My 2p as a Software Engineer/Developer.

Your config file and "My Database" are software assets and should be treated as such meaning backup, multiple copies, etc...

With regard to providing configuration file to a customer... I am of the opinion that once customer pays for configuration, it is within their right to make a request for copy of said file. Until it is paid for, whether or not to deliver is up to the vendor.

This was once a highly debated topic. Execute a search for 'upload' and you can read more about it.