Deploying a minimal flask app in docker - server connection issues

Question

I have an app who\'s only dependency is flask, which runs fine outside docker and binds to the default port 5000. Here is the full source:

from          


        

Answer 1

The problem is you are only binding to the localhost interface, you should be binding to 0.0.0.0 if you want the container to be accessible from outside. If you change:

if __name__ == '__main__':
    app.run()

to

if __name__ == '__main__':
    app.run(host='0.0.0.0')

It should work.