docker nginx-proxy“坏网关”

Question

I have what I think is exactly the setup prescribed in the documentation. Easy peasy, development-only, no SSL ... But I'm getting "Bad Gateway."

docker exec ... cat /etc/nginx/conf.d/default.conf

... seems to correctly identify the internal IP-address of the other-container of interest ... which means that scanning for ENV VIRTUAL_HOST obviously worked:

upstream my_site.local {
   [...]
   server 172.16.238.5:80    # CORRECT!
}

When I do docker logs app_server I see ... silence. The server isn't being contacted.

When I do docker logs nginx_proxy I see this:

failed (111: connection refused) while connecting to upstream, client 172.16.238.1 [...] upstream: "172.16.238.5:80/"

The other container specifies EXPOSE 80 ... so, why is the connection being refused and who is refusing it?

Answer 1

Well, as I said above, I realized the error of my ways and did this:

• VIRTUAL_PROTO=fastcgi
• VIRTUAL_ROOT=/var/www

... and within the Dockerfile of the app container I apparently did need to EXPOSE 9000 . (This being the default port used by php-fpm for FastCGI purposes.)