[Cross post from stack overflow since I think server configuration might be the problem]
I'm building a multi-container application with Docker. The full environment is on github should you wish to recreate it, but I include what I believe to be the relevant parts below for convenience. My nginx Dockerfile is like so:
FROM ubuntu:14.04
MAINTAINER Garry Cairns
ENV REFRESHED_AT 2015-02-11
# get the nginx package and set it up
RUN ["apt-get", "update"]
RUN ["apt-get", "-y", "install", "nginx"]
# forward request and error logs to docker log collector
RUN ln -sf /dev/stdout /var/log/nginx/access.log
RUN ln -sf /dev/stderr /var/log/nginx/error.log
VOLUME ["/var/cache/nginx"]
EXPOSE 80 443
# load nginx conf
ADD ./site.conf /etc/nginx/sites-available/correspondence
RUN ["ln", "-s", "/etc/nginx/sites-available/correspondence", "/etc/nginx/sites-enabled/correspondence"]
CMD ["nginx", "-g", "daemon off;"]
And the site.conf file being added to sites-enabled looks like this:
# see http://serverfault.com/questions/577370/how-can-i-use-environment-variables-in-nginx-conf#comment730384_577370
upstream api {
server api_1:8000;
}
server {
location / {
proxy_pass http://api;
}
}
The nginx configuration there seems similar enough to that found in this answer that I feel the approach should be okay. But when I visit localhost (no port) on my machine or my domain in production I just get the nginx welcome page, no forwarding is going on.
I can connect to the running nginx container and wget correct results from the app container using http://api_1:8000 so I'm pretty sure the problem is in my nginx setup rather than my Docker one, but I can't puzzle this one out. Has anyone else solved this problem in the past?
