vroom/docs/httpd/httpd_vhost.conf

<VirtualHost *:80>
    ServerName vroom.example.com
    DocumentRoot /opt/vroom/public
    RewriteEngine on
    RewriteRule ^/(.*|$) https://%{HTTP_HOST}/$1 [L,R]
</VirtualHost>
<VirtualHost *:443>
    ServerName vroom.example.com
    SSLEngine on
    DocumentRoot /opt/vroom/public
    <IfModule mod_proxy_wstunnel.c>
      ProxyPass /socket.io/1/websocket ws://localhost:8090/socket.io/1/websocket
      ProxyPassReverse /socket.io/1/websocket ws://localhost:8090/socket.io/1/websocket
    </IfModule>

    # Etherpad example
    # If you install etherpad on the same box, listening on its default
    # port (9001) and want it to be accessible on /etherpad/
    # <IfModule mod_proxy_wstunnel.c>
    #   ProxyPass /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
    #   ProxyPassReverse /etherpad/socket.io/1/websocket ws://localhost:9001/socket.io/1/websocket
    # </IfModule>
    # ProxyPass /etherpad/ http://localhost:9001/
    # ProxyPassReverse /etherpad/ http://localhost:9001/


    ProxyPass / http://127.0.0.1:8090/
    ProxyPassReverse / http://127.0.0.1:8090/
    <Proxy *>
      ProxyPreserveHost On
    </Proxy>
    <Location />
      Require all granted
      <IfModule mod_deflate.c>
        AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript text/css
        SetOutputFilter DEFLATE
        BrowserMatch ^Mozilla/4 gzip-only-text/html
        BrowserMatch ^Mozilla/4.0[678] no-gzip
        BrowserMatch ^HMSIE !no-gzip !gzip-only-text/html
        SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
      </IfModule>
      <IfModule mod_headers.c>
        Header append Vary User-Agent env=!dont-vary
        Header unset ETag
      </IfModule>
      ExpiresActive on
      ExpiresDefault                     "access plus 1 month"
      ExpiresByType text/html            "access plus 0 seconds"
    </Location>
    # You should customize this part to access the admin interface
    # VROOM doesn't handle authentication, it's up to you to protect
    # /admin on your web server
    <Location /admin>
      require local
    </Location>
</VirtualHost>