Blog
Welcome to the Cozystack blog! Here you’ll find the latest news, updates, and insights about Cozystack platform.
Posts in 2026
Managed PostgreSQL with Synchronous Replication — Without the Ops Headache
2026-04-17 in Blog
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tl;dr: Deploy production-grade PostgreSQL with automatic failover and optional synchronous replication on your own hardware in two minutes using Cozystack.
Setting up PostgreSQL with synchronous replication the hard way means Patroni configs, etcd clusters, pgBouncer, monitoring exporters, backup scripts, failover testing — easily a week of work before you even store a single row. And then you still need to maintain it. AWS RDS solves this but locks you into a cloud bill that grows faster than your data. What if you could get managed PostgreSQL on …
Cozystack Have Launched a New OSS Health Section on the Website
2026-04-08 in Blog
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tl;dr: We have launched a new OSS health section on the Cozystack website, with project stats refreshed automatically every month.
We have added a new OSS health section to the Cozystack website, with project metrics refreshed once a month. The goal is simple: make Cozystack’s open source activity easier to explore from several angles in one place. OSS Insight OSS Insight shows repository activity and public traction, including stars, forks, watchers, open issues, commits, and merged PRs. OpenSSF OpenSSF shows …
CozySummit Virtual 2026: The Program Is Set — and It Looks Amazing!
2026-04-06 in Blog
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tl;dr: The full lineup of talks for CozySummit Virtual 2026 is ready! Five outstanding sessions from practitioners building real cloud-native infrastructure — all in one free online event on May 26, 2026.
We are thrilled to announce the full lineup of talks for the new CozySummit Virtual 2026! The program is ready, and we can’t wait to share it with you. Five outstanding sessions from practitioners building real cloud-native infrastructure — all in one free online event on May 26, 2026. 📌 SESSIONS Building a Multi-Cloud Service Mesh from the Ground Up with Kilo Lu Servén Marín — SRE @ …
Game Servers on Cozystack: No April Fools' Joke
2026-04-01 in Blog
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Author: Timur Tukaev (Ænix) hello, world! We are the team behind Cozystack, an open-source platform for building clouds on your own hardware. We want to explain why we decided to target the game server space and what came of it. What Is Cozystack Cozystack is a platform that turns ordinary servers into a full-fledged cloud. The project is part of CNCF Sandbox, is distributed under the Apache 2.0 …
Cozystack 1.2: OpenSearch, VPC Peering, and Smarter Tenant Scheduling
2026-03-31 in Blog
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tl;dr: Cozystack 1.2 brings managed OpenSearch, VPC peering, SchedulingClass, and a stabilization follow-up in v1.2.1.
Cozystack 1.2: OpenSearch, VPC Peering, and Smarter Tenant Scheduling The Cozystack 1.2 release line is now available. v1.2.0 was published on March 27, 2026, and v1.2.1 followed on March 31, 2026. This cycle expands the platform in three important directions: managed search and analytics, secure networking between tenant environments, and better control over where tenant workloads run. The …
Cozystack v1.0 & v1.1: Introducing Package-Based Architecture, Cozystack Operator, Velero Strategy Controller, MongoDB and OpenBAO Support
2026-03-16 in Blog
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Author: Timur Tukaev (Ænix) The last platform release was 0.41. So it came as a surprise when the next release, 0.42, turned out to be the answer to the ultimate question of life, the universe, and everything. The number of serious changes that had piled up was just too great—so much so that 0.42 had to be renamed to 1.0. With the release of v1.0.0, Cozystack is undergoing a fundamental …
Cozystack at KubeCon Europe 2026
2026-03-11 in Blog
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Author: Timur Tukaev (Ænix) Amsterdam, Netherlands — March 25 📍 CNCF Project Pavilion 🪧 Kiosk P-18A | Halls 1–5 🕙 Wednesday, March 25 | 10:00 – 13:30 Building your own public or private cloud? Running Kubernetes-based services for your customers? Trying to simplify your stack? Want to automate operations and stop paying huge bills to big cloud providers? Come find our COO, Timur Tukaev, at the …
Invitation to CozySummit Virtual – May 26
2026-02-11 in Blog
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Author: Timur Tukaev (Ænix) Join us on May 26 for 2nd CozySummit Virtual, conference for CozyStack developers and adopters. 📢 CFP is open until March 8 – submit your talk and become speaker at our event! CozySummit Virtual is organized by CNCF with the support of CozyStack maintainers and project sponsors. Suggested Session Topics: Cozystack in Production: Real-world deep dives into architecture, …
