Simple Terraform configuration

A Terraform configuration that provisions the following infrastructure:

A VPC with:

• Public subnets for external resources.
• Private subnets for internal resources.

EC2 instances:

• Deployed within the private subnets.
• Running a web server that displays the hostname of the instance which received the request.

Requirements:

Autoscaling:

Configure the EC2 instances to scale based on demand using AWS Auto Scaling Groups.

Expose the web application:

Make the web application reachable from the internet while keeping the EC2 instances in the private subnets.

A VPC with:

• Public subnets for external resources.
• Private subnets for internal resources.

EC2 instances:

• Deployed within the private subnets.
• Running a web server that displays the hostname of the instance which received the request.

Requirements:

Autoscaling:

• Configure the EC2 instances to scale based on demand using AWS Auto Scaling Groups.

Expose the web application:

• Make the web application reachable from the internet while keeping the EC2 instances in the private subnets.

Environment

SETUP	ENV
Provider	[AWS]
Region	[eu-west-1] [eu-west-1a] [eu-west-1b]
VPC cidr_block	[192.168.0.0/16]
Public-Subnet	[192.168.0.0/24]
Private-Subnet	[192.168.1.0/24]
Route NAT Gateway	[cidr_block = “0.0.0.0/0”]
Bastion ec2	[t2.micro]
Nginx	[t2.micro]
docker image	[https://hub.docker.com/r/nginxdemos/hello/]
Security groups	[tcp/22 – http/80]
CertManager	[NO]
Route53	[NO]

References

Resource	URL
Terraform Autoscaling Module	https://registry.terraform.io/modules/terraform-aws-modules/autoscaling/aws/latest
Terraform Autoscaling Policy	https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/autoscaling_policy
Terraform Fargate	https://registry.terraform.io/modules/almirosmanovic/fargate/aws/latest/examples/autoscaling

Explanation from the Readme.md file on the Git Repository