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HashiCorp Infrastructure Automation Certification Guide

HashiCorp Infrastructure Automation Certification Guide

By : Ravi Mishra
4.1 (11)
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HashiCorp Infrastructure Automation Certification Guide

HashiCorp Infrastructure Automation Certification Guide

4.1 (11)
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)
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1
Section 1: The Basics
4
Section 2: Core Concepts
10
Section 3: Managing Infrastructure with Terraform
14
Chapter 11: Terraform Glossary

Understanding Terraform loops

In this section, we will be discussing different methods of Terraform loops. Like other programming languages, Terraform also supports some sorts of loops and this will help you to perform N number of Terraform operations very smoothly. Let's try to understand this with an example. Suppose you are working with your colleague, Mark, in one of the multinational companies (MNCs). You are both discussing one of the requirements – the need to deploy an Azure virtual network with 10 different subnets along with a Network Security Group (NSG) associated with all these subnets. You tell Mark that this can be easily done using Terraform loops rather than writing the same code block for the subnet again and again.

We will explain how effectively we can write our Terraform configuration code block using Terraform loops. The following loops are supported by Terraform:

  • count: Looping over resources
  • for_each: Looping over resources and inline...

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