server:
  port: 8764
spring:
  application:
    name: eureka-server
eureka:
  server:
    waitTimeInMsWhenSyncEmpty: 0
    enableSelfPreservation: false
    remoteRegionUrlsWithName:
      region-east: http://localhost:8761/eureka/
  client:
    register-with-eureka: true
    fetch-registry: true
    region: region-west
    service-url:
      zone3: http://localhost:8763/eureka/
      zone4: http://localhost:8764/eureka/
    availability-zones:
      region-west: zone3,zone4
  instance:
    hostname: localhost
    metadataMap.zone: zone4

//框架源码
package org.springframework.cloud.netflix.eureka.server;

import ......

@ConfigurationProperties("eureka.server")
public class EurekaServerConfigBean implements EurekaServerConfig {
    public static final String PREFIX = "eureka.server";
    private static final int MINUTES = 60000;
    @Autowired(
        required = false
    )
    PropertyResolver propertyResolver;
    private String aWSAccessId;
    //.....private String[] remoteRegionUrls;
    private Map<String, Set<String>> remoteRegionAppWhitelist;
　　//......
}

import com.netflix.discovery.EurekaClientConfig;
import com.netflix.eureka.EurekaServerConfig;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cloud.netflix.eureka.server.EurekaServerAutoConfiguration;
import org.springframework.cloud.netflix.eureka.server.EurekaServerConfigBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;

/**
 * 配置类
 */
@Configuration
@AutoConfigureBefore(EurekaServerAutoConfiguration.class)//当前配置类EurekaServerAutoConfiguration加载完毕后的后续加载操作
public class RegionConfig {

    @Bean
    @ConditionalOnMissingBean
    public EurekaServerConfig eurekaServerConfig(EurekaClientConfig clientConfig) {
        EurekaServerConfigBean server = new EurekaServerConfigBean();
        if (clientConfig.shouldRegisterWithEureka()) {
            server.setRegistrySyncRetries(5);
        }
        server.setRemoteRegionAppWhitelist(new HashMap<>());
        return server;
    }
}

mvn spring-boot:run -Dspring.profiles.active=zone1
mvn spring-boot:run -Dspring.profiles.active=zone2
mvn spring-boot:run -Dspring.profiles.active=zone3-region-west
mvn spring-boot:run -Dspring.profiles.active=zone4-region-west