How to Config NGINX as api gateway When using Zookeeper registry

Question

how to config nginx read dynamic service when service registry zookeeper. sorry for my bad English

in application.yml.

spring:
  cloud:
    zookeeper:
      connect-string: localhost:2181

in file api_gateway.conf i have upstream:

upstream user_server {
  least_conn;
  server 192.168.0.111:8080;
  server 192.168.0.112:8080;
}

upstream email_server {
  least_conn;
  server 192.168.0.111:8081;
  server 192.168.0.112:8081;
}

in nginx.conf i include api_gateway.conf and use

location /auth {
      proxy_pass http://user_server;
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }

    # config server email
  location /email {
      proxy_pass http://email_server;
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }

it succeeds. but i want nginx read ip and port from zookeeper discovery as like spring cloud gateway and spring eureka.