Dockerfile

@@ -46,4 +46,4 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
     CMD python -c "import requests; requests.get('http://localhost:8000/api/admin/health', timeout=5)" || exit 1
 
 # Run the application
-CMD exec uvicorn app:app --host 0.0.0.0 --port ${PORT:-8000} --workers 1 --timeout-graceful-shutdown 5
+CMD exec gunicorn app:app --bind 0.0.0.0:${PORT:-8000} --timeout 600 --worker-class uvicorn.workers.UvicornWorker --workers 1

app.py

@@ -730,7 +730,19 @@ logger.info(f"Feature router load results: {featureLoadResults}")
 
 
 if __name__ == "__main__":
-    import uvicorn
-
     port = int(os.environ.get("PORT", 8000))
-    uvicorn.run("app:app", host="0.0.0.0", port=port, workers=1, timeout_graceful_shutdown=5)
+
+    try:
+        from gunicorn.app.wsgiapp import WSGIApplication  # noqa: F401
+        import subprocess
+        import sys
+        subprocess.run([
+            sys.executable, "-m", "gunicorn", "app:app",
+            "--bind", f"0.0.0.0:{port}",
+            "--timeout", "600",
+            "--worker-class", "uvicorn.workers.UvicornWorker",
+            "--workers", "1",
+        ], check=True)
+    except ImportError:
+        import uvicorn
+        uvicorn.run("app:app", host="0.0.0.0", port=port, workers=1, timeout_graceful_shutdown=5)

requirements.txt

@@ -2,6 +2,7 @@
 fastapi==0.115.0  # Upgraded for Pydantic v2 compatibility
 websockets==12.0
 uvicorn==0.23.2
+gunicorn==23.0.0
 python-multipart==0.0.6
 httpx>=0.25.2
 pydantic>=2.0.0  # Upgraded to v2 for compatibility