Update server log messages to include specific addresses

tests/test_server.py

@@ -91,3 +91,9 @@ async def test_request_than_limit_max_requests_warn_log(
             responses = await asyncio.gather(*tasks)
             assert len(responses) == 2
     assert "Maximum request limit of 1 exceeded. Terminating process." in caplog.text
+
+
+async def test_log_messages_for_all_addresses(unused_tcp_port: int, caplog: pytest.LogCaptureFixture):
+    config = Config(app=app, host="0.0.0.0", port=unused_tcp_port)
+    async with run_server(config):
+        assert f"Running on http://127.0.0.1:{unused_tcp_port}" in caplog.text

uvicorn/server.py

@@ -36,6 +36,24 @@
 logger = logging.getLogger("uvicorn.error")
 
 
+def get_interface_ip(family: socket.AddressFamily) -> str:
+    """Get the IP address of an external interface. Used when binding to
+    0.0.0.0 or ::1 to show a more useful URL.
+
+    :meta private:
+    """
+    # arbitrary private address
+    host = "fd31:f903:5ab5:1::1" if family == socket.AF_INET6 else "10.253.155.219"
+
+    with socket.socket(family, socket.SOCK_DGRAM) as s:
+        try:
+            s.connect((host, 58162))
+        except OSError:
+            return "::1" if family == socket.AF_INET6 else "127.0.0.1"
+
+        return s.getsockname()[0]
+
+
 class ServerState:
     """
     Shared servers state that is available between all protocol instances.
@@ -219,6 +237,12 @@ def _log_started_message(self, listeners: Sequence[socket.SocketType]) -> None:
                 extra={"color_message": color_message},
             )
 
+            if host == "0.0.0.0":
+                localhost = "127.0.0.1"
+                display_hostname = get_interface_ip(socket.AF_INET)
+                logger.info(f"Running on {protocol_name}://{localhost}:{port}")
+                logger.info(f"Running on {protocol_name}://{display_hostname}:{port}")
+
     async def main_loop(self) -> None:
         counter = 0
         should_exit = await self.on_tick(counter)