terraform-root

Root Terraform configuration that consumes all infrastructure modules from separate repos.

Repo Architecture

Repo	Purpose
terraform-module-vpc	Creates an AWS VPC
terraform-module-subnet	Creates subnets inside a VPC
terraform-module-ec2	Creates EC2 instances + Security Groups
terraform-module-s3	Creates S3 bucket with encryption & versioning
terraform-root (this repo)	Wires all modules together per environment

Usage

First-time Setup

terraform init

Deploy Dev

terraform workspace new dev
terraform workspace select dev
terraform plan  -var-file="envs/dev.tfvars"
terraform apply -var-file="envs/dev.tfvars"

Deploy UAT

terraform workspace new uat
terraform workspace select uat
terraform plan  -var-file="envs/uat.tfvars"
terraform apply -var-file="envs/uat.tfvars"

Deploy Prod

terraform workspace new prod
terraform workspace select prod
terraform plan  -var-file="envs/prod.tfvars"
terraform apply -var-file="envs/prod.tfvars"

Environment Differences

Feature	Dev	UAT	Prod
VPC CIDR	10.0.0.0/16	10.1.0.0/16	10.2.0.0/16
EC2 Instance Type	t2.micro	t2.small	t3.medium
SSH Access	Open	Open	VPC-only
Termination Protection	No	No	Yes
S3 Versioning	Suspended	Suspended	Enabled
S3 force_destroy	Yes	Yes	No

Replace <your-org> in main.tf source URLs with your actual GitHub organisation or username.