use log path that exists

server.py

@@ -13,7 +13,7 @@ app = Flask(__name__)
 logfmt = logging.Formatter('time=%(asctime)s level=%(levelname)s app=%(name)s msg="%(message)s"')
 
 logrotate = RotatingFileHandler(
-    '/var/log/login/server',
+    '/var/log/login.log',
     backupCount=10,
 )