136 lines
4.1 KiB
Nix
136 lines
4.1 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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let
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cfg = config.systemd.sysupdate;
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format = pkgs.formats.ini { };
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definitionsDirectory = utils.systemdUtils.lib.definitions
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"sysupdate.d"
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format
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cfg.transfers;
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in
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{
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options.systemd.sysupdate = {
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enable = lib.mkEnableOption (lib.mdDoc "systemd-sysupdate") // {
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description = lib.mdDoc ''
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Atomically update the host OS, container images, portable service
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images or other sources.
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If enabled, updates are triggered in regular intervals via a
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`systemd.timer` unit.
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Please see
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<https://www.freedesktop.org/software/systemd/man/systemd-sysupdate.html>
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for more details.
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'';
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};
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timerConfig = utils.systemdUtils.unitOptions.timerOptions.options.timerConfig // {
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default = { };
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description = lib.mdDoc ''
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The timer configuration for performing the update.
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By default, the upstream configuration is used:
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<https://github.com/systemd/systemd/blob/main/units/systemd-sysupdate.timer>
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'';
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};
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reboot = {
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enable = lib.mkEnableOption (lib.mdDoc "automatically rebooting after an update") // {
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description = lib.mdDoc ''
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Whether to automatically reboot after an update.
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If set to `true`, the system will automatically reboot via a
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`systemd.timer` unit but only after a new version was installed.
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This uses a unit completely separate from the one performing the
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update because it is typically advisable to download updates
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regularly while the system is up, but delay reboots until the
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appropriate time (i.e. typically at night).
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Set this to `false` if you do not want to reboot after an update. This
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is useful when you update a container image or another source where
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rebooting is not necessary in order to finalize the update.
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'';
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};
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timerConfig = utils.systemdUtils.unitOptions.timerOptions.options.timerConfig // {
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default = { };
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description = lib.mdDoc ''
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The timer configuration for rebooting after an update.
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By default, the upstream configuration is used:
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<https://github.com/systemd/systemd/blob/main/units/systemd-sysupdate-reboot.timer>
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'';
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};
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};
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transfers = lib.mkOption {
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type = with lib.types; attrsOf format.type;
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default = { };
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example = {
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"10-uki.conf" = {
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Transfer = {
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ProtectVersion = "%A";
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};
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Source = {
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Type = "url-file";
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Path = "https://download.example.com/";
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MatchPattern = "nixos_@v.efi.xz";
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};
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Target = {
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Type = "regular-file";
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Path = "/EFI/Linux";
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PathRelativeTo = "boot";
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MatchPattern = ''
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nixos_@v+@l-@d.efi"; \
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nixos_@v+@l.efi \
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nixos_@v.efi
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'';
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Mode = "0444";
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TriesLeft = 3;
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TriesDone = 0;
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InstancesMax = 2;
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};
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};
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};
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description = lib.mdDoc ''
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Specify transfers as a set of the names of the transfer files as the
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key and the configuration as its value. The configuration can use all
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upstream options. See
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<https://www.freedesktop.org/software/systemd/man/sysupdate.d.html>
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for all available options.
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'';
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};
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};
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config = lib.mkIf cfg.enable {
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systemd.additionalUpstreamSystemUnits = [
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"systemd-sysupdate.service"
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"systemd-sysupdate.timer"
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"systemd-sysupdate-reboot.service"
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"systemd-sysupdate-reboot.timer"
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];
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systemd.timers = {
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"systemd-sysupdate" = {
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wantedBy = [ "timers.target" ];
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timerConfig = cfg.timerConfig;
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};
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"systemd-sysupdate-reboot" = lib.mkIf cfg.reboot.enable {
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wantedBy = [ "timers.target" ];
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timerConfig = cfg.reboot.timerConfig;
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};
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};
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environment.etc."sysupdate.d".source = definitionsDirectory;
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};
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meta.maintainers = with lib.maintainers; [ nikstur ];
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}
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