Book Image

Getting Started with Terraform - Second Edition

By : Kirill Shirinkin
1 (1)
Book Image

Getting Started with Terraform - Second Edition

1 (1)
By: Kirill Shirinkin

Overview of this book

Terraform is a tool used to efficiently build, configure, and improve the production infrastructure. It can manage the 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 the complete management of infrastructure with Terraform, starting with the basics of using providers and resources. It 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. The book ends with the complete workflow of managing a production infrastructure as code—this is achieved with the help of version control and continuous integration. The readers will also learn how to combine multiple providers in a single template and manage different code bases with many complex modules. It focuses on how to set up continuous integration for the infrastructure code. The readers will be able to use Terraform to build, change, and combine infrastructure safely and efficiently.
Table of Contents (15 chapters)
Title Page
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 destroyDo 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 completeApply 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 this resource...