Profiles and Roles with Hiera / Puppet 3

hiera.yaml

---
:backends:
  - yaml
  - gpg

:gpg:
  :datadir: '/etc/puppet/hiera'
:yaml:
  :datadir: '/etc/puppet/hiera'

:logger: console

:hierarchy:
  - nodes/%{::clientcert}-%{calling_module}
  - role/%{calling_class}
  - profile/%{calling_class}
  - common/%{calling_module}
  - common/common

profile.pp

class profile {
  $roles = hiera_array('profile::roles',[])
  include $roles
}

class profile::puppetmaster inherits profile {}
class profile::dedicated-db inherits profile {}

profile::puppetmaster.yaml

---
roles:
 - puppetmaster
 - puppetdb
 - webserver

role.pp

class role {
  $classes = hiera_array('role::classes',[])
  include $classes
}

class role::puppetmaster inherits role {}
class role::puppetdb inherits role {}

role::puppetdb.yaml

---
role::classes:
 - puppet::db
 - postgresql
 - psql_tools

site.pp

node default {
  include $::profile
}

Did you try module_name ?
I had better luck with it than calling_class