Java操作Istio虚服务VirtualService

Java操作Istio虚服务VirtualService

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_Code()).list().getItems();for ( VirtualService virtualService : virtualServices) {log.info("virtualService={}", JSONString(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: 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.questException(OperationSupport.java:697)at io.fabric8.kubernetes.client.dsl.questException(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 Stop.service.VsList(IstioVsServiceImpl.java:47)st1(IstioVsServiceTest.java:25)flect.NativeMethodAccessorImpl.invoke0(Native Method)flect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)flect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at flect.Method.invoke(Method.java:498)at org.del.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)at org.junit.del.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.del.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at st.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)at st.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)at st.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)at st.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)at st.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)at st.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)at st.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 st.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)at st.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.ParentRunner.run(ParentRunner.java:413)at st.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at junit.IdeaTestRunner$ute(IdeaTestRunner.java:38)at cution.peat(TestsRepeater.java:11)at junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)at junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)at junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: java.lang.EnumConstantNotPresentException: com.fasterxml.jackson.annotation.JsonTypeInfo$Id.flect.ateException(EnumConstantNotPresentExceptionProxy.java:46)flect.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.solveMemberAndTypeAnnotations(BasicDeserializerFactory.java:2186)at com.fasterxml.jackson.databind.structSettableProperty(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.ateBeanDeserializer(BeanDeserializerFactory.java:143)at io.del.jackson.JsonUnwrappedDeserializer.<init>(JsonUnwrappedDeserializer.java:105)at io.del.ateContextual(JsonUnwrappedDeserializer.java:112)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.solve(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.solve(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.ateContextual(CollectionDeserializer.java:181)at com.fasterxml.jackson.databind.deser.ateContextual(CollectionDeserializer.java:26)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.solve(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.solve(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.ateContextual(CollectionDeserializer.java:181)at com.fasterxml.jackson.databind.deser.ateContextual(CollectionDeserializer.java:26)at com.fasterxml.jackson.databind.DeserializationContext.handlePrimaryContextualization(DeserializationContext.java:665)at com.fasterxml.jackson.databind.solve(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.adValue(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。

为何是这样呢？

通过 mvn dependency:tree 命令查看下依赖树如下：

可以看到 com.fasterxml.jackson 先是通过 spring-boot-starter-web 自动加载了，从而导致了io.fabric8 对应的 com.fasterxml.jackson 版本错误。

解决方案：

升级spring-boot版本为 2.6.0 最终问题解决。