Allow specifying the dashboard bind address (#2787)

esphome/__main__.py

@@ -637,6 +637,12 @@ def parse_args(argv):
         type=int,
         default=6052,
     )
+    parser_dashboard.add_argument(
+        "--address",
+        help="The address to bind to.",
+        type=str,
+        default="0.0.0.0",
+    )
     parser_dashboard.add_argument(
         "--username",
         help="The optional username to require for authentication.",

esphome/dashboard/dashboard.py

@@ -970,16 +970,17 @@ def start_web_server(args):
         server.add_socket(socket)
     else:
         _LOGGER.info(
-            "Starting dashboard web server on http://0.0.0.0:%s and configuration dir %s...",
+            "Starting dashboard web server on http://%s:%s and configuration dir %s...",
+            args.address,
             args.port,
             settings.config_dir,
         )
-        app.listen(args.port)
+        app.listen(args.port, args.address)
 
         if args.open_ui:
             import webbrowser
 
-            webbrowser.open(f"localhost:{args.port}")
+            webbrowser.open(f"http://{args.address}:{args.port}")
 
     if settings.status_use_ping:
         status_thread = PingStatusThread()