HashiCorp Terraform 003 Module Sources Guide

This lesson matters because module questions are usually interface questions in disguise. You need to know where the module comes from, what inputs it expects, and what outputs it exposes.

Module chooser

Decision order that usually wins

1. Ask whether the question is about source, inputs, or outputs.
2. Treat module calls as interface contracts, not copy-paste blobs.
3. Inspect required inputs before assuming the module is misbehaving.
4. Inspect outputs when the module’s exposed values are under test.
5. Keep modules separate from workspaces and backends in your mental model.

Common traps

Quiz