Seed and migrate the database using gitlab:db:configure
I added a digest around some of the db params and threw that into the update status, so if you change the db name, host port, etc. It will trigger the command to run again. This gives you a chance to switch from internal to external db after having run reconfigure.
Fixes https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1236
Builds on dev:https://dev.gitlab.org/gitlab/omnibus-gitlab/commit/98aeecfd9eb6ad46add0d324f23f4b153fbf3d9d/builds