Network Isolation Between Tenants on Bare Metal: Cilium eBPF Policies, Plus Kube-OVN VPC
How Cozystack isolates tenants on bare metal by default with Cilium eBPF policies, plus optional Kube-OVN VPCs for workloads that need dedicated subnets.
Topic: Kubernetes
Cozystack vs OpenStack: An Honest Comparison for 2026
An honest, practical comparison of Cozystack and OpenStack across architecture, compute, networking, storage, managed services, operations, and multi-tenancy — and why a Kubernetes-native platform is a compelling OpenStack alternative for building a private cloud.
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etcd-operator Joins Cozystack with a New v1alpha2 API
The etcd-operator project has been donated to Cozystack, together with a from-scratch implementation under the new etcd-operator.cozystack.io/v1alpha2 API that drives etcd’s native Membership API instead of a StatefulSet.
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From Zero to kubectl in 5 Minutes — Managed Kubernetes on Your Own Metal
Deploy a production-grade Kubernetes cluster on your own hardware in minutes. Cozystack uses Kamaji, Cluster API, and KubeVirt to give you fully managed Kubernetes with autoscaling, Cilium CNI, and built-in addons — no cloud bill required.
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Flux-aio, Kubernetes mTLS and the Chicken and Egg Problem
How we solved the chicken-and-egg problem of deploying CNI and kube-proxy through Flux while ensuring Flux itself works without CNI and kube-proxy, using Kubernetes API routing and mTLS certificates.
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Cozystack v0.38: Virtual Private Cloud, VNC Console, Configurable Worker K8s Versions, and HTTPS Enforcement
Cozystack v0.38 introduces Virtual Private Cloud with Multus CNI, VNC console for VMs in the dashboard, configurable Kubernetes worker versions, and HTTPS-only enforcement for the API.
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Protofire Experience Operating Kubernetes with Cozystack
In a recent infrastructure transition that spanned several months, our team explored alternative container orchestration platforms to…
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CNCF Webinar: One API to Rule Them All — Building a Unified Platform with Kubernetes Aggregation
Speaker: Andrei Kvapil, Ænix CEO, Cozystack maintainer
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Cozyhr: How We Simplified Local Development with Helm and Flux
Hi! I’m Andrei Kvapil CEO of Ænix and developer of Cozystack, an open source platform and framework for building cloud infrastructure. In…
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Cozystack became a Certified Kubernetes Platform
We’re proud to announce: Cozystack has achieved Certified Kubernetes Platform status. Thanks to our community and especially to our good…
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How we built a dynamic Kubernetes API Server for the API Aggregation Layer in Cozystack
Hi there! I’m Andrei Kvapil, but you might know me as @kvaps in communities dedicated to Kubernetes and cloud-native tools. In this…
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Installing a Kubernetes Cluster Managed by Cozystack: A Detailed Guide by Gohost and Ænix
This article was written by Vladislav Karabasov from Kazakhstani hosting company gohost, therefore the narrative will be conducted in the…
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Cozystack v0.9: KubeVirt v1.2.2, Kamaji v1.0, Tenant K8s v1.30, and Node Group Upgrades
Cozystack v0.9 updates KubeVirt, Kamaji, Piraeus, and Cluster API, upgrades tenant Kubernetes to v1.30.1, and adds support for upgrading existing node groups.