TA-002-P Question #399: Real Exam Question with Answer & Explanation

The correct answer is A: Append ref=v1. 0. 0 argument to the source path Most Voted. When referencing a Terraform module stored in a Git repository, a specific tag or commit is selected by appending a ref query parameter to the source URL.

Interact with Terraform modules

Question

Which is the best way to specify a tag of v1.0.0 when referencing a module stored in Git (for example git::https://example.com/vpc.git)?

Options

AAppend ref=v1. 0. 0 argument to the source path Most Voted
BAdd version = "1.0.0" parameter to module block
CNothing " modules stored on GitHub always default to version 1.0.0
DModules stored on GitHub do not support versioning

Explanation

When referencing a Terraform module stored in a Git repository, a specific tag or commit is selected by appending a ref query parameter to the source URL.

Common mistakes.

B. The 'version' parameter in a module block is only valid for modules sourced from the Terraform Registry - Git-based sources use the ref URL query argument instead.
C. Git-sourced modules do not default to any fixed version automatically; without a ref argument, Terraform uses the repository's default branch, not a pinned version.
D. Git-sourced modules fully support versioning through the ref query argument, making this statement factually incorrect.

Concept tested. Pinning Git module source to a specific version tag

Reference. https://developer.hashicorp.com/terraform/language/modules/sources#selecting-a-revision

Topics

#Terraform modules#Git module source#Module versioning#Source URL syntax

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