Three-tier web app in AWS with VPC, ALB, EC2 & RDS

 Three-tier web app in AWS with VPC, ALB, EC2 & RDS.

Three-tier architecture is a well-established software application architecture that organizes applications.

The presentation layer (web server), the business logic layer (app_jboss server) and the data storage layer (DB RDS).

following AWS services to design and build a three-tier cloud infrastructure:

1. Route53.
2. Elastic Compute Cloud (EC2),
3. Auto Scaling Group,
4. Virtual Private Cloud (VPC),
5. Internet Gateway.
6. Elastic Load Balancer (ELB),
7. Security Groups.
8. RDS replication.
9. S3 bucket.

VPC setup :-