def initialize(options = {})
initialize_identity options
@openstack_service_type = options[:openstack_service_type] || ['image']
@openstack_service_name = options[:openstack_service_name]
@openstack_endpoint_type = options[:openstack_endpoint_type] || 'adminURL'
@connection_options = options[:connection_options] || {}
authenticate
set_api_path
@persistent = options[:persistent] || false
@connection = Fog::Core::Connection.new("#{@scheme}://#{@host}:#{@port}", @persistent, @connection_options)
end