spring云流绑定器kafka无法创建带有ssl配置的多个kafka绑定程序。

Question

我正试图通过具有jaas的SASL_SSL协议连接到一个kafka集群，如下所示：

spring:
  cloud:
    stream:
      bindings:
        binding-1:
          binder: kafka-1-with-ssl
          destination: <destination-1>
          content-type: text/plain
          group: <group-id-1>
          consumer:
            header-mode: headers
        binding-2:
          binder: kafka-2-with-ssl
          destination: <destination-2>
          content-type: text/plain
          group: <group-id-2>
          consumer:
            header-mode: headers
            

      binders:
        kafka-1-with-ssl:
          type: kafka
          defaultCandidate: false
          environment:
            spring:
              cloud:
                stream:
                  kafka:
                    binder: 
                      brokers: <broker-hostnames-1>
                      configuration:
                        ssl:
                          truststore:
                            location: <location-1>
                            password: <ts-password-1>
                            type: JKS
                      jaas:
                        loginModule: org.apache.kafka.common.security.scram.ScramLoginModule
                        options:
                          username: <username-1>
                          password: <password-1>

        kafka-2-with-ssl:
          type: kafka
          defaultCandidate: false
          environment:
            spring:
              cloud:
                stream:
                  kafka:
                    binder: 
                      brokers: <broker-hostnames-2>
                      configuration:
                        ssl:
                          truststore:
                            location: <location-2>
                            password: <ts-password-2>
                            type: JKS
                      jaas:
                        loginModule: org.apache.kafka.common.security.scram.ScramLoginModule
                        options:
                          username: <username-2>
                          password: <password-2>
      kafka:
        binder:
          configuration:
            security:
              protocol: SASL_SSL
            sasl:
              mechanism: SCRAM-SHA-256 

上面的配置与在样例配置上可用的春云流的官方git回购是一致的。

图书馆的git回购也提出了类似的问题说它在最新版本中是固定的，但看起来并非如此。获取以下错误：

springBootVersion: 2.2.8和spring云流依赖版本- Horsham.SR6。

Failed to create consumer binding; retrying in 30 seconds | org.springframework.cloud.stream.binder.BinderException: Exception thrown while starting consumer: 
    at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:461)
    at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:90)
    at org.springframework.cloud.stream.binder.AbstractBinder.bindConsumer(AbstractBinder.java:143)
    at org.springframework.cloud.stream.binding.BindingService.lambda$rescheduleConsumerBinding$1(BindingService.java:201)
    at org.springframework.cloud.sleuth.instrument.async.TraceRunnable.run(TraceRunnable.java:68)
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kafka.common.KafkaException: Failed to create new KafkaAdminClient
    at org.apache.kafka.clients.admin.KafkaAdminClient.createInternal(KafkaAdminClient.java:407)
    at org.apache.kafka.clients.admin.AdminClient.create(AdminClient.java:65)
    at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.createAdminClient(KafkaTopicProvisioner.java:246)
    at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.doProvisionConsumerDestination(KafkaTopicProvisioner.java:216)
    at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.provisionConsumerDestination(KafkaTopicProvisioner.java:183)
    at org.springframework.cloud.stream.binder.kafka.provisioning.KafkaTopicProvisioner.provisionConsumerDestination(KafkaTopicProvisioner.java:79)
    at org.springframework.cloud.stream.binder.AbstractMessageChannelBinder.doBindConsumer(AbstractMessageChannelBinder.java:402)
    ... 12 common frames omitted
Caused by: org.apache.kafka.common.KafkaException: javax.security.auth.login.LoginException: KrbException: Cannot locate default realm
    at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:160)
    at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:146)
    at org.apache.kafka.common.network.ChannelBuilders.clientChannelBuilder(ChannelBuilders.java:67)
    at org.apache.kafka.clients.ClientUtils.createChannelBuilder(ClientUtils.java:99)
    at org.apache.kafka.clients.admin.KafkaAdminClient.createInternal(KafkaAdminClient.java:382)
    ... 18 common frames omitted
Caused by: javax.security.auth.login.LoginException: KrbException: Cannot locate default realm
    at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:804)
    at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:617)
    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 javax.security.auth.login.LoginContext.invoke(LoginContext.java:755)
    at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195)
    at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682)
    at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
    at javax.security.auth.login.LoginContext.login(LoginContext.java:587)
    at org.apache.kafka.common.security.authenticator.AbstractLogin.login(AbstractLogin.java:60)
    at org.apache.kafka.common.security.authenticator.LoginManager.<init>(LoginManager.java:61)
    at org.apache.kafka.common.security.authenticator.LoginManager.acquireLoginManager(LoginManager.java:111)
    at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:149)
    ... 22 common frames omitted
Caused by: sun.security.krb5.RealmException: KrbException: Cannot locate default realm
    at sun.security.krb5.Realm.getDefault(Realm.java:68)
    at sun.security.krb5.PrincipalName.<init>(PrincipalName.java:462)
    at sun.security.krb5.PrincipalName.<init>(PrincipalName.java:471)
    at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:706)
    ... 38 common frames omitted
Caused by: sun.security.krb5.KrbException: Cannot locate default realm
    at sun.security.krb5.Config.getDefaultRealm(Config.java:1029)
    at sun.security.krb5.Realm.getDefault(Realm.java:64)
    ... 41 common frames omitted 

