You're reading from Terraform Cookbook Master Infrastructure as Code efficiency with real-world Azure automation using Terraform

Product type Paperback

Published in Aug 2023

Publisher Packt

ISBN-13 9781804616420

Length 634 pages

Edition 2nd Edition

Tools

Azure

Concepts

DevOps

Author (1):

Mikael Krief

View More author details

Table of Contents (20) Chapters

Preface

1. Setting Up the Terraform Environment

2. Writing Terraform Configurations FREE CHAPTER

3. Scaling Your Infrastructure with Terraform

4. Using Terraform with External Data

5. Managing Terraform State

6. Applying a Basic Terraform Workflow

7. Sharing Terraform Configuration with Modules

8. Provisioning Azure Infrastructure with Terraform

9. Getting Starting to Provisioning AWS and GCP Infrastructure Using Terraform

10. Using Terraform for Docker and Kubernetes Deployment

11. Running Test and Compliance Security on Terraform Configuration

12. Deep-Diving into Terraform

13. Automating Terraform Execution in a CI/CD Pipeline

14. Using Terraform Cloud to Improve Team Collaboration

15. Troubleshooting Terraform Errors

16. Other Books You May Enjoy

17. Index

Appendix A: Terraform Cheat Sheet

1. Appendix B: Terraform Resources

Provisioning multiple resources with the count meta-argument

In many corporate scenarios, there is a need to provide infrastructure and to consider the so-called horizontal scalability, that is, N identical resources that will reduce the load on individual resources (such as compute instances) and the application.

The challenges we will have to face are as follows:

Writing Terraform configuration that does not require duplicate code for each instance of the identical resources to be provisioned
Being able to rapidly increase or reduce the number of instances of these resources

We will see in this recipe how Terraform makes it possible to provision N instances of resources quickly and without the duplication of code.

Getting ready

To begin, we will use a Terraform configuration that allows us to provision one Azure app service, which is in a main.tf file and of which the following is an extract: