AWS DotNet SDK错误:无法从EC2实例元数据服务获取IAM安全凭证

问题描述

我使用来自此处，以便使用c#代码从AWS SecretsManager检索秘密.

I use an example from here in order to retreive a secret from AWS SecretsManager in c# code.

我已经通过AWS CLI在本地设置了凭据，并且能够使用AWS CLI命令"aws secretsmanager list-secrets"检索秘密列表.

I have set credentials locally via AWS CLI, and I am able to retreive secret list using AWS CLI command "aws secretsmanager list-secrets".

但是c#控制台应用程序失败并出现错误:

But c# console app fails with an error:

> Unhandled exception. System.AggregateException: One or more errors occurred. (Unable to get IAM security credentials from EC2 Instance Metadata Service.)
 ---> Amazon.Runtime.AmazonServiceException: Unable to get IAM security credentials from EC2 Instance Metadata Service.
   at Amazon.Runtime.DefaultInstanceProfileAWSCredentials.FetchCredentials()
   at Amazon.Runtime.DefaultInstanceProfileAWSCredentials.GetCredentials()
   at Amazon.Runtime.DefaultInstanceProfileAWSCredentials.GetCredentialsAsync()
   at Amazon.Runtime.Internal.CredentialsRetriever.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.RetryHandler.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.RetryHandler.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.CallbackHandler.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.CallbackHandler.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.ErrorCallbackHandler.InvokeAsync[T](IExecutionContext executionContext)
   at Amazon.Runtime.Internal.MetricsHandler.InvokeAsync[T](IExecutionContext executionContext)
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at System.Threading.Tasks.Task`1.get_Result()
   at AWSConsoleApp2.GetSecretValueFirst.GetSecret() in D:\Work\Projects\Training\AWSConsoleApp2\AWSConsoleApp2\GetSecretValueFirst.cs:line 53
   at AWSConsoleApp2.Program.Main(String[] args) in D:\Work\Projects\Training\AWSConsoleApp2\AWSConsoleApp2\Program.cs:line 11

当我更改原始构造函数调用

When I change original constructor call

添加了类型为AWSCredentials的继承参数

with adding inherited parameter of type AWSCredentials

它工作正常.

StoredProfileAWSCredentials类已过时，但可以使用它.我使用的库可以在其他计算机上正常运行，并且无法更改它们.

Class StoredProfileAWSCredentials is obsolete but it works to use it. I use libraries that work without errors on the other machines and I cannot change them.

我为属于Administrators组的用户使用凭据，并且具有对SecretsMnager的完全访问权限.在c#代码中正确设置了地区，默认是配置文件.

I use credentials for user that belongs to Administrators group and has full access to SecretsMnager. Region has set properly in c# code, profile is default.

有什么想法吗?感谢您的进步

Any ideas? Thanks for advance

推荐答案

我遇到了同样的问题，这是我如何在开发环境中修复它

I had the same issue, here is how I fixed it on my development environment

1. 我使用适用于Visual Studio的AWS扩展创建了一个AWS配置文件
2. 设置个人资料后，凭据将通过该个人资料传递，并且对我来说效果很好

这里需要注意的是，访问密钥管理器的用户个人资料应为秘密"管理器分配一个有效的安全组.

Point to note here, the user profile accessing the key manager should have a valid security group assigned for the Secrets manager.

尝试一下，让我知道，进展如何.

Try it out let me know, how it went.

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