SEBA-170 ONOS synchronizer resync when kubernetes event received

Change-Id: I16327557b7183844ae7086535c32c8f3ba4cacf3
diff --git a/xos/synchronizer/event_steps/kubernetes_event.py b/xos/synchronizer/event_steps/kubernetes_event.py
new file mode 100644
index 0000000..c692c43
--- /dev/null
+++ b/xos/synchronizer/event_steps/kubernetes_event.py
@@ -0,0 +1,57 @@
+
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import json
+import os
+import sys
+from synchronizers.new_base.eventstep import EventStep
+from synchronizers.new_base.modelaccessor import ONOSApp, ONOSService
+from xosconfig import Config
+from multistructlog import create_logger
+
+log = create_logger(Config().get('logging'))
+
+class KubernetesPodDetailsEventStep(EventStep):
+    topics = ["xos.kubernetes.pod-details"]
+    technology = "kafka"
+
+    def __init__(self, *args, **kwargs):
+        super(KubernetesPodDetailsEventStep, self).__init__(*args, **kwargs)
+
+    def process_event(self, event):
+        value = json.loads(event.value)
+
+        if (value.get("status") != "created"):
+            return
+
+        if "labels" not in value:
+            return
+
+        xos_service = value["labels"].get("xos_service")
+        if not xos_service:
+            return
+
+        for service in ONOSService.objects.filter(name = xos_service):
+            log.info("Dirtying ONOS Service", service=service)
+            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.save(update_fields=["updated", "backend_code", "backend_status"], always_update_timestamp=True)