diff --git a/xos/vnaas-onboard.yaml b/xos/vnaas-onboard.yaml
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+
+# 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.
+
+
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+description: Onboard the vNaaS service
+
+imports:
+   - custom_types/xos.yaml
+
+topology_template:
+  node_templates:
+     vnaas:
+      type: tosca.nodes.ServiceController
+      properties:
+          base_url: file:///opt/xos_services/vnaas/xos/
+          # The following will concatenate with base_url automatically, if
+          # base_url is non-null.
+          xproto: ./
+          synchronizer: synchronizer/manifest
+          synchronizer_run: vnaas-synchronizer.py
+          tosca_resource: tosca/resources/vnaasservice.py
+          tosca_custom_types: vnaas.yaml
+          
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