Pre-alpha D language online tour

[André via Digitalmars-d]

On Monday, 25 January 2016 at 20:02:10 UTC, rsw0x wrote:
> On Monday, 25 January 2016 at 18:17:09 UTC, André wrote:
>> This tour doesn't allow compiling online because the current 
>> implementation would just make it too easy to hijack the 
>> server :-) Compiling and running online can be activated when 
>> compiling locally though. My goal would be to integrate the 
>> tour with DPaste in the long run.
>
> I wonder how much bandwidth it would use to host a sandboxed 
> server with dmd on it. Are any of the dpaste guys around that 
> could give an estimate?

If DPaste isn't an option I thought about implementing sandbox 
compiling within Docker containers. A Docker container running 
rdmd to compile online code is quite easily put together. The 
advantage with Docker is that it starts quickly and can be 
limited in terms of memory and CPU. And it is a pretty safe 
sandbox (so far). The current code actually implements caching 
already so that not every unchanged code example has to be 
compiled online.
The dlang-tour currently runs in a Docker container itself 
because it makes deployment later on very easy. So together with 
some sandboxing mechanism for compiling it should be able to 
scale quite well depending on future usage.
The question is just whether it's better to use the existing 
DPaste infrastructure or to implement something especially for 
the tour?