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+# API Gateway Infrastructure - Documentation
+
+Welcome to the API Gateway infrastructure documentation. This guide covers the complete setup and configuration of the API Gateway system.
+
+## Overview
+
+This documentation provides comprehensive information about:
+
+- **Architecture**: Understanding the API Gateway setup
+- **Applications**: Backend applications integration (Web & API)
+- **Configuration**: Gateway routes, services, and policies
+- **Deployment**: CI/CD pipeline automation
+- **Operations**: Monitoring, troubleshooting, and maintenance
+
+## Quick Links
+
+- [Architecture Overview](architecture.md)
+- [Getting Started](getting-started.md)
+- [Gateway Configuration](api7-configuration.md)
+- [Kubernetes Resources](kubernetes-resources.md)
+- [CI/CD Pipeline](cicd-pipeline.md)
+- [Troubleshooting Guide](troubleshooting.md)
+
+## Infrastructure Components
+
+### Gateway Control Plane
+
+**Control Plane Components**
+- Dashboard: Web-based management interface
+- Developer Portal: API documentation and testing portal
+- DP Manager: Data plane management service
+- PostgreSQL Database: Configuration storage
+- Prometheus Monitoring: Metrics collection
+
+**Gateway Data Plane**
+- Multiple replicas for high availability
+- ClusterIP service for internal communication
+- Gateway Groups for logical organization
+- External access via Ingress Controller
+
+### Applications
+
+- **Web Application**: Frontend application interface
+- **API Application**: Backend REST API services
+
+### Domain Configuration
+
+- **Wildcard Domain**: Support for subdomains
+- **Root Domain**: Primary domain access
+- **TLS**: Automated certificate management
+
+## Technology Stack
+
+- **API Gateway**: Enterprise API Gateway Solution
+- **Control Plane**: Centralized management interface
+- **Data Plane**: High-performance request processing
+- **Container Orchestration**: Kubernetes
+- **Ingress Controller**: External traffic management
+- **Certificate Management**: Automated TLS certificates
+- **CI/CD**: Automated deployment pipeline
+- **Applications**: Microservices architecture
+- **Documentation**: Technical documentation system
+
+## Repository Structure
+
+**Components**:
+- Web application container images
+- API service container images
+- Configuration management
+- Infrastructure as Code
+
+## Getting Help
+
+For issues or questions:
+
+1. Check the [Troubleshooting Guide](troubleshooting.md)
+2. Review the gateway documentation
+3. Check application logs in the container platform
+
+---
+
+*Documentation Version: 1.0*