Fix Loadgen Over the Network (LON) Demo

[mkandes]

Add --host argument to sut_over_network_demo.py. By default, Flask will always bind the SUT to localhost (127.0.0.1), which precludes this simple LON demo from being run over a network. This minor modification allows the SUT to be bound to any network interface [2].

[1]

[mkandes_test@exp-9-55 lon]$ python sut_over_network_demo.py --port 8000

• Serving Flask app 'sut_over_network_demo'
• Debug mode: off WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on http://127.0.0.1:8000 Press CTRL+C to quit

[2]

[mkandes_test@exp-1-27 lon]$ python sut_over_network_demo.py --host 10.21.1.27 --port 8000 --node n0

• Serving Flask app 'sut_over_network_demo'
• Debug mode: off WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on http://10.21.1.27:8000 Press CTRL+C to quit

[github-actions]

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