hanlubiao

**Describe the bug** start fail in spring cloud gateway with elasticsearch ExceptionStackTrace: Caused by: java.lang.IllegalStateException: null at java.util.Optional.orElseThrow(Optional.java:290) at org.springframework.cloud.kubernetes.discovery.KubernetesDiscoveryClient.findEndpointPort(KubernetesDiscoveryClient.java:189) at org.springframework.cloud.kubernetes.discovery.KubernetesDiscoveryClient.getInstances(KubernetesDiscoveryClient.java:157) at org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient.getInstances(CompositeDiscoveryClient.java:53) at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.tryOnNext(FluxMapFuseable.java:301) at reactor.core.publisher.FluxIterable$IterableSubscriptionConditional.slowPath(FluxIterable.java:515) Reason: When...