using variables in nginx.conf with 'set'

[Adrian Janeczek]

lol

2010/10/22 Arthur Blake <arthur.blake at gmail.com>

> It seems like the set command was designed for use in a narrow set of
> circumstances.  But I think it would be a lot more useful if the variables
> it defines could be used globally with any directive.
>
> I am trying to use the 'set' command in order to define my own variables
> that define things that may vary by server in a main nginx.conf file so that
> a generic reusable include file can later use those variables.  It seems
> that the variables only work in certain places with certain directives.
>
> Is there a reason I can't use variables set this way more widely?  I would
> like to be able to use variables like this anywhere in the config files.
>
> In the example below, I define two variables with the 'set' command,
> $rootfolder and $backend.
>
> The $rootfolder variable doesn't work with the include directive and the
> $backend doesn't work with the proxy_pass directive.
> But the $rootfolder does work with the $alias directive.
>
> #main nginx.conf
> server
> {
>   listen 80;
>   server_name www.justatest.xxx
>   set $rootfolder /Development
>   set $backend http://127.0.0.1:8080
>   # This doesn't work!
>   # include $rootfolder/mytest/vhost.conf;
>   # have to use this instead
>   include /Development/mytest/vhost.conf;
> }
>
>
> #vhost.conf include
>
> location /
> {
>   proxy_set_header X-Forwarded-Host $host;
>   proxy_set_header X-Forwarded-Server $host;
>   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
>   proxy_set_header X-Rewrite-URL $request_uri;
>   # this doesn't work!
>   # proxy_pass $backend;
>   # have to use this instead
>   proxy_pass http://127.0.0.1:8080;
> }
>
> location /resources/
> {
>   # this DOES work
>   alias $websites/www/resources/;
> }
>
>
> --Thanks
>
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>
>


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