Deploy a high-availability web app using CloudFormation

Parameters

The more the better, but an exaggerated number of parameters can be messy ( say, 10 or more ). 1 or 0 is definitely lacking.

Resources

This is the mandatory section of the script, we are looking for a LoadBalancer, Launch Configuration, AutoScaling group a health check, security groups and a Listener and Target Group.

Outputs

This is optional, but it would be nice to have a URL here with the Load Balancer DNS Name and “http” in front of it .

Working Test

If the student provides a URL to verify his work is running properly, it will be a page that says “it works! Udagram, Udacity”

Target Group

The auto-scaling group needs to have a property that associates it with a target group. The Load Balancer will have a Listener rule associated with the same target group

Health Check and Listener

Port 80 should be used in Security groups, health checks and listeners associated with the load balancer

Subnets

Students should be using PRIV-NET ( private subnets ) for their auto-scaling instances

Machine Specs

The machine should have 10 GB or more of disk and should be a t3.small or better.

SSH Key

There shouldn’t be a ‘keyname’ property in the launch config

Output

Any values in the output section are a bonus

Bastion Host

Any resource of type AWS::EC2::Instance, optional, but nice to have.