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.
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.
Cozystack introduces platform-managed backups: tenants declare what to protect, the platform handles where and how. One-shot jobs, scheduled plans, and point-in-time restore for Postgres, MariaDB, ClickHouse, and KubeVirt VMs.
Cozystack v1.4.0 brings a schema-driven dashboard, persistent worker-node storage for tenant Kubernetes, cloud-style resource presets, declarative backups for managed applications, HAMi-based fractional GPU sharing, a one-switch PROXY-protocol and hairpin-NAT fix, and operational improvements for upgrades, scheduling, and observability.
/cozystack:wizard is a new guided installer that orchestrates a full Cozystack deployment end-to-end across Talos, Ubuntu, and existing clusters — handling cert-SAN traps on NAT’d clouds, ZFS provisioning, LINSTOR registration races, and more.
Cozystack 1.3 brings storage-aware pod scheduling, a managed LINSTOR GUI, a curated VM image catalog, application-level observability, and cross-namespace VM backup restore.
Cozystack 1.2 brings managed OpenSearch, VPC peering, SchedulingClass, and a stabilization follow-up in v1.2.1.
Cozystack v0.41 adds MongoDB as a managed application, introduces the Edit button and resource quota usage in the dashboard, adds JWT token verification, and enables cert-manager Gateway API support.
Cozystack v0.40 introduces the LINSTOR scheduler for optimal pod placement near storage replicas, SeaweedFS traffic locality, a new ValuesFrom configuration mechanism, and major platform architecture refactoring.
Cozystack v0.39 adds Cilium topology-aware routing, Windows VM scheduling with nodeAffinity, a major Talm tool overhaul with encryption support, and VMAgent for tenant namespace metrics.
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.
Cozystack v0.37 replaces the old UI with a new OpenAPI-based Dashboard, introduces the Lineage Webhook for resource tracking, enables PVC expansion in tenant clusters, and makes SeaweedFS S3 buckets discoverable.
The new version of Cozystack focuses on the stability, observability, and flexible configuration of managed applications.
We’re excited to share Andrey Kvapil’s webinar for CNCF! He dives deep into how to build a powerful cloud platform using open-source…
Speaker: Andrei Kvapil, Ænix CEO, Cozystack maintainer
The new version of Cozystack takes a major step forward in its modular (or: decomposed) architecture, enabling users to swiftly integrate…
Our maintainers and contributors never stand still, and we’re already ready to present the next stable release of Cozystack v0.34. In this…
It’s been a while since we last covered Cozystack’s updates — time to fix that! We’re thrilled to showcase a wealth of new features and…
Hello everyone! I’m Andrey Kvapil, CEO of Ænix and developer of Cozystack, an open-source platform and framework for building cloud…
Cozystack v0.30 introduces GPU support for virtual machines, WorkloadMonitor tracking for PVCs and public IPs, CPUManager for dedicated CPU instances, and automated release testing.
We haven’t shared much about Cozystack’s new features lately, even though we’ve released six new versions over the past month and a half…
Main changes
Cozystack v0.23 updates Talos Linux to v1.9.2, adds Telegram severity filtering for alerts, introduces hooks for VM instance type updates, and updates the FluxCD Operator.
The dashboard now works directly with the Cozystack API instead of relying on FluxCD resources. This enhancement enables the platform to…
This release focuses on enhancing stability while addressing a significant number of bugs and introducing new features.
Hi there! I’m Andrei Kvapil, but you might know me as @kvaps in communities dedicated to Kubernetes and cloud-native tools. In this…
Cozystack v0.19 integrates Keycloak for SSO authentication, adds services to the dashboard, updates KubeVirt to v1.4.0, and brings new versions of Cilium, LINSTOR, and MetalLB.
🔥 Public API for Cozystack
This update mainly focuses on enhancing the platform’s virtualization features, while also introducing several other improvements.
Key Highlights Cozystack now features an alert system based on the open-source tool Alerta, with the ability to configure notifications…
Over the past couple of months, we have been actively developing our Cozystack Open Source platform, and today we’re presenting the…
Cozystack v0.15 introduces OpenCost for resource cost tracking, adds Talos metal image and firmware updates, fixes the backup system, and resolves Kamaji OOM issues.
Cozystack v0.14 adds automatic password generation for PostgreSQL, ClickHouse, and FerretDB, introduces user and vhost management for RabbitMQ, and updates CNPG to v1.24.
Cozystack v0.13 adds VictoriaLogs with Fluent-bit for log collection, reworks the VM application with cloud-init and SSH keys, enables live migration with block volumes, and updates KubeVirt to v1.3.1.
Cozystack v0.12 introduces storageClass configuration for all applications, updates Cilium to v1.16.1, adds tenant Kubernetes value overrides, and provides an E2E testing sandbox.
The Cozystack v0.11 release is now available for download, installation, or updating current installations.
Cozystack v0.10 adds FerretDB and NATS as managed applications, introduces network policies for tenant isolation, and updates the etcd operator to v0.4.
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.
A major release bringing the official FluxCD Operator, end-to-end testing, ARM architecture support, managed tenant extensions, and PostgreSQL quorum replication.
Cozystack v0.7 stabilizes tenant cluster networking with Kube-OVN and Cilium updates, fixes DNS propagation, enables etcd defragmentation, and introduces the cozy.local domain.
Cozystack v0.6 adds serial console access for virtual machines, ephemeral storage volumes for containerd and kubelet, and automatic etcd quota configuration.
Cozystack v0.5 adds automatic Helm schema generation, removes hardcoded defaults, and updates Cilium and MariaDB Operator.
Cozystack v0.4 replaces kamaji-etcd with the new aenix-io/etcd-operator, adds replica configuration for applications, and updates Kamaji, LINSTOR, and Kubeapps.
Cozystack v0.3 adds Kafka and ClickHouse as managed applications and introduces NoCloud assets for Hetzner bare-metal installation.
Cozystack v0.2 introduces bundle-based installation, schema versioning for charts, moves FluxCD to the core, and updates Cilium, LINSTOR, CNPG, and MariaDB Operator.
The first feature release of Cozystack introduces ZFS storage support, leader election for the controller, and moves documentation to cozystack.io.