Learn Cozystack on Cozystack

Key Concepts

Mon, 01 Jan 0001 00:00:00 +0000

Cozystack is an open-source, Kubernetes-native platform that turns bare-metal or virtual infrastructure into a fully featured, multi-tenant cloud. At its core are a few foundational building blocks:

the management cluster that runs the platform itself;
tenants that provide strict, hierarchical isolation;
tenant clusters that give users their own Kubernetes control planes;
rich catalog of managed applications and virtual machines;
variants that assemble these components into a turnkey stack.

Understanding how these concepts fit together will help you plan, deploy, and operate Cozystack effectively, whether you are building an internal developer platform or a public cloud service.

Talos Linux in Cozystack

Mon, 01 Jan 0001 00:00:00 +0000

Why Cozystack is Using Talos Linux

Talos Linux is a Linux distribution made and optimized for one job: to run Kubernetes. It is the foundation of reliability and security in Cozystack cluster. Selecting it enables Cozystack to strictly limit the technology stack and make the system stable as a rock.

Let’s see why Cozystack developers chose Talos as the foundation of a Kubernetes cluster and what it brings to Cozystack.

GPU in Cozystack

Mon, 01 Jan 0001 00:00:00 +0000

Cozystack can serve a GPU to a container, to a virtual machine, or to a workload inside a tenant Kubernetes cluster. Each of these is a separate path with its own guide, and they are not interchangeable: the choice is made once per management cluster, by deciding who owns the card on the host, and it fixes what every GPU node in that cluster can serve. This page is the map: which path fits, what it costs, and what it rules out.