nginx.conf

user       www www;
worker_processes  5;
error_log  logs/error.log;
pid        logs/nginx.pid;
worker_rlimit_nofile 8192;

events {
  worker_connections  4096;
}

http {
  include       mime.types;
  default_type  application/octet-stream;
  log_format   main '$remote_addr - $remote_user [$time_local]  $status '
    '"$request" $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';
  access_log   logs/access.log  main;

  keepalive_timeout  65;

  sendfile on;
  tcp_nopush on;
  tcp_nodelay off;

  gzip  on;
  gzip_http_version 1.0;
  gzip_comp_level 2;
  gzip_min_length 1100;
  gzip_buffers     4 8k;
  gzip_proxied any;
  gzip_types text/html text/plain text/xml application/xml application/xml+rss text/css text/javascript application/javascript application/json;

  gzip_static on;
 
  gzip_proxied        expired no-cache no-store private auth;
  gzip_disable        "MSIE [1-6]\.";
  gzip_vary           on;

  server {
    listen 80 default deferred;
    server_name example.com;
    expires 1M;

    root /sites/example.com/public;

    #static assets
	location ~* ^.+\.(manifest)$ {
      expires -1D;
      root   /sites/example.com/public;
      access_log logs/static.log;
    }
    location ~* ^.+\.(ico|ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|css|rss|atom|js|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
      # only set expires max IFF the file is a static file and exists
      if (-f $request_filename) {
        expires max;
        root   /sites/example.com/public;
        access_log logs/static.log;
      }
    }

  }
  server {
    server_name www.example.com;
    rewrite ^(.*) http://example.com$1 permanent;
  }

}