NGINX 根据IP 选择后端服务器，并在响应中返回后端服务器标识

2019独角兽企业重金招聘Python工程师标准>>>

worker_processes  1;  
  
#error_log  logs/error.log;  
#error_log  logs/error.log  notice;  
error_log   logs/error.log  info;  


pid        logs/nginx.pid;




events { 
    worker_connections  2048;

multi_accept on;
}






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


    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';


    access_log  logs/access.log  main;


    geo $geo{
        192.168.1.0/24 yy;
        default local;
    }
    upstream yy.server{
        server 192.168.1.30:8080;
    }
    upstream local.server{
        server localhost:8080;
    }
    sendfile        on;
    #tcp_nopush     on;


    #keepalive_timeout  0;
    keepalive_timeout  65;


    #gzip  on;
server {
        listen       80;
        server_name www.abcdefg.com;
        charset UTF-8;
        #access_log  logs/$host:.access.log  main;
include proxy.conf;
        location / {
            index       index.jsp index.html;
proxy_pass  http://$geo.server$request_uri;
proxy_set_header   Host             $host:80;
proxy_set_header   X-Real-IP        $remote_addr;
proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
proxy_set_header   Cookie $http_cookie; 
proxy_set_header   Upgrade $http_upgrade;
proxy_set_header   Connection "upgrade";  #支持websocket
add_header   RealServer $geo.server;
        }




        error_page  404              /404.html;


        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }


        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}


        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }









    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;


    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}




    # HTTPS server
    #
    #server {
    #    listen       443;
    #    server_name  localhost;


    #    ssl                  on;
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;


    #    ssl_session_timeout  5m;


    #    ssl_protocols  SSLv2 SSLv3 TLSv1;
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers   on;


    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


}

转载于:https://my.oschina.net/yangyan/blog/336047