Keeping Terraform Remote State DRY with Terragrunt

As Terraform configurations grow to be large and complex, the code becomes harder to manage and make changes. Terragrunt is an open-source tool that acts as a thin wrapper around Terraform, enabling configurations to be "DRYer". DRY is a popular software development practice that stands for "Don't Repeat Yourself," which means don't re-use the same software pattern, avoiding redundancy. Terragrunt adds a feature that allows Terraform remote state configurations to be defined once in code and re-used throughout multiple Terraform projects.

In this lab, you will use Terragrunt to deploy a Terraform configuration in separate environments while keeping the remote state configuration DRY.

Learning objectives

Upon completion of this lab, you will be able to:

• Understand how to deploy Terraform resources with Terragrunt
• Learn how to keep the remote state configuration DRY using Terragrunt

Intended audience

This lab is intended for:

• Individuals familiar with using Terraform and how to deploy resources
• Individuals interested in learning how to use Terragrunt to increase Terraform's effectiveness
• Enterprises looking to scale their Terraform codebase

Prerequisites

You should be familiar with:

• Cloud Services
• DevOps
• Basic understanding of Terraform modules and variables

The following course and lab can be used to fulfill the prerequisites:

• Introduction to DevOps
• Creating Reusable Infrastructure with Terraform Modules
• Using Terraform Remote State

Updates

January 8th, 2024 - Lab updated to utilize CodeTour IDE