[root@masterserver ~]# mkdir -p /data/stie_cache 
[root@masterserver ~]# 

location ~* ^/resize {
root /data/site_cache/$server_name;
set $width 150;
set $height 100;
set $dimens "";
if ($uri ~* "^/resize_(\d+)x(\d+)/(.*)" ) {
set $width $1;
set $height $2;
set $image_path $3;
set $demins "_$1x$2";
}
if ($uri ~* "^/resize/(.*)" ) {
set $image_path $1;
}
set $image_uri image_resize/$image_path?width=$width&height=$height;
if (!-f $request_filename) {
proxy_pass http://127.0.0.1/$image_uri;
break;
}
proxy_store /data/site_cache/$server_name/resize$demins/$image_path;
proxy_store_access user:rw group:rw all:r;
proxy_set_header Host $host;
expires 30d;
access_log off;
}
location /image_resize {
alias /data/site/$server_name/;
image_filter resize $arg_width $arg_height;
image_filter_jpeg_quality 75;
access_log off;
}

[root@masterserver conf]# cat nginx.conf
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
location / {
root html;
index index.html index.htm;
image on;
image_output on;
}
location ~* ^/resize {
root /data/site_cache/$server_name;
set $width 150;
set $height 100;
set $dimens "";
if ($uri ~* "^/resize_(\d+)x(\d+)/(.*)" ) {
set $width $1;
set $height $2;
set $image_path $3;
set $demins "_$1x$2";
}
if ($uri ~* "^/resize/(.*)" ) {
set $image_path $1;
}
set $image_uri image_resize/$image_path?width=$width&height=$height;
if (!-f $request_filename) {
proxy_pass http://127.0.0.1/$image_uri;
break;
}
proxy_store /data/site_cache/$server_name/resize$demins/$image_path;
proxy_store_access user:rw group:rw all:r;
proxy_set_header Host $host;
expires 30d;
access_log off;
}
location /image_resize {
alias /data/site/$server_name/;
image_filter resize $arg_width $arg_height;
image_filter_jpeg_quality 75;
access_log off;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}
[root@masterserver conf]#