Cozystack v0.41: MongoDB, Dashboard Edit Button, Resource Quota UI, JWT Security, and cert-manager Gateway API
2026-01-20 in Blog
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tl;dr: 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 v0.41: MongoDB, Dashboard Edit Button, Resource Quota UI, JWT Security, and cert-manager Gateway API Version 0.41 expands the database catalog with MongoDB and significantly improves the dashboard and security posture. Major Features and Improvements MongoDB as a Managed Application MongoDB joins the Cozystack application catalog as a fully managed service with: Replica set deployment …
Cozystack v0.40: LINSTOR Scheduler, SeaweedFS Traffic Locality, ValuesFrom Configuration, and Platform Decomposition
2026-01-10 in Blog
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tl;dr: 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 v0.40: LINSTOR Scheduler, SeaweedFS Traffic Locality, ValuesFrom Configuration, and Platform Decomposition Version 0.40 is a substantial release that optimizes storage performance, introduces a new configuration mechanism, and refactors the platform architecture for modularity. Major Features and Improvements LINSTOR Scheduler A new LINSTOR scheduler places pods on nodes that have local …
Posts in 2025
Cozystack v0.39: Topology-Aware Routing, Windows VM Scheduling, Talm Overhaul, and VMAgent for Tenants
2025-12-23 in Blog
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tl;dr: 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 v0.39: Topology-Aware Routing, Windows VM Scheduling, Talm Overhaul, and VMAgent for Tenants Version 0.39 enhances networking, scheduling, and the tooling around Cozystack infrastructure management. Major Features and Improvements Topology-Aware Routing for Cilium Cilium services now support topology-aware routing, keeping traffic local to the same zone or region when possible. This …
Talm v0.17: Built-in Age Encryption for Secrets Management
2025-12-17 in Blog
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tl;dr: Talm v0.17 introduces built-in age encryption for secure secrets management, making it easier to store sensitive configuration files in Git repositories while maintaining security best practices.
Talm v0.17: Built-in Age Encryption for Secrets Management The latest release of Talm, the configuration manager for Talos Linux, introduces a powerful new feature: built-in encryption using the age encryption tool. This enhancement allows you to securely store sensitive configuration files like secrets.yaml, talosconfig, and kubeconfig in Git repositories while following security best practices. …
Flux-aio, Kubernetes mTLS and the Chicken and Egg Problem
2025-12-12 in Blog
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tl;dr: 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.
Here at Cozystack, we’re once again solving the chicken-and-egg problem: how to deploy CNI and kube-proxy through Flux, while ensuring Flux itself works without CNI and kube-proxy. Flux can be started without CNI and kube-proxy using the flux-aio project (by the creator of Flux), which runs a single deployment with all controllers configured to communicate with each other via localhost. The …
Cozystack v0.38: Virtual Private Cloud, VNC Console, Configurable Worker K8s Versions, and HTTPS Enforcement
2025-11-25 in Blog
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tl;dr: 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 v0.38: Virtual Private Cloud, VNC Console, Configurable Worker K8s Versions, and HTTPS Enforcement Version 0.38 brings network isolation capabilities, improved VM access, and security hardening across the platform. Major Features and Improvements Virtual Private Cloud (VPC) The headline feature of v0.38 is VPC support with Multus CNI integration. Operators can now create isolated virtual …
CozySummit lineup is out!
2025-10-14 in Blog
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tl;dr: Yaaay! We’ve published the schedule for CozySummit 2025 Virtual — an online conference for Cozystack developers and users, hosted together…
👻 CozySummit lineup is out! Yaaay! We’ve published the schedule for CozySummit 2025 Virtual — an online conference for Cozystack developers and users, hosted together with the CNCF. The talk lineup looks great. Just look at that! Wednesday, December 3, 2025 16:00 CET (9:00 AM CT) Opening/Intro by Andrei Kvapil, Cozystack Maintainer, Ænix CEO&Founder 16:05 CET (9:05 AM CT) “How we build a …
Cozystack v0.37: OpenAPI Dashboard, Lineage Webhook, PVC Expansion in Tenants, and SeaweedFS S3 Discovery
2025-10-10 in Blog
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tl;dr: 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.
