AWS-THREE TIER WEB ARCHITECTURE

STEP 1:Create a three tier web Architecture or Take a three tier architecture from this link:https://github.com/aws-samples/aws-three-tier-web-architecture-workshop

Step 2:Create a bucket with a unique name.

STEP 3:Add a role by choosing the below two permission policies.

STEP 4:Create a vpc.

STEP 5:create 6 subnet.

STEP 6:CREATE a internet gateway.

STEP 7:allocate elastic ip.

STEP 8:create nat 2 gateway.

STEP 9:Create route table.

STEP 10:Attach internet gateway to your vpc.

STEP 11:Add routes.

STEP 12:Save associations.

STEP 13:create private subnet.

STEP 14:Update the routes of private route table az 1 and 2

STEP 15:update subnet associations for Private route table 1 and 2

STEP 16:Create a security group for web tier.

STEP 17:Create another security group for internal load balancer.

STEP 18:Create a security group for private instance with inbound rules with custom sg.

STEP 19:Create a security group for database with the specified inbound rules.

STEP 20:Create a DB subnet group for our vpc.

STEP 21:Now create a DataBase