docker pull nginx:latest

docker run --name nginx -p 8080:80 -d nginx

Docker exec -it nginx bash

apt-get update 
apt-get install vim

upstream ServiceInstance{   #nginx默认轮询下面的服务实例
  server ***.**.***.***:9007; 
  server ***.**.***.***:9008; 
  server ***.**.***.***:9009;
} 
server { 
  listen    80; 
  server_name localhost; 
 
  #charset koi8-r; 
  #access_log /var/log/nginx/host.access.log main; 
 
  location / { 
    #root  /usr/share/nginx/html; 
    #index index.html index.htm;     #请求到达后会进行转发
    proxy_pass http://ServiceInstance; 
  } 
 
  #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  /usr/share/nginx/html; 
  } 
 
  # proxy the PHP scripts to Apache listening on 127.0.0.1:80 
  # 
  #location ~ \.php$ { 
  #  proxy_pass  http://127.0.0.1; 
  #} 
 
  # 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; 
  #} 
}

docker restart nginx

upstream ServiceInstance{ 
  #nginx默认轮询下面的服务实例
  server ***.**.***.***:9007 weight=1; 
  server ***.**.***.***:9008 weight=2; 
  server ***.**.***.***:9009 weight=3;
}