restore genti-backup export dump into zfs ext4 volume

[sysadmin-cookbook] / recepies / ganeti / restore-to-zfs-vol.sh

diff --git a/recepies/ganeti/restore-to-zfs-vol.sh b/recepies/ganeti/restore-to-zfs-vol.sh
new file mode 100755 (executable)
index 0000000..91a9d83
--- /dev/null
+++ b/recepies/ganeti/restore-to-zfs-vol.sh
@@ -0,0 +1,59 @@
+#!/bin/sh -e 
+
+pool=workshop
+
+instance=koha.ffzg.hr
+size=60G
+instance=prod.vbz.ffzg.hr
+instance=bookreader.rot13.org
+
+if [ -z "$1" ] ; then
+       zfs list -r $pool/block
+       echo
+       test -e "/mnt/*" && df -h /mnt/* | grep -v aufs
+       echo
+       du -hcs /$pool/ganeti/export/* | cut -d/ -f1,5
+       exit 1
+else
+       instance=$1
+fi
+
+umount /mnt/$instance || true
+zfs destroy $pool/block/$instance || true
+
+zfs create -V $size -b 4k -s $pool/block/$instance
+
+test -d /mnt/$instance || mkdir /mnt/$instance
+
+wait_for() {
+       echo -n "waiting for $1 " 
+       while [ ! -e $1 ] ; do
+               echo -n .
+               sleep 1
+       done
+       echo " found"
+}
+
+wait_for /dev/zvol/$pool/block/$instance
+
+label=`echo $instance | cut -d. -f1`
+echo "label $label = $instance"
+
+time mkfs.ext4 -m 0 -L $label /dev/zvol/$pool/block/$instance 
+
+wait_for /dev/disk/by-label/$label
+
+mount /dev/disk/by-label/$label /mnt/$instance/
+cd /mnt/$instance/
+dump=`ls /$pool/ganeti/export/$instance/*.disk0*.snap`
+ls -alh $dump
+zpool iostat 2 | tee /dev/shm/$instance &
+pid_iostat=$!
+( while true; do zfs list $pool/block/$instance ; sleep 10 ; done ) &
+pid_list=$! 
+time restore rf $dump
+kill $pid_iostat
+kill $pid_list
+
+wc -l /dev/shm/$instance
+df -h /mnt/$instance