nginx 配置图片缓存服务器，nginx.conf的配置

最近在搞云计算，弄了一个图片缓存服务器服务器，搭了一阵子，做个笔记。

教程转自Hermit_Macx，感谢作者，地址http://hermit-macx.iteye.com/blog/1697375

PS：proxy_cache_purge 需要另外下载包，不然报错，先注释了把

nginx.conf:

user had;
worker_processes 8;

error_log /usr/local/nginx/nginx8011/logs/error.log crit;

pid /usr/local/nginx/nginx8011/logs/nginx.pid;

events {
use epoll;
worker_connections 65535;
}

http {
include mime.types;
default_type application/octet-stream;

charset utf-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 300m;
sendfile on;
tcp_nopush on;

keepalive_timeout 60;
tcp_nodelay on;
client_body_buffer_size 512k;
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;

gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.1;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;
gzip_vary on;

#注：images_temp和images_cache指定的路径必须在同一分区
proxy_temp_path /usr/local/nginx/nginx8011/html/tmp;
#设置Web缓存区名称为cache_one，内存缓存空间大小为200MB，1天没有被访问的内容自动清除，硬盘缓存空间大小为30GB。
proxy_cache_path /usr/local/nginx/nginx8011/html/cache levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30g;

server {
listen 80;
server_name localhost;
location / {
proxy_cache cache_one;
#对不同的HTTP状态码设置不同的缓存时间
proxy_cache_valid 200 304 12h;
#以域名、URI、参数组合成Web缓存的Key值，Nginx根据Key值哈希，存储缓存内容到二级缓存目录内
proxy_cache_key $host$uri$is_args$args;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://localhost:8080; log_format cache '***$time_local ' '***$upstream_cache_status ' '***Cache-Control: $upstream_http_cache_control ' '***Expires: $upstream_http_expires ' '***"$request" ($status) ' '***"$http_user_agent" ';
access_log /usr/local/nginx/nginx8011/logs/cache.log cache;
expires 1d;
}

#用于清除缓存，假设一个URL为http://localhost/test.txt，通过访问http://localhost/purge/test.txt就可以清除该URL的缓存。
location ~ /purge(/.*) {
#设置只允许指定的IP或IP段才可以清除URL缓存。
allow 127.0.0.1;
allow 192.168.0.0/16;
deny all;
#proxy_cache_purge cache_one $host$1$is_args$args;
}

#扩展名以.php、.jsp、.cgi结尾的动态应用程序不缓存。
location ~ .*\.(php|jsp|cgi)?$ {
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://localhost:8080; }
access_log off;
}

server{
listen 8080;
server_name localhost;

location / {
root html;
index index.html index.htm;
}
access_log off;
}
}