From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Subject: Re: Declarative containers
Date: Wed, 27 Mar 2019 12:18:02 +0100
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In-Reply-To: <87zhphwbju.fsf@roquette.mug.biscuolo.net> (Giovanni Biscuolo's
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To: Giovanni Biscuolo <g@xelera.eu>
Cc: guix-devel@gnu.org, Joshua Marshall <j.marshall@arroyo.io>

Hi,

Giovanni Biscuolo <g@xelera.eu> skribis:

> Ludovic Court=C3=A8s <ludo@gnu.org> writes:

[...]

>> We could have a =E2=80=98container=E2=80=99 (or =E2=80=98sub-system=E2=
=80=99?) service;
>
> mumble: `container` is so abused that it's starting to become a buzzword
> to my ears, `sub-system` is probably more semantic

The Hurd has had this thing called =E2=80=9Csub-Hurd=E2=80=9D, which is sim=
ilar to what
we=E2=80=99re talking about.

>> you=E2=80=99d pass it an <operating-system> and it=E2=80=99d create a Sh=
epherd service
>> that runs that OS in a container.
>
> what is the method used to instantiate containers with Guix?

=E2=80=98guix system container=E2=80=99 creates an executable that starts t=
he container.
That executable is a Guile program that uses (gnu build
linux-container), a module that provides facilities to create processes
under separate name spaces, etc.

IOW all the functionality is provided by Guix; no systemd-nspawn,
bubblewrap, lxc, etc.

Ludo=E2=80=99.