diff --git a/xos/observers/helloworldservice/helloworldservice_config b/xos/observers/helloworldservice/helloworldservice_config
index 39dacbe..c14dff4 100644
--- a/xos/observers/helloworldservice/helloworldservice_config
+++ b/xos/observers/helloworldservice/helloworldservice_config
@@ -35,13 +35,10 @@
 pretend=False
 backoff_disabled=False
 images_directory=/opt/xos/images
-dependency_graph=/opt/xos/model-deps
+dependency_graph=/opt/xos/observers/helloworldservice/model-deps
 logfile=/var/log/xos_backend.log
 steps_dir=/opt/xos/observers/helloworldservice/steps
 save_ansible_output=True
 
 [gui]
 disable_minidashboard=True
-#branding_name=CORD
-#branding_css=/static/cord.css
-#branding_icon=/static/onos-logo.png
diff --git a/xos/observers/helloworldservice/model-deps b/xos/observers/helloworldservice/model-deps
index 63188f0..0967ef4 100644
--- a/xos/observers/helloworldservice/model-deps
+++ b/xos/observers/helloworldservice/model-deps
@@ -1,19 +1 @@
-{
-    "OriginServer": [
-        "ContentProvider"
-    ], 
-    "ContentProvider": [
-        "ServiceProvider"
-    ], 
-    "CDNPrefix": [
-        "ContentProvider"
-    ], 
-    "AccessMap": [
-        "ContentProvider"
-    ], 
-    "SiteMap": [
-        "ContentProvider", 
-        "ServiceProvider", 
-        "CDNPrefix"
-    ]
-}
+{}
diff --git a/xos/observers/helloworldservice/steps/sync_helloworldtenant.py b/xos/observers/helloworldservice/steps/sync_helloworldtenant.py
index 9adddd2..80efd75 100644
--- a/xos/observers/helloworldservice/steps/sync_helloworldtenant.py
+++ b/xos/observers/helloworldservice/steps/sync_helloworldtenant.py
@@ -1,39 +1,36 @@
 import os
 import sys
-import base64
-from django.db.models import F, Q
-from xos.config import Config
-from observer.syncstep import SyncStep
-from helloworldservice.models import HelloWorldService,HelloWorldTenant
+from django.db.models import Q
+from helloworldservice.models import HelloWorldService, HelloWorldTenant
 from observers.base.SyncInstanceUsingAnsible import SyncInstanceUsingAnsible
-from util.logger import Logger, logging
 
 parentdir = os.path.join(os.path.dirname(__file__),"..")
 sys.path.insert(0,parentdir)
 
-logger = Logger(level=logging.INFO)
-
 class SyncHelloWorldServiceTenant(SyncInstanceUsingAnsible):
     provides=[HelloWorldTenant]
     observes=HelloWorldTenant
     requested_interval=0
     template_name = "sync_helloworldtenant.yaml"
-    service_key_name = "/opt/xos/observers/helloworldservice/helloworldservice_private_key"
+    service_key_name =
+            "/opt/xos/observers/helloworldservice/helloworldservice_private_key"
 
     def __init__(self, *args, **kwargs):
         super(SyncHelloWorldServiceTenant, self).__init__(*args, **kwargs)
 
     def fetch_pending(self, deleted):
         if (not deleted):
-            objs = HelloWorldTenant.get_tenant_objects().filter(Q(enacted__lt=F('updated')) | Q(enacted=None),Q(lazy_blocked=False))
+            objs = HelloWorldTenant.get_tenant_objects().filter(
+                    Q(enacted__lt=F('updated')) | Q(enacted=None),
+                    Q(lazy_blocked=False))
         else:
             objs = HelloWorldTenant.get_deleted_tenant_objects()
 
         return objs
-    
+
     def get_extra_attributes(self, o):
-	self.get_instance(o)
-	return {"display_message": o.display_message}
+    	self.get_instance(o)
+    	return {"display_message": o.display_message}
 
     def delete_record(self, m):
         pass
diff --git a/xos/observers/helloworldservice/steps/sync_helloworldtenant.yaml b/xos/observers/helloworldservice/steps/sync_helloworldtenant.yaml
index 1338713..ae472f8 100644
--- a/xos/observers/helloworldservice/steps/sync_helloworldtenant.yaml
+++ b/xos/observers/helloworldservice/steps/sync_helloworldtenant.yaml
@@ -13,7 +13,8 @@
   - name: write message
     shell: cat "{{ display_message }}" > "/var/www/html/{{ instance_name }}.html"
 
+  - name: stop apache
+    service: name=apache2 state=stopped
+
   - name: start apache
-    shell: service apache2 restart
-     
- 
+    service: name=apache2 state=started