[Chore] Separate out vllm.utils.network_utils

[iAmir97]

Part of #26900

• vllm.utils.close_sockets -> vllm.utils.network_utils.close_sockets
• vllm.utils.get_ip -> vllm.utils.network_utils.get_ip
• vllm.utils.test_loopback_bind -> vllm.utils.network_utils.test_loopback_bind
• vllm.utils.get_loopback_ip -> vllm.utils.network_utils.get_loopback_ip
• vllm.utils.is_valid_ipv6_address -> vllm.utils.network_utils.is_valid_ipv6_address
• vllm.utils.split_host_port -> vllm.utils.network_utils.split_host_port
• vllm.utils.join_host_port -> vllm.utils.network_utils.join_host_port
• vllm.utils.get_distributed_init_method -> vllm.utils.network_utils.get_distributed_init_method
• vllm.utils.get_tcp_uri -> vllm.utils.network_utils.get_tcp_uri
• vllm.utils.get_open_zmq_ipc_path -> vllm.utils.network_utils.get_open_zmq_ipc_path
• vllm.utils.get_open_zmq_inproc_path -> vllm.utils.network_utils.get_open_zmq_inproc_path
• vllm.utils.get_open_port -> vllm.utils.network_utils.get_open_port
• vllm.utils.get_open_ports_list -> vllm.utils.network_utils.get_open_ports_list
• vllm.utils._get_open_port -> vllm.utils.network_utils._get_open_port
• vllm.utils.find_process_using_port -> vllm.utils.network_utils.find_process_using_port
• vllm.utils.split_zmq_path -> vllm.utils.network_utils.split_zmq_path
• vllm.utils.make_zmq_path -> vllm.utils.network_utils.make_zmq_path
• vllm.utils.make_zmq_socket -> vllm.utils.network_utils.make_zmq_socket
• vllm.utils.zmq_socket_ctx -> vllm.utils.network_utils.zmq_socket_ctx

Purpose

Test Plan

Test Result

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.
• (Optional) Release notes update. If your change is user facing, please update the release notes draft in the Google Doc.

[mergify]

Documentation preview: https://vllm--27164.org.readthedocs.build/en/27164/

[gemini-code-assist]

Code Review

This pull request is a good refactoring effort to separate network utility functions into their own module, vllm.utils.network_utils. The changes primarily involve moving code and updating import statements across the codebase, which improves modularity and maintainability. I've identified a potential resource leak in the get_ip function and provided a suggestion to fix it.

[chatgpt-codex-connector]

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[DarkLight1337]

Thanks! See if the tests pass

[iAmir97]

/gemini review

[gemini-code-assist]

Code Review

This pull request refactors network utility functions from vllm.utils into a new vllm.utils.network_utils module, which is a good step for code organization. However, the implementation for backward compatibility is incomplete, which could introduce breaking changes for users importing the moved functions from their old location. My review includes a critical fix to ensure a smooth transition with proper deprecation warnings.