我正在为 AWS Kinesis 部署一个带有 spring-cloud-stream 和 binder 的 springboot 应用程序。如果 beanstalk 配置了公有 IP，则在 aws 弹性 beanstalk 上部署应用程序时工作正常。当我们使用私有 IP 设置 bearcat 时，应用程序会在部署时引发警告，因为无法从 aws 获取一些元数据。
为什么要尝试获得这些复苏？有一些解决方法可以删除此警告？
这些是在部署应用程序且未在 ec2 上设置公有 IP 时引发的警告。
com.amazonaws.util.EC2MetadataUtils : Unable to retrieve the requested metadata (/latest/meta-data/public-ipv4). The requested metadata is not found at http://169.254.169.254/latest/meta-data/public-ipv4
com.amazonaws.SdkClientException: The requested metadata is not found at http://169.254.169.254/latest/meta-data/public-ipv4
at com.amazonaws.internal.EC2CredentialsUtils.readResource(EC2CredentialsUtils.java:122)
at com.amazonaws.internal.EC2CredentialsUtils.readResource(EC2CredentialsUtils.java:82)
at com.amazonaws.util.EC2MetadataUtils.getItems(EC2MetadataUtils.java:400)
at com.amazonaws.util.EC2MetadataUtils.getData(EC2MetadataUtils.java:369)
at com.amazonaws.util.EC2MetadataUtils.getData(EC2MetadataUtils.java:365)
at org.springframework.cloud.aws.core.env.ec2.AmazonEc2InstanceDataPropertySource.getProperty(AmazonEc2InstanceDataPropertySource.java:89)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.collectEncryptedProperties(EnvironmentDecryptApplicationInitializer.java:199)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.decrypt(EnvironmentDecryptApplicationInitializer.java:166)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.initialize(EnvironmentDecryptApplicationInitializer.java:96)
at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:649)
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:373)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:139)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.getBinderInstance(DefaultBinderFactory.java:250)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.doGetBinder(DefaultBinderFactory.java:174)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.getBinder(DefaultBinderFactory.java:120)
at org.springframework.cloud.stream.binding.BindingService.getBinder(BindingService.java:313)
at org.springframework.cloud.stream.binding.BindingService.bindProducer(BindingService.java:214)
at org.springframework.cloud.stream.binding.BindableProxyFactory.createAndBindOutputs(BindableProxyFactory.java:262)
at org.springframework.cloud.stream.binding.OutputBindingLifecycle.doStartWithBindable(OutputBindingLifecycle.java:55)
at java.util.LinkedHashMap$LinkedValues.forEach(LinkedHashMap.java:608)
at org.springframework.cloud.stream.binding.AbstractBindingLifecycle.start(AbstractBindingLifecycle.java:47)
at org.springframework.cloud.stream.binding.OutputBindingLifecycle.start(OutputBindingLifecycle.java:34)
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53)
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158)
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:893)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:163)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5225)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1135)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1869)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
com.amazonaws.util.EC2MetadataUtils : Unable to retrieve the requested metadata (/latest/meta-data/public-hostname). The requested metadata is not found at http://169.254.169.254/latest/meta-data/public-hostname
com.amazonaws.SdkClientException: The requested metadata is not found at http://169.254.169.254/latest/meta-data/public-hostname
at com.amazonaws.internal.EC2CredentialsUtils.readResource(EC2CredentialsUtils.java:122)
at com.amazonaws.internal.EC2CredentialsUtils.readResource(EC2CredentialsUtils.java:82)
at com.amazonaws.util.EC2MetadataUtils.getItems(EC2MetadataUtils.java:400)
at com.amazonaws.util.EC2MetadataUtils.getData(EC2MetadataUtils.java:369)
at com.amazonaws.util.EC2MetadataUtils.getData(EC2MetadataUtils.java:365)
at org.springframework.cloud.aws.core.env.ec2.AmazonEc2InstanceDataPropertySource.getProperty(AmazonEc2InstanceDataPropertySource.java:89)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.collectEncryptedProperties(EnvironmentDecryptApplicationInitializer.java:199)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.decrypt(EnvironmentDecryptApplicationInitializer.java:166)
at org.springframework.cloud.bootstrap.encrypt.EnvironmentDecryptApplicationInitializer.initialize(EnvironmentDecryptApplicationInitializer.java:96)
at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:649)
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:373)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:139)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.getBinderInstance(DefaultBinderFactory.java:250)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.doGetBinder(DefaultBinderFactory.java:174)
at org.springframework.cloud.stream.binder.DefaultBinderFactory.getBinder(DefaultBinderFactory.java:120)
at org.springframework.cloud.stream.binding.BindingService.getBinder(BindingService.java:313)
at org.springframework.cloud.stream.binding.BindingService.bindProducer(BindingService.java:214)
at org.springframework.cloud.stream.binding.BindableProxyFactory.createAndBindOutputs(BindableProxyFactory.java:262)
at org.springframework.cloud.stream.binding.OutputBindingLifecycle.doStartWithBindable(OutputBindingLifecycle.java:55)
at java.util.LinkedHashMap$LinkedValues.forEach(LinkedHashMap.java:608)
at org.springframework.cloud.stream.binding.AbstractBindingLifecycle.start(AbstractBindingLifecycle.java:47)
at org.springframework.cloud.stream.binding.OutputBindingLifecycle.start(OutputBindingLifecycle.java:34)
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53)
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158)
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:893)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:163)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)
at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:171)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5225)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1135)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1869)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
此异常发生在 Amazon 开发工具包中。如果您只是不喜欢堆栈跟踪，则可以更新日志记录配置，使其仅在 com.amazonaws 的 ERROR 级别进行报告。如果您不需要正在运行的 EC2 实例的任何实例数据，则可以添加或更新注释
@EnableAutoConfiguration(exclude = {ContextInstanceDataAutoConfiguration.class})
在其中一个配置类上。
它，与检索实例元数据有关。看起来这是一个日志消息处理问题。这可以通过不使用 application.properties 文件记录异常来轻松处理。
logging.level.com.amazonaws.util.EC2MetadataUtils=error
这就是 OnAwsCloudEnvironmentCondition 的工作方式。为了了解应用程序是否在 AWS 环境中执行，它会尝试获取实例元数据 https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/instancedata-data-retrieval.html
实际上，这只是在评估期间触发@ConditionalOnAwsCloudEnvironment日志消息。
要避免此错误，只需排除这些文件 -->
@SpringBootApplication(exclude = {
org.springframework.cloud.aws.autoconfigure.context.ContextInstanceDataAutoConfiguration.class,
org.springframework.cloud.aws.autoconfigure.context.ContextStackAutoConfiguration.class,
org.springframework.cloud.aws.autoconfigure.context.ContextRegionProviderAutoConfiguration.class
}(