diff --git a/networkdiag.py b/networkdiag.py
index 315850c..7529eae 100644
--- a/networkdiag.py
+++ b/networkdiag.py
@@ -1,14 +1,31 @@
+"""
+SPDX-FileCopyrightText: 2020-present Open Networking Foundation <info@opennetworking.org>
+SPDX-License-Identifier: LicenseRef-ONF-Member-1.01
+"""
+import sys
+
 from flask import Flask, request
 from flask_restful import Resource, Api
+import logging as log
 
 app = Flask(__name__)
 api = Api(app)
 
-class Greeting (Resource):
+
+class Greeting(Resource):
     def get(self):
         return 'Hello World!'
 
-api.add_resource(Greeting, '/') # Route_1
+
+api.add_resource(Greeting, '/')  # Route_1
 
 if __name__ == '__main__':
-    app.run('0.0.0.0','3333')
+    log.basicConfig(
+            format='%(asctime)s %(levelname)-8s %(message)s',
+            level=log.DEBUG,
+            datefmt='%Y-%m-%d %H:%M:%S',
+            stream=sys.stdout)
+
+    log.info("Starting network-diag-app...")
+
+    app.run('0.0.0.0', '3333')