[CORD-3057] Basic OSS Service implementation

Change-Id: Ieacda8b3e4518fb133e97baaab554356d4e6bc3c
diff --git a/samples/oss-service.yaml b/samples/oss-service.yaml
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+++ b/samples/oss-service.yaml
@@ -0,0 +1,47 @@
+# 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.
+
+# curl -H "xos-username: admin@opencord.org" -H "xos-password: letmein" -X POST --data-binary @oss-service.yaml http://192.168.99.100:30007/run
+
+tosca_definitions_version: tosca_simple_yaml_1_0
+imports:
+  - custom_types/hippieossservice.yaml
+  - custom_types/servicedependency.yaml
+  - custom_types/voltservice.yaml
+description: Create an instance of the OSS Service and connect it to the vOLT Service
+topology_template:
+  node_templates:
+    service#volt:
+      type: tosca.nodes.VOLTService
+      properties:
+        name: volt
+        must-exist: true
+
+    service#oss:
+      type: tosca.nodes.HippieOSSService
+      properties:
+        name: hippie-oss
+        kind: oss
+
+    service_dependency#oss_volt:
+      type: tosca.nodes.ServiceDependency
+      properties:
+        connect_method: None
+      requirements:
+        - subscriber_service:
+            node: service#oss
+            relationship: tosca.relationships.BelongsToOne
+        - provider_service:
+            node: service#volt
+            relationship: tosca.relationships.BelongsToOne