Module sources (local, registry, git) in Terraform - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a local module source in Terraform?

A local module source is a module stored on your computer or project folder. You use a relative or absolute path to include it in your Terraform configuration.

beginner

How do you specify a registry module source in Terraform?

You specify a registry module source by using the module's name from the Terraform Registry, usually in the format namespace/name/provider. Terraform downloads it automatically.

intermediate

What is the purpose of using a git module source in Terraform?

A git module source lets you use a module stored in a git repository. You provide the git URL, and optionally a branch, tag, or commit to use specific code versions.

beginner

Example: How to reference a local module in Terraform?

Use source = "./modules/my_module" inside the module block to point to a folder named my_module inside a modules directory.

intermediate

What is the syntax to use a git module source with a specific branch?

Use source = "git::https://github.com/user/repo.git?ref=branch-name" to get the module from a specific branch in the git repository.

Which source format is used to include a module stored on your local machine?

A A relative or absolute file path

B A URL to a git repository

C A module name from Terraform Registry

D An HTTP URL to a zip file

Local modules use file paths to point to folders on your computer.

How do you specify a module from the Terraform Registry?

A Using <namespace>/<name>/<provider> format

B Using a path starting with ./ or ../

C Using a git URL with ref parameter

D Using an HTTP URL to a zip archive

Registry modules use the format namespace/name/provider to identify modules.

What does the 'ref' parameter do in a git module source URL?

A Defines the module version in the registry

B Specifies the branch, tag, or commit to use

C Sets the local path for the module

D Indicates the provider for the module

The 'ref' parameter tells Terraform which git branch, tag, or commit to use.

Which of these is a valid git module source URL?

A https://example.com/module.zip

B ./modules/my_module

C git::https://github.com/user/repo.git?ref=v1.0.0

D hashicorp/aws

Git module sources start with 'git::' followed by the repository URL and optional ref.

If you want to use a module stored in a folder named 'network' inside your project, what source do you use?

A network

B git::network

C hashicorp/network/aws

D ./network

Local modules require a relative path starting with './' to specify the folder.

Explain the differences between local, registry, and git module sources in Terraform.

Think about where the module code is stored and how Terraform accesses it.

Describe how to specify a git module source with a specific branch in Terraform.

Remember the URL format and the ref parameter.