What happened to --profile option for create-domain asadmin subcommand

I am in the process of upgrading glassfish from 2.1.1 to 3.1.1. I see from
the documentation that --profile option for create-domain doesn't do
anything anymore. We made use of custom templates in 2.1.1. How should we
go about migrating this over? Does it have anything to do with the new
domain initializes?