fix: Update static folder path and enhance backend startup script

Author: imsh-mlops

app/backend/hrchatbot/app.py

@@ -100,7 +100,7 @@
 from hrchatbot.prepdocslib.filestrategy import UploadUserFileStrategy
 from hrchatbot.prepdocslib.listfilestrategy import File
 
-bp = Blueprint("routes", __name__, static_folder="static")
+bp = Blueprint("routes", __name__, static_folder="../static")
 # Fix Windows registry issue with mimetypes
 mimetypes.add_type("application/javascript", ".js")
 mimetypes.add_type("text/css", ".css")
@@ -126,7 +126,7 @@ async def favicon():
 @bp.route("/assets/<path:path>")
 async def assets(path):
     return await send_from_directory(
-        Path(__file__).resolve().parent / "static" / "assets", path
+        Path(__file__).resolve().parent.parent / "static" / "assets", path
     )
 
 

app/backend/hrchatbot/main.py

@@ -1,9 +1,24 @@
+import asyncio
 import os
+import socket
 
 from hrchatbot.app import create_app
 from hrchatbot.load_azd_env import load_azd_env
 
-# WEBSITE_HOSTNAME is always set by App Service, RUNNING_IN_PRODUCTION is set in main.bicep
+
+def force_bind_port(desired_port=8000):
+    """Force bind to port using SO_REUSEADDR"""
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        try:
+            s.bind(("localhost", desired_port))
+            return desired_port
+        except OSError:
+            # Still couldn't bind, find free port
+            s.bind(("localhost", 0))
+            return s.getsockname()[1]
+
+
 RUNNING_ON_AZURE = (
     os.getenv("WEBSITE_HOSTNAME") is not None
     or os.getenv("RUNNING_IN_PRODUCTION") is not None
@@ -13,3 +28,8 @@
     load_azd_env()
 
 app = create_app()
+
+if __name__ == "__main__":
+    port = force_bind_port(8000)
+    url = f"http://localhost:{port}"
+    asyncio.run(app.run_task(host="localhost", port=port))

app/start.sh

@@ -44,9 +44,7 @@ echo ""
 
 cd ../backend
 
-port=50505
-host=localhost
-uv run quart --app hrchatbot.main:app run --port "$port" --host "$host" --reload
+uv run python -m hrchatbot.main
 out=$?
 if [ $out -ne 0 ]; then
     echo "Failed to start backend"