Get rid of more duplicate logging

app.py

@@ -8,7 +8,6 @@ import os
 from dotenv import load_dotenv, find_dotenv
 from flask import Flask
 from flask_cors import CORS
-from flask.logging import default_handler
 from flask_migrate import Migrate
 from flask_sqlalchemy import SQLAlchemy
 from ldap3.utils.log import logger as ldap3_logger
@@ -17,14 +16,15 @@ from ldap3.utils.log import set_library_log_detail_level, BASIC
 load_dotenv(find_dotenv())
 
 app = Flask(__name__)
+
+# Configure logging
 loglevel = os.getenv("KI_LOGLEVEL", logging.WARNING)
 loglevel = int(loglevel)
 app.logger.setLevel(loglevel)
 app.logger.propagate = False # do not forward messages to the root logger
 logging.basicConfig(level=loglevel, format='[%(asctime)s] %(levelname)s [%(name)s] %(message)s') # configure root logger as fallback
-
-set_library_log_detail_level(BASIC)
-ldap3_logger.addHandler(default_handler)
+logging.getLogger('werkzeug').propagate = False # werkzeug has its own ColorStreamHandler
+set_library_log_detail_level(BASIC) # ldap3 has different verbosity levels internally
 
 app.config["SQLALCHEMY_DATABASE_URI"] = os.getenv("SQLALCHEMY_DATABASE_URI")
 app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False