buckets used by app when testing it must be created with the same grant used in the credentials file

[Torkin1]

Buckets used by the app must be specified at runtime when launching the microservice.
If the bucket specified in the command line is not created with the same Amazon grant used to obtain the token in the credentials file, that bucket cannot be accessed.
This forces the tester to change the bucket name used by the application with the one created with its own grant.