restructure backups

This commit is contained in:
2025-10-18 13:51:23 -05:00
parent f597616843
commit 643ab0958c
22 changed files with 385 additions and 262 deletions

View File

@@ -58,193 +58,6 @@ in {
config = lib.mkIf (cfg.enable && cfg.baks != {}) {
# create and or set perms for repo dirs
systemd.tmpfiles.rules = [
"d ${cfg.repo} 2770 root archives - -"
"d ${cfg.gameserver_repo} 2770 root archives - -"
];
# create servie to backup services
systemd.services.backups = {
description = "backup services with borg!";
path = [pkgs.borgbackup];
serviceConfig = {
Type = "oneshot";
User = "root";
Group = "archives"; # make perms shake out
UMask = "0007"; # make perms shake out
# the actual script borg is using
ExecStart = pkgs.writeShellScript "borg-backup" ''
backup() {
set -euo pipefail
export BORG_PASSPHRASE="$(cat ${cfg.passwd_file})"
export BORG_REPO="${cfg.repo}"
timestamp="$(date +'%Y-%m-%d_%H:%M:%S')"
mode=split
# init repo in needed
if ! borg info "$BORG_REPO" >/dev/null 2>&1; then
echo "Initializing Borg repo at $BORG_REPO"
borg init --encryption=repokey "$BORG_REPO"
fi
borg break-lock "$BORG_REPO" || true
echo "starting backup at $timestamp"
if [ "$mode" = "split" ]; then
# loop for each backup
${lib.concatStringsSep "\n\n" (lib.mapAttrsToList (
bak_name: bak_paths: ''
echo "------------ Backing up ${bak_name} ------------"
archive="$timestamp-${bak_name}"
echo "backing up: ${lib.concatStringsSep " " bak_paths.paths} $archive"
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lz4 \
"$BORG_REPO::$archive" \
${lib.concatStringsSep " " bak_paths.paths}
echo "pruning old backups for ${bak_name}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${bak_name}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::$archive\""
''
)
cfg.baks)}
exit 0
else
# flatten all paths from cfg.baks into one big list
all_paths="${
lib.concatStringsSep " "
(lib.flatten
(lib.mapAttrsToList (_: bak: bak.paths) cfg.baks))
}"
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lzma,9 \
"$BORG_REPO::$timestamp-${toString config.networking.hostName}" \
$all_paths
echo "pruning old backups for ${toString config.networking.hostName}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${toString config.networking.hostName}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::${toString config.networking.hostName}\""
exit 0
fi
}
start_time=$(date +%s)
backup
end_time=$(date +%s)
exec_time=$((end_time - start_time))
cpu_usage=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1"%"}')
echo ""
echo "backup stats:"
echo "exec time: $exec_time"
echo "cpu usage: $cpu_usage"
'';
};
};
# create timer to run backups daily
systemd.timers.backups = {
description = "daily borg backup timer";
wantedBy = ["timers.target"];
timerConfig = {
OnCalendar = "04:00";
Persistent = true;
};
};
# create servie to backup gameservers (back these up hourly)
systemd.services.gameserver_backups = {
description = "backup services with borg!";
path = [pkgs.borgbackup];
serviceConfig = {
Type = "oneshot";
User = "root";
Group = "archives"; # make perms shake out
UMask = "0007"; # make perms shake out
# the actual script borg is using
ExecStart = pkgs.writeShellScript "borg-gameserver_backup" ''
backup() {
set -euo pipefail
export BORG_PASSPHRASE="$(cat ${cfg.passwd_file})"
export BORG_REPO="${cfg.gameserver_repo}"
timestamp="$(date +'%Y-%m-%d_%H:%M:%S')"
# init repo in needed
if ! borg info "$BORG_REPO" >/dev/null 2>&1; then
echo "Initializing Borg repo at $BORG_REPO"
borg init --encryption=repokey "$BORG_REPO"
fi
borg break-lock "$BORG_REPO" || true
echo "starting backup at $timestamp"
# loop for each backup
${lib.concatStringsSep "\n\n" (lib.mapAttrsToList (
bak_name: bak_paths: ''
echo "------------ Backing up ${bak_name} ------------"
archive="$timestamp-${bak_name}"
echo "backing up: ${lib.concatStringsSep " " bak_paths.paths} $archive"
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lz4 \
"$BORG_REPO::$archive" \
${lib.concatStringsSep " " bak_paths.paths}
echo "pruning old backups for ${bak_name}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${bak_name}" \
--keep-hourly=24 \
--keep-daily=7 \
--keep-weekly=12 \
--keep-monthly=12
echo "backup run complete at \"$BORG_REPO::$archive\""
''
)
cfg.gameserver_baks)}
exit 0
}
start_time=$(date +%s)
backup
end_time=$(date +%s)
exec_time=$((end_time - start_time))
cpu_usage=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1"%"}')
echo ""
echo "backup stats:"
echo "exec time: $exec_time"
echo "cpu usage: $cpu_usage"
'';
};
};
# create timer to run backups daily
systemd.timers.gameserver_backups = {
description = "daily borg backup timer";
wantedBy = ["timers.target"];
timerConfig = {
OnCalendar = "*-*-* *:00:00"; # every hour, at :01 (one min after db dump)
Persistent = true;
};
};
# db backups
services.mysqlBackup = lib.mkIf config.services.mysql.enable {
# mc servers use this
@@ -265,9 +78,6 @@ in {
#databases = config.services.postgresql.ensureDatabases; # set to all databases defined in esure databases
};
# install borg binary
environment.systemPackages = with pkgs; [borgbackup tree];
# declare secret for repo password
sops.secrets = {
"borg_passwd" = {