Gain insights into Infrastructure as Code with Terraform, sharpen your skills, and prepare for the HashiCorp Terraform Associate certification in a cloud-agnostic way.

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This course is designed to help learners obtain the Terraform Associate certification from HashiCorp. 

You’ve likely picked up this course because you dabbled in Terraform as a hobbyist or in a
development environment, and you’re excited about the possibilities of deploying Infrastructure 
as Code (IaC). It will enable you to sharpen your skills and prove your knowledge with a certification from HashiCorp. Terraform is an amazing tool to deploy Infrastructure as Code in a cloud-agnostic way. We’re excited to share our accumulated knowledge with you through this course.

HashiCorp Terraform Certified Associate Preparation Guide

In the previous lesson, we saw an example of a virtual network with a single subnet defined as a nested block.


  subnet {
    name           = "subnet1"
    address_prefix = cidrsubnet(var.address_space[0],8,1)
  }

A virtual network will typically involve more than one subnet. We could define a separate nested block for each subnet, but that’s not a scalable or dynamic approach. It makes more sense to dynamically generate the nested blocks based on the values in variables. The mechanism for creating the nested blocks is called `dynamic` blocks.


![](/api/collection/10370001/6444696643043328/page/5657380307599360/image/5133755928281088?page_type=collection_lesson)



A `dynamic` block can be used inside resources, data sources, providers, and provisioners. It works in a similar way to the `for` expression that produces a collection of either list or map types. A `dynamic` block expression produces one or more nested blocks. The syntax can be confusing, so let’s first look at an example based on our subnet configuration.


Learn how to configure a resource using a dynamic block.

Introduction to the Course

Introduction to Infrastructure as Code

Basics of Terraform

Outside the Workflow: Using the Terraform CLI

Terraform Modules

Navigate Terraform Workflow

Implement and Maintain State

Read, Generate, and Modify Configuration

Understand Terraform Enterprise Capabilities

Conclusion

Configure Resource Using a dynamic Block

The `dynamic` block

Configure Resource Using a dynamic Block

The dynamic block

The `dynamic` block