Infrastructure as Code

Try the local create-only Terraform Plan Preview with variables, locals, resource references, and outputs.

Practice repairing a small Terraform root module, reading a first plan, and applying only after review.

Practice provider setup, managed resources, read-only data sources, and ownership decisions.

Practice moving outside choices into variables, naming module decisions with locals, exposing review outputs, and judging sensitive values.

Practice shaping S3 backend config and judging local state, lock conflicts, and sensitive state handling.

Review Terraform plan summaries, replacement markers, redacted values, and drift evidence before an apply.

Call a Terraform child module, shape its input and output contract, and judge when a module is too thin.

Repair environment root modules, separate production values, and review state and workspace boundaries.

Adopt existing infrastructure with resource blocks, import blocks, ownership decisions, and first-plan review.

Make Terraform changes reviewable in pull requests, add a safe GitHub Actions plan workflow, and choose responsible apply, credential, backend, and lock boundaries.

Practice Ansible responsibility boundaries, first playbook shape, and run result interpretation.

Repair YAML inventories, group variables, canary targets, and connection-scope decisions.

Practice desired-state tasks for packages, directories, services, and idempotency review.

Practice group variables, variable use in tasks, fact-gated tasks, and precedence decisions.

Practice Ansible file modules for templates, directories, static files, and single-line service settings.

Practice handler notifications, reloads, restarts, and restart timing decisions.

Practice role calls, role task structure, defaults, and reuse review decisions.

Practice referencing vaulted values, avoiding secret logs, and choosing safe Vault workflows.

Practice check and diff decisions, serial batches, health checks, and rollout failure judgment.