Cozystack v0.37: OpenAPI Dashboard, Lineage Webhook, PVC Expansion in Tenants, and SeaweedFS S3 Discovery Version 0.37 is a major release that overhauls the platform UI and introduces powerful new infrastructure capabilities. Major Features and Improvements New OpenAPI-Based Dashboard The old Kubeapps-based UI is replaced with a brand-new OpenAPI-based Dashboard. The new dashboard features …
Cozystack applied to CNCF Incubated
2025-10-08 in Blog
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tl;dr: We’ve just submitted our application to move from CNCF Sandbox to Incubated. We’d love your support — drop a like to cheer us on. It won’t…
Cozystack applied to CNCF Incubated We’ve just submitted our application to move from CNCF Sandbox to Incubated. We’d love your support — drop a like to cheer us on. It won’t sway the TOC’s decision, but it means a lot to us. Why it matters: CNCF Incubating signals a more mature project that’s ready for production use. It also attracts contributors and unlocks extra CNCF opportunities to help us …
Cozystack v0.36
2025-10-01 in Blog
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tl;dr: The new version of Cozystack focuses on the stability, observability, and flexible configuration of managed applications.
😜 Cozystack v0.36: Server-side Encryption for S3, Kube-OVN Cluster Health Monitor, REST API Documentation The new version of Cozystack focuses on the stability, observability, and flexible configuration of managed applications. 👉 Major Features and Improvements Per-Namespace Resource Limits for Tenants Resource management for Cozystack tenants has received a final patch and is now graduated to a …
Protofire Experience Operating Kubernetes with Cozystack
2025-09-10 in Blog
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tl;dr: In a recent infrastructure transition that spanned several months, our team explored alternative container orchestration platforms to…
Protofire Experience Operating Kubernetes with Cozystack In a recent infrastructure transition that spanned several months, our team explored alternative container orchestration platforms to simplify operations and optimize costs. At the time, our environment consisted of nearly a hundred AWS accounts running multiple ECS services, along with managed PostgreSQL, Redis, RabbitMQ, and ALBs. One of …
New CNCF Webinar: Building Your Own Cloud Platform with Open Source
2025-09-05 in Blog
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tl;dr: 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…
New CNCF Webinar: Building Your Own Cloud Platform with Open Source 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 components. Inside, you’ll find: Architectural approaches & API design How to select the right components Strategies to integrate them into a robust infrastructure solution This is a must-watch …
CNCF Webinar: One API to Rule Them All — Building a Unified Platform with Kubernetes Aggregation
2025-09-03 in Blog
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tl;dr: Speaker: Andrei Kvapil, Ænix CEO, Cozystack maintainer
CNCF Webinar: One API to Rule Them All — Building a Unified Platform with Kubernetes Aggregation Speaker: Andrei Kvapil, Ænix CEO, Cozystack maintainer When: Sep, 4 How do you build a unified product from a stack of open-source tools? In this talk, a Cozystack core maintainer walks through the engineering journey of integrating Helm, Operators, and the Kubernetes Aggregation Layer to build a …
Cozystack v0.35:
2025-08-21 in Blog
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tl;dr: The new version of Cozystack takes a major step forward in its modular (or: decomposed) architecture, enabling users to swiftly integrate…
Cozystack v0.35: External Application Sources, Dedicated S3 Clusters and Monitoring, Hetzner RobotLB Support The new version of Cozystack takes a major step forward in its modular (or: decomposed) architecture, enabling users to swiftly integrate custom applications and services. This significantly extends the platform’s out-of-the-box functionality to meet specific business needs. And there’s …
Invitation to CozySummit Virtual — December 3
2025-08-14 in Blog
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tl;dr: Join us on December 3 for CozySummit Virtual, the first conference for CozyStack developers and users.
Invitation to CozySummit Virtual — December 3 Join us on December 3 for CozySummit Virtual, the first conference for CozyStack developers and users. 📢 CFP is open until September 14 — submit your talk and become one of the first speakers at our event! CozySummit Virtual is organized by CNCF with the support of CozyStack maintainers and project sponsors. Suggested Session Topics: Taking on the …
Cozystack v0.34:
2025-08-04 in Blog
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tl;dr: Our maintainers and contributors never stand still, and we’re already ready to present the next stable release of Cozystack v0.34. In this…
Cozystack v0.34: K8s Version Selection and PVC Snapshots in Tenants, Windows and RouterOS on VMs, VPA for VPA Our maintainers and contributors never stand still, and we’re already ready to present the next stable release of Cozystack v0.34. In this release, we continued working on expanding the functionality of the Vertical Pod Autoscaler, improving tenant clusters, enhancing the backup system, …
Cozystack v0.31–0.33
2025-07-09 in Blog
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tl;dr: 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…
Cozystack v0.31–0.33 Releases: Air Gap, Backup System, AI workloads in K8s, replace for Helm and other features 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 key improvements in this roundup. For brevity, we’ve curated only the most significant changes here (you’ll find all fixes and enhancements in the …
Cozyhr: How We Simplified Local Development with Helm and Flux
2025-06-18 in Blog
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tl;dr: Hi! I'm Andrei Kvapil CEO of Ænix and developer of Cozystack, an open source platform and framework for building cloud infrastructure. In…
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 this article I’ll walk through the way we deliver applications to Kubernetes, explain why regular GitOps can be awkward in local development, an show how the new tool cozyhr fixes those pain points. …
Cozystack became a Certified Kubernetes Platform
2025-06-06 in Blog
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tl;dr: We’re proud to announce: Cozystack has achieved Certified Kubernetes Platform status. Thanks to our community and especially to our good…
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 friends from Hidora.
