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by epberry 1320 days ago
Very nice write up. As a billing guy I especially liked the tip about using resource policies to enable cross-account access and save on KMS request costs.

There's one issue with companies using hundreds of AWS accounts if you're a vendor to them: integrating services. Some folks here may be interested in a technique called "CloudFormation StackSets" which can deploy bits of infrastructure to multiple AWS accounts in one command. Vantage uses this to setup our billing integration and we wrote up the method here, https://www.vantage.sh/blog/using-cloudformation-stacksets-t...