bucket
The name of the bucket from which the server-side encryption configuration is retrieved.
**Directory buckets ** - When you use this operation with a directory bucket, you must use path-style requests in the format http://s3express-control.<i>region-code</i>.amazonaws.com/<i>bucket-name</i>
. Virtual-hosted-style requests aren't supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must also follow the format <i>bucket-base-name</i>--<i>zone-id</i>--x-s3
(for example, <i>DOC-EXAMPLE-BUCKET</i>--<i>usw2-az1</i>--x-s3
). For information about bucket naming restrictions, see Directory bucket naming rules in the Amazon S3 User Guide