Add support for EFS CreateReplicationConfiguration

[corymhall]

Name of the resource

AWS::EFS::FileSystem

Resource name

No response

Description

In January 2022 EFS released support for replication. https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/

Currently there is no way to configure this in CloudFormation. Not sure if it makes more sense to add it to the AWS::EFS::FileSystem resource or to create a new resource AWS::EFS::FileSystemReplication?

Other Details

No response

[BastiQ]

Any updates on this?

[dale-c-anderson]

One man's opinion: Since replication is currently added with cli after the the efs instance exists, it would make more sense (and be simpler) for the CF resource to also work that way.

It's no added complication for a Replication CF resource to reference an existing EFS resource, whether that EFS was created manually, or whether it was created 2 seconds before in the same CF stack.

The benefit of it being separate is that you don't end up with a chicken/egg scenario where you want to add replication to an existing resource, but you can't because the EFS you want to add it to already exists, and may not necessarily have been created by cloudformation.

[rdbatch02]

It looks like this was now added to CloudFormation https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-efs-filesystem.html#cfn-efs-filesystem-replicationconfiguration