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nixos/modules/misc/ids: Document more alternatives than DynamicUsers

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Peder Bergebakken Sundt
2025-06-10 12:52:49 +02:00
parent 12228332e2
commit 7d7cd81fd7
1 changed files with 10 additions and 4 deletions
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nixos/modules/misc/ids.nix
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@@ -6,11 +6,17 @@
# https://github.com/NixOS/rfcs/blob/master/rfcs/0052-dynamic-ids.md
#
# Use of static ids is deprecated within NixOS. Dynamic allocation is
# required, barring special circumstacnes. Please check if the service
# required, barring special circumstances. Please check if the service
# is applicable for systemd's DynamicUser option and does not need a
# uid/gid allocation at all. Systemd can also change ownership of
# service directories using the RuntimeDirectory/StateDirectory
# options.
# uid/gid allocation at all. If DynamicUser is problematic consider
# making a `isSystemUser=true` user with the uid and gid unset and let
# NixOS pick dynamic persistent ids on activation. These IDs are persisted
# locally on the host in the event that the user is removed and added back.
# Systemd will also change ownership of service directories using the
# RuntimeDirectory/StateDirectory options just in case a change happens.
# It's only for special circumstances like for example the ids being hardcoded
# in the application or the ids having to be consistent across multiple hosts
# that configuring static ids in this file makes sense.
{ lib, ... }: