diff --git a/xos/configurations/cord-pod/Makefile b/xos/configurations/cord-pod/Makefile
index 49a1c98..9296f10 100644
--- a/xos/configurations/cord-pod/Makefile
+++ b/xos/configurations/cord-pod/Makefile
@@ -6,7 +6,7 @@
 	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/nodes.yaml
 	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/images.yaml
 
-vtn: vtn_network_cfg_json
+vtn:
 	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/vtn-external.yaml
 
 cord: virtualbng_json
@@ -15,7 +15,7 @@
 	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/cord-vtn-vsg.yaml
 
 exampleservice:
-	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/pod-exampleservice.yaml 
+	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/pod-exampleservice.yaml
 
 cord-ceilometer: ceilometer_custom_images cord
 	sudo docker-compose run xos python /opt/xos/tosca/run.py padmin@vicci.org /root/setup/ceilometer.yaml
diff --git a/xos/configurations/cord-pod/README.md b/xos/configurations/cord-pod/README.md
index 2c74c15..e423ec6 100644
--- a/xos/configurations/cord-pod/README.md
+++ b/xos/configurations/cord-pod/README.md
@@ -77,18 +77,27 @@
 
 They will have been put there for you by the cluster installation scripts.
 
-If your setup uses the CORD fabric, you need to edit `make-vtn-networkconfig-json.sh`
-and `cord-vtn-vsg.yml` as appropriate.  Specifically, in
-`make-vtn-networkconfig-json.sh` you need to set these parameters for VTN:
- * gatewayIp
- * gatewayMac
- * PHYPORT
+**If your setup uses the CORD fabric**, you need to modify the autogenerated VTN
+configuration and edit `cord-vtn-vsg.yml` as follows.
 
-And in `cord-vtn-vsg.yml`:
- * public_addresses -> properties -> addresses
- * service_vsg -> properties -> wan_container_gateway_ip
- * service_vsg -> properties -> wan_container_gateway_mac
- * service_vsg -> properties -> wan_container_netbits
+ 1. The VTN app configuration is autogenerated by XOS.  For more information
+about the configuration, see [this page on the ONOS Wiki](https://wiki.onosproject.org/display/ONOS/CORD+VTN),
+under the **ONOS Settings** heading.  To see the generated
+configuration, go to http://xos/admin/onos/onosapp/, click on
+*VTN_ONOS_app*, then the *Attributes* tab, and look for the
+`rest_onos/v1/network/configuration/` attribute.  You can edit this
+configuration after deleting the `autogenerate` attribute (otherwise XOS will
+overwrite your changes), or you can change the other
+attributes and delete  `rest_onos/v1/network/configuration/` in order
+to get XOS to regenerate it.
+
+ 2. Modify `cord-vtn-vsg.yml` and set these parameters to the
+appropriate values for the fabric:
+  * `public_addresses:properties:addresses` (IP address block of fabric)
+  * `service_vsg:properties:wan_container_gateway_ip` (same as `publicGateway:gatewayIp` from VTN configuration)
+  * `service_vsg:properties:wan_container_gateway_mac` (same as `publicGateway:gatewayMac` from VTN configuration)
+  * `service_vsg:properties:wan_container_netbits` (bits in fabric IP address block netmask)
+
 
 If you're not using the fabric then the default values should be OK.  
 
@@ -104,20 +113,20 @@
 
 ### Inspecting the vSG
 
-The above series of `make` commands will spin up a vSG for a sample subscriber.  The 
-vSG is implemented as a Docker container (using the 
-[andybavier/docker-vcpe](https://hub.docker.com/r/andybavier/docker-vcpe/) image 
+The above series of `make` commands will spin up a vSG for a sample subscriber.  The
+vSG is implemented as a Docker container (using the
+[andybavier/docker-vcpe](https://hub.docker.com/r/andybavier/docker-vcpe/) image
 hosted on Docker Hub) running inside an Ubuntu VM.  Once the VM is created, you
 can login as the `ubuntu` user at the management network IP (172.27.0.x) on the compute node
 hosting the VM, using the private key generated on the head node by the install process.
-For example, in the single-node development POD configuration, you can login to the VM 
+For example, in the single-node development POD configuration, you can login to the VM
 with management IP 172.27.0.2 using a ProxyCommand as follows:
 
 ```
 ubuntu@pod:~$ ssh -o ProxyCommand="ssh -W %h:%p ubuntu@nova-compute" ubuntu@172.27.0.2
 ```
 
