Initiate grpc northbound services during ONOS startup

Change-Id: I97839a6f23281c2128dcdbfe98eb5981a07bf482
diff --git a/incubator/protobuf/services/nb/BUCK b/incubator/protobuf/services/nb/BUCK
index 1ce40c2..1d3c697 100644
--- a/incubator/protobuf/services/nb/BUCK
+++ b/incubator/protobuf/services/nb/BUCK
@@ -56,4 +56,14 @@
 osgi_jar_with_tests(
     deps = COMPILE_DEPS,
     visibility = ['PUBLIC'],
+)
+
+onos_app (
+    title = 'Grpc Northbound Service',
+    app_name = "org.onosproject.grpc.nb.service",
+    category = 'TODO',
+    url = 'http://onosproject.org',
+    included_bundles = ['//incubator/grpc-dependencies:grpc-core-repkg-1.3.0',
+            '//lib:google-instrumentation-0.3.0'],
+    description = 'gRPC northbound services used to provide fine-grained access to ONOS native northbound interface from off-platform applications',
 )
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