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Thorsten Spille 2023-02-18 12:01:11 +01:00
parent 8da28b51a5
commit 0763ec428e
1 changed files with 17 additions and 7 deletions
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24
bashclub-zsync/usr/bin/bashclub-zsync
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@ -8,6 +8,7 @@ PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
prog="$(basename $0)"
zfs=$(which zfs)
ssh=$(which ssh)
debug=
#### default config file, can be changed with parameter -c
conf=/etc/bashclub/zsync.conf
@ -46,6 +47,7 @@ while getopts "hc:" opt; do
case $opt in
h) usage 0 ;;
c) conf=$OPTARG ;;
d) debug=-v ;;
*) usage 1 ;;
esac
done
@ -79,12 +81,15 @@ fi
# query source datasets/subvols to replicate
IFS=$'\n'
for zvol in $($ssh $source "zfs get -H -o name,value,source -t filesystem,volume $tag"); do
if [[ "$(echo $zvol | cut -f2)" == "subvols" ]] && [[ $(echo $zvol | grep -E $subvol_source) ]]; then
name=$(echo $zvol | cut -f1)
if [[ "$(echo $zvol | cut -f2)" == "subvols" ]] && [[ $(echo $zvol | grep -E $subvol_source) ]]; then
echo "Including $name"
syncvols=("${syncvols[@]}" "$name")
elif [[ "$(echo $zvol | cut -f2)" == "all" ]];then
name=$(echo $zvol | cut -f1)
echo "Including $name"
syncvols=("${syncvols[@]}" "$name")
else
echo "Excluding $name"
fi
done
@ -92,18 +97,21 @@ done
for name in "${syncvols[@]}"; do
IFS=$' '
if [ $($zfs list -H -s creation -t snapshot $target/$name > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
# create parent datasets
prefix=""
for part in $(echo $target/$(echo $name | cut -d'/' -f1) | sed "s/\// /g"); do
if [ $($zfs list $prefix$part > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
$zfs create $prefix$part
echo "Creating $prefix$part"
$zfs create -p $prefix$part
fi
prefix="$prefix$part/"
done
# start initial replication
IFS=$'\n'
for snap in $($ssh $source "zfs list -H -t snapshot -o name -S creation $name | grep -E \"$snapshot_filter\" | tail -1"); do
$ssh $source "zfs send -pv $snap" | $zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot -dvF $target/$(echo $name | cut -d'/' -f1)
echo "Start initial replication: $snap => $target/$(echo $name | cut -d'/' -f1)"
$ssh $source "zfs send -p $debug $snap" | $zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot $debug -dF $target/$(echo $name | cut -d'/' -f1)
done
fi
@ -112,7 +120,8 @@ for name in "${syncvols[@]}"; do
last=$($ssh $source "zfs list -H -o name,guid -t snapshot $name | grep $guid | tail -1 | cut -f1")
IFS=$'\n'
for snap in $($ssh $source "zfs list -H -o name,guid -s creation -t snapshot $name | grep -E \"$snapshot_filter\" | grep --after-context=200 $guid | grep -v $guid | cut -f1"); do
$ssh $source "zfs send -v -i $last $snap" | zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot -Fv $target/$name
echo "Replicating delta of $last <=> $snap to $target/$name"
$ssh $source "zfs send $debug -i $last $snap" | zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot -F $debug $target/$name
last=$snap
done
@ -121,7 +130,8 @@ for name in "${syncvols[@]}"; do
guid=$($ssh $source "zfs list -H -o guid,name -S creation -t snapshot $name | grep $interval | cut -f1 | tail -1")
if [[ "$(echo -e "$guid" | sed 's/\n//g')" != "" ]]; then
for snap in $($zfs list -H -o name,guid -S creation -t snapshot $target/$name | grep $interval | grep --after-context=200 $guid | grep -v $guid | cut -f1); do
$zfs destroy $snap
echo "Deleting $snap"
$zfs destroy $debug $snap
done
fi
done