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

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

A single-node K0s cluster.

A single-node cluster with most of the K3s bells and whistles disabled.

by  Ivan Velichko

Jaeger's HotROD demo app pre-deployed on a 3-node K3s cluster, wired to a Jaeger v2 all-in-one over OTLP. Click a customer, then read the trace.

by  Ivan Velichko

A 3-node K3s cluster with gVisor (runsc), the kubernetes-sigs/agent-sandbox controllers, and the OpenClaw + gVisor example pre-deployed. OpenClaw's Control UI is available as a dedicated tab.

by  Ivan Velichko

A snapshot-backed three-node k3s cluster with the complete OpenTelemetry Demo, including Jaeger and Grafana.

by  Başar Subaşı

A sandbox where you can experiment with different k8s stacks all you want!

by  Ivan Velichko

A Kubernetes cluster with the Kata Containers runtime preinstalled.

by  Adam Leskis

Diagnose realistic distributed tracing scenarios in a preloaded k3s VM, for users to get more familiar with traces in general and jaeger-ui specifically. There's guided investigation through distributed traces, along with identification of slow spans and comparing two traces to identify what changed to make it slow down.

by  Márk Sági-Kazár

VictoriaMetrics Operator on a multi-node Kubernetes cluster.

by  Adam Leskis

This playground presents a k3s cluster that has randomized security vulnerabilities injected based on the OWASP Kubernetes Top 10 list for 2025. Run a scan to find what's wrong, then fix it and get another random vulnerability automatically injected. Play as long as you like!

Experiment with GitOps - deploy a demo app to a Kubernetes cluster with ArgoCD, with app manifests stored in a Git repo hosted in Gitea.

by  Sameh Ammar

Open-Source Kubernetes YAML Builder with Intuitive Web Interface and Dynamic Visualization for Developers and DevOps Engineers kube-composer.com

by  Márk Sági-Kazár

A multi-node, highly available Kubernetes cluster provisioned with kubeadm.