Fn::GetStackOutput — Referencing CloudFormation Outputs Across AWS Accounts
In a previous post on Shared VPC, we set up an architecture where the network account owns and manages the Amazon Virtual Private Cloud (VPC)—subnets, route tables, NAT Gateways, AWS Transit Gateway—and other AWS accounts (by team or project) come in to deploy their workloads using the shared subnets via AWS Resource Access Manager (RAM). This…
Cross-account CloudFormation stack references now simplified with Fn::GetStackOutput
AWS has introduced a new intrinsic function, Fn::GetStackOutput, to elegantly address the challenge of accessing AWS CloudFormation outputs across different AWS accounts for a shared VPC architecture. This function resolves the value of outputs from another stack at deployment time, enabling seamless communication between AWS accounts. The article delves into the practical implications of this new feature for multi-account VPC deployments.
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