Working with Terraform Functions

Lab Steps

Configure Terraform AWS Credentials
Observing Functions with the Terraform Console
Configuring Dynamic User Data with Terraform Functions

Ready for the real environment experience?

Time Limit45m


Terraform Functions can be used in an application to dynamically retrieve or manipulate the configuration values of your cloud resources.

Use cases of Terraform functions include:

  • Capturing or displaying timestamps
  • Encoding or decoding sensitive information
  • Referencing elements from a map or list
  • Reading the contents of a configuration file

Terraform functions, along with input variables, allow developers to abstract specific values from their infrastructure as code as they strive to create resource definitions that are entirely reusable.

In this lab, you will work with the Terraform console to evaluate the various built-in function types. You will also incorporate a common Terraform function into an application to deploy an EC2 instance.

Learning Objectives

Upon completion of this intermediate-level lab, you will be able to:

  • Use the Terraform Console to evaluate function calls
  • Use Terraform functions in an application deployment

Intended Audience

  • Cloud Architects
  • DevOps Engineers
  • Software Engineers


Familiarity with the following will be beneficial but is not required:

  • Terraform Console
  • Terraform Functions
  • Amazon EC2

The following content can be used to fulfill the prerequisite:

About the Author
Learning paths3

Jun is a Cloud Labs Developer with previous experience as a Software Engineer and Cloud Developer. He holds the AWS Certified Solutions Architect and DevOps Engineer Professional certifications. He also holds the AWS Certified Solutions Architect, Developer, and SysOps Administrator Associate certifications. 

Jun is focused on giving back to the growing cloud community by sharing his knowledge and experience with students and creating engaging content. 

Covered Topics