You have answered my question.  There are, roughly, using old 
terminology, heavy-weight containers and light-weight containers.  
VMware used to offer heavy-weight containers that would run "any" MS Win 
application under Linux (presuming the same underlying ISA), but were n 
some instances extreme resource hogs.  Docker thus seems to be a 
light-weight container with strong limitations as to the differences in 
the underlying environment and OS structures (again, same ISA -- 
different ISAs require rather different approaches, including the old 
Sun approach on SPARC workstations of having a Sbus IA-32 "coprocessor" 
board to run a licensed copy of MS Win).

Yasha Karant

On 01/30/2015 10:14 AM, Jamie Duncan wrote:
> Using containers is nothing like using a fully virtualized kernel. 
> It's using cgroups, kernel namespaces, and selinux to isolate 
> applications within Linux and make them easier to deliver.
>
> So you can't run a windows app natively in docker. You'd have to run 
> Wine in docker and execute your application that way. It's not a 
> replacement for virtualizaton.
>
> On Fri, Jan 30, 2015 at 12:45 PM, Yasha Karant <[log in to unmask] 
> <mailto:[log in to unmask]>> wrote:
>
>     On a different (albeit related) thread, the recommendation was
>     made to use Docker to "port" alien applications and environments
>     (presumably with the ISA and basic machine components used by SL7)
>     to SL 7.  Looking at the Docker documentation and license (license
>     reproduced below), this seems feasible -- rather than using any VM
>     for the purpose of running such an application.
>
>     How many have tried Docker?  Does it work well?  For example, will
>     a legally licensed MS Win application that does not run under
>     Wine/CrossOver work under Docker under SL 7 the same as it would
>     under VirtualBox with a full install of say MS Win 8.1 (soon MS
>     Win 10)?  Can one make a Docker application package on the target
>     host (e.g., SL 7) or does one need first a full install of the
>     (virtual) base (e.g., DLLs and OS environment structures of the
>     original host of the application, e.g., MS Win) under which to
>     "dockerize" (e.g., run MS Win under VirtualBox under SL7,
>     dockerize a MS Win application, and then run the dockerized
>     application under SL7 without VirtualBox or any regular VM)?
>
>     from -- https://www.docker.com/company/aboutus/
>
>     Business Model
>
>     Docker, Inc. offers Docker-related products and services and is
>     creating a network of certified professional support, training,
>     and services providers. We are committed to keeping Docker open
>     source under the Apache 2.0 license.
>
>     Yasha Karant
>
>     End quote.
>
>
>
>
> -- 
> Thanks,
>
> Jamie Duncan
> @jamieeduncan
>