S3 bucket and key naming policies

It is recommended to use bucket names that comply with DNS naming conventions:

• Must be from 3 to 63 characters long
• Can contain only lowercase letters, numbers, hyphens (-), and periods (.)
• Must start and end with a letter or number
• Can be a series of valid name parts separated by periods

An object key can be a string of any UTF-8 encoded characters, up to 1024 bytes long.