Cozystack: Free Cloud Platform based on Kubernetes

Use Cozystack to build your own cloud or provide cost-effective development environments.

Get started Live Demo

Cozystack is a Cloud Native Computing Foundation Sandbox project

Transform a set of bare metal servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Databases-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.

Self-Hosted Alternative to AWS
AI-Ready Infrastructure
Open-Source VMware Alternative

See the console before you install anything

Cozystack's real dashboard, running entirely in your browser — no cluster, no signup, no setup. Browse the marketplace, open managed services, click through the console. It's the actual UI, just with demo data.

Open the live demo →

Where Cozystack fits

Six situations the project was built for. Every one of them is someone running it in production today.

Hosting and cloud providers

You sell VPS. Customers now ask for managed Kubernetes, databases and object storage, and building each service yourself is a roadmap you never finish.

One platform that turns your existing hardware into a catalogue: isolated tenants, self-service provisioning, and a Kubernetes-native API your billing can drive.

Building a public cloud

Teams leaving VMware

Perpetual licences are gone, renewal quotas arrived, and the VMs still have to run somewhere you control.

Virtual machines and containers on the same cluster, on your own servers, with live migration and replicated storage — and the migration path is a tool, not a rewrite.

Building a private cloud

Platform teams

Developers open tickets for a database, a cluster or an environment, and the platform team is the bottleneck for all of it.

Developers request what they need as Kubernetes resources and get it in minutes, inside quotas you set, without an account on anyone’s cloud.

As a Kubernetes distribution

Universities and research

Every group wants its own cluster and a share of the GPUs, and nobody wants to administer either.

A real isolated cluster per group or per course on shared hardware, GPU allocation between them, and an environment that can be recreated from a repository next term.

Public sector and regulated industries

The data cannot leave your jurisdiction, and an external control plane is not something you are allowed to depend on.

The whole platform runs on your own hardware with no external SaaS in the control path, and every component is open source you can audit.

Telecom and edge

Network functions still arrive as virtual machines while everything new arrives as containers, and they end up on separate stacks.

Both on one platform, with the networking the dataplane needs, from a central site out to small edge clusters.

Benefits

API-first

Cozystack is based on Kubernetes and involves close interaction with its API. It does not aim to completely hide the all elements behind a pretty UI or any sort of customizations. Instead, it provides a standard interface and educates users to work with basic primitives.

Standardization and Unification

All components of the platform are based on proven open source tools and technologies which are widely known in the industry. We strive to use the most well-established and proven approaches, making the whole platform very simple and avoiding vendor lock-in.

Collaborate, not Compete

We are proud of our community and closely interact with projects around it. If we build a platform feature that can be useful in an upstream project, we prefer to contribute it to that project, rather than keep it in the platform.

Features

Easy to Install

With talos-bootstrap, we provide the ultimate easy installation method, allowing you to bootstrap Cozystack using PXE or ISO methods on servers in a bare data center. Using immutable OS helps maintain system consistency and ensure that everything works as expected.

Easy to Integrate

We provide a native Kubernetes RESTful API, widely recognized for its declarativity. Therefore, to integrate with your billing, it’s enough to instruct your system to submit a specific YAML manifest defining the desired service to the Kubernetes API. Cozystack will do the rest of the work for you.

Easy to Extend

Each package in the platform consists of a set of YAML files. Therefore, everyone having some familiarity with Kubernetes primitives can modify or expand the platform. Package delivery is reliably handled by FluxCD, a well-known and widely used tool.

High Performance, Low Overhead

We care about performance. That’s why we adopt the most performant technologies balancing stability and functionality. Moreover, our unique tenant model enables efficient allocation of cloud resources for the control plane, ensuring cost-efficiency and the necessary level of security.

Built-in Monitoring & Alerts

Each instance of each service is accompanied by a set of pre-configured dashboards and alerts. You can create separate monitoring hubs for every tenant or combine them into one.

Built-In UI for App Management

While the primary goal of the platform is to provide a beautiful API, it also has a dashboard for deploying applications. The Web UI facilitates a quick dive into the platform and provides a visual demonstration of its capabilities.

Community

We deeply appreciate the steadfast support and contributions from our community towards the growth of Cozystack.
Join our community and become part of our journey.

GitHub Discussions

Join the conversation in GitHub Discussions. Everything Cozystack related ranging from specifications and feature planning to Show & Tell happens here.

Slack

If you want to talk to the Cozystack team and community in real-time, join us on Slack. This is a great way to get to know everyone. Get a Slack invite, or go to the #cozystack channel.

We also have a large community on Telegram. Join the @cozystack group chat to engage with fellow users, ask questions, and stay updated on the latest news and developments.

YouTube