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1.问题描述
程序以前使用的k8s版本是1.16#xff0c;fabric8.kubernetes-client的版本是4.10.2#xff0c;springboot版本是2.3.5。由于环境切换#xff0c;这次需要升级k8s的版本#xff0c;现在将k8s版本升级到…SpringBoot集成kubernetes-client升级k8s后初始化失败问题
1.问题描述
程序以前使用的k8s版本是1.16fabric8.kubernetes-client的版本是4.10.2springboot版本是2.3.5。由于环境切换这次需要升级k8s的版本现在将k8s版本升级到了1.26程序中使用了新配置的certificate-authority-dataclient-certificate-data等。程序中原本初始化写法如下
config new ConfigBuilder().withMasterUrl(server).withCaCertData(certificateAuthorityData).withClientCertData(clientCertificateData).withClientKeyData(clientKeyData).build();
LogUtil.info(LogEnum.BIZ_K8S, config信息为{}, JSON.toJSONString(config));
client new DefaultKubernetesClient(config);但是程序启动缺出现了问题问题如下
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.dubhe.k8s.utils.K8sUtils]: Factory method k8sUtils threw exception; nested exception is io.fabric8.kubernetes.client.KubernetesClientException: An error has occurred.at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]... 61 common frames omitted
Caused by: io.fabric8.kubernetes.client.KubernetesClientException: An error has occurred.at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:64) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:53) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.utils.HttpClientUtils.createHttpClient(HttpClientUtils.java:234) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.utils.HttpClientUtils.createHttpClient(HttpClientUtils.java:63) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.BaseClient.init(BaseClient.java:51) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.DefaultKubernetesClient.init(DefaultKubernetesClient.java:133) ~[kubernetes-client-4.10.2.jar:na]at org.dubhe.k8s.utils.K8sUtils.init(K8sUtils.java:93) ~[classes/:na]at org.dubhe.k8s.config.K8sConfig.k8sUtils(K8sConfig.java:91) ~[classes/:na]at org.dubhe.k8s.config.K8sConfig$$EnhancerBySpringCGLIB$$77270501.CGLIB$k8sUtils$10(generated) ~[classes/:na]at org.dubhe.k8s.config.K8sConfig$$EnhancerBySpringCGLIB$$77270501$$FastClassBySpringCGLIB$$1f42aed6.invoke(generated) ~[classes/:na]at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.10.RELEASE.jar:5.2.10.RELEASE]at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.2.10.RELEASE.jar:5.2.10.RELEASE]at org.dubhe.k8s.config.K8sConfig$$EnhancerBySpringCGLIB$$77270501.k8sUtils(generated) ~[classes/:na]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_321]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_321]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_321]at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_321]at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]... 62 common frames omitted
Caused by: java.io.IOException: Invalid DER: object is not integerat io.fabric8.kubernetes.client.internal.PKCS1Util$Asn1Object.getInteger(PKCS1Util.java:125) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.PKCS1Util.next(PKCS1Util.java:55) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.PKCS1Util.decodePKCS1(PKCS1Util.java:46) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.CertUtils.handleOtherKeys(CertUtils.java:175) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.CertUtils.loadKey(CertUtils.java:135) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.CertUtils.createKeyStore(CertUtils.java:113) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.CertUtils.createKeyStore(CertUtils.java:245) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.SSLUtils.keyManagers(SSLUtils.java:128) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.internal.SSLUtils.keyManagers(SSLUtils.java:122) ~[kubernetes-client-4.10.2.jar:na]at io.fabric8.kubernetes.client.utils.HttpClientUtils.createHttpClient(HttpClientUtils.java:120) ~[kubernetes-client-4.10.2.jar:na]... 77 common frames omitted2.问题分析
然后就上网去查找资料但是搜索了很多都没有找到有用的信息。只好自己一点点debug去查看源代码。debug的时候看到build的时候会先去读配置文件这让我想到了之前做的一个项目那个项目使用的是io.kubernetes client-java这个依赖包。我再开发的时候会将config文件放在系统路径下。又换了一种创建方式
Config config new ConfigBuilder().build();于是按照这种方式也将config放在相应的路径下程序果然可以去建立连接自测创建pod也是成功的。
由于一个读取的是配置文件一个读取的是配置在nacos配置中心的配置两个的配置信息毫无差别但是执行结果就是不一样。然后再去debug去看两中配置问题到底有何不一样。最后发现Config中的clientKeyAlgo中赋值不同读取nacos中的配置产生的算法是RSA读取config配置文件产生的是EC。
然后我将系统路径下的config文件移除将原本程序改为
Config config new ConfigBuilder().withMasterUrl(server) .withCaCertData(certificateAuthorityData) .withClientCertData(clientCertificateData) .withClientKeyData(clientKeyData) .withClientKeyAlgo(EC) .build();发现也成功了。由于时间关系就没有仔细去看为什么读取nacos中的配置产生的是RSA读取config配置文件产生的是EC。
3.解决办法
最终解决方案是
1.在程序启动的包设置config环境变量让程序读取config文件设置了config文件后就可以用Config config new ConfigBuilder().build();这种方式创建。
2.依然去读取nacos中的配置certificate-authority-dataclient-certificate-data在程序Builder时手动设置ClientKeyAlgo。
