User-defined Playground

HariKube Playground

Márk Sági-Kazár
by  Márk Sági-Kazár · on
Kubernetes

A single-machine Kubernetes playground provisioned with kubeadm and backed by HariKube instead of local etcd.

HariKube playground: A single-machine Kubernetes playground provisioned with kubeadm and backed by HariKube instead of local etcd.
Machines & network
3 VMs · 6 vCPU · 12GiB RAM
Playground host Internet NAT MASQUERADE local (bridge) 172.16.0.0/24 gw 172.16.0.1/24eth0eth0eth0
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/playgrounds/harikubeadm/dev-machine:live@sha256:3de704f8a3c6a699dd6b6da4c8b77598c08c4e173c6784a1bba1d1fb878eebbc
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/playgrounds/harikubeadm-cluster/control-plane-defaults:live@sha256:4dccf27b31b6e65ce8197a0f4e3c66cd442198b125feeea032b89364220d8972
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/playgrounds/harikubeadm-cluster/worker-defaults:live@sha256:98dbf82c16389dbc2f6bd832fa876c930982c157ae3a429685b693faeeacf707
About

HariKube

This playground starts from the harikubeadm base images and then provisions the cluster for you during playground startup.

What You Get

  • a preconfigured single-node kubeadm control plane
  • HariKube middleware running as the etcd static pod
  • HariKube-patched kube-apiserver and kube-controller-manager
  • kubectl access already configured on the dev-machine

Versions

  • Kubernetes: v1.35.0
  • HariKube middleware: release-v1.0.3

Verify The Cluster

kubectl get pods -A
kubectl get nodes
kubectl get --raw /readyz?verbose

Learn More

Happy learning!

Every playground includes

A real VM, not a container

Get root on a VM with its own kernel, so Docker, Kubernetes, and systemd just work.

Read the docs →

SSH from browser or CLI

Use the built-in web terminal, or connect with labctl ssh, plain ssh, scp, or rsync.

Read the docs →

Drive it with AI

Let Claude, Codex, or any MCP client start this playground and run commands in it.

Read the docs →

Expose HTTP(S) ports

Give any web app running inside the VM a public URL - for yourself or to share with others.

Read the docs →

Share terminals

Invite others into your terminal session, or open it yourself from another device.

Read the docs →

Customize with init scripts

Add shell scripts that run at boot to install packages, clone repos, or seed test data.

Read the docs →

Private networking

VMs reach the internet via NAT with no public IP; several VMs share bridge networks.

Read the docs →

Ephemeral or persistent

By default, VMs are destroyed when the session ends; enable persistence to keep the disks for next time.

Read the docs →

Built-in container registry

A private registry.iximiuz.com for every playground to share images across services and VMs.

Read the docs →

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