I want a code sample to test s3 upload using role, not access key.

[sangbinlee]

Summary

Since the application runs in the eks environment, we have been guided to use a role when authenticating.
I need s3 file upload sample code using role.

When uploading file to s3
Use a role, not an access key.

Basic example

// Upload a local file to Amazon S3
	S3AsyncClient s3Client = S3AsyncClient.crtCreate();
	PutObjectResponse putObjectResponse =
	      s3Client.putObject(req -> req.bucket(BUCKET_NAME)
	                                   .key(downloadFileName),
	                        AsyncRequestBody.fromFile(Paths.get(FILE_PATH)))
	              .join();

Motivation

You can do S3 FILE UPLOAD using a role.

[sangbinlee]

The following is an error that occurs when my app runs s3 upload test in the aws eks environment. I want to know what could be the cause.

software.amazon.awssdk.services.sts.model.StsException: The security token included in the request is expired (Service: Sts, Status Code: 403, Request ID: c6d93bbb-e8f3-44cf-9201-4e3ae3098dbe)