Installed one click app Docker 17.03.0-ce on 16.04, how do I configure nginx?

My problem was that the firewall settings did not define a rule for port 80.

# Before
$ ufw status
To                         Action      From
--                         ------      ----
22                         LIMIT       Anywhere                  
2375/tcp                   ALLOW       Anywhere                  
2376/tcp                   ALLOW       Anywhere                  
22 (v6)                    LIMIT       Anywhere (v6)             
2375/tcp (v6)              ALLOW       Anywhere (v6)             
2376/tcp (v6)              ALLOW       Anywhere (v6) 

I add a rule for 80/tcp,

$ ufw add 80/tcp

So,

$ ufw status                                                                                                                         
Status: active

To                         Action      From
--                         ------      ----
22                         LIMIT       Anywhere                  
2375/tcp                   ALLOW       Anywhere                  
2376/tcp                   ALLOW       Anywhere                  
80/tcp                     ALLOW       Anywhere                  
22 (v6)                    LIMIT       Anywhere (v6)             
2375/tcp (v6)              ALLOW       Anywhere (v6)             
2376/tcp (v6)              ALLOW       Anywhere (v6)             
80/tcp (v6)                ALLOW       Anywhere (v6) 

And now, i access both http://DROPLET_IP and http://example.com.

I hope that will be useful for you.

I have same problem. I have installed nginx and configure with default setting. I get success via console ($curl http://localhost) but I get ERR_CONNECTION_TIMED_OUT error http://DROPLET_IP in browser in the same way with http://example.com domain. Switching the machines off/stop by running the docker stop command did not change anything.

Can you offer any guide or tutorial for production environment (specifically docker)? Thanks for your time and interest