Terraform Baseline

Terraform baseline is:

• A set of best practices for creating reusable Terraform modules using the Azure provider.
• A library of reusable Terraform modules that have been created using these best practices.

Before using Terraform baseline, you should be familiar with the following pages from the official Terraform documentation:

• Standard Module Structure
• Style Guide
• Version Constraints
• Publishing Modules

Core principles

The best practices defined by the Terraform baseline are based on a set of core principles:

• Simplicity: The contents of a module should be minimal and simple.
• Consistency: A module should follow consistent naming conventions, structure and coding standards.
• Reusability: A module should be designed to be reusable across different projects and environments.
• Transparency: The purpose of a module should be clear and well-documented.
• Predictability: The behavior of a module should be predictable.
• Security: A module should follow security best practices to minimize risks.
• Maintainability: A module should be easy to maintain with minimal technical depth.

Usage

Version updates

Use Dependabot to keep modules you use updated to the latest versions.

Create a Dependabot configuration file .github/dependabot.yml in your repository containing the following configuration:

version: 2
updates:
  - package-ecosystem: terraform
    directories: [/terraform/**/*]
    groups:
      terraform:
        patterns: ["*"]