Add host parameter and loglevel in non-debug mode

server.py

@@ -1,4 +1,5 @@
 from argparse import ArgumentParser
+import logging
 from pathlib import Path
 import urllib.error
 import urllib.request
@@ -8,10 +9,12 @@ from flask import Flask, send_file
 
 def main():
     parser = ArgumentParser()
+    parser.add_argument('--host', default='0.0.0.0', help='Server host (default: 0.0.0.0)')
     parser.add_argument('--port', type=int, default=8000, help='Server port (default: 8000)')
     parser.add_argument('--debug', action='store_true', help='Run in debug mode (auto-reload on change)')
     arguments = parser.parse_args()
 
+    host: str = arguments.host
     port: int = arguments.port
     debug_mode: bool = arguments.debug
     del arguments
@@ -19,6 +22,9 @@ def main():
     app = Flask('map_server', static_folder='public', static_url_path='/')
     osm_timeout = 3
     http_code_ok = 200
+    if not debug_mode:
+        log = logging.getLogger('werkzeug')
+        log.setLevel(logging.WARNING)
 
     @app.route('/')
     def _index():
@@ -46,7 +52,7 @@ def main():
         except urllib.error.URLError as error:
             return f'Cannot retrieve tile: {error}', 501
 
-    app.run(host='0.0.0.0', port=port, debug=debug_mode)
+    app.run(host=host, port=port, debug=debug_mode)
 
 
 if __name__ == '__main__':