Book Image

HashiCorp Infrastructure Automation Certification Guide

By : Ravi Mishra
Book Image

HashiCorp Infrastructure Automation Certification Guide

By: Ravi Mishra

Overview of this book

Terraform is a highly sought-after technology for orchestrating infrastructure provisioning. This book is a complete reference guide to enhancing your infrastructure automation skills, offering up-to-date coverage of the HashiCorp infrastructure automation certification exam. This book is written in a clear and practical way with self-assessment questions and mock exams that will help you from a HashiCorp infrastructure automation certification exam perspective. This book covers end-to-end activities with Terraform, such as installation, writing its configuration file, Terraform modules, backend configurations, data sources, and infrastructure provisioning. You'll also get to grips with complex enterprise infrastructures and discover how to create thousands of resources with a single click. As you advance, you'll get a clear understanding of maintaining infrastructure as code (IaC) in Repo/GitHub, along with learning how to create, modify, and remove infrastructure resources as and when needed. Finally, you'll learn about Terraform Cloud and Enterprise and their enhanced features. By the end of this book, you'll have a handy, up-to-date desktop reference guide along with everything you need to pass the HashiCorp Certified: Terraform Associate exam with confidence.
Table of Contents (17 chapters)
1
Section 1: The Basics
4
Section 2: Core Concepts
10
Section 3: Managing Infrastructure with Terraform
14
Chapter 11: Terraform Glossary

Knowing about Terraform resources

Having acquired a good understanding of Terraform providers, now we are going to discuss resources in Terraform. Let's try to understand how a resource code block is defined in the Terraform configuration file and why it is so important. First of all, let's see what a Terraform resource is.

Terraform resources

Resources are the most important code blocks in the Terraform language. By defining a resource code block in the configuration file, you are letting Terraform know which infrastructure objects you are planning to create, delete, or update, such as compute, virtual network, or higher-level PaaS components, such as web apps and databases. When you define a resource code block in the configuration file, it starts with the provider name at the very beginning, for example, aws_instance, azurerm_subnet, and google_app_engine_application.

Azure Terraform resource

It is very important for you to understand how you should write your...