D Compiler as Docker Image

[Eugene Wissner via Digitalmars-d-announce]

On Tuesday, 14 February 2017 at 23:24:03 UTC, Stefan wrote:
> Want to share the outcome of a vivid discussion today at the 
> Munich D Meetup with you.
>
> Installation of a D Compiler is ok-ish. But sometime you don't 
> want to install it. Sometimes you want a very clean 
> compiler-environment. Sometimes you want to compile your 
> projects in the cloud and not on your local PC.
>
> To ease this a bit I drafted Docker Images for the Compilers 
> (dmd, ldc, gdc, sdc) [1]. Based on this you have a clean 
> compilation environment. And you even could use dub with it. No 
> installation anymore.
>

Seems to be very useful for testing. I have mostly only the 
latest stable dmd installed in the system. But need to test 
against elder versions and other compilers before travis reports 
that the build fails.