Aleksei Sviridkin
9ace63b441
The sandbox Talos config and the platform install step both used 10.244.0.0/16, one as the Kubernetes cluster CIDR and the other as the kube-ovn POD_CIDR, so two allocators drew from one range. kube-ovn owns pod IPAM and allocates flat from POD_CIDR. Cilium is chained behind it and allocates no pod addresses, but it still carves its own per-node router IP and Ingress IP out of Node.spec.podCIDR, which kube-controller-manager slices from the cluster CIDR. Sooner or later kube-ovn hands a pod an address cilium already holds. When that address is the Ingress IP the agent refuses the sandbox with "IP ipv4:<addr> is already in use", and cilium never relents on it, so the pod only proceeds if something reschedules it onto a different address. In the failure this comes from, the same address was refused seven times across six pod UIDs before the suite ran out of budget. When it is the router IP nothing complains at all and only host-to-pod traffic breaks. Move the cluster CIDR to 100.65.0.0/16, which no other range in the tree uses. That deliberately stops the sandbox matching the layout the install documentation prescribes, so it is not a value to put back. Pod addresses are unaffected: they still come from kube-ovn out of 10.244.0.0/16, and cilium does not require a chained endpoint's address to sit inside its own allocation CIDR. Excluding the addresses on the kube-ovn side would not work, because cilium picks its offsets by random scan over the node's range. The new guard checks the invariant rather than the literals, so either value may move as long as they stay disjoint. It covers the service and join ranges too, since landing on one of those instead is the next way to get this wrong. Assisted-By: Claude <noreply@anthropic.com> Signed-off-by: Aleksei Sviridkin <3811295@gmail.com>
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
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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 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 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 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.