diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index 159b97e..da492a2 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -12,9 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# docker build -t xosproject/vepcservice-synchronizer:candidate -f Dockerfile.synchronizer .
+# docker build -t xosproject/k8sepcservice-synchronizer:candidate -f Dockerfile.synchronizer .
 
-# xosproject/vepcservice-synchronizer
+# xosproject/k8sepcservice-synchronizer
 
 FROM xosproject/xos-synchronizer-base:2.0.0
 
diff --git a/xos/examples/VEpcServiceInstance.yaml b/xos/examples/VEpcServiceInstance.yaml
index a43bc70..a49c223 100644
--- a/xos/examples/VEpcServiceInstance.yaml
+++ b/xos/examples/VEpcServiceInstance.yaml
@@ -1,3 +1,4 @@
+
 ---
 # Copyright 2017-present Open Networking Foundation
 #
@@ -31,11 +32,11 @@
 
 topology_template:
   node_templates:
-    service#vepcervice:
+    service#vepcservice:
       type: tosca.nodes.VEpcService
       properties:
         name: vepcservice
-        must-exist: true
+#        must-exist: true
 
     service#kubernetes:
       type: tosca.nodes.KubernetesService
@@ -634,7 +635,7 @@
             relationship: tosca.relationships.BelongsToOne
 
     vepcresourceinstancelink_mme_statefulset:
-      type: tosca.nodes.VEpcResourceInstanceLink
+        type: tosca.nodes.VEpcResourceInstanceLink
         properties:
           name: "MME StatefulSet Resource Link"
 
@@ -660,7 +661,7 @@
             relationship: tosca.relationships.BelongsToOne
 
     vepcresourceinstancelink_hss_statefulset:
-      type: tosca.nodes.VEpcResourceInstanceLink
+        type: tosca.nodes.VEpcResourceInstanceLink
         properties:
           name: "HSS StatefulSet Resource Link"
 
@@ -686,7 +687,7 @@
             relationship: tosca.relationships.BelongsToOne
 
     vepcresourceinstancelink_hssdb_statefulset:
-      type: tosca.nodes.VEpcResourceInstanceLink
+        type: tosca.nodes.VEpcResourceInstanceLink
         properties:
           name: "HSS Cassandra StatefulSet Resource Link"
 
@@ -712,7 +713,7 @@
             relationship: tosca.relationships.BelongsToOne
 
     vepcresourceinstancelink_spgwcu_statefulset:
-      type: tosca.nodes.VEpcResourceInstanceLink
+        type: tosca.nodes.VEpcResourceInstanceLink
         properties:
           name: "HS SPGW Control and User StatefulSet Resource Link"
 
@@ -722,4 +723,4 @@
               relationship: tosca.relationships.BelongsToOne
           - vepc_service_instance:
               node: vepcserviceinstance
-              relationship: tosca.relationships.BelongsToOne
+              relationship: tosca.relationships.BelongsToOne
\ No newline at end of file
diff --git a/xos/synchronizer/models/vepcservice.xproto b/xos/synchronizer/models/vepcservice.xproto
index 223ee0c..e8fd43c 100644
--- a/xos/synchronizer/models/vepcservice.xproto
+++ b/xos/synchronizer/models/vepcservice.xproto
@@ -11,6 +11,6 @@
 
 message VEpcResourceInstanceLink(XOSBase) {
     required string name = 1 [help_text = "Resource link name", db_index=True, tosca_key=True];
-    required manytoone resource_instance->KubernetesResourceInstance:vepc_resource_instance_links = 2 [help_text = "Kubernetes resource file content", db_index=True, null=False, blank=False];
-    required manytoone vepc_service_instance->VEpcServiceInstance:vepc_resource_instance_links = 3 [help_text = "Virtual EPC Service Instance", db_index=True, null=False, blank=False];
+    required manytoone resource_instance->ServiceInstance:vepc_resource_instance_links = 2 [help_text = "Kubernetes resource file content", db_index=True, null=False, blank=False];
+    required manytoone vepc_service_instance->VEpcServiceInstance:vepc_resource_instance_links2 = 3 [help_text = "Virtual EPC Service Instance", db_index=True, null=False, blank=False];
 }
\ No newline at end of file