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Re: Using Guix inside a Guix container
From: |
Wojtek Kosior |
Subject: |
Re: Using Guix inside a Guix container |
Date: |
Fri, 3 Feb 2023 18:35:37 +0100 |
Hi Konrad,
I wanted to try specifying currently used version of Guix in some other
way to avoid computing Guix inside the container. I tested first
without a container
guix shell -e '((@ (gnu packages package-management) current-guix))' -- guix
describe
and the result is also bad — it still tries to compute Guix from
scratch every time.
So it seems exposing of folders is unlikely to help here because the
problem lies elsewhere :/
Perhaps someone else will be able to give a solution?
Wojtek
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On Fri, 03 Feb 2023 17:52:22 +0100
Konrad Hinsen <konrad.hinsen@fastmail.net> wrote:
> Hi Guix,
>
> I have been playing with nested Guix containers recently, with some
> suprising findings, and I am wondering if what I am doing is considered
> officially supported or not.
>
> First: why? My use case is scientific workflows, for example using
> snakemake. I want to run my workflows in Guix containers, for
> reproducibility plus other reasons. But my workflows run other programs
> in their tasks (basically just "shelling out"), and those tasks may use
> their own Guix containers.
>
> Superficially, this works fine if I add the "guix" package to my "outer"
> container and expose the store plus the daemon's socket:
>
> guix shell -C guix \
> --expose=/var/guix/daemon-socket/socket \
> --expose=/gnu/store \
> -- \
> guix shell -C coreutils -- ls /
>
> But now for the first surprise:
>
> $ guix describe
> Generation 35 janv. 19 2023 12:34:57 (current)
> guix 8221cb6
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: master
> commit: 8221cb6d2ae5624829bf514d25ae234c073e35d5
>
> $ guix shell -C guix -- guix describe
> guix 9fe5b49
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: master
> commit: 9fe5b490df83ff32e2e0a604bf636eca48b9e240
>
> The Guix in my container is an older one, apparently the 1.4.0 release.
> Why? Can I change this?
>
> My first attempt was time-machine:
>
> guix shell -C -N guix nss-certs \
> --expose=/var/guix/daemon-socket/socket \
> --expose=/gnu/store \
> -- \
> guix time-machine -C channels.scm -- describe
>
> Updating channel 'guix' from Git repository at
> 'https://git.savannah.gnu.org/git/guix.git'...
> Authenticating channel 'guix', commits 9edb3f6 to 8221cb6 (331 new
> commits)...
> Computing Guix derivation for 'x86_64-linux'... |
> guix 8221cb6
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: master
> commit: 8221cb6d2ae5624829bf514d25ae234c073e35d5
>
> Great! Except that every time I run this command, it does the channel
> update from scratch, so it's prohibitively slow. Sharing
> ${HOME}/.cache/guix seems to fix that. So... finally...
>
> guix shell -C -N guix nss-certs \
> --expose=/var/guix/daemon-socket/socket \
> --expose=/gnu/store \
> --share=${HOME}/.cache/guix \
> -- \
> guix time-machine -C channels.scm \
> -- \
> shell -C coreutils \
> -- \
> ls /
>
> guix shell: error: mount: mount "none" on
> "/tmp/guix-directory.vpOEDC/sys": Operation not permitted
>
> Now I am lost. It doesn't matter which command I put on the last line,
> it's creating a container via time-machine running in another container
> that leads to the error.
>
> Any ideas?
>
> Cheers,
> Konrad.
>
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