terraform/website/source/docs/configuration/modules.html.md

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docs Configuring Modules docs-config-modules Modules are used in Terraform to modularize and encapsulate groups of resources in your infrastructure. For more information on modules, see the dedicated modules section.

Module Configuration

Modules are used in Terraform to modularize and encapsulate groups of resources in your infrastructure. For more information on modules, see the dedicated modules section.

This page assumes you're familiar with the configuration syntax already.

Example

Module configuration looks like the following:

module "consul" {
	source = "github.com/hashicorp/consul/terraform/aws"
	servers = 5
}

Description

The module block configures a module and tells Terraform to build its resources. Multiple module blocks may be used to configure and use multiple modules.

The NAME of the module is logical: it is used only to reference the module in other places in the configuration. It has no effect on the source of the module. Therefore, you may name modules whatever you'd like.

Within the block (the { }) is configuration for the module. The only required key is source, which tells Terraform where this module can be downloaded from. Valid source values are covered in more detail in the module section.

Other configuration within the module are dependent on the module itself. Module configuration maps directly to variables within the module, so parameters can have any of the data types that variables support, including lists and maps.

Syntax

The full syntax is:

module NAME {
	source = SOURCE_URL

	CONFIG ...
}

where CONFIG is:

KEY = VALUE