DevOps Playgrounds

A multi-node Kubernetes cluster provisioned with kubeadm, allowing you to choose your preferred container runtime and networking plugin. Perfect for CKA, CKAD, and CKS preparation.

A Linux server with Docker engine pre-installed.

A vanilla Ubuntu 26.04 server.

Get a disposable agentic coding environment in seconds. Claude Code, Codex, Gemini CLI, and Opencode pre-installed and ready to use.

Your perfect base playground. Create purpose-built sandbox environments by choosing up to five VMs with custom root filesystems and organizing them into any number of local networks.

A multi-node K3s cluster with a load balancer, Helm, and more.

A Linux server with Podman, a daemonless Docker alternative, pre-installed.

Four refined Ubuntu VMs connected into a single network.

Try ShellGym - an interactive Linux command-line trainer - in a ready-made Ubuntu VM: daemon running, web UI open, sample learning path loaded.

A collection of mini-programs demonstrating Kubernetes client-go usage and a loaded IDE. Handy if you need to write a controller or two.

nerdctl, containerd, and BuildKit packed together for true nerds.

Incus is an actively improved community fork of LXD. Do you need systemd inside your containers? Give Incus a try!

The latest Python 3.x, pyenv, uv, Docker, VS Code, and a bunch of extensions.

A fresh Go version and a loaded VS Code (or Vim) is all you need.

The latest Node.js, NVM, Docker, VS Code, and a bunch of extensions.

Get started with Zig in no time using an in-browser VS Code with handy addons preinstalled.