-Alternatively, you could copy the generated private key to the compute node 
+Alternatively, you could copy the generated private key to the compute node
 and login from there:
 
 ```
@@ -126,7 +135,7 @@
 ubuntu@nova-compute:~$ ssh ubuntu@172.27.0.2
 ```
 
-Once logged in to the VM, you can run `sudo docker ps` to see the running 
+Once logged in to the VM, you can run `sudo docker ps` to see the running
 vSG containers:
 
 ```
@@ -134,4 +143,3 @@
 CONTAINER ID        IMAGE                    COMMAND             CREATED             STATUS              PORTS               NAMES
 2b0bfb3662c7        andybavier/docker-vcpe   "/sbin/my_init"     5 days ago          Up 5 days                               vcpe-222-111
 ```
-
diff --git a/xos/configurations/cord-pod/make-vtn-networkconfig-json.sh b/xos/configurations/cord-pod/make-vtn-networkconfig-json.sh
deleted file mode 100755
index a1e5137..0000000
--- a/xos/configurations/cord-pod/make-vtn-networkconfig-json.sh
+++ /dev/null
@@ -1,83 +0,0 @@
-FN=$SETUPDIR/vtn-network-cfg.json
-
-echo "Writing to $FN"
-
-rm -f $FN
-
-cat >> $FN <<EOF
-{
-    "apps" : {
-        "org.onosproject.cordvtn" : {
-            "cordvtn" : {
-                "privateGatewayMac" : "00:00:00:00:00:01",
-                "localManagementIp": "172.27.0.1/24",
-                "ovsdbPort": "6641",
-                "sshPort": "22",
-                "sshUser": "root",
-                "sshKeyFile": "/root/node_key",
-                "publicGateways": [
-                    {
-                        "gatewayIp": "10.168.0.1",
-                        "gatewayMac": "02:42:0a:a8:00:01"
-                    }
-                ],
-                "nodes" : [
-EOF
-
-NODES=$( sudo bash -c "source $SETUPDIR/admin-openrc.sh ; nova hypervisor-list" |grep -v ID|grep -v +|awk '{print $4}' )
-
-# XXX disabled - we don't need or want the nm node at this time
-# also configure ONOS to manage the nm node
-#NM="neutron-gateway"
-#NODES="$NODES $NM"
-
-NODECOUNT=0
-for NODE in $NODES; do
-    ((NODECOUNT++))
-done
-
-I=0
-for NODE in $NODES; do
-    echo $NODE
-    NODEIP=`getent hosts $NODE | awk '{ print $1 }'`
-
-    PHYPORT=veth1
-    # How to set LOCALIP?
-    LOCALIPNET="192.168.199"
-
-    ((I++))
-    cat >> $FN <<EOF
-                    {
-                      "hostname": "$NODE",
-                      "hostManagementIp": "$NODEIP/24",
-                      "bridgeId": "of:000000000000000$I",
-                      "dataPlaneIntf": "$PHYPORT",
-                      "dataPlaneIp": "$LOCALIPNET.$I/24"
-EOF
-    if [[ "$I" -lt "$NODECOUNT" ]]; then
-        echo "                    }," >> $FN
-    else
-        echo "                    }" >> $FN
-    fi
-done
-
-# get the openstack admin password and username
-source $SETUPDIR/admin-openrc.sh
-NEUTRON_URL=`keystone endpoint-get --service network|grep publicURL|awk '{print $4}'`
-
-cat >> $FN <<EOF
-                ]
-            }
-        },
-        "org.onosproject.openstackinterface" : {
-            "openstackinterface" : {
-                 "do_not_push_flows" : "true",
-                 "neutron_server" : "$NEUTRON_URL/v2.0/",
-                 "keystone_server" : "$OS_AUTH_URL/",
-                 "user_name" : "$OS_USERNAME",
-                 "password" : "$OS_PASSWORD"
-             }
-        }
-    }
-}
-EOF
diff --git a/xos/configurations/cord-pod/vtn-external.yaml b/xos/configurations/cord-pod/vtn-external.yaml
index 0aaee67..74e7ef7 100644
--- a/xos/configurations/cord-pod/vtn-external.yaml
+++ b/xos/configurations/cord-pod/vtn-external.yaml
@@ -25,6 +25,4 @@
               relationship: tosca.relationships.TenantOfService
       properties:
           dependencies: org.onosproject.drivers, org.onosproject.drivers.ovsdb, org.onosproject.openflow-base, org.onosproject.ovsdb-base, org.onosproject.dhcp, org.onosproject.cordvtn, org.onosproject.olt, org.onosproject.igmp, org.onosproject.cordmcast
-          rest_onos/v1/network/configuration/: { get_artifact: [ SELF, vtn_network_cfg_json, LOCAL_FILE ] }
-      artifacts:
-          vtn_network_cfg_json: /root/setup/vtn-network-cfg.json
+          autogenerate: vtn-network-cfg
diff --git a/xos/synchronizers/onos/steps/sync_onosapp.py b/xos/synchronizers/onos/steps/sync_onosapp.py
index 2dfdfbd..1fc6579 100644
--- a/xos/synchronizers/onos/steps/sync_onosapp.py
+++ b/xos/synchronizers/onos/steps/sync_onosapp.py
@@ -1,7 +1,6 @@
 import hashlib
 import os
 import socket
-import socket
 import sys
 import base64
 import time
@@ -14,7 +13,7 @@
 from synchronizers.base.syncstep import SyncStep
 from synchronizers.base.ansible import run_template_ssh
 from synchronizers.base.SyncInstanceUsingAnsible import SyncInstanceUsingAnsible
-from core.models import Service, Slice, ControllerSlice, ControllerUser
+from core.models import Service, Slice, Controller, ControllerSlice, ControllerUser, Node, TenantAttribute, Tag
 from services.onos.models import ONOSService, ONOSApp
 from xos.logger import Logger, logging
 
