User-defined Playground

kubeadm Cluster Playground

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

TODO

kubeadm Cluster playground: TODO
Machines & network
5 VMs · 10 vCPU · 15GiB RAM
Playground host Internet NAT MASQUERADE local (bridge) 172.16.0.0/24 gw 172.16.0.1/24eth0eth0eth0eth0eth0
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/base/kubeadm-cluster/dev-machine:5c7cbaff35cb
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/base/kubeadm-cluster:d245bef567c5
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/base/kubeadm-cluster:d245bef567c5
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/base/kubeadm-cluster:d245bef567c5
VM
vCPU ·
eth0
/
oci://ghcr.io/sagikazarmark/iximiuz-labs/base/kubeadm-cluster:d245bef567c5
About
kubeadm cluster architecture

🔧 System Components

  • kubelet: The primary node agent that runs on each node
  • Container Runtimes:
    • containerd: Lightweight container runtime (recommended)
    • CRI-O: Lightweight container runtime for Kubernetes
  • Networking:
    • CNI plugins: Container Network Interface plugins
    • Flannel: Network overlay for pod-to-pod communication

🛠️ Tools

  • kubeadm: Cluster lifecycle management and bootstrapping
  • kubectl (alias: k): Kubernetes cluster management and debugging
  • nerdctl: Docker-compatible CLI for containerd
  • krew: kubectl plugin manager for extending functionality

🎯 Getting Started

Quick Setup

📚 Learn More

🧩 Related Content

🧪 Playgrounds

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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