The Evolution of Virtualization Platforms: The Rise of Managed Services and Local Providers’ Edge…
2025-06-04 in Blog
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tl;dr: Hello everyone! I’m Andrey Kvapil, CEO of Ænix and developer of Cozystack, an open-source platform and framework for building cloud…
The Evolution of Virtualization Platforms: The Rise of Managed Services and Local Providers’ Edge Against Hyperscalers Hello everyone! I’m Andrey Kvapil, CEO of Ænix and developer of Cozystack, an open-source platform and framework for building cloud infrastructure. In this article, I want to share my perspective on how modern cloud patterns have transformed infrastructure approaches, the evolving …
Cozystack Recognized in CNCF's CNAI Landscape!
2025-05-21 in Blog
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tl;dr: We’re thrilled to share that Cozystack has been added to the Cloud Native AI (CNAI) Landscape by the Cloud Native Computing Foundation…
🚀 Cozystack Recognized in CNCF’s CNAI Landscape! We’re thrilled to share that Cozystack has been added to the Cloud Native AI (CNAI) Landscape by the Cloud Native Computing Foundation (CNCF)! This is a significant validation of our work in bridging cloud-native infrastructure with AI workloads. Why This Matters: Industry Recognition: Being featured alongside major players confirms Cozystack’s role …
A Simple Way to Install Talos Linux on Any Machine, with Any Provider
2025-04-28 in Blog
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tl;dr: Talos Linux is a specialized operating system designed for running Kubernetes. In my opinion, it does that task better than others. First…
A Simple Way to Install Talos Linux on Any Machine, with Any Provider Talos Linux is a specialized operating system designed for running Kubernetes. In my opinion, it does that task better than others. First and foremost it handles full lifecycle management for Kubernetes control-plane components. On the other hand, Talos Linux focuses on security, minimizing the user’s ability to influence the …
Cozystack Now Offers GPU Passthrough for AI/ML Virtual Machines
2025-04-18 in Blog
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tl;dr: The open-source cloud platform has introduced direct GPU passthrough in its latest release, enabling users to accelerate AI, machine…
Cozystack Now Offers GPU Passthrough for AI/ML Virtual Machines The open-source cloud platform has introduced direct GPU passthrough in its latest release, enabling users to accelerate AI, machine learning, and other compute-intensive workloads on virtual machines. By leveraging physical GPUs from host nodes, teams can now deploy open-source AI stacks without proprietary cloud dependencies. …
Updates to the Open-Source Platform Cozystack 0.24–0.29:
2025-04-10 in Blog
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tl;dr: 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…
Updates to the Open-Source Platform Cozystack 0.24–0.29: PXE Machine Provisioning, Inter-Datacenter RTT Monitoring, and Dedicated IP Addresses for VMs 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: 0.24, 0.25, 0.26, 0.27, 0.28, and 0.29. Let’s take a closer look at the changes, starting from the latest …
Cozystack v0.30: GPU Passthrough, WorkloadMonitor for PVCs and IPs, CPUManager, and Automated Testing in CI
2025-04-10 in Blog
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tl;dr: 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.
Cozystack v0.30: GPU Passthrough, WorkloadMonitor for PVCs and IPs, CPUManager, and Automated Testing in CI Version 0.30 brings GPU capabilities to the platform and improves resource tracking and testing infrastructure. Major Features and Improvements GPU Passthrough for Virtual Machines Cozystack now includes the GPU Operator and supports GPU passthrough for virtual machines. Users can assign …
Cozystack Becomes a CNCF Sandbox Project
2025-03-13 in Blog
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tl;dr: On February 28, members of the CNCF Technical Oversight Committee completed their voting and unanimously accepted Cozystack, a platform for…
Cozystack Becomes a CNCF Sandbox Project On February 28, members of the CNCF Technical Oversight Committee completed their voting and unanimously accepted Cozystack, a platform for building private clouds and PaaS, into the CNCF Sandbox. The project is currently undergoing the onboarding process. Let’s break down what this means in practice, what Cozystack is, and what the CNCF Sandbox represents. …
Cozystack v0.23: Talos Linux v1.9.2, Telegram Alert Severity, VM Instance Hooks, and Flux Operator Update
2025-01-17 in Blog
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tl;dr: 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.
