Optimizing Terraform Configurations with Loops in GCP

Lab Steps

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Activating the Google Cloud Platform Service Account
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Multiplying Resource Configurations with Count and For Loops in Terraform
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Iterating Through a Set with For Each in Terraform

The hands-on lab is part of this learning path

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DifficultyIntermediate
Time Limit45m
Students96
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Description

The D.R.Y. principle, "Don't Repeat Yourself", is generally followed by developers in the Terraform community. Terraform offers iteration options such as for loops to allow developers to define resources or settings once, and have those configurations multiplied and managed as a group. This results in less code for a team to manage in the long run.

Terraform has three main iteration options: the count and for_each arguments, and for loops. In this lab, you will implement each one of these options and learn how to choose the right option to meet your needs.

Learning Objectives

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

  • Iterate through lists and sets with for loops, for_each, and the count argument
  • Identify the limitations of each iteration option and how to choose between them

Intended Audience

  • Individuals looking to pass the HashiCorp Certified: Terraform Associate Exam
  • Individuals and teams seeking an introduction to using Terraform with Google Cloud Platform

Prerequisites

Familiarity with the following will be beneficial but is not required:

  • Basic concepts of Google Cloud Platform
  • Terraform Variables

The following lab can be used to fulfill the prerequisites:

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About the Author
Students20596
Labs64
Learning paths3

Jun is a Cloud Labs Developer with previous experience as a Software Engineer and Cloud Developer. He holds the AWS Certified Solutions Architect and DevOps Engineer Professional certifications. He also holds the AWS Certified Solutions Architect, Developer, and SysOps Administrator Associate certifications. 

Jun is focused on giving back to the growing cloud community by sharing his knowledge and experience with students and creating engaging content.