@@ -117,6 +116,127 @@
                 raise Exception("Controller user object for %s does not exist" % instance.creator)
             return cuser.kuser_id
 
+
+    def node_tag_default(self, o, node, tagname, default):
+        tags = Tag.select_by_content_object(node).filter(name=tagname)
+        if tags:
+            value = tags[0].value
+        else:
+            value = default
+            logger.info("node %s: saving default value %s for tag %s" % (node.name, value, tagname))
+            service = self.get_onos_service(o)
+            tag = Tag(service=service, content_object=node, name=tagname, value=value)
+            tag.save()
+        return value
+
+    # Scan attrs for attribute name
+    # If it's not present, save it as a TenantAttribute
+    def attribute_default(self, tenant, attrs, name, default):
+        if name in attrs:
+            value = attrs[name]
+        else:
+            value = default
+            logger.info("saving default value %s for attribute %s" % (value, name))
+            ta = TenantAttribute(tenant=tenant, name=name, value=value)
+            ta.save()
+        return value
+
+    # 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")
+
+        # OpenStack endpoints and credentials
+        keystone_server = "http://keystone:5000/v2.0/"
+        user_name = "admin"
+        password = "ADMIN_PASS"
+        controllers = Controller.objects.all()
+        if controllers:
+            controller = controllers[0]
+            keystone_server = controller.auth_url
+            user_name = controller.admin_user
+            password = controller.admin_password
+
+        # Put this in the controller object?  Or fetch it from Keystone?
+        # Seems like VTN should be pulling it from Keystone
+        # For now let it be specified by a service / tenant attribute
+        neutron_server = self.attribute_default(o, attrs, "neutron_server", "http://neutron-api:9696/v2.0/")
+
+        data = {
+            "apps" : {
+                "org.onosproject.cordvtn" : {
+                    "cordvtn" : {
+                        "privateGatewayMac" : privateGatewayMac,
+                        "localManagementIp": localManagementIp,
+                        "ovsdbPort": ovsdbPort,
+                        "sshPort": sshPort,
+                        "sshUser": sshUser,
+                        "sshKeyFile": sshKeyFile,
+                        "publicGateways": [],
+                        "nodes" : []
+                    }
+                },
+                "org.onosproject.openstackinterface" : {
+                    "openstackinterface" : {
+                        "do_not_push_flows" : "true",
+                        "neutron_server" : neutron_server,
+                        "keystone_server" : keystone_server,
+                        "user_name" : user_name,
+                        "password" : password
+                    }
+                }
+            }
+        }
+
+        # 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)
+
+            try:
+                bridgeId = self.node_tag_default(o, node, "bridgeId", "of:0000000000000001")
+                dataPlaneIntf = self.node_tag_default(o, node, "dataPlaneIntf", "veth1")
+                # This should be generated from the AddressPool if not present
+                dataPlaneIp = self.node_tag_default(o, node, "dataPlaneIp", "192.168.199.1/24")
+            except:
+                logger.error("not adding node %s to the VTN configuration" % node.name)
+                continue
+
+            node_dict = {
+                "hostname": node.name,
+                "hostManagementIp": "%s/%s" % (nodeip, mgmtSubnetBits),
+                "bridgeId": bridgeId,
+                "dataPlaneIntf": dataPlaneIntf,
+                "dataPlaneIp": dataPlaneIp
+            }
+            data["apps"]["org.onosproject.cordvtn"]["cordvtn"]["nodes"].append(node_dict)
+
+        # Generate apps->org.onosproject.cordvtn->cordvtn->publicGateways
+        # This should come from the vRouter service, but stick it in an attribute for now
+        gatewayIp = self.attribute_default(o, attrs, "gatewayIp", "10.168.0.1")
+        gatewayMac = self.attribute_default(o, attrs, "gatewayMac", "02:42:0a:a8:00:01")
+        gateway_dict = {
+            "gatewayIp": gatewayIp,
+            "gatewayMac": gatewayMac
+        }
+        data["apps"]["org.onosproject.cordvtn"]["cordvtn"]["publicGateways"].append(gateway_dict)
+
+        return json.dumps(data, indent=4, sort_keys=True)
+
     def write_configs(self, o):
         o.config_fns = []
         o.rest_configs = []
@@ -153,6 +273,33 @@
             file(os.path.join(o.files_dir, fn),"w").write(" " +value)
             o.early_rest_configs.append( {"endpoint": endpoint, "fn": fn} )
 
