mirror of
https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
synced 2024-12-28 16:06:12 +01:00
78 lines
3.2 KiB
Nix
78 lines
3.2 KiB
Nix
# nixos-mailserver: a simple mail server
|
|
# Copyright (C) 2016-2018 Robin Raymond
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
|
|
{ config, pkgs, lib, ... }:
|
|
|
|
let
|
|
cfg = config.mailserver.borgbackup;
|
|
|
|
methodFragment = lib.optional (cfg.compression.method != null) cfg.compression.method;
|
|
autoFragment =
|
|
if cfg.compression.auto && cfg.compression.method == null
|
|
then throw "compression.method must be set when using auto."
|
|
else lib.optional cfg.compression.auto "auto";
|
|
levelFragment =
|
|
if cfg.compression.level != null && cfg.compression.method == null
|
|
then throw "compression.method must be set when using compression.level."
|
|
else lib.optional (cfg.compression.level != null) (toString cfg.compression.level);
|
|
compressionFragment = lib.concatStringsSep "," (lib.flatten [autoFragment methodFragment levelFragment]);
|
|
compression = lib.optionalString (compressionFragment != "") "--compression ${compressionFragment}";
|
|
|
|
encryptionFragment = cfg.encryption.method;
|
|
passphraseFile = lib.escapeShellArg cfg.encryption.passphraseFile;
|
|
passphraseFragment = lib.optionalString (cfg.encryption.method != "none")
|
|
(if cfg.encryption.passphraseFile != null then ''env BORG_PASSPHRASE="$(cat ${passphraseFile})"''
|
|
else throw "passphraseFile must be set when using encryption.");
|
|
|
|
locations = lib.escapeShellArgs cfg.locations;
|
|
name = lib.escapeShellArg cfg.name;
|
|
|
|
repoLocation = lib.escapeShellArg cfg.repoLocation;
|
|
|
|
extraInitArgs = lib.escapeShellArgs cfg.extraArgumentsForInit;
|
|
extraCreateArgs = lib.escapeShellArgs cfg.extraArgumentsForCreate;
|
|
|
|
cmdPreexec = lib.optionalString (cfg.cmdPreexec != null) cfg.cmdPreexec;
|
|
cmdPostexec = lib.optionalString (cfg.cmdPostexec != null) cfg.cmdPostexec;
|
|
|
|
borgScript = ''
|
|
export BORG_REPO=${repoLocation}
|
|
${cmdPreexec}
|
|
${passphraseFragment} ${pkgs.borgbackup}/bin/borg init ${extraInitArgs} --encryption ${encryptionFragment} || true
|
|
${passphraseFragment} ${pkgs.borgbackup}/bin/borg create ${extraCreateArgs} ${compression} ::${name} ${locations}
|
|
${cmdPostexec}
|
|
'';
|
|
in {
|
|
config = lib.mkIf config.mailserver.borgbackup.enable {
|
|
environment.systemPackages = with pkgs; [
|
|
borgbackup
|
|
];
|
|
|
|
systemd.services.borgbackup = {
|
|
description = "borgbackup";
|
|
unitConfig.Documentation = "man:borgbackup";
|
|
script = borgScript;
|
|
serviceConfig = {
|
|
User = cfg.user;
|
|
Group = cfg.group;
|
|
CPUSchedulingPolicy = "idle";
|
|
IOSchedulingClass = "idle";
|
|
ProtectSystem = "full";
|
|
};
|
|
startAt = cfg.startAt;
|
|
};
|
|
};
|
|
}
|