Add application file

webui.py

@@ -175,6 +175,41 @@ else:
     default_batch_size = 1
 gpus = "-".join(str(i) for i in gpu_indices)
 
+# Simple HTTP health-check endpoint when Gradio is running as a server.
+try:
+    # Import only when available to avoid hard dependency at module import time.
+    from http.server import BaseHTTPRequestHandler, HTTPServer
+
+    class _HealthHandler(BaseHTTPRequestHandler):
+        def do_GET(self):
+            if self.path == "/healthz":
+                self.send_response(200)
+                self.send_header("Content-Type", "text/plain; charset=utf-8")
+                self.end_headers()
+                self.wfile.write(b"ok")
+            else:
+                self.send_response(404)
+                self.end_headers()
+
+    # Expose a function to start the health server on demand.
+    def start_health_server(port):
+        try:
+            server = HTTPServer(("0.0.0.0", port), _HealthHandler)
+        except Exception:
+            return None
+
+        def _serve():
+            try:
+                server.serve_forever()
+            except Exception:
+                pass
+
+        t = threading.Thread(target=_serve, daemon=True)
+        t.start()
+        return server
+except Exception:
+    start_health_server = None
+
 
 class ToolButton(gr.Button, gr.components.FormComponent):
     """Small button with single emoji as text, fits inside gradio forms"""