Day 7 | Terraform Modules Explained – Reuse, Structure & Practical Lab

Welcome to Day 7 of our Terraform training series! 🎉
In this session, we explore Terraform Modules — the building blocks for reusable, organized, and scalable infrastructure as code.

Terraform modules help you avoid repetition, standardize deployments, and build clean infrastructure patterns by grouping related resources into reusable components you can call from other configurations.
HashiCorp Developer

🔹 Topics Covered

✔ What are Terraform Modules — root vs child modules
✔ Why use modules — code reuse, abstraction & standards
✔ Module structure — main.tf, variables.tf, outputs.tf
✔ Calling modules — module block & source argument
✔ How to pass inputs and get outputs
✔ Benefits and best practices for module design
✔ Examples of local and remote module usage

🧪 Lab & Hands-On Examples

✔ Create a basic reusable module
✔ Use input variables to customize module behavior
✔ Retrieve values with module outputs
✔ Import and reuse modules from local folders or remote sources
✔ Compare root vs child module flows

📌 What You’ll Learn

By the end of this video, you’ll understand how to:

🔹 Organize Terraform code into reusable modules
🔹 Scale your infrastructure projects with clean, modular patterns
🔹 Share and manage modules effectively in teams

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