Cozystack v0.23: Talos Linux v1.9.2, Telegram Alert Severity, VM Instance Hooks, and Flux Operator Update Version 0.23 improves alerting, VM lifecycle management, and updates core infrastructure components. Major Features and Improvements Talos Linux v1.9.2 Talos Linux is updated to v1.9.2, bringing security patches and stability improvements for the host OS. Telegram Alert Severity Filtering …
Cozystack v0.22 Release: telemetry, patched Talos v1.9.1, new entities Workload and WorkloadMonitor
2025-01-17 in Blog
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tl;dr: Main changes
Cozystack v0.22 Release: telemetry, patched Talos v1.9.1, new entities Workload and WorkloadMonitor Main changes In the latest release was added cozystack-controller and new entities: Workload and WorkloadMonitor, which allow monitoring the state of pods managed by operators and evaluating the service level according to predefined rules. Since different applications in Cozystack are managed by …
Posts in 2024
Introducing the Pre-New Year Release of open source platform Cozystack v0.21:
2024-12-28 in Blog
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tl;dr: The dashboard now works directly with the Cozystack API instead of relying on FluxCD resources. This enhancement enables the platform to…
Introducing the Pre-New Year Release of open source platform Cozystack v0.21: New User Dashboard, Talos Linux, etc. The dashboard now works directly with the Cozystack API instead of relying on FluxCD resources. This enhancement enables the platform to provide a user-friendly graphical interface while integrating with Kubernetes’ standard RBAC model for managing deployment permissions. Each tenant …
How we built a dynamic Kubernetes API Server for the API Aggregation Layer in Cozystack
2024-12-12 in Blog
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tl;dr: Hi there! I’m Andrei Kvapil, but you might know me as @kvaps in communities dedicated to Kubernetes and cloud-native tools. In this…
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 article, I want to share how we implemented our own extension api-server in the open-source PaaS platform, Cozystack. Kubernetes truly amazes me with its powerful extensibility …
Cozystack v0.20 Release: Terraform, Keycloak, and Stability & Security Improvements
2024-12-12 in Blog
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tl;dr: This release focuses on enhancing stability while addressing a significant number of bugs and introducing new features.
Cozystack v0.20 Release: Terraform, Keycloak, and Stability & Security Improvements This release focuses on enhancing stability while addressing a significant number of bugs and introducing new features. What’s new Kube-OVN updated to the latest stable release. Improved logic in KubeVirt CCM, delivering more reliable load balancers for tenant Kubernetes clusters. Resolved user permissions …
Cozystack v0.19: Keycloak SSO, Dashboard Services View, KubeVirt v1.4, and MetalLB Update
2024-12-04 in Blog
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tl;dr: 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.
Cozystack v0.19: Keycloak SSO, Dashboard Services View, KubeVirt v1.4, and MetalLB Update Version 0.19 introduces identity management with Keycloak and significantly improves the dashboard experience. Major Features and Improvements Keycloak SSO Integration Keycloak is now available as an optional platform component, providing: Single Sign-On (SSO) for the Cozystack dashboard and Kubeapps. …
Cozystack v0.18
2024-11-07 in Blog
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tl;dr: 🔥 Public API for Cozystack
Cozystack v0.18 Release: Public API Server, Metrics and Logs from Tenant Clusters, and Other Improvements 🔥 Public API for Cozystack This is the biggest and most anticipated update for us. Cozystack now includes its own Kubernetes API server, which automatically translates all requests to custom resources into HelmReleases. This means that platform administrators can now provide users with …
What’s New in Cozystack v0.17
2024-10-24 in Blog
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tl;dr: This update mainly focuses on enhancing the platform’s virtualization features, while also introducing several other improvements.
What’s New in Cozystack v0.17: Windows on VMs, VM image upload app, and web interface for S3 buckets This update mainly focuses on enhancing the platform’s virtualization features, while also introducing several other improvements. Today marks the release of an updated version of the free PaaS system, Cozystack. Built on Kubernetes, Cozystack consists of numerous open technologies and provides all …
Cozystack on Hacktoberfest: become a part of the global IT event!
