Comment 4 for bug 1449058

Authenticating to nova using nova_admin_* options is deprecated.
  CONF.nova_admin_auth_ur
  CONF.nova_admin_username
  CONF.nova_admin_password
  CONF.nova_admin_tenant_id
  CONF.nova_admin_tenant_name

This should be done using an auth plugin, like password:
  [nova]
  region_name = RegionOne
  project_domain_id = default
  project_name = service
  user_domain_id = default
  password = passw0rd
  username = nova
  auth_url = http://127.0.0.1:35357
  auth_plugin = password