这使我认为库没有正确地选择配置支持，因为jaas.loginModule被指定为ScramLoginModule，但它使用Krb5LoginModule进行身份验证。

但是，很明显，当配置完成如下时(区别在于绑定器环境之外的ssl凭据)，它连接到在全局ssl支持(在绑定器的env之外)中指定的绑定器，并在不显示任何错误日志的情况下无声地忽略其他绑定器。

如果在全局ssl中指定了绑定器kafka-2-with-ssl的密码凭据，则创建绑定程序，并且订阅该绑定程序的绑定开始消耗事件。但是，只有当我们需要创建单一的绑定器时，这才是有用的。

spring:
  cloud:
    stream:
      bindings:
        binding-1:
          binder: kafka-1-with-ssl
          destination: <destination-1>
          content-type: text/plain
          group: <group-id-1>
          consumer:
            header-mode: headers
        binding-2:
          binder: kafka-2-with-ssl
          destination: <destination-2>
          content-type: text/plain
          group: <group-id-2>
          consumer:
            header-mode: headers
            

      binders:
        kafka-1-with-ssl:
          type: kafka
          defaultCandidate: false
          environment:
            spring:
              cloud:
                stream:
                  kafka:
                    binder: 
                      brokers: <broker-hostnames-1>
                      configuration:
                        ssl:
                          truststore:
                            location: <location-1>
                            password: <ts-password-1>
                            type: JKS
                      jaas:
                        loginModule: org.apache.kafka.common.security.scram.ScramLoginModule
                        options:
                          username: <username-1>
                          password: <password-1>

        kafka-2-with-ssl:
          type: kafka
          defaultCandidate: false
          environment:
            spring:
              cloud:
                stream:
                  kafka:
                    binder: 
                      brokers: <broker-hostnames-2>
                      configuration:
                        ssl:
                          truststore:
                            location: <location-2>
                            password: <ts-password-2>
                            type: JKS
                      jaas:
                        loginModule: org.apache.kafka.common.security.scram.ScramLoginModule
                        options:
                          username: <username-2>
                          password: <password-2>
      kafka:
        binder:
          configuration:
            security:
              protocol: SASL_SSL
            sasl:
              mechanism: SCRAM-SHA-256 
            ssl:
              truststore:
                location: <location-2>
                password: <ts-password-2> 
                type: JKS
          jaas:
            loginModule: org.apache.kafka.common.security.scram.ScramLoginModule
             options:
               username: <username-2>
               password: <password-2> 

向您保证ssl凭据没有任何问题。努力测试的任何一个ssl卡夫卡-粘合剂成功地被单独创建。目的是用SASL_SSL协议连接多个卡夫卡绑定器。提前谢谢。

Answer 1

我认为您可能希望遵循在基普-85中实现的解决方案来解决这个问题。与其使用Stream绑定器提供的JAAS配置或设置java.security.auth.login.config属性，不如使用优先于其他方法的sasl.jaas.config属性。通过使用sasl.jaas.config，您可以覆盖JVM放置的限制，在该限制中使用JVM范围的静态安全上下文，从而忽略了在第一个配置之后找到的任何后续JAAS配置。

下面是一个样本应用，演示了如何将具有不同安全上下文的多个Kafka集群连接为多绑定应用程序。