Why Infrastructure as Code matters in AWS - See It in Action

Why Infrastructure as Code matters

📖 Scenario: You are working as a cloud engineer for a small company. The company wants to manage its cloud resources in a way that is easy to repeat, track, and fix if something goes wrong. They heard about Infrastructure as Code (IaC) and want to try it out.

🎯 Goal: Build a simple AWS infrastructure using code to create a virtual server (EC2 instance) and understand why managing infrastructure this way is helpful.

📋 What You'll Learn

Create a dictionary with the exact AWS resource details

Add a configuration variable for the instance type

Use a loop or comprehension to prepare the resource setup

Complete the code with the final resource declaration

💡 Why This Matters

🌍 Real World

Companies use Infrastructure as Code to manage cloud resources reliably and quickly, avoiding manual setup errors.

💼 Career

Cloud engineers and DevOps professionals use IaC daily to automate and maintain cloud infrastructure efficiently.

1

Create the AWS resource details dictionary

Create a dictionary called aws_resources with these exact entries: 'EC2Instance': 'MyFirstInstance', 'AMI': 'ami-0abcdef1234567890', 'KeyName': 'MyKeyPair'

AWS

# Create the aws_resources dictionary with the specified entries
# Your code here

Need a hint?

Think of aws_resources as a list of things you want to create in AWS, with names and IDs.

2

Add the instance type configuration

Add a variable called instance_type and set it to the string 't2.micro' to specify the size of the EC2 instance.

AWS

aws_resources = {
    'EC2Instance': 'MyFirstInstance',
    'AMI': 'ami-0abcdef1234567890',
    'KeyName': 'MyKeyPair'
}
# Add the instance_type variable below
# Your code here

Need a hint?

The instance type tells AWS how powerful your virtual server should be.

3

Prepare the resource setup with a dictionary comprehension

Create a new dictionary called resource_setup using a dictionary comprehension that includes all items from aws_resources and adds a new key 'InstanceType' with the value from instance_type.

AWS

aws_resources = {
    'EC2Instance': 'MyFirstInstance',
    'AMI': 'ami-0abcdef1234567890',
    'KeyName': 'MyKeyPair'
}
instance_type = 't2.micro'
# Create resource_setup dictionary with all aws_resources plus 'InstanceType'
# Your code here

Need a hint?

Use a dictionary comprehension to copy aws_resources and then add the instance type.

4

Complete the AWS EC2 instance resource declaration

Add a variable called ec2_instance and set it to a dictionary with the keys 'Name', 'ImageId', 'KeyName', and 'InstanceType' using the corresponding values from resource_setup.

AWS

aws_resources = {
    'EC2Instance': 'MyFirstInstance',
    'AMI': 'ami-0abcdef1234567890',
    'KeyName': 'MyKeyPair'
}
instance_type = 't2.micro'
resource_setup = {key: value for key, value in aws_resources.items()}
resource_setup['InstanceType'] = instance_type
# Create ec2_instance dictionary with keys 'Name', 'ImageId', 'KeyName', 'InstanceType'
# Your code here

Need a hint?

This dictionary represents the final EC2 instance setup you would use in your Infrastructure as Code script.