What is Infrastructure as Code in Terraform - Hands-On Activity

What is Infrastructure as Code

📖 Scenario: You are working as a cloud engineer. Your team wants to manage cloud resources using code instead of manual clicks. This helps keep track of changes and makes setups repeatable.

🎯 Goal: Build a simple Terraform configuration that creates a cloud resource using code. This shows how Infrastructure as Code works in practice.

📋 What You'll Learn

Create a Terraform configuration file

Define a provider block for AWS

Create a simple AWS resource (like an S3 bucket)

Use variables to configure the resource name

💡 Why This Matters

🌍 Real World

Teams use Infrastructure as Code to automate cloud setups, avoid manual errors, and keep track of changes.

💼 Career

Knowing Infrastructure as Code is essential for cloud engineers, DevOps, and anyone managing cloud infrastructure professionally.

1

Create the Terraform provider block

Write a Terraform configuration that defines the AWS provider with region set to us-east-1. Create a file called main.tf and add the provider block exactly as shown.

Terraform

# Your code here

Need a hint?

The provider block tells Terraform which cloud to work with and where.

2

Add a variable for the bucket name

Add a Terraform variable called bucket_name with a default value of my-terraform-bucket. This variable will hold the name of the S3 bucket.

Terraform

provider "aws" {
  region = "us-east-1"
}

# Your code here

Need a hint?

Variables let you change values without editing the main code.

3

Create an S3 bucket resource using the variable

Add a resource block to create an AWS S3 bucket. Use the variable bucket_name for the bucket's name by referencing var.bucket_name.

Terraform

provider "aws" {
  region = "us-east-1"
}

variable "bucket_name" {
  type = string
  default = "my-terraform-bucket"
}

# Your code here

Need a hint?

Resources define what cloud parts you want to create.

4

Add output to show the bucket name

Add an output block named bucket_id that outputs the bucket's ID using aws_s3_bucket.my_bucket.id. This helps see the result after deployment.

Terraform

provider "aws" {
  region = "us-east-1"
}

variable "bucket_name" {
  type = string
  default = "my-terraform-bucket"
}

resource "aws_s3_bucket" "my_bucket" {
  bucket = var.bucket_name
}

# Your code here

Need a hint?

Outputs show important info after Terraform runs.