利用Nginx反向代理功能自建CDN加速页面服务

wget http://nginx.org/download/nginx-1.10.3.tar.gz
wget http://labs.frickle.com/files/ngx_cache_purge-2.3.tar.gz
tar zxf nginx-1.10.3
tar zxf ngx_cache_purge-2.3.tar.gz

cd nginx-1.10.3
./configure –prefix=/usr/local/nginx –user=www –group=www –add-module=../ngx_cache_purge-2.3

make && make install

/usr/local/nginx/sbin/nginx -V

proxy_connect_timeout 5;
proxy_read_timeout 60;
proxy_send_timeout 5;
proxy_buffer_size 16k;
proxy_buffers 4 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;
proxy_cache_path /data/wwwroot/static.jb51.net levels=1:2 keys_zone=cache_one:200m inactive=30d max_size=5g;
proxy_temp_path /data/wwwroot/static.jb51.net/tmp;

location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|ico|js|css)$ {
proxy_pass https://www.jb51.net;
proxy_redirect off;
proxy_set_header Host www.jb51.net;
proxy_cache cache_one;
proxy_cache_valid 200 302 304 365d;
proxy_cache_valid 301 1d;
proxy_cache_valid any 1m;
add_header Images-Cache “$upstream_cache_status from $host”;
add_header Pragma public;
add_header Cache-Control “public, must-revalidate, proxy-revalidate”;
access_log off;
log_not_found off;
expires max;
}

if ( !is_admin() ) {
add_action(‘wp_loaded','lovekk_ob_start');
function lovekk_ob_start() {
ob_start(‘lovekk_cdn_replace');
}
function lovekk_cdn_replace($html) {
return str_replace(‘https://www.jb51.net/wp-content/uploads/', ‘http://static.jb51.net/wp-content/uploads/', $html);
}
}