This plugin adds just one rkae task to generate user databags for chef. The cookbook I use is this http://community.opscode.com/cookbooks/users.
Simply do this single line.
RAIlS_ENV=production rake user_databag:generate
This command creates userdata bags. and just copy them to your chef repository and finish!
Copyright (c) 2011 Yuki Nishijima email@example.com, released under the MIT license