Seafile-docker 7.0 setup: no instructions on the database?

Greetings,

I’m trying to set up a new installation of seafile-docker and i have a lot of questions about mysql. The “Deploy seafile with docker.md” seems simple enough, but it leaves a lot of steps out for those that don’t already know how.

I have docker-compose installed.
I have mysql installed. Do I need to create a database? What should it be called?

I also get some error “Couldn’t connect to Docker daemon at http+docker://localunixsocket - is it running?”