port mapping not working?

[opichon]

I have a bunch of docker containers, which obviously must each expose different ports.
I want to use the proxy so that each container is accessible via a different url, but all with port 80. That is the whole point, isn't it.

This used to work, but not anymore.

Now each container works only on its original port.

For example, if I have defined a container with nginx on port 8001, and I map it to my.hostname.org, then I can only open it in a browser with this url: http://my.hostname.org:8001

http://my.hostname.org gives me a nginx "service unavailable error" message.

[wader]

Can you provide more information? how are the containers configured and started? using the new docker networking? how does the generated nginx config look?

[opichon]

The problem, as far as I can see, comes from using version 2.0 docker-compose files. The same file, written in version 1, works. When written in version 2.0, it doesn't. The only difference is that in version 2, the file starts with:

version: "2"
services:
etc.

Using version 2, the proxy container's /etc/nginx/conf.d/default.conf file shows entries without a host ip address, like this:
upstream www.frimus.org {
# october_nginx_1
server :80;
}

When using version 1, the entry shows an ip address:

upstream www.frimus.org {
# october_nginx_1
server 172.17.0.9:80;
}

[opichon]

Here are the versions of docker and docker-compose I use:
Docker version 1.10.1, build 9e83765
docker-compose version 1.6.0, build unknown

[wader]

Version 2 will use the new networks feature that nginx-proxy does not support yet. There are some efforts going on to support it #305 #337

[tkw1536]

Resolved by #337.