#!/bin/bash

set -euo pipefail

run-parts --exit-on-error -- /etc/zfs-snapshot-backup-pre.d


% for dataset in sorted(node.metadata.get('zfs/filesystems_with_backup_snapshots')):
if zfs get type ${dataset}@snapshot-backup >/dev/null 2>&1
then
    zfs destroy -f ${dataset}@snapshot-backup
fi

zfs snapshot ${dataset}@snapshot-backup

mkdir -p /mnt/backup-snapshot${node.metadata['zfs']['datasets'][dataset]['mountpoint']}
mount -t zfs ${dataset}@snapshot-backup /mnt/backup-snapshot${node.metadata['zfs']['datasets'][dataset]['mountpoint']}


% endfor
run-parts --exit-on-error -- /etc/zfs-snapshot-backup-post.d