ARM vs Bicep vs Terraform decision in Azure - Hands-On Comparison

ARM vs Bicep vs Terraform Decision Guide

📖 Scenario: You are starting a new cloud project on Microsoft Azure. You need to decide which tool to use for managing your cloud infrastructure: ARM templates, Bicep, or Terraform.Each tool helps you create and manage resources in Azure, but they work differently and have different strengths.

🎯 Goal: Build a simple decision guide that helps you understand and compare ARM templates, Bicep, and Terraform based on key factors like ease of use, readability, and community support.

📋 What You'll Learn

Create a dictionary called tools with keys 'ARM', 'Bicep', and 'Terraform' and their descriptions as values

Add a variable called criteria listing the decision factors: 'ease_of_use', 'readability', 'community_support'

Create a nested dictionary called comparison that maps each tool to scores (1-5) for each criterion

Add a final variable called best_tool that stores the tool with the highest total score

💡 Why This Matters

🌍 Real World

Choosing the right infrastructure as code tool is important for managing cloud resources efficiently and with less errors.

💼 Career

Cloud engineers and architects often evaluate and select tools like ARM, Bicep, or Terraform to automate deployments and maintain infrastructure.

1

Create the tools dictionary

Create a dictionary called tools with these exact entries: 'ARM' mapped to 'Azure Resource Manager templates, JSON-based', 'Bicep' mapped to 'Simplified syntax for ARM templates', and 'Terraform' mapped to 'Multi-cloud infrastructure as code tool'.

Azure

# Create the tools dictionary with exact keys and descriptions
# Your code here

Need a hint?

Use curly braces to create a dictionary with the exact keys and string values.

2

Add the criteria list

Add a list called criteria containing these exact strings: 'ease_of_use', 'readability', and 'community_support'.

Azure

tools = {
    'ARM': 'Azure Resource Manager templates, JSON-based',
    'Bicep': 'Simplified syntax for ARM templates',
    'Terraform': 'Multi-cloud infrastructure as code tool'
}
# Add the criteria list below
# Your code here

Need a hint?

Create a list with the exact three strings in order.

3

Create the comparison dictionary

Create a dictionary called comparison where each key is one of the tools: 'ARM', 'Bicep', and 'Terraform'. Each value should be another dictionary mapping the criteria to these exact scores:
For 'ARM': 'ease_of_use': 2, 'readability': 2, 'community_support': 4.
For 'Bicep': 'ease_of_use': 4, 'readability': 4, 'community_support': 3.
For 'Terraform': 'ease_of_use': 3, 'readability': 3, 'community_support': 5.

Azure

tools = {
    'ARM': 'Azure Resource Manager templates, JSON-based',
    'Bicep': 'Simplified syntax for ARM templates',
    'Terraform': 'Multi-cloud infrastructure as code tool'
}
criteria = ['ease_of_use', 'readability', 'community_support']
# Create the comparison dictionary with exact nested scores
# Your code here

Need a hint?

Use nested dictionaries with exact keys and integer values.

4

Determine the best tool

Add a variable called best_tool that stores the key from comparison with the highest total score summed across all criteria. Use a dictionary comprehension or loop to sum the scores for each tool and select the one with the highest sum.

Azure

tools = {
    'ARM': 'Azure Resource Manager templates, JSON-based',
    'Bicep': 'Simplified syntax for ARM templates',
    'Terraform': 'Multi-cloud infrastructure as code tool'
}
criteria = ['ease_of_use', 'readability', 'community_support']
comparison = {
    'ARM': {'ease_of_use': 2, 'readability': 2, 'community_support': 4},
    'Bicep': {'ease_of_use': 4, 'readability': 4, 'community_support': 3},
    'Terraform': {'ease_of_use': 3, 'readability': 3, 'community_support': 5}
}
# Calculate the best_tool with the highest total score
# Your code here

Need a hint?

Use the max function with a key that sums the scores for each tool.