2024-10-04 in Blog
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tl;dr: We’ve decided to participate in Hacktoberfest. If you’re participating too, come visit our GitHub and check out the amazing issues. And if…
Cozystack on Hacktoberfest: become a part of the global IT event! We’ve decided to participate in Hacktoberfest. If you’re participating too, come visit our GitHub and check out the amazing issues. And if something seems unclear, follow the links below; you’ll find all the answers there :) 🫡 Rules and details https://hacktoberfest.com 😜 Cozystack GitHub https://github.com/aenix-io/cozystack ❤️ …
The Open Source Platform Cozystack Version 0.16.0
2024-10-03 in Blog
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tl;dr: Key Highlights Cozystack now features an alert system based on the open-source tool Alerta, with the ability to configure notifications…
The Open Source Platform Cozystack Version 0.16.0 Released: Alert System with Telegram Notifications and More Improvements Key Highlights Cozystack now features an alert system based on the open-source tool Alerta, with the ability to configure notifications directly to Telegram. Additionally, you can receive alerts from k8s-prometheus stack, all Grafana dashboards have been updated, as well as …
Recent Changes in the Cozystack Open Source Platform: Opencost, Log Collection System, Bridge…
2024-09-26 in Blog
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tl;dr: Over the past couple of months, we have been actively developing our Cozystack Open Source platform, and today we’re presenting the…
Recent Changes in the Cozystack Open Source Platform: Opencost, Log Collection System, Bridge Binding in Virtual Machines Over the past couple of months, we have been actively developing our Cozystack Open Source platform, and today we’re presenting the improvements introduced from v0.12 to v0.15. Cozystack is an Open Source platform that enables building a cloud on bare metal for rapid deployment …
Cozystack has officially been included in the CNCF Landscape
2024-09-25 in Blog
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tl;dr: You can now find the Cozystack open source platform in the CNCF Landscape categories of Platform and Certified Kubernetes — Installed…
Cozystack has officially been included in the CNCF Landscape You can now find the Cozystack open source platform in the CNCF Landscape categories of Platform and Certified Kubernetes — Installed. Despite being a relatively young platform, Cozystack is experiencing rapid growth, and an active community of developers and users has already formed around it. Weekly open meetings are held to discuss …
Cozystack v0.15: OpenCost, Talos Metal Image, Backup Fixes, and Kamaji OOM Fix
2024-09-16 in Blog
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tl;dr: 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 v0.15: OpenCost, Talos Metal Image, Backup Fixes, and Kamaji OOM Fix Version 0.15 adds cost visibility, improves bare-metal provisioning, and fixes critical stability issues. Major Features and Improvements OpenCost OpenCost is now integrated into Cozystack, providing resource cost tracking across the platform. Operators can see how much compute, storage, and network resources each …
Cozystack v0.14: Auto-Generated Passwords, RabbitMQ Users and VHosts, and CNPG v1.24
2024-09-04 in Blog
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tl;dr: 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 v0.14: Auto-Generated Passwords, RabbitMQ Users and VHosts, and CNPG v1.24 Version 0.14 focuses on improving the security and usability of managed database and messaging applications. Major Features and Improvements Auto-Generated Passwords Managed applications now generate secure passwords automatically during deployment: PostgreSQL — automatic credential generation. ClickHouse — …
Cozystack v0.13: VictoriaLogs, VM Live Migration, KubeVirt v1.3, and Bridge Networking
2024-08-31 in Blog
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tl;dr: 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 v0.13: VictoriaLogs, VM Live Migration, KubeVirt v1.3, and Bridge Networking Version 0.13 is a major release that introduces centralized logging, a completely reworked virtual machine experience, and updated virtualization components. Major Features and Improvements VictoriaLogs and Fluent-bit Cozystack gains a centralized log collection system with VictoriaLogs as the storage backend …
Cozystack v0.12: StorageClass for All Apps, Cilium v1.16, VM Configuration, and E2E Sandbox
2024-08-21 in Blog
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tl;dr: 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.
Cozystack v0.12: StorageClass for All Apps, Cilium v1.16, VM Configuration, and E2E Sandbox Version 0.12 brings storage flexibility, updated networking, and better testing infrastructure. Major Features and Improvements StorageClass for All Applications All applications now support a storageClass option, allowing operators to choose which storage class to use per application. This is especially …
Installing a Kubernetes Cluster Managed by Cozystack: A Detailed Guide by Gohost and Ænix
2024-08-16 in Blog
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tl;dr: This article was written by Vladislav Karabasov from Kazakhstani hosting company gohost, therefore the narrative will be conducted in the…
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 first person. At the time of my transition to gohost.kz, the company had already been operating in the Kazakhstan market for 15 years, providing clients with a standard set …
Cozystack v0.11
2024-08-15 in Blog
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tl;dr: The Cozystack v0.11 release is now available for download, installation, or updating current installations.
