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{ config, pkgs, lib, ... }:
with lib;
let
makeBackup = pkgs.writeScript "make-backup" ''
#!${pkgs.bash}/bin/bash
set -e
umask 0077
DBDUMPDIR=`mktemp -d`
pushd $DBDUMPDIR
${config.services.mysql.package}/bin/mysqldump --single-transaction flarum > flarum.sql
${pkgs.sudo}/bin/sudo -u mattermost ${config.services.postgresql.package}/bin/pg_dump mattermost > mattermost.sql
${pkgs.gnutar}/bin/tar cf - --exclude "/var/lib/gitea/repositories/*/*.git/archives" /etc/nixos /var/lib/gitea flarum.sql mattermost.sql | \
${pkgs.bzip2}/bin/bzip2 | \
${pkgs.gnupg}/bin/gpg --symmetric --batch --passphrase-file /etc/nixos/secret/backup-passphrase | \
${pkgs.rclone}/bin/rclone rcat --config /etc/nixos/secret/rclone.conf dropbox:backup-`date +%F`.tar.bz2.gpg
popd
rm -rf $DBDUMPDIR
echo Backup done
'';
cfg = config.services.mlabs-backup;
in
{
options.services.mlabs-backup = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable backups";
};
};
config = mkIf cfg.enable {
systemd.services.mlabs-backup = {
description = "M-Labs backup";
serviceConfig = {
Type = "oneshot";
User = "root";
Group = "root";
ExecStart = "${makeBackup}";
};
};
systemd.timers.mlabs-backup = {
description = "M-Labs backup";
wantedBy = [ "timers.target" ];
timerConfig.OnCalendar = "weekly";
};
};
}