There was a request to provide Docker support for DSF a while ago (see here) but I see no real benefit for most users. Upcoming plugins for DSF (or rather easy-to-use plugins) will have limited permissions enforced by AppArmor security profiles so I don't see any need for container solutions.
For users who don't want to use AppArmor it may be an alternative to run the plugin services in a Docker container but that will require extra configuration.