it-infra/nixbld-etc-nixos/backup-module.nix

70 lines
2.0 KiB
Nix
Raw Normal View History

2020-06-20 17:54:21 +08:00
{ config, pkgs, lib, ... }:
with lib;
let
2023-08-31 14:15:53 +08:00
excludePaths = [
"/var/lib/gitea/repositories/*/*.git/archives"
"/var/lib/gitea/data/repo-archive"
"/var/lib/gitea/data/indexers"
"/var/vmail/m-labs.hk/js"
"/var/lib/afws/.cache"
"/var/lib/mattermost/data/2019*"
"/var/lib/mattermost/data/2020*"
"/var/lib/mattermost/data/2021*"
"/var/lib/mattermost/data/2022*"
];
2020-06-20 17:54:21 +08:00
makeBackup = pkgs.writeScript "make-backup" ''
#!${pkgs.bash}/bin/bash
set -e
umask 0077
2020-07-27 20:28:30 +08:00
FILENAME=backup-`date +%F`.tar.bz2.gpg
2020-06-20 17:54:21 +08:00
DBDUMPDIR=`mktemp -d`
pushd $DBDUMPDIR
2023-07-07 17:29:24 +08:00
${config.services.mysql.package}/bin/mysqldump --user=root --single-transaction flarum > flarum.sql
2020-06-20 17:54:21 +08:00
${pkgs.sudo}/bin/sudo -u mattermost ${config.services.postgresql.package}/bin/pg_dump mattermost > mattermost.sql
2021-11-25 00:15:09 +08:00
${pkgs.sudo}/bin/sudo -u rt ${config.services.postgresql.package}/bin/pg_dump rt5 > rt.sql
2020-06-20 17:54:21 +08:00
2023-08-31 14:15:53 +08:00
${pkgs.gnutar}/bin/tar cf - ${lib.concatMapStringsSep " " (p: "--exclude \"${p}\"") excludePaths} /etc/nixos /var/vmail /var/lib/hedgedoc /var/lib/gitea /var/lib/afws /var/lib/mattermost/data flarum.sql mattermost.sql rt.sql | \
2020-06-20 17:54:21 +08:00
${pkgs.bzip2}/bin/bzip2 | \
${pkgs.gnupg}/bin/gpg --symmetric --batch --passphrase-file /etc/nixos/secret/backup-passphrase > /home/backupdl/$FILENAME
2020-06-20 17:54:21 +08:00
popd
rm -rf $DBDUMPDIR
chown backupdl.users /home/backupdl/$FILENAME
2020-06-20 17:54:21 +08:00
echo Backup done
'';
cfg = config.services.mlabs-backup;
in
{
options.services.mlabs-backup = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable backups";
};
};
config = mkIf cfg.enable {
systemd.services.mlabs-backup = {
description = "M-Labs backup";
serviceConfig = {
Type = "oneshot";
User = "root";
Group = "root";
ExecStart = "${makeBackup}";
};
};
systemd.timers.mlabs-backup = {
description = "M-Labs backup";
wantedBy = [ "timers.target" ];
timerConfig.OnCalendar = "tuesday,friday *-*-* 08:00:00";
2020-06-20 17:54:21 +08:00
};
};
}