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sk1/README.md

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+# Contact List Application
+
+A simple web-based contact list application deployed on Google Kubernetes Engine (GKE) with automated HTTPS certificate provisioning.
+
+## Description
+
+This application allows users to create, view, update, and delete contacts in a persistent MongoDB database. It features a clean, responsive interface and is deployed as a containerized application on Google Cloud Platform using Kubernetes.
+
+## Technologies Used
+
+- **Frontend**: HTML, CSS, JavaScript
+- **Backend**: Node.js with Express
+- **Database**: MongoDB
+- **Containerization**: Docker
+- **Orchestration**: Google Kubernetes Engine (GKE)
+- **Load Balancing & HTTPS**: GKE Ingress with Google-managed certificates
+- **Domain**: Dynamic domain using nip.io DNS service
+
+## Architecture
+
+The application consists of multiple containers:
+
+1. **Contact App**: Node.js application serving the web interface and API
+2. **MongoDB**: NoSQL database for storing contact information
+3. **Ingress Controller**: Manages external access to the services
+4. **Load Balancer**: Distributes incoming traffic
+
+## Key Features
+
+- Responsive web interface
+- RESTful API for contact management
+- Persistent data storage using MongoDB with PersistentVolumeClaims
+- Automatic HTTPS certificate provisioning
+- Automatic application restart on failure
+- Scalable architecture
+
+## Deployment Files
+
+The application includes the following configuration files:
+
+- **Dockerfile**: Containerizes the Node.js application
+- **k8s/**: Kubernetes configuration directory
+  - **app-deployment.yaml**: Deployment for the Node.js application
+  - **app-service.yaml**: Service for the Node.js application
+  - **contact-app-lb.yaml**: LoadBalancer service for obtaining external IP
+  - **ingress.yaml**: Template for Ingress configuration
+  - **mongo-deployment.yaml**: Deployment for MongoDB
+  - **mongo-service.yaml**: Service for MongoDB
+  - **mongo-pvc.yaml**: PersistentVolumeClaim for MongoDB data
+  - **namespace.yaml**: Namespace for application resources
+
+## Deployment Scripts
+
+### prepare-app.sh
+
+This script handles the entire deployment process:
+
+1. Builds and pushes the Docker image to Google Container Registry
+2. Creates a GKE cluster if one doesn't exist
+3. Deploys MongoDB with persistent storage
+4. Deploys the Contact App application
+5. Creates a LoadBalancer service to obtain an external IP
+6. Configures Ingress with a dynamic domain using nip.io
+7. Sets up HTTPS with Google-managed certificates
+
+### remove-app.sh
+
+This script removes all resources created by the application:
+
+1. Deletes Ingress and certificates
+2. Deletes application deployments and services
+3. Deletes MongoDB deployment, service, and PVC
+4. Removes the Kubernetes namespace
+
+## Usage Instructions
+
+### Prerequisites
+
+1. Google Cloud Platform account with billing enabled
+2. Google Cloud SDK installed and configured
+3. kubectl installed
+4. Docker installed
+
+### Deployment
+
+1. Clone the repository
+2. Navigate to the project directory
+3. Make the scripts executable:
+   ```bash
+   chmod +x prepare-app.sh remove-app.sh