As I have discussed in the past, our customers use multiple AWS accounts for many different reasons. Some of them use accounts to create administrative and billing boundaries; others use them to control the blast radius around any mistakes that they make.
Even though all of this isolation is a net positive for our customers, it turns out that certain types of sharing can be useful and beneficial. For example, many customers want to create resources centrally and share them across accounts in order to reduce management overhead and operational costs.
AWS Resource Access Manager The new AWS Resource Access Manager (RAM) facilitates resource sharing between AWS accounts. It makes it easy to share resources within your AWS Organization and can be used from the Console, CLI, or through a set of APIs. We are launching with support for Route 53 Resolver Rules (announced yesterday in Shaun’s excellent post) and
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