初探nginx负载均衡配置

[root@localhost conf]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx_test.conf

-c参数表示加载指定的配置文件，后面跟的是文件路径

    upstream tomcat
    {
      server localhost:8080;   # 对应之前server下location中添加的 proxy_pass
    } 
    upstream ApprPhD
    {
       server 192.168.0.107:3030;
    }

server {
        listen    80 default_server;
        server_name demo.com ;
        #charset koi8-r;


        location / {
        proxy_pass http://tomcat;
        }


        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
}
    server {
        listen    80 default_server;
        server_name demo.com ;
        #charset koi8-r;

        location / {
        proxy_pass http://tomcat;  #对应上面upstream tomcat
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

       location /jenkins {                #nodeJs服务器
              proxy_pass  http://tomcat;   # 对应上面upstream tomcat

              proxy_set_header        Host $host;
              proxy_set_header        X-Real-IP $remote_addr;  #获取真实ip
              proxy_connect_timeout   90;
              proxy_send_timeout      90;
              proxy_read_timeout      90;
              proxy_buffer_size       4k;
              proxy_buffers           4 32k;
              proxy_busy_buffers_size 64k;
              proxy_temp_file_write_size 64k;
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;#获取代理者的真实ip
              proxy_redirect          off;
       }
       location /ApprPhD {                #nodeJs服务器
              proxy_pass http://ApprPhD;   # 对应上面upstream为ApprPhD
              proxy_set_header        Host $host;
              proxy_set_header        X-Real-IP $remote_addr;  #获取真实ip
              proxy_set_header REMOTE-HOST $remote_addr;
              proxy_connect_timeout   90;
              proxy_send_timeout      90;
              proxy_read_timeout      90;
              proxy_buffer_size       4k;
              proxy_buffers           4 32k;
              proxy_busy_buffers_size 64k;
              proxy_temp_file_write_size 64k;
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;#获取代理者的真实ip
              proxy_redirect          off;
       }
    }