[tyrw]

Depends on the app and the context. A lot of apps need multi-tenant access control but not necessarily separate containers etc. In those cases, "adding" multi-tenancy means maintaining an Organizations table, a Roles table, and a table to map them to Users.

[danielmarkbruce]

Maybe it's just different worlds, but in my world people wouldn't consider an app using isolation via containers etc "multi-tenancy". It would be a single-tenancy application. But I guess there are are hybrids these days with such granular database options in the cloud etc.