Kubernetes Cluster Playground

📖 Overview

This playground provides a multi-node Kubernetes cluster provisioned with kubeadm:

• 1 Control Plane Node: control-plane
• 3 Worker Nodes: worker-01, worker-02, worker-03
• 1 Development Machine: dev-machine (pre-configured with kubectl access)

🛠️ Tools

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

🎯 Getting Started

The cluster is automatically provisioned and ready to use. Start by verifying the cluster status:

# Check cluster nodes
kubectl get nodes

# Check system pods
kubectl get pods --all-namespaces

# View cluster information
kubectl cluster-info

Deploy a Test Application

# Create a simple deployment
kubectl create deployment podinfo --image=ghcr.io/stefanprodan/podinfo --port=9898

# Expose the deployment
kubectl expose deployment podinfo --port=9898

# Wait for the pod to be ready
kubectl wait --for=condition=Ready pods --all --timeout=300s

# Check the deployment
kubectl get pods,services -o wide

📚 Learn More

• Kubernetes Documentation
• kubectl Reference
• kubeadm Documentation

🧩 Related Content

🧪 Playgrounds

• Kubernetes Playgrounds (official)
• kubeadm
• Kubernetes HA

Happy learning! 🚀