FSE team has raised an issue on MinIO client. The essence of the issue is that MinIO does not support implicit AWS authorization using roles. MinIO always requires explicit AWS credentials to be passed to it. It is bad from security POV and FSE team does not like such solution because of this security issue.
We should investigate is it possible to authorize implicitly with MinIO client (I mean that MinIO client is being developed now and this possibility can be implemented recently) and if this implicit authorization is still not possible then we have to discuss and choose some other solution instead of MinIO.