GNU bug report logs - #31825
guix offload fails with guix-authenticate error

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Package: guix;

Reported by: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>

Date: Thu, 14 Jun 2018 03:55:02 UTC

Severity: normal

Merged with 34786

Done: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: bug#31825: closed (Re: bug#31825: guix offload fails with
 guix-authenticate error)
Date: Sun, 08 Aug 2021 04:10:01 +0000
[Message part 1 (text/plain, inline)]
Your bug report

#31825: guix offload fails with guix-authenticate error

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 31825 <at> debbugs.gnu.org.

-- 
31825: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=31825
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: ludo <at> gnu.org (Ludovic Courtès)
Cc: 31825-done <at> debbugs.gnu.org
Subject: Re: bug#31825: guix offload fails with guix-authenticate error
Date: Sun, 08 Aug 2021 00:09:20 -0400
Hi,

Maxim Cournoyer <maxim.cournoyer <at> gmail.com> writes:

> Just as a follow-up; I've managed to fall into this trap again,
> attempting to authorize the keys by adding them to the 'authorize-keys'
> field of guix-configuration record.
>
> On the local machine:
>
> guix offload test /etc/guix/machines.scm 127.0.0.1
> guix offload: testing 1 build machines defined in '/etc/guix/machines.scm'...
> guix offload: Guix is usable on '127.0.0.1' (test returned "/gnu/store/883yjkl46dxw9mzykykmbs0yzwyxm17z-test")
> guix offload: '127.0.0.1' is running GNU Guile 3.0.0
> sending 1 store item (0 MiB) to '127.0.0.1'...
> exporting path `/gnu/store/l9mph3k5l26nm8mb50imsklbsz0bji0b-export-test'
> guix offload: error: program `/gnu/store/amjsgks2n05k9lkck78z64nphad1dkqr-guix-1.0.1-13.50299ad/bin/guix' failed with exit code 1
>
>
> On the remote machine:
>
> sudo strace -p 15683 -p 15716 -f -s345 -o /tmp/log
>
> And found within /tmp/log:
>
> 16120 write(2, "guix authenticate: error: error: unauthorized public
> key: (public-key \n (ecc \n (curve Ed25519)\n (q #MY-PUBLIC-KEY#)\n
> )\n )\n", 176) = 176
>
> So, still actual :-)
>
> Maxim

I think many things have been improved in the diagnostics of guix
offload since the original report.  The last gotcha I had hit described
above appears to had been caused by the keys added to the
'authorized-keys' field of the 'guix-configuration' record not being
taken into account when a /etc/guix/acl file was already populated (it
used to not be declarative).

Closing this forgotten issue.

Thanks,

Maxim

[Message part 3 (message/rfc822, inline)]
From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: guix offload fails with guix-authenticate error
Date: Wed, 13 Jun 2018 23:54:15 -0400
Hello!

I've read the documentation carefully many times, but I still can't make
`guix offload' work. It always fails like so:

--8<---------------cut here---------------start------------->8---
guix offload test
guix offload: testing 1 build machines defined in '/etc/guix/machines.scm'...
guix offload: '192.168.1.105' is running guile (GNU Guile) 2.2.3
guix offload: Guix is usable on '192.168.1.105' (test returned "/gnu/store/883yjkl46dxw9mzykykmbs0yzwyxm17z-test")
sending 1 store item to '192.168.1.105'...
exporting path `/gnu/store/wrv01knf5xa76j73afscj066pbqq1na3-export-test'
guix offload: error: build failed: program `guix-authenticate' failed with exit code 1
--8<---------------cut here---------------end--------------->8---

In GDB, I've attempted to follow the forks but without success. The
most useful hint I've got was the following message about
guix-authenticate not being found:

--8<---------------cut here---------------start------------->8---
sudo gdb --args guix-daemon --build-users-group=guixbuild
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
[...]
(gdb) r
Starting program: /home/mcournoyer/src/guix/guix-daemon --build-users-group=guixbuild
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/gnu/store/4sqaib7c2dfjv62ivrg9b8wa7bh226la-glibc-2.26.105-g0890d5379c/lib/libthread_db.so.1".
accepted connection from pid 2241, user mcournoyer
accepted connection from pid 29024, user mcournoyer
accepted connection from pid 2241, user mcournoyer
accepted connection from pid 29068, user mcournoyer
error: executing `guix-authenticate': No such file or directory
--8<---------------cut here---------------end--------------->8---

Things I've tried without success:

1. Installing guix into my user's profile and then this to the ~/.bashrc
on the remote machine:

--8<---------------cut here---------------start------------->8---
GUIX_PROFILE=$HOME/.guix-profile
source $GUIX_PROFILE/etc/profile

# Hack to make guix-authenticate available
export PATH=$PATH:$GUIX_PROFILE/libexec
--8<---------------cut here---------------end--------------->8---

2. Noticing that the guix-daemon I was debugging (the one at
~/src/guix/guix-daemon) was using nixLibexecDir = "/usr/local/libexec"
and that the guix-daemon has code doing this in guix-daemon.cc:469:

--8<---------------cut here---------------start------------->8---
      /* Hackily help 'local-store.cc' find our 'guix-authenticate' program, which
	 is known as 'OPENSSL_PATH' here.  */
      std::string search_path;
      search_path = settings.nixLibexecDir;
      if (getenv ("PATH") != NULL)
	{
	  search_path += ":";
	  search_path += getenv ("PATH");
	}

      setenv ("PATH", search_path.c_str (), 1);
--8<---------------cut here---------------end--------------->8---

I tried:

--8<---------------cut here---------------start------------->8---
sudo ln -s /var/guix/profiles/per-user/mcournoyer/guix-profile/libexec /usr/local/libexec
--8<---------------cut here---------------end--------------->8---

I'm motivated to get this working; would be pleased to debug further
given fresh ideas.

Thanks,

Maxim



This bug report was last modified 4 years and 9 days ago.

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