bug#39819: Declarative /etc/guix/acl?

[Efraim Flashner <efraim@flashner.co.il>]

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On Sun, Oct 11, 2020 at 12:39:17PM +0200, Ludovic Courtès wrote:
> Hi!
> 
> For some reason, /etc/guix/acl is not declarative on Guix System: we let
> users modify it and assume it’s stateful, which can surprise users as in
> <https://issues.guix.gnu.org/39819>.
> 
> Should we make it declarative, just like most of /etc?  I think so.  For
> a build farm like berlin, it would force admins to explicitly list all
> the authorized keys in their config—annoying change, but not a bad
> thing.
> 
> WDYT?

I've been surprised by it at least once. (That it was more than once is
on me...)

> The problem is the transition.  We would need to at least create a
> backup of /etc/guix/acl on the next activation, or better yet, warn
> users or error out at reconfigure time.
> 
> Thoughts?
> 
> Ludo’.
> 

activation script: (when (file-exists? "/etc/guix/acl")
                     (rename-file "/etc/guix/acl"
                                  "/etc/guix/acl-old"))

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Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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