update bin commands

[ganeti-extstorage-zfs] / etc / defaults.sh

# debugging options
#set -x
#set >&2

dir=/usr/share/ganeti/extstorage/zfs/

host_config=$dir/etc/`hostname -s`.sh
test -e $host_config && . $host_config

# parameters for zfs create, by default
# -s    sparse
# -b 4k block size sutable for ext4 filesystem which ganeti uses
# lz4   compression with low cpu operhead which always helps
test -z "$EXTP_CREATE" && EXTP_CREATE="-s -b 4k -o compression=lz4"

# on zfs destroy remove dependent snapshots
test -z "$EXTP_DESTROY" && EXTP_DESTROY="-R"

# emulate VG configured in cluster for wrapper scripts in sbin
test -z "$EXTP_VG" && EXTP_VG='ffzgvg'

# zfs pool and file system (existing) where to create block devices
test -z "$EXTP_ZFS" && EXTP_ZFS=tmp500g/$EXTP_VG

export VOL_NAME

zfs_get() {
zfs get $1 -o value -p -H $EXTP_ZFS/$VOL_NAME
}