Overview

Why Terraform

• Infrastructure as Code (IaC)
• Declarative
• State Management
• Modularity
• Multi-Cloud Support
• Platform-agnostic
• Community Support

How Terraform Works

Terraform has components

• Terraform Core -- The main Terraform binary that is responsible for parsing the configuration files and executing the plan.
• Terraform Providers -- Allow Terraform to know how to interact with the cloud provider via remote APIs
• Terraform State -- A file that Terraform uses to keep track of the resources it has created.
• Terraform Modules -- A way to organize and reuse Terraform code.

Understanding the Different Terraform Stages

• Terraform Init
• Terraform Plan
• Terraform Apply
• Terraform Destroy

Installation

Install Terraform

Install AWS CLI

Configuration

AWS IAM

• Create user with programmatic access
• Attach the policy to the user (administrator access)
• Create access key and secret key

GitHub

• Create a new repository named terraform-demo
• Clone the repository to your local machine

git clone https://github.com/your-username/terraform-demo.git

Authentication into AWS

• Create a file named .env under terraform-demo directory
• Add the following content to the file

export AWS_ACCESS_KEY_ID="your-access-key-id"
export AWS_SECRET_ACCESS_KEY="your-secret-access-key"

• Create .gitignore file under terraform-demo directory
• Add the following content to the file

.env

• Run the following command to load the environment variables

source .env
- Run this command to verify 
```shell
aws s3 ls