Dumbpad Deployment on KIND (Kubernetes in Docker)

This repository contains Kubernetes manifests to deploy Dumbpad on a KIND cluster with persistent storage and service exposure.

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📂 Repository Structure

.
├── deployment.yml                  # Deployment manifest (3 replicas of Dumbpad app)
├── persistentvolume.yml            # PersistentVolume (PV) for local storage
├── persitancevolumeclam.yml        # PersistentVolumeClaim (PVC) bound to PV
└── service.yml                     # Service to expose Dumbpad pods

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⚙️ Prerequisites

• KIND installed and running
• kubectl configured to access KIND cluster
• Docker installed and running

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🚀 Deployment Steps

1. Clone the repository

   git clone https://github.com/singhchandan27/Kubernetes.git
   cd Kubernetes/dumbpad

2. Create namespace (Create NS as per your need)

   kubectl create namespace nginx

3. Apply PersistentVolume (PV)

   kubectl apply -f persistentvolume.yml

4. Apply PersistentVolumeClaim (PVC)

   kubectl apply -f persitancevolumeclam.yml

5. Deploy Dumbpad app

   kubectl apply -f deployment.yml

6. Create Service

   kubectl apply -f service.yml

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📦 Components

1. Deployment (deployment.yml)

• Runs 3 replicas of the Dumbpad app
• Uses Docker image: dumbwareio/dumbpad:latest
• Mounts persistent storage at /app/data

2. PersistentVolume (persistentvolume.yml)

• 1Gi storage on host path /mnt/app
• Storage class: local-storage
• Reclaim policy: Retain

3. PersistentVolumeClaim (persitancevolumeclam.yml)

• Requests 1Gi storage
• Access mode: ReadWriteOnce

4. Service (service.yml)

• Exposes Dumbpad pods on port 3000 inside the cluster
• Service type: ClusterIP

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🔍 Verify Deployment

Check all resources:

kubectl get all -n nginx

Check PersistentVolumes:

kubectl get pv
kubectl get pvc -n nginx

Port-forward service for local access:

kubectl port-forward svc/dumbpad-service -n nginx 3000:3000

Now open http://localhost:3000 in your browser 🎉

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🧹 Cleanup

To remove all resources:

kubectl delete -f service.yml
kubectl delete -f deployment.yml
kubectl delete -f clamvoluem.yml
kubectl delete -f persistvolume.yml
kubectl delete namespace nginx

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📌 Notes

• This deployment is configured for KIND (uses hostPath storage).
• In cloud environments (AWS, GCP, Azure), replace PV and PVC with cloud-specific storage classes.
• For external access, update the service type from ClusterIP to NodePort or LoadBalancer.