add comment for eureka.client.serviceUrl

apollo-adminservice/src/main/resources/bootstrap.yml

@@ -6,6 +6,8 @@ eureka:
     health-check-url-path: /health
   client:
     serviceUrl:
+      # This setting will be overridden by eureka.service.url setting from ApolloConfigDB.ServerConfig or System Property
+      # see com.ctrip.framework.apollo.biz.eureka.ApolloEurekaClientConfig
       defaultZone: http://${eureka.instance.hostname}:8080/eureka/
     healthcheck:
       enabled: true

apollo-configservice/src/main/resources/bootstrap.yml

@@ -9,6 +9,8 @@ eureka:
     enableSelfPreservation: false
   client:
     serviceUrl:
+      # This setting will be overridden by eureka.service.url setting from ApolloConfigDB.ServerConfig or System Property
+      # see com.ctrip.framework.apollo.biz.eureka.ApolloEurekaClientConfig
       defaultZone: http://${eureka.instance.hostname}:8080/eureka/
     healthcheck:
       enabled: true