How to Deploy a Full-Stack Application to AWS using EC2, S3, and RDS
How to Deploy a Full-Stack Application to AWS using EC2, S3, and RDS
This guide provides a professional workflow for migrating a local full-stack environment to a production-ready AWS architecture. By the end of this process, your frontend will be hosted on S3, your backend on EC2, and your data persisted in RDS.
What You'll Need
- AWS Account
- AWS CLI installed and configured
- A completed full-stack application (Frontend, Backend, Database)
- SSH key pair (.pem file) for EC2 access
Steps
Step 1: Provision an RDS Instance
Create a relational database instance in the RDS console selecting the engine that matches your local DB (e.g., PostgreSQL or MySQL). Configure the DB subnet group to allow access from your EC2 security group and ensure you securely store the master username and password.
Step 2: Launch an EC2 Instance
Launch a t2.micro or t3.small instance using an Amazon Linux 2 or Ubuntu AMI. Assign a Security Group that opens port 22 for SSH, port 80 for HTTP, and the specific port your backend uses (e.g., 5000 or 8000).
Step 3: Configure the Backend Environment
SSH into your EC2 instance and install the necessary runtime environments, such as Node.js, Python, or Java. Clone your repository from Git and install dependencies using your package manager.
Step 4: Set Up Environment Variables
Create a .env file on the EC2 instance to store sensitive credentials. Include the RDS endpoint, database name, and API secret keys to ensure the backend can communicate with the database securely.
Step 5: Deploy Backend with a Process Manager
Use a tool like PM2 or systemd to keep your application running in the background. This ensures the server automatically restarts if the application crashes or the instance reboots.
Step 6: Configure an Nginx Reverse Proxy
Install Nginx to act as a reverse proxy, routing incoming traffic from port 80 to your backend application port. This improves security and allows you to easily implement SSL certificates via Certbot.
Step 7: Host Frontend on S3
Build your frontend project locally to generate static assets. Upload these files to an S3 bucket configured for 'Static Website Hosting' and enable public read access for the objects.
Step 8: Connect Frontend to Backend
Update your frontend API base URL to point to the EC2 public DNS or your custom domain. Re-deploy the static assets to S3 to ensure the client-side application communicates with the live production server.
Expert Tips
- Use AWS Secrets Manager instead of .env files for higher security in enterprise environments.
- Implement an Application Load Balancer (ALB) if you plan to scale across multiple EC2 instances.
- Set up S3 bucket policies and CloudFront for faster global content delivery and HTTPS support.
See also
- Implementing a Scalable Authentication System in Python with FastAPI and JWT
- REST vs. GraphQL: Choosing the Right Architecture for Scalable APIs
- How to Optimize Complex SQL Database Queries for Performance
- Best Practices for Clean Code and Maintainability in JavaScript