what admission checked, and cozystack-api shows the remaining budget a later order is checked against; computing these in three places would let them disagree. The model is pure, so each caller builds a snapshot from its own cache. GPU budgets cap the whole subtree of the tenant that declares them, walked over the namespace ancestry and independent of the tenant quota pools. A raw GPU key blocks a class until the same tenant also declares a GPU key, and then caps claims and raw-name pods together. Pod usage follows the scheduler's arithmetic, sidecars included, so the binder never books a unit a raw-name pod holds. A node serves a class only when it is schedulable, Ready and carries no NoSchedule or NoExecute taint the class does not tolerate. The tolerations are the class's, because a claim is bound before the pod that will use it exists. The unschedulable, not-ready and unreachable taints are left to the first two checks, and a taint never counts as a cordon. Gt and Lt tolerations do not count, since the scheduler ignores them where their feature gate is off. Template claim names are derived from the VMI and shortened with a hash when the VMI name leaves no room, so they stay valid subdomains. 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
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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.