nginx 反向代理 负载均衡配置

nginx 反向代理：

location ~ \.(jpeg|jpg|png|gif)${
    proxy_pass http://192.168.2.42:80;
    proxy_set_header X-Forwarded-For $remote_addr;
}

负载均衡：

upstream imageserver{
    server 192.168.1.204:80 weight=1 max_fails=2 fail_timeout=30
    server 192.168.1.202:80 weight=1 max_fails=2 fail_timeout=30
    server 192.168.1.203:80 weight=1 max_fails=2 fail_timeout=30
}

location ~ \.(jpeg|jpg|png|gif)${
    proxy_pass http://imgserver;
    proxy_set_header X-Forwarded-For $remote_addr;
}