Book Image

Getting Started with Terraform

By : Kirill Shirinkin
Book Image

Getting Started with Terraform

By: Kirill Shirinkin

Overview of this book

Terraform is a tool used to efficiently build, configure, and improve production infrastructure. It can manage existing infrastructure as well as create custom in-house solutions. This book shows you when and how to implement infrastructure as a code practices with Terraform. It covers everything necessary to set up complete management of infrastructure with Terraform, starting with the basics of using providers and resources. This book is a comprehensive guide that begins with very small infrastructure templates and takes you all the way to managing complex systems, all using concrete examples that evolve over the course of the book. It finishes with the complete workflow of managing a production infrastructure as code – this is achieved with the help of version control and continuous integration. At the end of this book, you will be familiar with advanced techniques such as multi-provider support and multiple remote modules.
Table of Contents (15 chapters)
Getting Started with Terraform
About the Author
About the Reviewer
Customer Feedback

Destroying everything we've built

Destroying infrastructure with Terraform is as easy as or even easier than creating it. All you need to do is to run the terraform destroy command, as shown here: 

$> terraform destroy
Do you really want to destroy?
  Terraform will delete all your managed infrastructure.
  There is no undo. Only 'yes' will be accepted to confirm.
  Enter a value: 

Terraform is nice enough to ask you for a confirmation, in case you typed the terraform destroy command by accident:

aws_instance.hello-instance: Refreshing state... (ID: i-06f88fe6a2b4307b8)
aws_instance.hello-instance: Destroying...
aws_instance.hello-instance: Still destroying... (10s elapsed)
aws_instance.hello-instance: Still destroying... (20s elapsed)
aws_instance.hello-instance: Destruction complete
Apply complete! Resources: 0 added, 0 changed, 1 destroyed.

If we want to get rid of only one particular resource from our template, we don't need to run the terraform destroy command. We could simply remove...