Add note support

- note content is dummy for now

agent.py

@@ -121,6 +121,17 @@ class ServerManager:
     def get_existing_servers(self):
         return self.send_request('GET', '/api/servers')
 
+    def get_note(self, service_id):
+        return self.send_request('GET', '/api/notes/' + str(service_id))
+
+    def create_note(self, post_data):
+        logging.info("Creating note...")
+        return self.send_request('POST', '/api/notes', post_data)
+
+    def update_note(self, post_data, service_id):
+        logging.info(f"Updating note with id {service_id}...")
+        return self.send_request('PUT', '/api/notes/' + str(service_id), post_data)
+
     def create_server(self, post_data):
         logging.info("Creating server...")
         return self.send_request('POST', '/api/servers', post_data)
@@ -169,5 +180,18 @@ def main():
         logging.info('Server does not exist, Creating...')
         logging.info(server_manager.create_server(post_data))
 
+    note_data = {
+        'service_id': server_id,
+        'note': 'Bla bla bla'
+    }
+    try:
+        note = server_manager.get_note(server_id)
+    except urllib.error.HTTPError:
+        note = None
+    if note:
+        server_manager.update_note(note_data, server_id)
+    else:
+        server_manager.create_note(note_data)
+
 if __name__ == '__main__':
     main()