Issue with Ports deploying to Dokku Droplet

Posted on July 5, 2020

Hi There

I am a really novice using dokku and follow this tutorial : https://auth0.com/blog/hosting-applications-using-digitalocean-and-dokku/

But even the basic steps did not work to reach my simple HELLO WORLD application

I have this status :

dokku proxy:ports dokkuexp -----> Port mappings for dokkuexp -----> scheme host port container port http 58270 5000

But trying to reach my app in both ways give me a The site can’t be reached :

http://MYdropletip:5000 or http://goodfy-dokku-at-docean:5000 and even

http://goodfy-dokku-at-docean:58270

I have checked instructions regarding uff … but even with status root@goodfy-dokku-at-docean:~# sudo ufw status Status: active

To Action From

22/tcp ALLOW Anywhere 80/tcp ALLOW Anywhere 443/tcp ALLOW Anywhere 2375/tcp ALLOW Anywhere 2376/tcp ALLOW Anywhere 5000/tcp ALLOW Anywhere 22/tcp (v6) ALLOW Anywhere (v6) 80/tcp (v6) ALLOW Anywhere (v6) 443/tcp (v6) ALLOW Anywhere (v6) 2375/tcp (v6) ALLOW Anywhere (v6) 2376/tcp (v6) ALLOW Anywhere (v6) 5000/tcp (v6) ALLOW Anywhere (v6)

Things do not work … What do I missing ? Thanks in advance

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alexdo

June 30, 2023

Heya,

Just came across this answer and decided to write some general guidelines for anyone who comes across this in the future despite the old question.

It seems like your application is not reachable despite Dokku running and port mappings set correctly. There may be a number of reasons causing this issue. Ensuring that your application is running correctly would be the first step. You may use the command dokku ps:report to check the state of your applications.

If your application is running correctly then the issue could possibly reside with the networking or firewall settings of your DigitalOcean Droplet. Ensure that the firewall on your Droplet allows incoming connections to the ports that your application is running on. You’ve already mentioned ufw firewall but you should also check DigitalOcean’s Cloud Firewalls if you have them enabled.

Since Dokku uses Nginx for its network interface, another possibility could be an issue with the Nginx configuration. You may wish to check the Nginx error logs for any problems.

Kindly refer to these DigitalOcean docs for more detailed help:

Hope that this helps!