How LINSTOR and DRBD Keep Your Data Alive When a Server Dies
How Cozystack uses LINSTOR and DRBD for synchronous block-level replication on bare metal: setting up storage pools, the replicated StorageClass, and what happens when a node fails.
Article type: Tech-Article
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.
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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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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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The Evolution of Virtualization Platforms: The Rise of Managed Services and Local Providers’ Edge…
Hello everyone! I’m Andrey Kvapil, CEO of Ænix and developer of Cozystack, an open-source platform and framework for building cloud…
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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…