Expected Behavior
According to the Spring Cloud Kubernetes documentation, all that is necessary for a Spring application to detect when it's running in a pod is to add Spring Cloud Kubernetes to the classpath with the spring-cloud-kubernetes-all dependency.
This triggers two events:
application-kubernetes.yml profile is loaded.DiscoveryClient is used for service discovery, leveraging KubeDNS instead of the default of Eureka.This environment awareness is described here: https://cloud.spring.io/spring-cloud-static/spring-cloud-kubernetes/1.1.0.RELEASE/reference/html/#kubernetes-profile-autoconfiguration
and here:
Actual Behavior
After booting the Spring Cloud Kubernetes application using the following yaml and accessing it's actuator endpoint at http://minikube-ip:port/actuator/env via a NodePort, I see there are no active profiles set, even though a application-kubernetes.yml exists in the resources folder:
{
"activeProfiles": [],
...
Upon further investigation in the http://minikube-ip:port/actuator/info endpoint, I see that the Spring application isn't aware it's in a pod at all, as evidenced by:
{
"kubernetes": {
"inside": false
}
}
My Code
SpringCloudGateway
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
@EnableDiscoveryClient
public class Gateway {
public static void main(String[] args) {
SpringApplication.run(Gateway.class, args);
}
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p.path("/captcha").filters(f -> f.stripPrefix(1)).uri("lb://captcha").id("captcha"))
.build();
}
}
SpringCloudGateway build.gradle
plugins {
id 'java'
id 'org.springframework.boot' version '2.2.6.RELEASE'
id 'io.spring.dependency-management' version '1.0.10.RELEASE'
id 'idea'
id 'eclipse'
id 'com.google.cloud.tools.jib' version '1.6.1'
id 'com.diffplug.gradle.spotless' version '4.5.1'
}
ext {
springCloudVersion = 'Hoxton.SR5'
}
java {
sourceCompatibility = JavaVersion.VERSION_11
targetCompatibility = JavaVersion.VERSION_11
}
dependencies {
implementation "org.springframework.cloud:spring-cloud-starter-netflix-eureka-client"
implementation "org.springframework.cloud:spring-cloud-starter-gateway"
implementation 'org.springframework.cloud:spring-cloud-starter-kubernetes-all'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
testImplementation "org.springframework.boot:spring-boot-starter-test"
testImplementation "org.springframework.cloud:spring-cloud-starter-netflix-eureka-server"
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:$springCloudVersion"
}
}
SpringCloudGateway application.yml
server:
port: 8760
spring:
application:
name: gateway
cloud:
kubernetes:
enabled: false
eureka:
client:
enabled: true
registerWithEureka: true
serviceUrl:
defaultZone: ${EUREKA_SERVER:http://localhost:8761/eureka}
management:
endpoints:
web:
exposure:
include: "*"
SpringCloudGateway application-kubernetes.yml
spring:
cloud:
kubernetes:
enabled: true
eureka:
client:
enabled: false
SpringCloudGateway deployment.yml
apiVersion: apps/v1
kind: Deployment
metadata:
creationTimestamp: null
generation: 1
labels:
run: gateway
name: gateway
spec:
replicas: 2
revisionHistoryLimit: 2
selector:
matchLabels:
run: gateway
strategy:
rollingUpdate:
maxSurge: 25%
maxUnavailable: 25%
type: RollingUpdate
template:
metadata:
creationTimestamp: null
labels:
run: gateway
spec:
hostname: gateway
containers:
- image: gateway-image
imagePullPolicy: Never
name: gateway
ports:
- containerPort: 8760
protocol: TCP
Logs of the SpringCloudGateway pod
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.6.RELEASE)
2020-12-06 17:15:11.468 INFO 1 --- [ main] b.c.PropertySourceBootstrapConfiguration : Located property source: [BootstrapPropertySource {name='bootstrapProperties-configmap.gateway.default'}]
2020-12-06 17:15:11.507 INFO 1 --- [ main] com.example.gateway.Gateway : No active profile set, falling back to default profiles: default
