Feat: Discovery Server 등록

Author: Feedbaek

DiscoveryServer/src/main/resources/application.yml

@@ -12,3 +12,6 @@ eureka:
       defaultZone: ${EUREKA_SERVER_URL:http://localhost:8761/eureka/}
     register-with-eureka: false
     fetch-registry: false
+  instance:
+    prefer-ip-address: true
+    instance-id: ${spring.application.name}:${server.port}