🔧 Validate and Preview

Use this checklist to confirm configuration changes before deploying.

1. Run a diff for each affected stack

stackaroo diff development payment-app-network
stackaroo diff production payment-app-service

• Start with non-production contexts to verify credentials and permissions.
• Review the output for each stack—Stackaroo highlights template, parameter, and tag changes.

2. Investigate validation errors

Common causes:

• Missing template files or typos in the template path.
• Incorrect stack_name or output_key values when referencing stack outputs.
• Parameters that break CloudFormation type constraints (for example, malformed CIDR blocks).

Fix the configuration and rerun stackaroo diff until it completes without errors.

3. Capture a final review

• Share the diff output in pull requests or chat for team approval.
• Once satisfied, proceed with stackaroo deploy <context> <stack> to apply the changes.

Keeping this loop tight reduces surprises and keeps deployments predictable.