backup-zfs-on-ftp.sh

#!/usr/bin/env sh

FTP_HOST='ftpback-rbx4-105.ovh.net'
ZFS_POOL='zroot'
GPG_USERID='0xA8331351'

for DIR in $(df -t zfs | awk '/\// {print $6}'); do
    DIR_NAME=$(echo $DIR | sed 's#^/$#slash#' | sed 's#/##'| sed 's#/#_#g')
    zfs set snapdir=visible $ZFS_POOL$DIR
    if [ -d "$DIR/.zfs/snapshot/daily.0" ]; then
ftp $FTP_HOST <<- EOF
binary
put "| tar -cf - $DIR/.zfs/snapshot/daily.0 | gpg --batch -e -r $GPG_USERID -a -o -" /$DIR_NAME.gpg
exit
EOF
    fi
    zfs set snapdir=hidden $ZFS_POOL$DIR
done