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modules/sops: allow forcing systemd-based activation

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By allowing users to optionally force using systemd unit-based
activation, they can inject dependencies on other services or
mountpoints (for instance, when the age key is not stored on the root
file system).
This commit is contained in:
Leon Schuermann 2025-11-12 20:15:30 -05:00
parent d75e4f89e5
commit 8770ee5717
1 changed files with 15 additions and 6 deletions
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21
modules/sops/default.nix
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@ -29,10 +29,6 @@ let
# Currently, all templates are "regular" (there's no support for `neededForUsers` for templates.)
regularTemplates = cfg.templates;
useSystemdActivation =
(options.systemd ? sysusers && config.systemd.sysusers.enable)
|| (options.services ? userborn && config.services.userborn.enable);
withEnvironment = import ./with-environment.nix {
# sops >=3.10.0 now unconditionally searches
# for an SSH key in $HOME/.ssh/, introduced in #1692 [0]. Since in the
@ -319,6 +315,19 @@ in
'';
};
useSystemdActivation = lib.mkOption {
type = lib.types.bool;
default =
(options.systemd ? sysusers && config.systemd.sysusers.enable)
|| (options.services ? userborn && config.services.userborn.enable);
description = ''
Use a systemd unit to install secrets, instead of deploying them using an activation script.
This option is automatically enabled when systemd-sysusers or userborn are used to manage users and groups.
It can also be useful to specify additional dependencies to be satisfied before secrets are installed, such as required mountpoints for SOPS key files.
'';
};
age = {
keyFile = lib.mkOption {
type = lib.types.nullOr pathNotInStore;
@ -433,7 +442,7 @@ in
);
# When using sysusers we no longer are started as an activation script because those are started in initrd while sysusers is started later.
systemd.services.sops-install-secrets = lib.mkIf (regularSecrets != { } && useSystemdActivation) {
systemd.services.sops-install-secrets = lib.mkIf (regularSecrets != { } && cfg.useSystemdActivation) {
wantedBy = [ "sysinit.target" ];
after = [ "systemd-sysusers.service" ];
environment = cfg.environment;
@ -447,7 +456,7 @@ in
};
system.activationScripts = {
setupSecrets = lib.mkIf (regularSecrets != { } && !useSystemdActivation) (
setupSecrets = lib.mkIf (regularSecrets != { } && !cfg.useSystemdActivation) (
lib.stringAfter
(
[