I’m pretty new to the self hosting thing but I’m enjoying it a lot and want to go a bit further down the proverbial rabbit hole.
I’m looking at a bunch of services and they all require a DB, usually a MySQL DB. It seems counterintutitive to have 20 MySQL databases each in its own Docker container. So is there a way to have one DB across most of my services? (I realize that Nextcloud and other bigger items should have a dedicted DB.)
How would I set up a shared DB in a docker-compose file?
Sure, set up a mysql server docker-compose, and create a new network that’s shared between all other docker-compose projects that need access to the DB by adding it as an existing network to whichever service needs to talk to the DB.
Downside is a centralized point of failure, and more complexity when setting up new services as you have to go create a new user/pass in the DB for each one.