Tier Architecture Web Application
This project demonstrates a 3-Tier Architecture Web Application deployed entirely on AWS Cloud. The architecture is designed for scalability, security, and high availability, following industry best practices.
📌 Project Overview
The 3-tier architecture is divided into:
- Presentation Tier (Web Tier)
Hosted on EC2 instances behind Nginx as a reverse proxy.
Manages user-facing requests and routes them to the application tier.
- Application Tier (App Tier)
Runs on separate EC2 instances.
Handles the business logic of the application.
- Database Tier (DB Tier)
Powered by Amazon RDS (MySQL/PostgreSQL).
Stores and manages structured data with automated backups and security.
🏗️ AWS Services Used
VPC – Custom Virtual Private Cloud with public and private subnets.
EC2 – Web and application servers.
S3 – Storage for static assets and backups.
RDS – Relational Database Service for secure data management.
IAM – Fine-grained access control and role-based permissions.
🔐 Security & Networking
Public subnets for web tier, private subnets for app and DB tier.
Security Groups and NACLs to control inbound/outbound traffic.
IAM roles & policies for least-privilege access.
SSL/TLS configuration with Nginx for secure communication.
⚙️ Deployment Steps
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Create VPC with public and private subnets.
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Launch EC2 instances for web and app tiers.
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Configure Nginx on the web tier for reverse proxy.
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Deploy application code on the app tier.
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Setup RDS instance in private subnet for database tier.
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Configure IAM roles and attach to resources.
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Upload static assets to S3 bucket.
🚀 Key Learnings
Designing and deploying a multi-tier architecture in AWS.
Securing resources with IAM, VPC, and Systems Manager.
Configuring Nginx reverse proxy with SSL.
Managing DNS and routing with Route 53.
👨💻 Author
Ethan Hunt (stealthcoderX) Cloud & DevOps Enthusiast | Building AWS Projects 🚀