"AWS CloudFormation makes it easy to model and provision your cloud application infrastructure as code. CloudFormation templates can be written directly in JSON or YAML, or they can be generated by tools like the AWS Cloud Development Kit (CDK). Resources are created and managed by CloudFormation as units called Stacks."
"Managing infrastructure across multiple AWS accounts and Regions is a common pattern for organizations adopting AWS best practices like multi-account strategies. However, sharing infrastructure values, such as VPC IDs, subnet configurations, or database endpoints, between stacks in different accounts or Regions has historically required multiple manual steps."
"Today, we're excited to announce Fn::GetStackOutput, a new CloudFormation intrinsic function that lets you reference stack outputs across accounts and Regions directly in your CloudFormation templates and AWS CDK applications."
"Previously, you had two options: Fn::ImportValue with exports worked well within the same account and Region but did not support cross-account or cross-Region references. Manual approaches such as copying values between templates, passing parameters through CI/CD pipelines, or maintaining custom automation to keep values in syn"
AWS CloudFormation provisions infrastructure as code using templates written in JSON or YAML or generated by AWS CDK. Resources are managed in units called Stacks. Multi-account and multi-Region AWS environments often require sharing infrastructure values such as VPC IDs, subnet configurations, and database endpoints across organizational boundaries. Previously, Fn::ImportValue supported exports only within the same account and Region, while cross-account or cross-Region sharing required manual steps like copying values between templates, passing parameters through CI/CD pipelines, or maintaining custom automation. Fn::GetStackOutput is introduced as a CloudFormation intrinsic function that references stack outputs across accounts and Regions directly in CloudFormation templates and AWS CDK applications, with practical examples provided for getting started.
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