Re: [MirageOS-devel] Unikernels on docker, I missed something

[Guillaume <thouveng@xxxxxxxxx>]

After reading more articles about Docker and MirageOS I think that
what I missed is the fact that docker is used to provide an
environment for building Unikernels, not to run them. I'm a little
confused so any informations about how Mirage OS is used with docker
is welcome.

Thanks all,
Guillaume

On Tue, Jan 24, 2017 at 11:40 AM, Guillaume <thouveng@xxxxxxxxx> wrote:
> Hi community,
>
>   First I'd like to say that I love the concept of Mirage OS and I'm
> convinced that it can be something really interesting for embedded
> devices with more an more cores and power. I can imagine one unikernel
> per cores or things like that but I'm still a newbie and maybe I'm
> dreaming too much, but it is so cool :-). But I'd like to understand
> what can be really done, what is realistic compared to what is just a
> dream. In this quest I must admit that I'm little bit lost with the
> possibility of running Mirage OS as a docker container. I like the
> idea bt I think that I'm missing something and here is my question
> (feel free to redirect me if I'm on the wrong mailing list, it is my
> first post so be forgiving ;-)).
>
>   So I think that I understand that running Mirage OS on Xen is
> interesting because you can run an application as a Xen domain.
> Basically you compile your unikernel with libraries that are provided
> normally by DomU domains and you can replace a complete domain by a
> single unikernel right? So you gain memory space, probably some
> performance and a better security because by doing this you are
> reducing the surface that can be attacked right? But I don't see the
> point with docker containers. Because in a container you don't have
> any kernel libraries (maybe I'm missing something here). I mean the
> application that is running in the container relies on the operating
> system where docker is running. What I mean is that you can already
> run an application without using the complete environment provided by
> the distribution. For example you can run a GO application that is a
> static app from scratch [1]. So if you can enlighten me on the
> advantage of using Mirage OS on docker it will be cool. I love the
> idea anyway. Thanks for your attention and if it has been already
> answered please provide me the links, I searched into the archive but
> I didn't found it.
>
> Best regards,
> Guillaume
>
>
> [1]: http://blog.xebia.com/create-the-smallest-possible-docker-container/

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