This is to especially fix FPM 1.0+ complaining that we told it we have an /etc/default/docker "config file", but didn't actually include one.
Upstream-commit: 7fd6dcc831d28cc1ca1a5d56c9043354228f087d
Component: engine
This reverts commit c81bb20f5b2b5d86059c6004e60ba23b03d30fe0.
After re-reading the documentation: "The Recommends field should list packages that would be found together with this one in all but unusual installations."
Thus, "Recommends" is an acceptable place for this dep, and anyone disabling that gets to keep the pieces.
The main crux of why this needs to be reverted is because it breaks Debian completely because "lxc" and "cgroup-bin" can't be installed concurrently.
Upstream-commit: e01732f85769ac434e2614652aa25cd0ace7a4df
Component: engine
Since cgroup-bin is only "recommended" by the lxc package on Ubuntu, but is necessary for having the proper cgroups mounted for Docker to function, this makes some sense for us to add separately.
Fixes#2990
Upstream-commit: c81bb20f5b2b5d86059c6004e60ba23b03d30fe0
Component: engine
