What problem are you facing?

Currently, "SetIdentifierArgumentFn" functions can only take "spec.forProvider" and "external-name" parameters. I'd like to pass "metadata.name" field for configuring resources like AWS MQ broker. In this resource, "broker-name" is required and the external name is generated by the cloud provider.

How could Terrajet help solve your problem?

Providing an additional mechanism to configure jet-based resources.

Original Issue by @ezgidemirel: crossplane/terrajet#280