nginx代理天地图

http {
    upstream tianditu_server {
        server t0.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t1.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t2.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t3.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t4.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t5.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t6.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
        server t7.tianditu.gov.cn:443 weight=1 max_fails=2 fail_timeout=30s;
    }

    server {
        listen       *:80;
        server_name  localhost;

        location /tianditu/ {
            proxy_pass https://tianditu_server/;
            proxy_set_header Host t6.tianditu.gov.cn;
            proxy_ssl_session_reuse off;
            proxy_ssl_server_name on;
            proxy_ssl_name $proxy_host;
            proxy_ssl_protocols TLSv1.2;
        }
    }
}