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Validating Templates

Explore how to effectively validate AWS CloudFormation templates using CFN Lint, yamllint, and SAM CLI validation tools. Understand the importance of catching errors early to prevent costly deployment failures and speed up your serverless development process.

YAML makes it easy to read CloudFormation template files but is very fiddly and error-prone. Small spacing issues can cause problems and that might not be immediately obvious when you read a template. ...