is this possible?

[Igor Sysoev]

On Sat, Oct 20, 2007 at 04:56:43AM -0400, Adam Michaels wrote:

> I had a similar question to using nginx with Amazon's S3. Is it possible 
> for nginx to look in its local cache for an image, if its not there, grab 
> it from S3, and cache it before sending it to the user under my domain 
> instead of S3's?

Currently nginx does not really sipport caching.
However, you may implement primitive caching using mirror on demand
(proxy_store). This means that you should clean expired or unused files
by itself.

   recursive_error_pages   on;

   location  /badge/ {
       root         /data/www;
       error_page    404  =  @S3;
   }

   location  @S3 {
       proxy_pass   http://...S3...

       proxy_store          on;
       proxy_store_access   user:rw  group:rw  all:r;
       proxy_temp_path      /data/temp;
       root                 /data/www;

       proxy_intercept_errors  on;
       error_page    404  =  @rails;
   }

   location  @rails {
       proxy_pass   http://rails;

       proxy_store          on;
       proxy_store_access   user:rw  group:rw  all:r;
       proxy_temp_path      /data/temp;
       root                 /data/www;
   }


> ----- Original Message ----- 
> From: "Igor Sysoev" <is at rambler-co.ru>
> To: <nginx at sysoev.ru>
> Sent: Saturday, October 20, 2007 4:40 AM
> Subject: Re: is this possible?
> 
> 
> >On Fri, Oct 19, 2007 at 09:19:21PM -0700, Ben Marklein wrote:
> >
> >>I'm relatively new to nginx and I'm trying to figure
> >>out whether it's suitable for a specific use I have.
> >>I'd like to set up the following for serving a high
> >>volume of "badge" images in a lazy mannger.  These are
> >>images that are customized per-user, for use on social
> >>network site profile pages.  Can someone tell me if
> >>this will be possible using nginx?
> >>
> >>1) Request for /badge/username.jpg comes into nginx.
> >>It proxies(?) to S3 using a standardized scheme.
> >>2) If the image is present it's passed back via nginx.
> >> If not, we get a 404.  nginx then proxies to a Rails
> >>app that generates the image on the fly, and kicks off
> >>a background task to upload the image to S3 so that.
> >>
> >>If someone could tell me whether this is possible and
> >>ideally provide some configuration pseudocode I would
> >>be very grateful.  Thanks!
> >
> >S3 - is it Amazon S3 ?
> >
> >   location  /badge/ {
> >       proxy_pass   http://...S3...
> >
> >       proxy_intercept_errors  on;
> >       error_page    404  =  @rails;
> >   }
> >
> >   location  @rails {
> >       proxy_pass   http://rails;
> >   }
> >
> >
> >-- 
> >Igor Sysoev
> >http://sysoev.ru/en/
> >
> >
> >
> 
> 

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