Reverse proxy

I really love this project and was trying to deploy it on my personal webserver. I would like to put it in a docker container behind some Apache reverse proxy, like:

<VirtualHost *:443>

ServerName              my-host

SSLCertificateFile      /etc/pki/tls/certs/my-host.crt
SSLCertificateKeyFile   /etc/pki/tls/private/my-host.key
SSLCertificateChainFile /etc/pki/tls/certs/my-host.ca-bundle

ProxyPreserveHost on

  <Location /cex>
    ProxyPass        http://172.17.0.4:10240
    ProxyPassReverse http://172.17.0.4:10240
  </Location>

</VirtualHost>

However, the page frequently fails to load (no CSS), and even if it loads the compilation still fails. This does not happen if I directly access via the docker container’s ip.

Could you please show me how to correctly configure reverse proxy for CE?

[bjodah]

For posterity (googling reverse proxy and compiler-explorer lead me to this issue):

With the help of @apmorton (and @partouf) I managed to host a compiler-explorer instance in docker with port 10240 (--publish 10240:10240), and serving it over https under a URL prefix, by using a reverse proxy in my nginx server on the same host machine (so that I can share a link like https://example.com/compiler-explorer).

Here’s the relevant nginx config section:

location /compiler-explorer {
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        proxy_buffer_size          128k;
        proxy_buffers              4 256k;
        proxy_busy_buffers_size    256k;

        proxy_pass http://127.0.0.1:10240;
}

note that inside the docker container, make sure to edit httpRoot to be /compiler-explorer

This can be achieved e.g. this way:

$ echo "httpRoot=/compiler-explorer">>etc/config/compiler-explorer.defaults.properties
$ make run

[mattgodbolt]

Gonna close this due to inactivity, and I think things worked out, right?