Docker Rails app fails to be served - curl: (56) Recv failure: Connection reset by peer

Question

I build a Rails app container with the following Dockerfile:

$ cat Dockerfile
FROM ruby:2.2

MAINTAINER Luca G. Soave 

RUN apt-g         


        

Answer 1

Rails server documentation states that the server by default binds to localhost, and this usually prevents dockerized application to accept connections. Try changing it to 0.0.0.0.