Fix novclient connection

implementation/utils/connection.py

 import openstack
-from keystoneauth1.identity import v3
 from keystoneauth1 import session
+from keystoneauth1 import loading
+from novaclient import client
 
 
 class OpenStackConnection(object):
@@ -16,10 +17,16 @@ class OpenStackConnection(object):
                                            project_name=auth["project_name"],
                                            region_name=auth["region_name"]
                                            )
-        client_auth = v3.Password(auth_url=auth["auth_url"],
-                                  username=auth["username"],
-                                  password=auth["password"],
-                                  user_domain_id=auth["user_domain_id"],
-                                  project_id=auth["project_id"],)
 
-        self.client_session = session.Session(auth=client_auth)
+        loader = loading.get_plugin_loader('password')
+
+        auth = loader.load_from_options(auth_url=auth["auth_url"],
+                                        username=auth["username"],
+                                        user_domain_name="default",
+                                        password=auth["password"],
+                                        project_id=auth["project_id"],
+                                        project_name=auth["project_name"])
+
+        client_session = session.Session(auth=auth)
+
+        self.nova_client = client.Client("2", session=client_session)

implementation/vm/instance.py

 from openstack.exceptions import SDKException
-from novaclient import client
 import logging
 from interface_openstack.implementation.utils.connection import OpenStackConnection
 import secrets
@@ -8,6 +7,7 @@ from interface_openstack.interface.vm.instance import InstanceInterface
 from interface_openstack.interface.vm.resources import Instance, Flavor
 from interface_openstack.interface.image.image import Image
 
+
 def openstackError(func):
     def wrap_OpenStackError(*args, **kw):
         """ Decorator to wrap openstack error in simple Exception.
@@ -17,10 +17,10 @@ def openstackError(func):
         try:
             return func(*args, **kw)
         except SDKException as e:
-                logging.error(e)
-                new_e = Exception(e)
-                new_e.OpenStackError = True
-                raise new_e
+            logging.error(e)
+            new_e = Exception(e)
+            new_e.OpenStackError = True
+            raise new_e
     return wrap_OpenStackError
 
 
@@ -171,13 +171,12 @@ class OSVirtualMachineManager(InstanceInterface, OpenStackConnection):
                                                    image_name,
                                                    metadata)
         image = self.openstack.compute.find_image(image_name)
-        return  self.os_image_to_rc_image(image)
+        return self.os_image_to_rc_image(image)
 
+    @openstackError
     def get_vnc_console(self, server_id):
-        with client.Client("2", session=self.client_session) as nova:
-            if server_id:
-                instance = nova.servers.get(server_id)
-                return instance.get_vnc_console("novnc")
+        instance = self.nova_client.servers.get(server_id)
+        return instance.get_vnc_console("novnc")
 
     @openstackError
     def attach_volume(self, server_id, volume_id, device=None):
@@ -209,5 +208,7 @@ class OSVirtualMachineManager(InstanceInterface, OpenStackConnection):
     def os_image_to_rc_image(self, os_image):
         return Image(
             os_image.id,
-            os_image.name
+            os_image.name,
+            "unknown",
+            os_image.size
         )