Help with fresh install (Docker-latest) using MySQL db


I intend to run Nextcloud’s Docker-latest image in a container on Ubuntu 18.04 with Apache 2.4.29 and PHP 7.2.14. My hosting provider offers me Plesk Onyx for server administration, which comes with an extension for pulling/running Docker stuff.

I have a MySQL server installed & running for an existing blog’s database. Can I use Plesk to set up another database on that server instance for Nextcloud? If so, what do I need to do to tweak the new Nextcloud installation’s environment variables and/or config files to use that database?

Thanks for any insight.