use .env vars in waecm_g4_be;

mounted ./db to /code/app_be/db to persist db;

docker-compose.yml

@@ -11,6 +11,10 @@ services:
         context: ./backend
         dockerfile: ./Dockerfile
     command: python manage.py runserver 0.0.0.0:8000
+    env_file:
+      - .env
+    volumes:
+    - ./db:/code/app_be/db
     ports:
       - 8000:8000