Barbican change 'Switch to oslo_policy'
http://git.openstack.org/cgit/openstack/barbican/commit/?id=077fce673d45f2b5ed0681fe5665961ff840b341
Barbican change 'Switch to oslo_policy'
http:// git.openstack. org/cgit/ openstack/ barbican/ commit/ ?id=077fce673d4 5f2b5ed0681fe56 65961ff840b341