add logrotate handler to server

server.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 import lilikusers
+
+import logging
 import json
 from flask import Flask, jsonify
 from flask import request, Response, redirect, url_for
@@ -7,6 +9,13 @@ from functools import wraps
 
 app = Flask(__name__)
 
+logrotate = logging.handlers.RotatingFileHandlers(
+    '/var/log/login/server',
+    backupCount=10,
+)
+
+app.logger.add_handler(logrotate)
+
 lilik_ldap = lilikusers.LILiK_LDAP()
 
 def check_auth(user_name, password):