added loading of defaults

code/main.py

@@ -1,14 +1,26 @@
 import uvicorn
 from setup_logging import setup_logging
+from dotenv import load_dotenv
 from app import app
 import logging
 import os
+from configparser import ConfigParser
+from pathlib import Path
+
+
+# load default values
+config = ConfigParser()
+config.read(Path(__file__).parent / 'defaults.ini')
+LISTEN_IP = config.get('fastapi', 'listen_ip')
+LISTEN_PORT = int(config.get('fastapi', 'listen_port'))
+
 
 if __name__ == '__main__':
     # setup
+    load_dotenv()
     setup_logging()
-    listen_ip = os.getenv('LISTEN_IP', default='0.0.0.0')
-    listen_port = int(os.getenv('LISTEN_PORT', default=8000))
+    listen_ip = os.getenv('LISTEN_IP', default=LISTEN_IP)
+    listen_port = int(os.getenv('LISTEN_PORT', default=LISTEN_PORT))
     logging.info(f'starting FastAPI server ({listen_ip}:{listen_port})')
     uvicorn.run(
         app=app,