Mongrel users - Feb 2007 - OT(?): ReverseProxy and URLs

This could be OT. If so, just let me know and I apologize in advance.

I mentioned in an earlier email that I have Mongrel setup as a proxy server
behind Apache. Rails applications served by Mongrel do not find the CSS file
and hence no styles are displayed. In fact, many of the actions are not
found.The reason, I believe, is because the URLs for styles and actions
typically follow this pattern:

<!-- Style sheets -->
<link href="/stylesheets/style.css?1171939096"
media="screen"
rel="Stylesheet" type="text/css" />

(Note the first ''/''.)

When accessing a Rails app directly via a port# (http://10.4.1.84:5222)
things are fine, but not so when accessing via Apache (http://10.4.1.84/rss
).

Presumably, in this case, it''s looking for the style sheet in the
Apache
webroot and failing.

I''m fairly sure this is a ReverseProxy problem and also suspect
it''s not
uncommon. Before investigating too deeply, I wonder if some of you have
already found solutions.

The Apache httpd.conf VirtualHost directives are these:

NameVirtualHost 10.4.1.84

<VirtualHost 10.4.1.84>

    RewriteEngine on
    RewriteRule ^/rss(.*) http://10.4.1.84:5222$1 [P]
    RewriteRule ^/railstest(.*) http://10.4.1.84:8223$1 [P]

</VirtualHost>

<VirtualHost 10.4.1.84>

    ServerName rss
    ProxyPass / http://10.4.1.84:5222/
    ProxyPassReverse /rss http://10.4.1.84:5222/
    ProxyPreserveHost on

</VirtualHost>

<VirtualHost 10.4.1.84>

    ServerName railstest
    ProxyPass / http://10.4.1.84:8223/
    ProxyPassReverse /railstest http://10.4.1.84:8223/
    ProxyPreserveHost on

</VirtualHost>

Any help, as always, is appreciated.

Thanks,
Stan
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You''re going to run into issues because you want to access your
application from both urls (with the port and without).

If you just chose to use the /rss, you could start mongrel with the
app prefix /rss, which would be a start. I''m not sure if you also need
to add /rss to the end of your proxy and reverse proxy statements.

On 2/21/07, Stan Baptista <stan.baptista at gmail.com>
wrote:
> This could be OT. If so, just let me know and I apologize in advance.
>
> I mentioned in an earlier email that I have Mongrel setup as a proxy server
> behind Apache. Rails applications served by Mongrel do not find the CSS
file
> and hence no styles are displayed. In fact, many of the actions are not
> found.The reason, I believe, is because the URLs for styles and actions
> typically follow this pattern:
>
> <!-- Style sheets -->
> <link href="/stylesheets/style.css?1171939096"
> media="screen" rel="Stylesheet"
type="text/css" />
>
> (Note the first ''/''.)
>
> When accessing a Rails app directly via a port# (http://10.4.1.84:5222)
> things are fine, but not so when accessing via Apache (http://10.4.1.84/rss
> ).
>
> Presumably, in this case, it''s looking for the style sheet in the
Apache
> webroot and failing.
>
> I''m fairly sure this is a ReverseProxy problem and also suspect
it''s not
> uncommon. Before investigating too deeply, I wonder if some of you have
> already found solutions.
>
> The Apache httpd.conf VirtualHost directives are these:
>
> NameVirtualHost 10.4.1.84
>
> <VirtualHost 10.4.1.84>
>
>     RewriteEngine on
>     RewriteRule ^/rss(.*) http://10.4.1.84:5222$1 [P]
>     RewriteRule ^/railstest(.*) http://10.4.1.84:8223$1 [P]
>
> </VirtualHost>
>
> <VirtualHost 10.4.1.84>
>
>     ServerName rss
>     ProxyPass / http://10.4.1.84:5222/
>     ProxyPassReverse /rss http://10.4.1.84:5222/
>     ProxyPreserveHost on
>
> </VirtualHost>
>
> <VirtualHost 10.4.1.84>
>
>     ServerName railstest
>     ProxyPass / http://10.4.1.84:8223/
>     ProxyPassReverse /railstest http://10.4.1.84:8223/
>     ProxyPreserveHost on
>
> </VirtualHost>
> Any help, as always, is appreciated.
>
> Thanks,
> Stan
>
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