一.啟動Eureka Server集群

準備三臺雲主機，分別開啟三個Eureka服務，三個服務二二進行復制。可以準備三個application.yml配置，分別如下：

application-server1.yml

server:
  port: 8761

eureka:
  instance:
    hostname: eurekaServer1
    appname: eurekaServer1
  client:
    registerWithEureka: true
    fetchRegistry: true
    serviceUrl:
      defaultZone: http://eurekaServer2
 
:${server.port}/eureka/

application-server2.yml

server:
  port: 8761

eureka:
  instance:
    hostname: eurekaServer2
    appname: eurekaServer2
  client:
    registerWithEureka: true
    fetchRegistry: true
    serviceUrl:
      defaultZone: http://eurekaServer3:${server.port}/eureka/

application-server3.yml

server:
  port: 8761

eureka:
  instance:
    hostname: eurekaServer3
    appname: eurekaServer3
  client:
    registerWithEureka: true
    fetchRegistry: true
    serviceUrl:
      defaultZone: http://eurekaServer1:${server.port}/eureka/

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