The problem is when Docker is used to gift wrap a mess. Then there are rotting dependencies in the containers. The nice thing about Debian packaged things is the maintainer is forced to do things properly. Even more so if they get it into the repos.

My preference is Debian Stable in LXC or even KVM for services. I only go for Docker if that is the recommended option. There is stuff out there where the recommend way is their VM image which is full of their soup of Dockers.

Docker is in my pile of technologies I don’t really like or approve of, but don’t have the energy to really fight.