title: Unable to retrieve the requested metadata /latest/meta-data/public-hostname
body: <p>I'm deploying a springboot application with spring-cloud-stream and binder for AWS Kinesis.
  The application works fine when is deployed on aws elastic beanstalk if the beanstalk is configured with public ip.
  When we set beanstalk with private ip, the application throws warnings at deploy because is unable to get some metadata from aws.</p>
  
  <p>Why is trying to get these resorurces?
  There are some workaround to remove this warnings?</p>
  
  <p>These are warnings thrown when application is deployed and no public ip is set on ec2.</p>
  
  <pre><code> 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)
  
  </code></pre>