Final Project - Terraform - Bekaiym Egemkulova

Terraform project with best practice, meta-arguments, terraform remote state, data blocks and etc.

Note

👽 Instances created in Modules directory are with HEALTHY target checks, yahoo! :>

final-project/
│
├── modules/
│   ├── networking/
│   │   ├── README.md
│   │   ├── main.tf
│   │   ├── variables.tf
│   │   └── outputs.tf
│   ├── autoscaling/
│   │   ├── README.md
│   │   ├── main.tf
│   │   ├── variables.tf
│   │   └── outputs.tf
├── environments/
│   ├── prod/
│   │   ├── providers.tf
│   │   ├── main.tf
│   │   ├── data.tf
│   │   └── outputs.tf
│   │
│   └── dev/
│   │   ├── providers.tf
│   │   ├── main.tf
│   │   ├── data.tf
│   │   └── outputs.tf
│
├── .gitignore
└── README.md

Project Structure Description

1. Root Level

• .gitignore: ignores big and medium files and folders created by Terraform.

2. Modules

• networking/: The networking module for VPC, Public and Private Subnets, CIDR blocks, IGW, NAT, EIP, Route Tables and Associations.
• autoscaling/: The autoscaling module for Launch Template, User Data, Security Groups and Supplementary Security Group, ALB, Target Group, Listener, Autoscaling Group.

Each module contains:

• main.tf: Configuration for that specific module.
• variables.tf: Module-specific variables.
• outputs.tf: Output values specific to that module.
• README.md: Brief description to that module.

3. Environments

• prod/: Environment-specific configurations for production. S3 bucket and static website.
• dev/: Environment-specific configurations for development. Networking and Autoscaling modules are used.

Each environment includes:

• main.tf: Configuration specific to that environment.
• variables.tf: Environment-specific variables.
• outputs.tf: Environment-specific outputs.
• providers.tf: Provider-specific outputs.

This module will create:

• VPC
• Public Subnets
• Private Subnets
• Internet Gateway
• NAT Gateway
• Elastic IP for NAT
• Private and Public Route Tables
• Launch Template
• Autoscaling Group
• Application Load Balancer
• Target Group
• Listener
• and etc.

Usage:

export AWS_ACCESS_KEY_ID=<write your access key id>
export AWS_SECRET_ACCESS_KEY=<write you secret access key>
export AWS_DEFAULT_REGION=<write default region to create resource in>

Then perform the following commands on the root folder:

• terraform init terraform initialization
• terraform plan to see the infrastructure plan
• terraform apply to apply infrastructure build
• terraform destroy to destroy the infrastructure

Requirements

Name	Version
terraform	>= 1.1.0
aws	>= 3.71.0

Providers

Name	Version
aws	>= 3.71.0