Update Dockerfile

Dockerfile

@@ -28,7 +28,8 @@ ENV HOST=0.0.0.0 \
 # ===== Admin Backend =====
 COPY <<"EOF" /app/sudo/app.py
 from flask import Flask, request, jsonify
-from pymongo import MongoClient
+from pymongo.mongo_client import MongoClient
+from pymongo.server_api import ServerApi
 from werkzeug.security import generate_password_hash
 import os
 from datetime import datetime
@@ -38,8 +39,8 @@ app = Flask(__name__)
 app.secret_key = os.getenv("FLASK_SECRET")
 
 # MongoDB connection
-client = MongoClient(os.getenv("MONGO_URI"))
-db = client.get_default_database()
+url = (os.getenv("MONGO_URI"))
+client = MongoClient(uri, server_api=ServerApi('1'))
 
 # Authentication decorator
 def sudo_required(f):