2020-12-06 17:15:17.627 WARN 1 --- [ main] o.s.boot.actuate.endpoint.EndpointId : Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
2020-12-06 17:15:18.358 INFO 1 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=2ddf218c-a309-33c9-a6e4-7f9ba9a5c5f9
2020-12-06 17:15:19.199 INFO 1 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.client.loadbalancer.reactive.LoadBalancerBeanPostProcessorAutoConfiguration' of type [org.springframework.cloud.client.loadbalancer.reactive.LoadBalancerBeanPostProcessorAutoConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-12-06 17:15:19.212 INFO 1 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.client.loadbalancer.reactive.LoadBalancerBeanPostProcessorAutoConfiguration$ReactiveLoadBalancerConfig' of type [org.springframework.cloud.client.loadbalancer.reactive.LoadBalancerBeanPostProcessorAutoConfiguration$ReactiveLoadBalancerConfig] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-12-06 17:15:19.217 INFO 1 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'deferringLoadBalancerExchangeFilterFunction' of type [org.springframework.cloud.client.loadbalancer.reactive.DeferringLoadBalancerExchangeFilterFunction] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-12-06 17:15:20.700 WARN 1 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-12-06 17:15:20.700 INFO 1 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2020-12-06 17:15:20.722 WARN 1 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-12-06 17:15:20.722 INFO 1 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2020-12-06 17:15:28.046 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [After]
2020-12-06 17:15:28.046 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Before]
2020-12-06 17:15:28.047 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Between]
2020-12-06 17:15:28.047 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Cookie]
2020-12-06 17:15:28.047 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Header]
2020-12-06 17:15:28.047 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Host]
2020-12-06 17:15:28.048 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Method]
2020-12-06 17:15:28.048 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Path]
2020-12-06 17:15:28.048 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Query]
2020-12-06 17:15:28.048 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [ReadBodyPredicateFactory]
2020-12-06 17:15:28.049 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [RemoteAddr]
2020-12-06 17:15:28.049 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Weight]
2020-12-06 17:15:28.049 INFO 1 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [CloudFoundryRouteService]
2020-12-06 17:15:29.685 INFO 1 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 18 endpoint(s) beneath base path '/actuator'
2020-12-06 17:15:30.893 WARN 1 --- [ main] ockingLoadBalancerClientRibbonWarnLogger : You already have RibbonLoadBalancerClient on your classpath. It will be used by default. As Spring Cloud Ribbon is in maintenance mode. We recommend switching to BlockingLoadBalancerClient instead. In order to use it, set the value of `spring.cloud.loadbalancer.ribbon.enabled` to `false` or remove spring-cloud-starter-netflix-ribbon from your project.
2020-12-06 17:15:30.974 WARN 1 --- [ main] eactorLoadBalancerClientRibbonWarnLogger : You have RibbonLoadBalancerClient on your classpath. LoadBalancerExchangeFilterFunction that uses it under the hood will be used by default. Spring Cloud Ribbon is now in maintenance mode, so we suggest switching to ReactorLoadBalancerExchangeFilterFunction instead. In order to use it, set the value of `spring.cloud.loadbalancer.ribbon.enabled` to `false` or remove spring-cloud-starter-netflix-ribbon from your project.
