Possible bug in "root" declaration?

[Igor Sysoev]

On Thu, May 28, 2009 at 02:51:11PM +0100, Systems Maintenance wrote:

> Below is part of a server block for a particular vhost:
> 
> server {
>    server_name mysite.tld ~^.+\.mysite\.tld$;
> 
>    set $base /var/www/mysite;
> 
>    if ( $host ~* "^(x|y|z)\.mysite\.tld$" ){
>       set $files misc;
>    }
> 
>    if ( $host ~* "^(admin)\.mysite\.tld$" ){
>       set $files admin;
>    }
> 
>    if ( $host = "mysite.tld" ){
>       set $files home;
>    }

This is not effective way. It's better to use map:

map $host  $files {
     default           home;
     mysite.tld        home;
     admin.mysite.tld  admin;
     x.mysite.tld      misc;
     y.mysite.tld      misc;
     z.mysite.tld      misc;
}

>    root $base/$files/www;
>    error_page 404 $base/errors/404.html;
> 
>    location / {
>       try_files $uri @webapp;
>    }
> 
>    location @webapp {
>       rewrite ^/([\w\d]+)/([\w\d]+)(.*)? /index.php/$1/$2?_params=$3 last;
>    }
> 
>    location ~ \.php($|/) {
>        set $script $uri;
>        set $path_info "";
> 
>        if ($uri ~ "^(.+\.php)(/.+)") {
>            set $script $1;
>            set $path_info $2;
>        }
> 
>        fastcgi_pass unix:/tmp/php-socket;
>        include conf/fastcgi_params;
>        fastcgi_intercept_errors on;
>        fastcgi_param SCRIPT_FILENAME $base/$interface$script;
>        fastcgi_param PATH_INFO $path_info;
>        fastcgi_index index.php;
>    }
> 
> }
> 
> What I'm seeing in my error log is that the error_page its trying to 
> return is: /var/www/mysite/var/www/mysite/errors/404.html instead of the 
> expected /var/www/mysite/errors/404.html

error_page uses URI, but not file:

    error_page 404 /errors/404.html;

    location = /error/404.html {
        set /var/www/mysite;
    }

> I've also tried (with no success):
> 
> error_page 404 @notfound;
> location @notfound {
>    root $base/errors;
>    error_page 404 404.html;
>    index 404.html;
> }

This is not valid way.

> Here's my version information, if it helps:
> 
> # nginx -V
> nginx version: nginx/0.7.55
> built by gcc 4.1.2 20080704 (Red Hat 4.1.2-44)
> configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx 
> --conf-path=/etc/nginx/nginx.conf 
> --error-log-path=/var/log/nginx/error.log --pid-path=/var/run/nginx.pid 
> --with-rtsig_module --with-select_module --with-poll_module 
> --with-http_ssl_module --with-http_stub_status_module 
> --with-http_gzip_static_module --with-http_flv_module 
> --with-http_random_index_module 
> --http-log-path=/var/log/nginx/access.log
> --with-md5=/usr/lib --with-sha1=/usr/lib

--with-md5- and --with-sha1= are required to build theses libraries
from sources.

> --without-mail_pop3_module 
> --without-mail_imap_module --without-mail_smtp_module 

mail modules are not built by default.

> --add-module=nginx_circle_gif-0.1.3


-- 
Igor Sysoev
http://sysoev.ru/en/