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nixos/snapper: add snapshotRootOnBoot option

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This commit is contained in:
Artturin 2021-09-06 21:53:06 +03:00
parent a2c2a38f70
commit 25d3e6d01f
1 changed files with 23 additions and 9 deletions
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32
nixos/modules/services/misc/snapper.nix
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@ -9,6 +9,14 @@ in
{
options.services.snapper = {
snapshotRootOnBoot = mkOption {
type = types.bool;
default = false;
description = ''
Whether to snapshot root on boot
'';
};
snapshotInterval = mkOption {
type = types.str;
default = "hourly";
@ -136,14 +144,9 @@ in
systemd.services.snapper-timeline = {
description = "Timeline of Snapper Snapshots";
inherit documentation;
requires = [ "local-fs.target" ];
serviceConfig.ExecStart = "${pkgs.snapper}/lib/snapper/systemd-helper --timeline";
};
systemd.timers.snapper-timeline = {
description = "Timeline of Snapper Snapshots";
inherit documentation;
wantedBy = [ "basic.target" ];
timerConfig.OnCalendar = cfg.snapshotInterval;
startAt = cfg.snapshotInterval;
};
systemd.services.snapper-cleanup = {
@ -155,10 +158,21 @@ in
systemd.timers.snapper-cleanup = {
description = "Cleanup of Snapper Snapshots";
inherit documentation;
wantedBy = [ "basic.target" ];
wantedBy = [ "timers.target" ];
requires = [ "local-fs.target" ];
timerConfig.OnBootSec = "10m";
timerConfig.OnUnitActiveSec = cfg.cleanupInterval;
};
systemd.services.snapper-boot = lib.optionalAttrs cfg.snapshotRootOnBoot {
description = "Take snapper snapshot of root on boot";
inherit documentation;
serviceConfig.ExecStart = "${pkgs.snapper}/bin/snapper --config root create --cleanup-algorithm number --description boot";
serviceConfig.type = "oneshot";
requires = [ "local-fs.target" ];
wantedBy = [ "multi-user.target" ];
unitConfig.ConditionPathExists = "/etc/snapper/configs/root";
};
});
}