Terraform's declarative approach - Mini Project: Build & Apply

Terraform's Declarative Approach

📖 Scenario: You are setting up a simple cloud infrastructure using Terraform. You want to create a virtual private cloud (VPC) with a specific CIDR block to isolate your resources.

🎯 Goal: Build a Terraform configuration that declares a VPC resource with a fixed CIDR block using Terraform's declarative syntax.

📋 What You'll Learn

Create a Terraform configuration file named main.tf.

Declare a resource of type aws_vpc named main_vpc.

Set the cidr_block attribute of the VPC to 10.0.0.0/16.

Use Terraform's declarative syntax to define the resource.

💡 Why This Matters

🌍 Real World

Terraform is widely used to manage cloud infrastructure by declaring resources in code, making deployments repeatable and consistent.

💼 Career

Understanding Terraform's declarative syntax is essential for cloud engineers and DevOps professionals to automate infrastructure provisioning.

1

Declare the AWS provider

Write a Terraform block to declare the aws provider with the region set to us-east-1.

Terraform

# Declare the aws provider with region us-east-1
# Your code here

Need a hint?

The provider block tells Terraform which cloud provider and region to use.

2

Declare the VPC resource

Add a Terraform resource block to declare an aws_vpc resource named main_vpc.

Terraform

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

# Declare aws_vpc resource named main_vpc
# Your code here

Need a hint?

Use the resource keyword followed by the resource type and name.

3

Set the CIDR block for the VPC

Inside the aws_vpc resource named main_vpc, set the cidr_block attribute to 10.0.0.0/16.

Terraform

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

resource "aws_vpc" "main_vpc" {
  # Set cidr_block to 10.0.0.0/16
  # Your code here
}

Need a hint?

The cidr_block defines the IP address range for the VPC.

4

Add a tag to the VPC

Add a tags block inside the aws_vpc resource named main_vpc with a tag Name set to MyVPC.

Terraform

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

resource "aws_vpc" "main_vpc" {
  cidr_block = "10.0.0.0/16"
  # Add tags block with Name = MyVPC
  # Your code here
}

Need a hint?

Tags help identify resources in the cloud console.