IA03 · Infrastructure as Code & policy

CloudFormation/CDK Synth, Lint & Gate

Synthesize a CDK app, lint the template and gate deployment on the change set.

📶 L300⏱ 60 min🧪 Live lab

🎯 You will learn to

Synthesize templates
Lint
Gate on change sets

🧪 Live environment

Runs entirely in your browser: nothing is installed, no real cloud account is used and your code is never sent to our server.

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✅ Steps & checkpoints

Create the change set
Lint the template
Fix the finding
Execute

🗺️ CDK synth to deploy

CDK code synthesises a template; a linter and the change set gate the deployment.

The 2D diagram shows the exact flow, ports and trust boundaries. The 3D scene is a concept view of the same parts; packets travel along the same arrows.

🤔 Think about it

Why lint generated templates too?

Your answer (kept only on this device)

🛡️ Safety & cost

Every apply here is simulated. Always review a real plan before you apply it.

🧹 Cleanup

Run destroy in the simulator, and in real life check that state is empty.

📚 Reference documents

Official sources, checked on 5 Nov 2026. Cloud services change often; check the official page before relying on a feature. All references