2020-12-06 17:15:31.303 INFO 1 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2020-12-06 17:15:31.981 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2020-12-06 17:15:32.390 INFO 1 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2020-12-06 17:15:32.390 INFO 1 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/app/libs/xstream-1.4.11.1.jar) to field java.util.TreeMap.comparator
WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fields
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-12-06 17:15:33.180 INFO 1 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2020-12-06 17:15:33.181 INFO 1 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2020-12-06 17:15:34.185 INFO 1 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2020-12-06 17:15:34.253 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2020-12-06 17:15:34.253 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2020-12-06 17:15:34.258 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2020-12-06 17:15:34.263 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2020-12-06 17:15:34.264 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2020-12-06 17:15:34.266 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2020-12-06 17:15:34.266 INFO 1 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2020-12-06 17:15:34.735 ERROR 1 --- [ main] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:8761/eureka/}
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused (Connection refused)
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:123) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.9.21.jar:1.9.21]
at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar:1.19.1]
at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:509) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplicationsInternal(AbstractJerseyEurekaHttpClient.java:196) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplications(AbstractJerseyEurekaHttpClient.java:167) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:120) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1081) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:995) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:438) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:282) ~[eureka-client-1.9.21.jar:1.9.21]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:278) ~[eureka-client-1.9.21.jar:1.9.21]
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.java:67) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:316) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:359) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389) ~[spring-cloud-context-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186) ~[spring-cloud-context-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getTargetObject(EurekaRegistration.java:129) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getEurekaClient(EurekaRegistration.java:117) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:499) ~[spring-cloud-context-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration$$EnhancerBySpringCGLIB$$e39a6809.getEurekaClient(<generated>) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:57) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:38) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:83) ~[spring-cloud-netflix-eureka-client-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:894) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.finishRefresh(ReactiveWebServerApplicationContext.java:129) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:66) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at com.example.gateway.Gateway.main(Gateway.java:17) ~[classes/:na]
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) ~[na:na]
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403) ~[na:na]
at java.base/java.net.Socket.connect(Socket.java:591) ~[na:na]
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:605) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:440) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.12.jar:4.5.12]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.12.jar:4.5.12]
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
... 75 common frames omitted
2020-12-06 17:15:34.738 WARN 1 --- [ main] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: java.net.ConnectException: Connection refused (Connection refused)
2020-12-06 17:15:34.748 ERROR 1 --- [ main] com.netflix.discovery.DiscoveryClient : DiscoveryClient_GATEWAY/gateway:gateway:8760 - was unable to refresh its cache! status = Cannot execute request on any known server
As you can see, it's still trying to connect to Eureka.
Versions Spring Cloud: Hoxton.SR5
Jib
Minikube: 1.15.1
K8s: 1.19
Java: 11
Any help would be greatly appreciated! Thank you!
Here is the application.yml, application-kubernetes.yml, and build.gradle combo that finally worked for me:
build.gradle
dependencies {
implementation "org.springframework.boot:spring-boot-starter-webflux"
implementation "org.springframework.boot:spring-boot-starter-security"
implementation "org.springframework.security:spring-security-oauth2-client"
implementation "org.springframework.cloud:spring-cloud-starter-gateway"
implementation "org.springframework.cloud:spring-cloud-starter-netflix-eureka-client"
implementation "org.springframework.cloud:spring-cloud-starter-gateway"
implementation "org.springframework.cloud:spring-cloud-starter-kubernetes-all"
implementation 'org.springframework.boot:spring-boot-starter-actuator'
testImplementation "org.springframework.boot:spring-boot-starter-test"
testImplementation "org.springframework.cloud:spring-cloud-starter-netflix-eureka-server"
}
application.yml
server:
port: 8080
spring:
application:
name: gateway
cloud:
kubernetes:
loadbalancer:
enabled: false
enabled: false
gateway:
routes:
- predicates:
- Path=/**
id: r-core
uri: lb://r-core
eureka:
client:
registerWithEureka: true
serviceUrl:
defaultZone: ${EUREKA_SERVER:http://localhost:8761/eureka}
management:
endpoints:
web:
exposure:
include:
- mappings
- env
- health
- info
application-kubernetes.yml
spring:
cloud:
loadbalancer:
ribbon:
enabled: false
discovery:
locator:
enabled: true
kubernetes:
loadbalancer:
enabled: true
enabled: true
eureka:
client:
enabled: false