nginx location+proxy_pass?

[Roxis]

On Friday 19 October 2007, David Salgado wrote:
> Hi All
>
> I'm trying to move a bunch of rails apps from an apache/fastcgi
> platform to nginx/mongrel_cluster.
>
> What I want is something like this;
>
>     http://my.server/app1 --> mongrel_cluster1
>
>     http://my.server/app2 --> mongrel_cluster2
>
> I can do this in nginx with something like this;
>     ...
>     upstream mongrel_cluster1 {
>       server 127.0.0.1:3001;
>       server 127.0.0.1:3002;
>     }
>
>     upstream mongrel_cluster2 {
>       server 127.0.0.1:4001;
>       server 127.0.0.1:4002;
>     }
>
>   server {
>     ...
>     location /app1 {
>       proxy_pass http://mongrel_cluster1;
>       break;
>     }
>
>     location /app2 {
>       proxy_pass http://mongrel_cluster2;
>       break;
>     }
>
>    ...
>
> But, the problem is that I'm now hitting my rails apps with paths like
> this;
>
>     /app1/controller/method
>
>     /app2/controller/method
>
> ....when the apps want the paths to be just /controller/method
>
> So, I want to use something like this to remove the 'app1' part;
>
>    rewrite  ^/app1/(.*)$  /$1  permanent;
>
> But, that seems to override the proxy_pass directive, because if I put
> that in my location blocks, I just get 404 errors, and it's not
> allowed in my upstream blocks.
>
> I know I could use virtual hosts, with a different subdomain for each
> app, but that would be this;
>
>     http://app1.my.server --> mongrel_cluster1
>
>     http://app2.my.server --> mongrel_cluster2
>
> ....which is not what I want.
>
> Is there any way to achieve what I want, using nginx?
>
> Thanks in advance for any help.
>
> David

proxy_pass http://mongrel_cluster1/app1