91 lines
2.7 KiB
Nix
91 lines
2.7 KiB
Nix
{ pkgs, lib, config, ... }:
|
|
let
|
|
cfg = config.lab.backups;
|
|
|
|
borgmaticConfig = pkgs.writeTextFile {
|
|
name = "borgmatic-config.yaml";
|
|
|
|
text = lib.generators.toYAML { } {
|
|
source_directories = [ "/mnt/longhorn/persistent/longhorn-backup" ];
|
|
|
|
repositories = [
|
|
{
|
|
path = cfg.repoLocation;
|
|
label = "nfs";
|
|
}
|
|
{
|
|
path = "ssh://s6969ym3@s6969ym3.repo.borgbase.com/./repo";
|
|
label = "borgbase";
|
|
}
|
|
];
|
|
|
|
ssh_command = "${pkgs.openssh}/bin/ssh -i ${config.age.secrets."borgbase.pem".path} -o StrictHostKeychecking=no";
|
|
keep_daily = 7;
|
|
keep_weekly = 4;
|
|
keep_monthly = 12;
|
|
keep_yearly = -1;
|
|
encryption_passcommand = "${pkgs.coreutils}/bin/cat ${config.age.secrets."borg_passphrase".path}";
|
|
};
|
|
};
|
|
in
|
|
{
|
|
options.lab.backups = {
|
|
enable = lib.mkOption {
|
|
default = false;
|
|
type = lib.types.bool;
|
|
description = ''
|
|
Whether to enable backups of persistent data on this machine.
|
|
'';
|
|
};
|
|
|
|
repoLocation = lib.mkOption {
|
|
default = "/mnt/longhorn/persistent/nfs.borg";
|
|
type = lib.types.str;
|
|
description = ''
|
|
Location of the Borg repository to back up to.
|
|
'';
|
|
};
|
|
};
|
|
|
|
config = lib.mkIf cfg.enable {
|
|
environment.systemPackages = with pkgs; [ borgbackup ];
|
|
# Converted from:
|
|
# https://github.com/borgmatic-collective/borgmatic/tree/84823dfb912db650936e3492f6ead7e0e0d32a0f/sample/systemd
|
|
systemd.services.borgmatic = {
|
|
description = "borgmatic backup";
|
|
wants = [ "network-online.target" ];
|
|
after = [ "network-online.target" ];
|
|
unitConfig.ConditionACPower = true;
|
|
preStart = "${pkgs.coreutils}/bin/sleep 10s";
|
|
|
|
serviceConfig = {
|
|
Type = "oneshot";
|
|
Nice = 19;
|
|
CPUSchedulingPolicy = "batch";
|
|
IOSchedulingClass = "best-effort";
|
|
IOSchedulingPriority = 7;
|
|
IOWeight = 100;
|
|
Restart = "no";
|
|
LogRateLimitIntervalSec = 0;
|
|
Environment = "BORG_PASSPHRASE_FILE=${config.age.secrets."borg_passphrase".path}";
|
|
};
|
|
|
|
script = "${pkgs.systemd}/bin/systemd-inhibit --who=\"borgmatic\" --what=\"sleep:shutdown\" --why=\"Prevent interrupting scheduled backup\" ${pkgs.borgmatic}/bin/borgmatic --verbosity -2 --syslog-verbosity 1 -c ${borgmaticConfig}";
|
|
};
|
|
|
|
systemd.timers.borgmatic = {
|
|
description = "Run borgmatic backup";
|
|
wantedBy = [ "timers.target" ];
|
|
timerConfig = {
|
|
OnCalendar = "*-*-* 3:00:00";
|
|
Persistent = true;
|
|
RandomizedDelaySec = "1h";
|
|
};
|
|
};
|
|
|
|
age.secrets = {
|
|
"borg_passphrase".file = ../secrets/borg_passphrase.age;
|
|
"borgbase.pem".file = ../secrets/borgbase.pem.age;
|
|
};
|
|
};
|
|
}
|