GNU bug report logs - #64862
[feature request] [shepherd] Specifying POSIX capabilities on services

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#64862: closed ([feature request] [shepherd] Specifying POSIX
 capabilities on services)
Date: Tue, 12 Nov 2024 06:10:02 +0000

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Your message dated Tue, 12 Nov 2024 15:08:29 +0900
with message-id <87y11p6l2a.fsf <at> gmail.com>
and subject line Re: bug#64862: [feature request] [shepherd] Specifying POSIX capabilities on services
has caused the debbugs.gnu.org bug report #64862,
regarding [feature request] [shepherd] Specifying POSIX capabilities on services
to be marked as done.

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: [feature request] [shepherd] Specifying POSIX capabilities on services
Date: Tue, 25 Jul 2023 17:04:26 -0400

Hello,

It'd be useful to be able to specify POSIX capabilities a Shepherd
service should have, for example for an unprivileged process to be able
to bind to ports lower than 1024.

This came up while reviewing #63082, which patch 10/16 (now dropped
because of loss of functionality) suggested to let the user/group change
be effected by Shepherd instead of by MPD itself (see:
https://issues.guix.gnu.org/63082#98).

I know that NixOS has some mechanism to do that; I think it was a simple
shell script wrapper setting the capabilities, but that's all I
remember.

-- 
Thanks,
Maxim

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: 64862-done <at> debbugs.gnu.org
Cc: Tobias Geerinckx-Rice <me <at> tobias.gr>
Subject: Re: bug#64862: [feature request] [shepherd] Specifying POSIX
 capabilities on services
Date: Tue, 12 Nov 2024 15:08:29 +0900

Hello,

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

> Hello,
>
> It'd be useful to be able to specify POSIX capabilities a Shepherd
> service should have, for example for an unprivileged process to be able
> to bind to ports lower than 1024.
>
> This came up while reviewing #63082, which patch 10/16 (now dropped
> because of loss of functionality) suggested to let the user/group change
> be effected by Shepherd instead of by MPD itself (see:
> https://issues.guix.gnu.org/63082#98).
>
> I know that NixOS has some mechanism to do that; I think it was a simple
> shell script wrapper setting the capabilities, but that's all I
> remember.

I believe that's now possible since commit 71f0676a29 ("privilege: Add
POSIX capabilities(7) support.").  Thank you, Tobias!

Closing.

-- 
Thanks,
Maxim

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