This lesson focuses on Modules, Import, Drift, Cost Awareness, and Exam Review and its role in the wider combining Terraform Associate preparation with practical AWS networking, compute, identity, storage, modules, remote state, and change-control workflows workflow.
Learners work with the actual design choices, dependencies, controls, and failure modes that distinguish this topic from a generic Terraform exercise.
Import an existing AWS object and refactor the configuration without unintended replacement.
Review a plan containing security, cost, and replacement risks and produce an approval decision.
The final plan is explainable, cost-sensitive, and free of accidental destroy actions.
Correct resource addresses, module upgrades, drift, replacement triggers, and exam scenario confusion.
Learners isolate the smallest verified cause, correct it, rerun the relevant validation step, and record the preventive action in the course improvement log.