AWS Three-Tier Architecture

Architecture

Step:1

*Create IAM EC2 Instance Role *
-> Initially created S3 Bucket in the AWS console with the unique
name.
-> Move to the Role Creation

Step 2: Create VPC

Successfully VPC created!

Step 3: Create Subnets
As per the Architecture, Create a 6 Subnets where 2 public and 4 private subnets.

Successfully 6 subnets are created!

*Step 4: Create Internet Gateway *
To provide internet access to the public subnets in our VPC, we need to create an Internet Gateway and connect it to the VPC.

Attach the Internet Gateway to the VPC after creating the IG.

Step 5: NAT Gateway
To provide internet access to the private subnets in our VPC, we need to create an NAT Gateway and connect it to the VPC.
->Create VPC

->Type the Name of Gateway
->choose one of the public subnets
->allocate an Elastic IP
->Create gateway

Step 6: Create Route Tables

click on the Routes tab and Edit routes:

Edit subnet association

Save Association

create private route table

Edit route table

Created private 2nd route table

Create security Group
SG-1

SG-2:

SG-3:

SG-4:

SG- 5

Database Deployement
Subnet Groups

create db subnet groups

Database creation

Cleanup the db:

delete nat gateway

release ip