Please help with proxy_pass and trailing slash!

[Valentin V. Bartenev]

On Wednesday 14 March 2012 21:05:55 Roddick wrote:
> I have a php site with location /app served by Java app server on same
> server port 9001
> 
> What is in /app/ should become / (root) for Java app server
> 
> I have this in config:
> 
> server {
> ...
> index index.html index.htm index.php;
> 
>  location /app  {
> 
>                 proxy_pass  http://localhost:9001;
>                 proxy_next_upstream error timeout invalid_header
> http_500 http_502 http_503;
> 
>                 proxy_set_header Host $host;
>                 proxy_set_header X-Real-IP $remote_addr;
>                 proxy_set_header X-Forwarded-For
> $proxy_add_x_forwarded_for;
> 
>                 proxy_set_header X-Forwarded-Proto https;
> 
>                 proxy_redirect     off;
>       }
> 
>      location / {
>               # First attempt to serve request as file, then
>                 # as directory, then fall back to index.html
>                 try_files $uri $uri/ /index.php?$args;
>         }

Just a side note, you don't need explicit set $args here.

    try_files $uri $uri/ /index.php;


>    location ~ index.php$ {
> 
>         try_files $uri =404;
> 
>         include fastcgi_params;
>         fastcgi_index index.php;
>         fastcgi_param SCRIPT_FILENAME
> $document_root$fastcgi_script_name;
>         fastcgi_pass 127.0.0.1:9000;
>    }
> }
> 
> with this configuration, Java server receives requests like "GET /app/"
> while it should receive "GET /"
> 
> If I add trailing slash to proxy_pass:
> 
> proxy_pass  http://localhost:9001/;
> 
> Then java server receives "GET //"  and unable to serve that either.
> 
> Do I need to involve rewrite here ? And how? or extra trailing slash is
> caused by other rewrite rules somehow?
> 

Documentation already has answers to your questions:
http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_pass

E.g., in your case:

    location /app/  {
        ...
        proxy_pass  http://localhost:9001/;
    }

 wbr, Valentin V. Bartenev