Java操作Istio虚服务VirtualService

本文主要是介绍Java操作Istio虚服务VirtualService，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

部署路由策略，通过java操作Istio设置访问流量管理。

首先引入k8s插件及Istio插件

 <dependency><groupId>io.fabric8</groupId><artifactId>kubernetes-client</artifactId><version>5.11.0</version></dependency><dependency><groupId>io.fabric8</groupId><artifactId>istio-client</artifactId><version>5.11.0</version></dependency>

Istio组件配置代码，使用 fabric8

@Configuration
public class ApiClientConfig {@Value("${k8s.apiServer.baseUrl}")private String baseUrl;@Value("${k8s.apiServer.oauthToken}")private String oauthToken;@BeanIstioClient istioClient() {return  new DefaultIstioClient(new ConfigBuilder().withMasterUrl(baseUrl).withTrustCerts(true).withOauthToken(oauthToken).build());}
}

查询虚服务列表测试

@Service
@Slf4j
public class IstioVsServiceImpl implements IstioVsService {@Autowiredprivate   IstioClient istioClient;@Overridepublic void getVsList() {List<VirtualService>  virtualServices = istioClient.v1beta1().virtualServices().inNamespace(NameSpaceEnum.FK_NO_STOP.getCode()).list().getItems();for ( VirtualService virtualService : virtualServices) {log.info("virtualService={}", JSON.toJSONString(virtualService));}}
}

进行单元测试

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = NonStopApp.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class IstioVsServiceTest {@Autowiredprivate IstioVsService istioVsService;@Testpublic void test1() {DeployConfigDTO deployConfigDTO = new DeployConfigDTO();deployConfigDTO.setRadio("0.3");deployConfigDTO.setId(3);istioVsService.applyVsConfig(deployConfigDTO);}}

结果莫名其妙报错了：

com.fasterxml.jackson.annotation.JsonTypeInfo$Id.DEDUCTION

io.fabric8.kubernetes.client.KubernetesClientException:Error executing: GET at: https://xxxxx:9443/k8s/clusters/c-7tg2p/apis/
networking.istio.io/v1beta1/namespaces/nostopdemo/virtualservices.Cause: com.fasterxml.jackson.annotation.JsonTypeInfo$Id.DEDUCTIOat io.fabric8.kubernetes.client.dsl.base.OperationSupport.requestException(OperationSupport.java:697)at io.fabric8.kubernetes.client.dsl.base.OperationSupport.requestException(OperationSupport.java:701)at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:566)at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:519)at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:503)at io.fabric8.kubernetes.client.dsl.base.BaseOperation.listRequestHelper(BaseOperation.java:131)at io.fabric8.kubernetes.client.dsl.base.BaseOperation.list(BaseOperation.java:413)at io.fabric8.kubernetes.client.dsl.base.BaseOperation.list(BaseOperation.java:402)at io.fabric8.kubernetes.client.dsl.base.BaseOperation.list(BaseOperation.java:83)at com.fusionfintrade.nonStop.service.impl.IstioVsServiceImpl.getVsList(IstioVsServiceImpl.java:47)at com.test.IstioVsServiceTest.test1(IstioVsServiceTest.java:25)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.ParentRunner.run(ParentRunner.java:413)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: java.lang.EnumConstantNotPresentException: com.fasterxml.jackson.annotation.JsonTypeInfo$Id.DEDUCTIONat sun.reflect.annotation.EnumConstantNotPresentExceptionProxy.generateException(EnumConstantNotPresentExceptionProxy.java:46)at sun.reflect.annotation.AnnotationInvocationHandler.invoke(AnnotationInvocationHandler.java:84)at com.sun.proxy.$Proxy129.use(Unknown Source)at com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector._findTypeResolver(JacksonAnnotationIntrospector.java:1469)at com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector.findTypeResolver(JacksonAnnotationIntrospector.java:555)at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findTypeDeserializer(BasicDeserializerFactory.java:1586)at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findPropertyTypeDeserializer(BasicDeserializerFactory.java:1818)at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.resolveMemberAndTypeAnnotations(BasicDeserializerFactory.java:2186)at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.constructSettableProperty(BeanDeserializerFactory.java:799)at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.addBeanProps(BeanDeserializerFactory.java:522)at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:234)at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:143)at io.fabric8.kubernetes.model.jackson.JsonUnwrappedDeserializer.<init>(JsonUnwrappedDeserializer.java:105)at io.fabric8.kubernetes.model.jackson.JsonUnwrappedDeserializer.createContextual(JsonUnwrappedDeserializer.java:112)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:508)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:481)at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:497)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)at com.fasterxml.jackson.databind.DeserializationContext.findContextualValueDeserializer(DeserializationContext.java:458)at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:181)at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:26)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:508)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:481)at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:497)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)at com.fasterxml.jackson.databind.DeserializationContext.findContextualValueDeserializer(DeserializationContext.java:458)at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:181)at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:26)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:508)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:491)at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:4713)at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4522)at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3513)at io.fabric8.kubernetes.client.utils.Serialization.unmarshal(Serialization.java:312)at io.fabric8.kubernetes.client.utils.Serialization.unmarshal(Serialization.java:266)at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:558)... 41 more

初步分析，是依赖版本冲突的问题，因而看了下官网 io.fabric8 版本 5.11.0 相关com.fasterxml.jackson.databind

依赖版本是 2.13

但是实际依赖版本查看却是 2.11.3 如下所示。