I built some custom providers. They work fine. In my dev server i had to create a module.xml and activate the module in standalone.xml.
What‘s the best way to run the module in docker - I’d prefer some environment parameter to activate the module instead of changing the standalone.xml or standalone-ha.xml.
Mounting the module directory is already done.
I also tried deploying via the deployments directory, but that failed for my module while its fine for simpler things like themes.