update eureka config first bootstrap for service registry

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaDiscoveryClientConfigServiceBootstrapConfiguration.java

@@ -20,6 +20,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.config.client.ConfigServicePropertySourceLocator;
 import org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration;
+import org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 
@@ -32,6 +33,7 @@ import org.springframework.context.annotation.Import;
 @ConditionalOnClass(ConfigServicePropertySourceLocator.class)
 @ConditionalOnProperty(value = "spring.cloud.config.discovery.enabled", matchIfMissing = false)
 @Configuration
-@Import({ EurekaClientAutoConfiguration.class })
+@Import({ EurekaDiscoveryClientConfiguration.class, // this emulates @EnableDiscoveryClient, the import selector doesn't run before the bootstrap phase
+		EurekaClientAutoConfiguration.class })
 public class EurekaDiscoveryClientConfigServiceBootstrapConfiguration {
 }