Why Learn Terraform?

Terraform is one of the top IaC tools used by companies building and scaling infrastructure in multi-cloud and hybrid cloud environments.

It works with major platforms like AWS, Azure, Google Cloud, and many other providers. It uses its own domain language, (HCL) which is human-readable and simple to learn.

Terraform helps you:

• Automate the setup of cloud services
• Version control your infrastructure
• Eliminate manual steps and human error
• Save time and money by avoiding repetitive tasks
• Reuse infrastructure code across teams and projects

Learning Terraform makes you a more valuable DevOps or Cloud Engineer.

What’s Inside This Book?

This beginner-friendly guide takes you through Terraform basics and prepares you to build real projects.

You'll learn how to:

• Understand what Infrastructure as Code means and why it's used to manage modern infrastructure.
• Install and configure Terraform CLI and use HCL syntax to write configuration files.
• Structure Terraform projects with .tf files for providers, variables, resources, and outputs.
• Split and reuse code using Terraform modules.
• Set up providers like GitHub, and create resources such as repositories with code.
• Connect Terraform to GitHub Actions for CI/CD automation of your deployments.
• Work with Terraform state files, and understand how local vs remote state works for collaboration and versioning.
• Import existing infrastructure (e.g., GitHub repos) and start managing it with Terraform.
• Use Terraform workspaces to separate environments like dev and prod.
• Test Terraform code using validation, static analysis, and Terratest.
• Understand common Terraform errors and debug them with built-in tools and troubleshooting techniques.
• Provision a managed PostgreSQL database on Render using open-source tools only.

Why This Book?

All lessons are step-by-step, with hands-on practice, use case examples, and visual diagrams to make learning faster and easier.

You’ll start with the Terraform setup and progress to CI/CD and real-world examples.

You’ll use only free tools and services. No paid accounts or subscriptions are required.

Who Should Read This Book?

This book is for DevOps beginners, cloud learners, and self-taught engineers who want to start using Infrastructure as Code.

If you're new to Terraform, or you’ve tried tutorials but want a full walkthrough, this guide is for you.