Alex,
Thank you for the feed back. I agree that MYSQL_ROOT_PASSWORD should not be needed. And it might be able to be removed after the initial database creation. I just could not get the database container to actually create the database without it. Not sure if it is a strange DSM thing(there are many with DSM6), or what, but if I get some more time I will see about investigating that.
In the mean time if anyone else wants to try Alex’s suggestion on their DSM 6.0 and DSM 6.1 devices that would be great.