dmbichko / tf-aws-ec2 Goto Github PK

We will be deploying two ec2 instances. One will be on a public subnet, and the other on a private subnet. EC2 instance in a public subnet will have a public IP to connect to the Internet, given that you have configured an Internet gateway for VPC and created a route from the subnet to the Internet gateway.

The private EC2 instance will not have a public IP, keeping it isolated from anyone on the Internet. Even though we are not allowing it to be reachable from the Internet, we still need a way for EC2 instances to download patches. To do this, we will use the magic of the NAT gateway.

We will create a NAT gateway in the public subnet and assign it a static IP(Elastic IP). We will also configure the routes for the private subnet to talk to NAT, enabling the EC2 instance in the private subnet to download the software updates. Also we will install httpd on a public instance and show some technical information.