Simplify to pure Flask deployment without external WSGI servers

Author: seligj95

infra/main.bicep

@@ -62,8 +62,11 @@ resource appService 'Microsoft.Web/sites@2024-04-01' = {
     httpsOnly: true
     siteConfig: {
       linuxFxVersion: 'PYTHON|3.12'
-      appCommandLine: 'python -m uvicorn main:app --host 0.0.0.0 --port 8000'
       appSettings: [
+        {
+          name: 'WEBSITES_PORT'
+          value: '8000'
+        }
         {
           name: 'SECRET_KEY'
           value: secretKey

main.py

@@ -12,25 +12,13 @@
 from src.models import db  # noqa: E402
 
 # Create Flask app
-flask_app = create_app()
+app = create_app()
 
 # Initialize database tables
-with flask_app.app_context():
+with app.app_context():
     db.create_all()
 
-# Create ASGI app for Uvicorn
-from werkzeug.middleware.proxy_fix import ProxyFix  # noqa: E402
-flask_app.wsgi_app = ProxyFix(
-    flask_app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_prefix=1
-)
-
-# For Uvicorn
-try:
-    from asgiref.wsgi import WsgiToAsgi  # noqa: E402
-    app = WsgiToAsgi(flask_app)
-except ImportError:
-    # Fallback: use Flask directly
-    app = flask_app
-
 if __name__ == '__main__':
-    flask_app.run(debug=False, host='0.0.0.0', port=8000)
+    # Get port from environment variable (Azure sets this as WEBSITES_PORT)
+    port = int(os.environ.get('WEBSITES_PORT', os.environ.get('PORT', 8000)))
+    app.run(debug=False, host='0.0.0.0', port=port)

requirements.txt

@@ -2,10 +2,5 @@ Flask==3.0.0
 Flask-CORS==4.0.0
 Flask-SQLAlchemy==3.1.1
 SQLAlchemy==2.0.23
-uvicorn==0.24.0
-asgiref==3.7.2
 python-dotenv==1.0.0
-azure-identity==1.15.0
-azure-keyvault-secrets==4.8.0
-azure-monitor-opentelemetry==1.2.0
 requests==2.31.0