Please clarify aws_db_instance name and identifier arguments/attributes

[hashibot]

This issue was originally opened by @edmundcraske as hashicorp/terraform#9926. It was migrated here as part of the provider split. The original body of the issue is below.

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In attempting to refer to an AWS RDS database instance by name in order to set up an RDS read replica, we have used replicate_source_db = "${aws_db_instance.my-master-db.name}" based upon the documentation at https://www.terraform.io/docs/providers/aws/r/db_instance.html#name but it appears that this is evaluating to the empty string. I spent a while trying to understand the behaviour from the source code but could not. However I did find hashicorp/terraform#2961 referring to the attribute 'identifier' although this is not in the documentation. I presume that I should be using the 'identifier' attribute - if so, can this be clarified in the documentation so as not to confuse others?

[coingraham]

Looking at the documentation on replicate_source_db it says that "This correlates to the identifier of another Amazon RDS Database to replicate." so it looks like the documentation is now correct.

[edmundcraske]

Agreed, this can now be closed. As this was copied by @hashibot I've got no rights to close it any more... Perhaps @stack72 can do the honours :)

[tombuildsstuff]

Closing @edmundcraske’s request :)

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!