diff --git a/xos/api/README.md b/xos/api/README.md
index c0244f0..eb2bd28 100644
--- a/xos/api/README.md
+++ b/xos/api/README.md
@@ -1,13 +1,24 @@
 ## XOS REST API
 
-The XOS API importer is automatic and will search this subdirectory and its hierarchy of children for valid API methods. API methods that are descendents of the django View class are discovered automatically. This should include django_rest_framework based Views and Viewsets. This processing is handled by import_methods.py.
+Source for the XOS REST API lives in directory `xos/api`. An importer
+tool, `import_methods.py`, auto-generates the REST API by searching
+this directory (and sub-directories) for valid API methods. These
+methods are descendents of the Django View class. This should include
+django_rest_framework based Views and Viewsets.
 
-A convention is established for locating API methods within the XOS hierarchy. The root of the api will automatically be /api/. Under that are the following paths:
+We establish a convention for locating API methods within the XOS
+hierarchy. The root of the api is automatically `/api/`. Under that
+are the following paths:
 
 * `/api/service` ... API endpoints that are service-wide
 * `/api/tenant` ... API endpoints that are relative to a tenant within a service
 
-For example, `/api/tenant/cord/subscriber/` contains the Subscriber API for the CORD service. 
+For example, `/api/tenant/cord/subscriber/` contains the Subscriber
+API for the CORD service.
 
-The API importer will automatically construct REST paths based on where files are placed within the directory hierarchy. For example, the files in `xos/api/tenant/cord/` will automatically appear at the API endpoint `http://server_name/api/tenant/cord/`. 
-The directory `examples` contains examples that demonstrate using the API from the Linux command line.
+The API importer automatically constructs REST paths based on
+where files are placed within the directory hierarchy. For example,
+the files in `xos/api/tenant/cord/` will automatically appear at the
+API endpoint `http://server_name/api/tenant/cord/`.  The directory
+`examples` contains examples that demonstrate using the API from the
+Linux command line.
diff --git a/xos/configurations/bash/copyin-vtn.sh b/xos/configurations/bash/copyin-vtn.sh
deleted file mode 100644
index ef18704..0000000
--- a/xos/configurations/bash/copyin-vtn.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#! /bin/bash
-
-export SETUPDIR=/root/setup
-
-# copy in file necessary to setup VTN
-
-cd ../cord
-CONTAINER=$( docker ps|grep "xos"|awk '{print $NF}' )
-make vtn_network_cfg_json
-docker cp $SETUPDIR/vtn-network-cfg.json $CONTAINER:/root/setup/
-docker cp ../common/id_rsa.pub $CONTAINER:/opt/xos/observers/onos/onos_key.pub
-docker cp ../common/id_rsa $CONTAINER:/opt/xos/observers/onos/onos_key
diff --git a/xos/synchronizers/onos/steps/sync_onosapp.py b/xos/synchronizers/onos/steps/sync_onosapp.py
index add749d..1233ad7 100644
--- a/xos/synchronizers/onos/steps/sync_onosapp.py
+++ b/xos/synchronizers/onos/steps/sync_onosapp.py
@@ -17,6 +17,7 @@
 from services.onos.models import ONOSService, ONOSApp
 from xos.logger import Logger, logging
 from services.vrouter.models import VRouterService
+from services.vtn.models import VTNService
 
 # hpclibrary will be in steps/..
 parentdir = os.path.join(os.path.dirname(__file__),"..")
@@ -145,16 +146,25 @@
     # This function currently assumes a single Deployment and Site
     def get_vtn_config(self, o, attrs):
 
-        # The "attrs" argument contains a list of all service and tenant attributes
-        # If an attribute is present, use it in the configuration
-        # Otherwise save the attriute with a reasonable (for a CORD devel pod) default value
-        # The admin will see all possible configuration values and the assigned defaults
-        privateGatewayMac = self.attribute_default(o, attrs, "privateGatewayMac", "00:00:00:00:00:01")
-        localManagementIp = self.attribute_default(o, attrs, "localManagementIp", "172.27.0.1/24")
-        ovsdbPort = self.attribute_default(o, attrs, "ovsdbPort", "6641")
-        sshPort = self.attribute_default(o, attrs, "sshPort", "22")
-        sshUser = self.attribute_default(o, attrs, "sshUser", "root")
-        sshKeyFile = self.attribute_default(o, attrs, "sshKeyFile", "/root/node_key")
+        privateGatewayMac = None
+        localManagementIp = None
+        ovsdbPort = None
+        sshPort = None
+        sshUser = None
+        sshKeyFile = None
+        mgmtSubnetBits = None
+
+        # VTN-specific configuration from the VTN Service
+        vtns = VTNService.get_service_objects().all()
+        if vtns:
+            vtn = vtns[0]
+            privateGatewayMac = vtn.privateGatewayMac
+            localManagementIp = vtn.localManagementIp
+            ovsdbPort = vtn.ovsdbPort
+            sshPort = vtn.sshPort
+            sshUser = vtn.sshUser
+            sshKeyFile = vtn.sshKeyFile
+            mgmtSubnetBits = vtn.mgmtSubnetBits
 
         # OpenStack endpoints and credentials
         keystone_server = "http://keystone:5000/v2.0/"
@@ -194,11 +204,6 @@
         }
 
         # Generate apps->org.onosproject.cordvtn->cordvtn->nodes
-
-        # We need to generate a CIDR address for the physical node's
-        # address on the management network
-        mgmtSubnetBits = self.attribute_default(o, attrs, "mgmtSubnetBits", "24")
-
         nodes = Node.objects.all()
         for node in nodes:
             nodeip = socket.gethostbyname(node.name)