Cozystack v0.11 Open Source platform has been released: S3, improved tenant isolation, UI enhancements, and other features The Cozystack v0.11 release is now available for download, installation, or updating current installations. Key changes: — Added S3 support. Implemented the basic SeaweedFS functionality in Cozystack. Developed a Kubernetes-COSI driver for automatic S3 bucket provisioning. …
Cozystack v0.10: FerretDB, NATS, Network Policies for Tenant Isolation, and etcd Operator v0.4
2024-07-23 in Blog
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tl;dr: 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 v0.10: FerretDB, NATS, Network Policies for Tenant Isolation, and etcd Operator v0.4 Version 0.10 expands the managed application catalog and adds critical multi-tenant security. Major Features and Improvements FerretDB FerretDB — a MongoDB-compatible database backed by PostgreSQL — joins the application catalog. It includes automatic schema permissions and password generation. NATS …
Cozystack v0.9: KubeVirt v1.2.2, Kamaji v1.0, Tenant K8s v1.30, and Node Group Upgrades
2024-07-10 in Blog
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tl;dr: 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.
Cozystack v0.9: KubeVirt v1.2.2, Kamaji v1.0, Tenant K8s v1.30, and Node Group Upgrades Version 0.9 brings major component updates and improves the tenant Kubernetes lifecycle. Major Features and Improvements Component Updates KubeVirt updated to v1.2.2 with stability improvements. Kamaji reaches v1.0.0 — a significant milestone for the tenant control plane manager. Piraeus updated to v2.5.1. …
Cozystack v0.8: FluxCD Operator, E2E Tests, ARM Support, and Managed Cluster Extensions
2024-07-04 in Blog
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tl;dr: A major release bringing the official FluxCD Operator, end-to-end testing, ARM architecture support, managed tenant extensions, and PostgreSQL quorum replication.
Cozystack v0.8: FluxCD Operator, E2E Tests, ARM Support, and Managed Cluster Extensions Cozystack v0.8 is a significant release that overhauls the Flux installation, adds comprehensive testing, and expands platform reach to ARM hardware. Major Features and Improvements FluxCD Operator The installation logic for FluxCD has been completely revamped. The community Helm chart is replaced with the …
Introducing Talm, a configuration manager for Talos Linux
2024-05-29 in Blog
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Author: Andrei Kvapil (Ænix) The Cozystack project has released Talm, a configuration manager for Talos Linux The developers of the open-source PaaS platform Cozystack have prepared the Talm project, aimed at simplifying the configuration of bare-metal servers for Talos Linux, an operating system designed to run Kubernetes with a Kubernetes-like API and configured via a single Yaml manifest. …
Cozystack v0.7: Network Stabilization, DNS Fixes, etcd Autocompaction, and cozy.local Domain
2024-05-29 in Blog
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tl;dr: 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 v0.7: Network Stabilization, DNS Fixes, etcd Autocompaction, and cozy.local Domain Version 0.7 is a stability release that resolves critical networking issues in tenant Kubernetes clusters. Major Features and Improvements Network Stabilization Updated Kube-OVN to v1.13.0 and Cilium to v1.15.5. Resolved pod communication issues in tenant Kubernetes clusters by enabling BPF masquerade and …
Cozystack v0.6: VM Serial Console, Ephemeral Storage for Containers, and etcd Auto-Quota
2024-05-16 in Blog
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tl;dr: Cozystack v0.6 adds serial console access for virtual machines, ephemeral storage volumes for containerd and kubelet, and automatic etcd quota configuration.
Cozystack v0.6: VM Serial Console, Ephemeral Storage for Containers, and etcd Auto-Quota Version 0.6 focuses on improving the virtual machine experience and storage management in tenant Kubernetes clusters. Major Features and Improvements VM Serial Console Virtual machines now support serial console access via virtctl from the KubeVirt toolkit. The root user no longer requires a password, making …
Cozystack v0.5: Automatic Schema Generation, Cilium v1.14.10, and MariaDB Operator Update
2024-05-10 in Blog
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tl;dr: Cozystack v0.5 adds automatic Helm schema generation, removes hardcoded defaults, and updates Cilium and MariaDB Operator.
