This lesson focuses on Post-Deployment Tests, Drift, Rollback, and Pipeline Operations and its role in the wider delivering Azure infrastructure with Terraform through Azure Repos, pull requests, YAML pipelines, secure service connections, remote state, artifacts, approvals, and release validation workflow.
Learners work with the actual design choices, dependencies, controls, and failure modes that distinguish this topic from a generic Terraform exercise.
Fail a post-deployment test and determine the safest recovery action.
Add a drift-detection schedule and an operator-friendly run summary.
The run proves what changed, where it changed, who approved it, and whether the deployed service works.
Recover from partial apply, Azure eventual consistency, expired identity, drift, and failed post-checks.
Learners isolate the smallest verified cause, correct it, rerun the relevant validation step, and record the preventive action in the course improvement log.