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privatemounts = false is required if snap is separate from the backup service.

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Joseph Hanson 2025-02-09 19:24:36 -06:00
parent e782f7c268
commit 4a4cce4e94
Signed by: jahanson
SSH key fingerprint: SHA256:vy6dKBECV522aPAwklFM3ReKAVB086rT3oWwiuiFG7o
1 changed files with 7 additions and 9 deletions
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16
nixos/modules/nixos/services/zfs-nightly-snap/default.nix
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@ -3,9 +3,7 @@
lib, lib,
pkgs, pkgs,
... ...
}: }: let
let
cfg = config.mySystem.services.zfs-nightly-snap; cfg = config.mySystem.services.zfs-nightly-snap;
# Replaces/Creates and mounts a ZFS snapshot # Replaces/Creates and mounts a ZFS snapshot
@ -62,8 +60,7 @@ let
mount | grep "$BACKUP_DIRECTORY" mount | grep "$BACKUP_DIRECTORY"
''; '';
}; };
in in {
{
options.mySystem.services.zfs-nightly-snap = { options.mySystem.services.zfs-nightly-snap = {
enable = lib.mkEnableOption "ZFS nightly snapshot service"; enable = lib.mkEnableOption "ZFS nightly snapshot service";
@ -98,12 +95,12 @@ in
]; ];
# Adding script to system packages # Adding script to system packages
environment.systemPackages = [ resticSnapAndMount ]; environment.systemPackages = [resticSnapAndMount];
systemd = { systemd = {
# Timer for nightly snapshot # Timer for nightly snapshot
timers.zfs-nightly-snap = { timers.zfs-nightly-snap = {
wantedBy = [ "timers.target" ]; wantedBy = ["timers.target"];
timerConfig = { timerConfig = {
OnCalendar = cfg.startAt; OnCalendar = cfg.startAt;
Persistent = true; # Run immediately if we missed the last trigger time Persistent = true; # Run immediately if we missed the last trigger time
@ -115,9 +112,10 @@ in
serviceConfig = { serviceConfig = {
Type = "oneshot"; Type = "oneshot";
ExecStart = "${resticSnapAndMount}/bin/zfs-nightly-snap"; ExecStart = "${resticSnapAndMount}/bin/zfs-nightly-snap";
PrivateMounts = "no"; # We want to mount the snapshot to the system
}; };
requires = [ "zfs.target" ]; requires = ["zfs.target"];
after = [ "zfs.target" ]; after = ["zfs.target"];
}; };
}; };
}; };