Cozystack v0.5: Automatic Schema Generation, Cilium v1.14.10, and MariaDB Operator Update Version 0.5 improves the developer experience with automatic schema generation and brings component updates. Major Features and Improvements Automatic Schema Generation Helm chart schemas are now generated automatically with removal of hardcoded default values. This makes dashboard forms more accurate and …
Cozystack v0.4: etcd Operator, Replica Options, Kamaji v0.5, and Dark Mode Fix
2024-05-06 in Blog
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tl;dr: 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 v0.4: etcd Operator, Replica Options, Kamaji v0.5, and Dark Mode Fix Version 0.4 introduces a dedicated etcd operator and brings important flexibility for application deployment. Major Features and Improvements New etcd Operator The kamaji-etcd component is replaced with the new aenix-io/etcd-operator, providing better lifecycle management for etcd clusters that back tenant Kubernetes …
Cozystack v0.3: Kafka, ClickHouse, and Hetzner Bare-Metal Support
2024-04-18 in Blog
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tl;dr: Cozystack v0.3 adds Kafka and ClickHouse as managed applications and introduces NoCloud assets for Hetzner bare-metal installation.
Cozystack v0.3: Kafka, ClickHouse, and Hetzner Bare-Metal Support Version 0.3 significantly expands the managed application catalog with two major data infrastructure components. Major Features and Improvements Kafka The Strimzi Kafka Operator is now included, bringing managed Apache Kafka to the platform. Users can deploy Kafka clusters and manage topics directly from the Cozystack dashboard. …
DIY: Create Your Own Cloud with Kubernetes (Part 3)
2024-04-05 in Blog
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Author: Andrei Kvapil (Ænix) Approaching the most interesting phase, this article delves into running Kubernetes within Kubernetes. Technologies such as Kamaji and Cluster API are highlighted, along with their integration with KubeVirt. Previous discussions have covered preparing Kubernetes on bare metal and how to turn Kubernetes into virtual machines management system. This article concludes the …
DIY: Create Your Own Cloud with Kubernetes (Part 2)
2024-04-05 in Blog
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Author: Andrei Kvapil (Ænix) Continuing our series of posts on how to build your own cloud using just the Kubernetes ecosystem. In the previous article, we explained how we prepare a basic Kubernetes distribution based on Talos Linux and Flux CD. In this article, we’ll show you a few various virtualization technologies in Kubernetes and prepare everything need to run virtual machines in …
DIY: Create Your Own Cloud with Kubernetes (Part 1)
2024-04-05 in Blog
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Author: Andrei Kvapil (Ænix) At Ænix, we have a deep affection for Kubernetes and dream that all modern technologies will soon start utilizing its remarkable patterns. Have you ever thought about building your own cloud? I bet you have. But is it possible to do this using only modern technologies and approaches, without leaving the cozy Kubernetes ecosystem? Our experience in developing Cozystack …
Cozystack v0.2: Bundles, Schema Versioning, FluxCD as Core Package, and Component Updates
2024-04-05 in Blog
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tl;dr: Cozystack v0.2 introduces bundle-based installation, schema versioning for charts, moves FluxCD to the core, and updates Cilium, LINSTOR, CNPG, and MariaDB Operator.
Cozystack v0.2: Bundles, Schema Versioning, FluxCD as Core Package, and Component Updates Version 0.2 positions Cozystack as a framework for building clouds and introduces several foundational changes to the platform architecture. Major Features and Improvements Bundle-Based Installation A new bundle-name configuration option (e.g. paas-full) allows operators to choose which set of platform …
Introducing Cozystack: A Free PaaS Platform based on Kubernetes
2024-02-21 in Blog
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Author: Andrei Kvapil (Ænix) Published the first release of the free PaaS platform Cozystack, based on Kubernetes. The project positioned as a ready-to-use platform for hosting providers and a framework for building private and public clouds. The code is available on GitHub and is distributed under the Apache-2.0 license. Cozystack is a system that is installed directly on servers and covers all …
Cozystack v0.1: ZFS Support, Leader Election, and Documentation Move
2024-02-20 in Blog
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tl;dr: The first feature release of Cozystack introduces ZFS storage support, leader election for the controller, and moves documentation to cozystack.io.
Cozystack v0.1: ZFS Support, Leader Election, and Documentation Move The first feature release of Cozystack lays the groundwork for a production-grade platform. Major Features and Improvements ZFS Support Cozystack now supports ZFS as a storage backend, giving operators a choice of battle-tested storage for their infrastructure. Leader Election Leader election is enabled for the Cozystack …
Posts in 2020
Configuring routing for MetalLB in L2 mode
2020-05-14 in Blog
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tl;dr: In this article I will show you how to configure source-based and policy-based routing for the external network on your cluster.
Configuring routing for MetalLB in L2 mode Not so far ago, I was faced with a quite unusual task of configuring routing for MetalLB. All would be nothing, since MetalLB usually does not require any additional configuration from user side, but in our case there is a fairly large cluster with a quite simple network configuration. In this article I will show you how to configure source-based and …