Virtualhost subsomains don't work with Dokku

  • Posted June 23, 2014

I am using an Ubuntu 14.04 machine with Dokku installed. I followed the instructions in these tutorials

And made sure to setup subdomains and everything else. The issue is I deployed a Rails app to a fresh Droplet and it was launched at the root of my hostname, rather than at the subdomain, as I thought it would.

In addition, when I go to this address:

It says the host name could not be resolved.

So I created a second app and deployed that too. Same thing at the subdomain of app 2.

Then I checked the docker processes, and I see this:

dokku/sample2:latest>5000/tcp dokku/sample:latest>5000/tcp

Both apps are mapping to the same port. Ok, I guess that’s ok as long as the virtualhosts work. But they don’t. So I don’t know what else to do.


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Remember to check the box labeled “Use virtualhost naming for apps” when you first browse to the IP address. The seu up view looks like:

If you don’t, then you will have to access the apps over their port instead of by subdomain.