SEBA-497 delayering, Makefile, and tox for onos-synchronizer

Change-Id: I849b307330a6fd5a5de5489d8f2db804a02acead
diff --git a/xos/synchronizer/event_steps/kubernetes_event.py b/xos/synchronizer/event_steps/kubernetes_event.py
index 67c2569..d319eb0 100644
--- a/xos/synchronizer/event_steps/kubernetes_event.py
+++ b/xos/synchronizer/event_steps/kubernetes_event.py
@@ -15,8 +15,6 @@
 
 
 import json
-import os
-import sys
 from xossynchronizer.event_steps.eventstep import EventStep
 from xossynchronizer.modelaccessor import ONOSApp, ONOSService
 from xosconfig import Config
@@ -24,6 +22,7 @@
 
 log = create_logger(Config().get('logging'))
 
+
 class KubernetesPodDetailsEventStep(EventStep):
     topics = ["xos.kubernetes.pod-details"]
     technology = "kafka"
@@ -52,18 +51,23 @@
                 continue
 
             log.info("Dirtying ONOS Service", service=service)
-            service.backend_code=0
-            service.backend_status="resynchronize due to kubernetes event"
+            service.backend_code = 0
+            service.backend_status = "resynchronize due to kubernetes event"
             service.save(update_fields=["updated", "backend_code", "backend_status"], always_update_timestamp=True)
 
             for app in service.service_instances.all():
                 log.info("Dirtying ONOS App", app=app)
-                app.backend_code=0
-                app.backend_status="resynchronize due to kubernetes event"
+                app.backend_code = 0
+                app.backend_status = "resynchronize due to kubernetes event"
                 app.save(update_fields=["updated", "backend_code", "backend_status"], always_update_timestamp=True)
 
                 for attr in app.service_instance_attributes.all():
                     log.info("Dirtying ServiceInstanceAttributes for App", app=app, attr=attr)
                     attr.backend_code = 0
                     attr.backend_status = "resynchronize due to kubernetes event"
-                    attr.save(update_fields=["updated", "backend_code", "backend_status"], always_update_timestamp=True)
+                    attr.save(
+                        update_fields=[
+                            "updated",
+                            "backend_code",
+                            "backend_status"],
+                        always_update_timestamp=True)