Creating Terraform Modules

Build reusable infrastructure modules with inputs, outputs, and best practices

Modules are reusable collections of Terraform files. Every Terraform config has a root module.

Structure:

modules/
  vnet/
    main.tf       # Resources
    variables.tf   # Input variables
    outputs.tf     # Output values

Call a module:

hcl

module "networking" {
  source = "./modules/vnet"
  name   = "production"
}

Module sources: local path, Terraform Registry, GitHub, Git.

💡Need a hint? (3 available)

#1Modules are like functions for infrastructure

#2Variables and outputs make modules reusable

#3Module sources can be local or registry

🔑Show solution (try it yourself first!)

module "networking" {
  source = "./modules/vnet"
  name   = "production"
  location = "eastus"
  address_space = ["10.0.0.0/16"]
}

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