How to register RDS instance with CloudMap

Question

I know this is possible through the AWS CLI and Console as I have done it like this but I would now need to do it in Terraform. I would like to execute the equivalent of the CLI command as aws servicediscovery register-instance.

Pointing to any documentation or examples that can be shared would be most beneficial and appreciated.

Answer 1

This is now possible using the aws_service_discovery_instance resource as of version v3.57.0 of the AWS provider.

resource "aws_service_discovery_instance" "example" {
  instance_id = "mydb"
  service_id  = aws_service_discovery_service.example.id

  attributes = {
    AWS_INSTANCE_CNAME = aws_db_instance.example.address
  }
}

Answer 2

Adding instances to the discovery service is not yet supported:

• Add an aws_service_discovery_instance resource

But pull requests has already been preprared for that, so hopefully soon:

• resource/aws_service_discovery_instance: new implementation