Reliability pillar principles in AWS - Mini Project: Build & Apply

Understanding AWS Reliability Pillar Principles

📖 Scenario: You are working as a cloud architect for a small company. Your team wants to build a reliable web application on AWS that stays available and recovers quickly from failures.

🎯 Goal: Learn and apply the core principles of the AWS Reliability Pillar by creating a simple AWS infrastructure setup that follows these principles.

📋 What You'll Learn

Create a dictionary with AWS reliability principles and their descriptions

Add a variable to select a principle to focus on

Write a loop to print the selected principle and its description

Add a final statement confirming the reliability principle focus

💡 Why This Matters

🌍 Real World

Understanding and applying AWS Reliability Pillar principles helps build cloud systems that stay available and recover quickly from problems.

💼 Career

Cloud architects and engineers use these principles daily to design and maintain reliable AWS infrastructure.

1

Create AWS Reliability Principles Dictionary

Create a dictionary called reliability_principles with these exact entries: 'Foundations' mapped to 'Establish a reliable base by setting up AWS accounts and networking', 'Change Management' mapped to 'Manage changes carefully to avoid failures', and 'Failure Management' mapped to 'Prepare for and recover from failures quickly'.

AWS

# Your code here

Need a hint?

Use a Python dictionary with the exact keys and values given.

2

Select a Reliability Principle

Add a variable called selected_principle and set it to the string 'Failure Management'.

AWS

reliability_principles = {
    'Foundations': 'Establish a reliable base by setting up AWS accounts and networking',
    'Change Management': 'Manage changes carefully to avoid failures',
    'Failure Management': 'Prepare for and recover from failures quickly'
}
# Your code here

Need a hint?

Assign the exact string to the variable.

3

Print Selected Principle and Description

Use a for loop with variables principle and description to iterate over reliability_principles.items(). Inside the loop, write an if statement to check if principle equals selected_principle. If yes, assign a variable output to the string combining principle and description separated by a colon and a space.

AWS

reliability_principles = {
    'Foundations': 'Establish a reliable base by setting up AWS accounts and networking',
    'Change Management': 'Manage changes carefully to avoid failures',
    'Failure Management': 'Prepare for and recover from failures quickly'
}

selected_principle = 'Failure Management'

# Your code here

Need a hint?

Use a for loop and an if condition to find the selected principle and create the output string.

4

Confirm Reliability Principle Focus

Add a variable called confirmation and set it to the string 'Focused on AWS Reliability Pillar principle'.

AWS

reliability_principles = {
    'Foundations': 'Establish a reliable base by setting up AWS accounts and networking',
    'Change Management': 'Manage changes carefully to avoid failures',
    'Failure Management': 'Prepare for and recover from failures quickly'
}

selected_principle = 'Failure Management'

for principle, description in reliability_principles.items():
    if principle == selected_principle:
        output = f"{principle}: {description}"

# Your code here

Need a hint?

Assign the exact string to the variable.