The Terraform Book
TheTerraformBook_sample
TheTerraformBook_sample
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Chapter 3: Building an application stack with <strong>Terraform</strong><br />
suffix can be a branch name, a tag, or a commit. Here we’re downloading the<br />
production branch of the module in the tf_vpc repository.<br />
You can find a full list of the potential sources and how to configure them in the<br />
module source documentation.<br />
Module structure<br />
Inside our vpc directory our module is identical to any other <strong>Terraform</strong> configuration.<br />
It will have variables, variable definitions, and resources.<br />
Variables<br />
Let’s start with creating a file to hold the module’s variables. We’ll use a file called<br />
interface.tf.<br />
TIP <strong>The</strong> explicit file name makes it clear that this is the module’s API, the<br />
interface to the module.<br />
Listing 3.41: Creating the vpc module variables<br />
$ cd vpc<br />
$ touch interface.tf<br />
We populate this file with the variables we’ll use to configure the VPC that the<br />
module is going to build.<br />
Version: v1.1.1 (e771e4d) 31
Change language