Re: declarative containers (was Re: [EXT] Re: Enterprise Guix Hosting?)

[Przemysław Kamiński]

On 23.01.2023 16:34, Giovanni Biscuolo wrote:
> Hello everybody,
>
> (this is an old thread started on help-guix [1])
>
> Ludovic Courtès <ludo@gnu.org> writes:
>
> > "Thompson, David" <dthompson2@worcester.edu> skribis:
> >
> > > On Wed, Aug 31, 2022 at 2:40 AM Ricardo Wurmus <rekado@elephly.net> wrote:
> > > > Another thing that seems to be missing is a way to supervise and manage
> > > > running containers.  I use a shepherd instance for this with
> > > > container-specific actions like this:
>
> [...]
>
> > > Hey that's a real nice starting point for a container management tool!
> > >   So maybe there should be a system service to manage containers and
> > > then a 'docker compose'-like tool for declaratively specifying
> > > containers and their network bridging configuration that is a client
> > > of the service?
> >
> > Agreed!  We could turn Ricardo’s code into ‘container-guest-service’ or
> > something and have ‘containerized-operating-system’ add it
> > automatically.
>
> please there was some progress with this service?
>
> once done, could it be possible to declaratively start a whole network
> of containers using a dedicated home-service, or
> containerized-operating-systems (also on foreign distros)?
>
> right now with "guix system container" we can imperatively manage
> (start/stop, connect to the console with nsenter) and connect them
> to the network [2], Ricardo showed us how he do it programmatically;
> having a declarative interface (os-records) whould be awesome!
>
> I'm very interested and willing to test it, if needed
>
> thanks! Gio'
>
>
> [1] id:878rn4syql.fsf@elephly.net
>
> [2] thank you Ricardo for the cookbook section!
> https://guix.gnu.org/en/cookbook/en/guix-cookbook.html#Guix-System-Containers


Does anyone have a simple example of a container with PostgreSQL and 
some web service like Flask? I'm new to Guix and I did see the 
PostgreSQL example that is linked in codebook but I'm missing an example 
of adding a custom service and was a bit overwhelming when I looked at 
the source code.

Best,
Przemek

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