Installing Terraform and Understanding Terraform Basics

Manager:
We have decided to use Terraform for Infrastructure as Code. However, before we can automate infrastructure deployment, we need to set up Terraform and understand its core concepts.

DevOps Engineer:
That's correct. We need to install Terraform and learn its basic workflow, configuration syntax, and commands.

Manager:
Why is understanding Terraform basics important?

DevOps Engineer:
Because Terraform uses configuration files to define infrastructure. Understanding providers, resources, state files, and execution plans is essential for managing cloud resources effectively.

Manager:
What will be our learning approach?

DevOps Engineer:
We will install Terraform, verify the installation, explore Terraform configuration files, and learn key commands such as init, plan, apply, and destroy.

DevOps Engineer to Team:
Team, we will install Terraform, configure our development environment, understand Terraform architecture and workflow, and practice basic commands to prepare for infrastructure automation on the ContentSphere platform.

Team:
Understood. We will install Terraform and learn its fundamentals to build a strong foundation for Infrastructure as Code and cloud resource provisioning.

• An AWS Account is available.
• AWS CLI is installed on the local machine.
• AWS CLI is configured with valid AWS credentials.
• Administrative access to the local machine is available.
• Required AWS permissions are available to verify account access.
• Local machine meets Terraform installation requirements.

To install Terraform, open Google and search for "Terraform Download". Visit the official Terraform website.

Select Linux on the Terraform download page, copy the provided package manager commands, and execute them in your terminal to install Terraform.

AWS CLI enables Terraform to authenticate with AWS and manage cloud resources using configured AWS credentials.

Verify Installation:

Create IAM User for Terraform

Terraform requires AWS credentials to authenticate and manage AWS resources.

Steps:

1. Log in to the AWS Management Console.

2. Navigate to IAM.

3. Select Users from the left navigation pane.

4. Click Create User.

5. Enter the username:

terraform-user

6. Click Next.

7. Attach the following policy:

8. Complete the user creation process.

After creating the IAM user

1. Open the created IAM user.

2. Navigate to the Security Credentials tab.

3. Click Create Access Key.

4. Select: Command Line Interface (CLI)

5. Create the access key.

You will receive: AWS_ACCESS_KEY_Id ,AWS_SECRET_ACCESS_KEY

Important: Save both values securely, as the Secret Access Key cannot be viewed again after closing the page.

Configure AWS Credentials

Configure AWS CLI with the IAM user credentials.

Run:

Enter the following information when prompted:

AWS Access Key ID [None]: AKIAxxxxxxxxxxxxx

AWS Secret Access Key [None]: xxxxxxxxxxxxxxxxxxxxxxxxx

Default region name [None]: ap-south-1

Default output format [None]: json

Create Terraform Project Directory

Create a dedicated directory for Terraform configuration files.

Run:

Verify Current Directory:

Expected Output:

This directory will be used to store all Terraform configuration files, variables, outputs, and state files throughout the labs.

Great job!

• Introduction to Terraform and Infrastructure as Code (IaC)

• Installing Terraform and AWS CLI

• Creating an IAM User and Access Keys

• Configuring AWS credentials

• Verifying AWS account connectivity

• Setting up a Terraform project workspace

• Terraform Providers and Resources

• Terraform workflow (init, plan, apply, destroy)

• Creating a local file using Terraform

• Launching an EC2 instance using Terraform

• Understanding Terraform state files