I want to run a flask application in Docker, with the flask simple http server. (Not gunicorn)
I got a host setting problem.
In the flask app.py, it should be work as the official tutorial, but it doesn't work:
if __name__ == '__main__':
app.run(host='0.0.0.0')
So I did it after an answer of a similar post, it suddenly works!:
https://stackoverflow.com/a/43015007/3279996
$> flask run --host=0.0.0.0
My question is why this first method doesn't work, but second works?