The Terraform Book

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Chapter 3: Building an application stack with Terraform NOTE You can find the code for this chapter on GitHub. Let’s create a new file to hold our stack configuration, a file to define our variables, and a file to populate our variables. Listing 3.25: Creating the stack files $ touch web.tf variables.tf terraform.tfvars Let’s begin by populating our variables.tf file. Version: v1.1.1 (e771e4d) 19
Chapter 3: Building an application stack with Terraform Listing 3.26: Our variables.tf file variable "access_key" { description = "The AWS access key." } variable "secret_key" { description = "The AWS secret key." } variable "region" { description = "The AWS region." } variable "key_name" { description = "The AWS key pair to use for resources." } variable "ami" { type = "map" description = "A map of AMIs." default = {} } variable "instance_type" { description = "The instance type." default = "t2.micro" } Note that we’ve used variables similar to our example in Chapter 2. We’ve also added a few new variables, including the name of a key pair we’re going to use for our instances, and a map that will specify the AMI we wish to use. TIP You should have created a key pair when you set up AWS. Let’s populate some of these variables by adding definitions to our terraform. tfvars file. Version: v1.1.1 (e771e4d) 20
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The Terraform Book

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