Streamlit fails to start because external IP not detected

🎈 Using Streamlit
1

Hi,

I am trying to run a streamlit app on an EKS cluster pod which has no direct connection to the internet. The app fails to start and I see the following error:

Did not auto detect external IP.
Please go to https://docs.streamlit.io/ for debugging hints.

Please report this bug at https://github.com/streamlit/streamlit/issues.

EXCEPTION! 'NoneType' object has no attribute 'strip'
  File "/usr/local/bin/streamlit", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/streamlit/cli.py", line 188, in main_hello
    _main_run(filename)
  File "/usr/local/lib/python3.7/site-packages/streamlit/cli.py", line 257, in _main_run
    bootstrap.run(file, command_line, args)
  File "/usr/local/lib/python3.7/site-packages/streamlit/bootstrap.py", line 241, in run
    ioloop.start()
  File "/usr/local/lib/python3.7/site-packages/tornado/platform/asyncio.py", line 132, in start
    self.asyncio_loop.run_forever()
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 523, in run_forever
    self._run_once()
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 1758, in _run_once
    handle._run()
  File "/usr/local/lib/python3.7/asyncio/events.py", line 88, in _run
    self._context.run(self._callback, *self._args)
  File "/usr/local/lib/python3.7/site-packages/tornado/ioloop.py", line 758, in _run_callback
    ret = callback()
  File "/usr/local/lib/python3.7/site-packages/tornado/stack_context.py", line 300, in null_wrapper
    return fn(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/tornado/gen.py", line 326, in wrapper
    yielded = next(result)
  File "/usr/local/lib/python3.7/site-packages/streamlit/server/Server.py", line 402, in _loop_coroutine
    traceback.print_stack(file=sys.stdout)

Looking at the streamlit code, this appears to happen in: https://github.com/streamlit/streamlit/blob/018f49f5ddb0fa0119c17aaf2bff1bc7f25f70e1/lib/streamlit/net_util.py

Is it possible to bypass this check through a config setting? Maybe provide a dummy external IP through the command line option? Or is the external access critical for some functionality?

Thanks,
Ashutosh

2

I was able to resolve this using the command line flag --server.headless=false.