bug#61856: closed (guix system container --network fails b.c. of /etc/hosts)

[GNU bug Tracking System]

Your message dated Sun, 26 Mar 2023 14:41:53 +0100
with message-id <87v8infx1s.fsf@gmx.com>
and subject line Re: bug#61627: Cannot start a container built with `guix 
system container --network'.
has caused the debbugs.gnu.org bug report #61627,
regarding guix system container --network fails b.c. of /etc/hosts
to be marked as done.

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-- 
61627: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=61627
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> --- Begin Message ---
>
>
>
> Subject: 
>
> guix system container --network fails b.c. of /etc/hosts
>
>
>
>
> Date: 
>
> Mon, 27 Feb 2023 21:09:01 +0000
>
>
>
>
> `guix describe` gives the following:
>
> Generation 67   Feb 27 2023 17:41:15    (current)
>   guix cf9e050
>     repository URL: https://git.savannah.gnu.org/git/guix.git
>     branch: master
>     commit: cf9e0508b26196dc985302776d860a0359652c59
>
> Consider the system configuration given at this url: 
> https://git.sr.ht/~elevenkb/dotfiles/blob/master/configs/11kb/guix-server.scm
>
> If I run `sudo $(guix system container guix-server.scm)` then my container 
> works, but if I run `sudo $(guix system container guix-server.scm --network)` 
> then my container fails to work. I instead get an error which goes like this:
>
> In unknown file:
>            0 (copy-file "/etc/static/hosts" "/etc/hosts")
>
> ERROR: In procedure copy-file:
> In procedure copy-file: Read-only file system
>
>
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: bug#61627: Cannot start a container built with `guix system container --network'. Date: Sun, 26 Mar 2023 14:41:53 +0100 User-agent: mu4e 1.8.13; emacs 28.2

Pierre Langlois <pierre.langlois@gmx.com> writes:

> [[PGP Signed Part:Undecided]]
> Hi Arun and Bruno,
>
> Arun Isaac <arunisaac@systemreboot.net> writes:
>
>>> I'm inclined to keep it in %network-configuration-files just to be
>>> safe.
>>
>> I agree. I don't really understand the implications of removing
>> /etc/hosts from %network-configuration-files. I would err on the side of
>> caution and leave it there for now.
>
> That sounds very sensible.
>
>>
>> @Pierre: Could you make a patch of the fix you suggested earlier
>> (removing hosts-service-type when the --network flag is provided) and
>> push it? Thank you!
>
> Sounds good! Just testing the following patch and will push it in a
> minute.
>
> [[End of PGP Signed Part]]
> From 42fbe62d52a82d1003c3d7039d3c4a46806c5cee Mon Sep 17 00:00:00 2001
> Message-Id: 
> <42fbe62d52a82d1003c3d7039d3c4a46806c5cee.1679836531.git.pierre.langlois@gmx.com>
> From: Pierre Langlois <pierre.langlois@gmx.com>
> Date: Sun, 26 Mar 2023 13:55:14 +0100
> Subject: [PATCH] linux-container: Remove hosts-service-type when network is
>  shared.
>
> Fixes <https://issues.guix.gnu.org/61627>.
>
> * gnu/system/linux-container.scm (container-essential-services): When
> shared-network? is true, remove the hosts-service-type service kind.

Pushed as 42fbe62d52a82d1003c3d7039d3c4a46806c5cee

Thanks,
Pierre

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