HTTP 反向代理与缓存

nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}

http {
    proxy_cache_path /cache levels=1:2 keys_zone=mirrorcache:10m max_size=500m inactive=7d;
    proxy_cache_revalidate on;

    #map $request_method $purge_method {
    #    PURGE 1;
    #    default 0;
    #}

    server {
        listen 80;
        proxy_cache mirrorcache;
        proxy_cache_key   $uri$is_args$args;
        #proxy_cache_purge $purge_method;

        location / {
            proxy_pass http://mirrors.ustc.edu.cn/;
            
            # 设置缓存时间
            proxy_cache_valid any 1m;
            add_header X-Cache-Hit $upstream_cache_status;
        }
    }
}