explicit port and server name for testing

app.py

@@ -29,11 +29,12 @@ app = gr.Interface(
     ),
     outputs=gr.Text(label="Greeting"),
     title="Simple Greeting App",
-    description="A simple test application built with Python and Gradio. Enter your name to receive a greeting.",
-    allow_flagging="never" # Disables the "Flag" button for this simple example
+    description="A simple test application built with Python and Gradio. Enter your name to receive a greeting."
 )
 
 # Launch the application
-# The launch() method starts a local web server and provides a public URL if share=True.
+# To run in a Docker container (like on Hugging Face Spaces), you must
+# set server_name="0.0.0.0" to listen on all network interfaces.
+# The server_port should match the port exposed in your Dockerfile and readme.md (7860).
 if __name__ == "__main__":
-    app.launch()
+    app.launch(server_name="0.0.0.0", server_port=7860)