+        # Generate config files and save them to the appropriate tenant attributes
+        autogen = []
+        for key, value in attrs.iteritems():
+            if key == "autogenerate" and value:
+                autogen.append(value)
+        for label in autogen:
+            config = None
+            value = None
+            if label == "vtn-network-cfg":
+            # Generate the VTN config file... where should this live?
+                config = "rest_onos/v1/network/configuration/"
+                value = self.get_vtn_config(o, attrs)
+            if config:
+                tas = TenantAttribute.objects.filter(tenant=o, name=config)
+                if tas:
+                    ta = tas[0]
+                    if ta.value != value:
+                        logger.info("updating %s with autogenerated config" % config)
+                        ta.value = value
+                        ta.save()
+                        attrs[config] = value
+                else:
+                    logger.info("saving autogenerated config %s" % config)
+                    ta = TenantAttribute(tenant=o, name=config, value=value)
+                    ta.save()
+                    attrs[config] = value
+
         for name in attrs.keys():
             value = attrs[name]
             if name.startswith("config_"):
diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index d903190..9940f7b 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -204,6 +204,9 @@
             rest_onos/v1/network/configuration/:
                 type: string
                 required: false
+            autogenerate:
+                type: string
+                required: false
 
     tosca.nodes.VSGService:
         description: >
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index adc1bf1..cd36528 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -262,6 +262,9 @@
             rest_onos/v1/network/configuration/:
                 type: string
                 required: false
+            autogenerate:
+                type: string
+                required: false
 
     tosca.nodes.VSGService:
         description: >
diff --git a/xos/tosca/resources/onosapp.py b/xos/tosca/resources/onosapp.py
index 321600d..72511b3 100644
--- a/xos/tosca/resources/onosapp.py
+++ b/xos/tosca/resources/onosapp.py
@@ -61,7 +61,8 @@
                 self.set_tenant_attr(obj, k, v)
             elif k.startswith("component_config"):
                 self.set_tenant_attr(obj, k, v)
+            elif k == "autogenerate":
+                self.set_tenant_attr(obj, k, v)
 
     def can_delete(self, obj):
         return super(XOSONOSApp, self).can_delete(obj)
-