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


Provisioners in Terraform are configuration blocks available for several resources that allow you to perform some actions after the resource has been created. It is mostly useful for servers, such as EC2 instances. Provisioners can be used to bootstrap the instance, to connect it to a cluster or to run tests, as we did manually in the previous section. There are the following four types of provisioners:

  • local-exec
  • remote-exec
  • file
  • chef

Each of them has its own applications and is useful for solving one issue or another. Let's take local-exec first and see how it can help in building inventory files for Ansible.

Provisioning with local-exec and Ansible

Ansible is one of the newest and hottest open source configuration management tools. It has become increasingly popular due to its ease of use. One of the main differences with Chef and Puppet is the lack of any agent installed on the machine to configure. The only requirement is that the machine has Python preinstalled, which is most...