Add port parameter to SSHTunnel (#372)

* Add port parameter to SSHTunnel

Signed-off-by: Igor Gitman <igitman@nvidia.com>

* Fix ci

Signed-off-by: Igor Gitman <igitman@nvidia.com>

* Fix copyright

Signed-off-by: Igor Gitman <igitman@nvidia.com>

* Fix copyright

Signed-off-by: Igor Gitman <igitman@nvidia.com>

* Fix copyright

Signed-off-by: Igor Gitman <igitman@nvidia.com>

---------

Signed-off-by: Igor Gitman <igitman@nvidia.com>

Author: Kipok

nemo_run/core/tunnel/client.py

@@ -1,11 +1,10 @@
-# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) 2024-2025, NVIDIA CORPORATION.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-# http://www.apache.org/licenses/LICENSE-2.0
+#     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -196,6 +195,7 @@ class SSHTunnel(Tunnel):
 
     host: str
     user: str
+    port: Optional[int] = None
     identity: Optional[str] = None
     shell: Optional[str] = None
     pre_command: Optional[str] = None
@@ -263,6 +263,7 @@ def _authenticate(self):
         config = Config(overrides={"run": {"in_stream": False}})
         self.session = Connection(
             self.host,
+            port=self.port,
             user=self.user,
             connect_kwargs=connect_kwargs,
             forward_agent=False,

test/core/tunnel/test_client.py

@@ -1,11 +1,10 @@
-# SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) 2024-2025, NVIDIA CORPORATION.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-# http://www.apache.org/licenses/LICENSE-2.0
+#     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -162,6 +161,7 @@ def test_connect_with_identity(self, mock_config, mock_connection):
 
         mock_connection.assert_called_once_with(
             "test.host",
+            port=None,
             user="test_user",
             connect_kwargs={"key_filename": ["/path/to/key"]},
             forward_agent=False,