mirror of
https://asciireactor.com/o4data/zfs-backup.git
synced 2024-11-21 12:25:05 +00:00
295 lines
7.1 KiB
Bash
Executable File
295 lines
7.1 KiB
Bash
Executable File
#!/usr/bin/env sh
|
|
|
|
# requires zfs, pv, ssh
|
|
|
|
nodes_file="nodes.txt"
|
|
### nodes.txt
|
|
# <origin host> <user> <ssh port> <timezone> <compressed flag>
|
|
# <mirror 1 host> <user> <ssh port> <zfs root> <send speed>
|
|
# <mirror 2 host> <user> <ssh port> <zfs root> <send speed>
|
|
# ...
|
|
|
|
datasets_file="datasets.txt"
|
|
### datasets.txt
|
|
# <dataset 1> [options]
|
|
# <dataset 2> [options]
|
|
# <dataset 3> [options]
|
|
# ...
|
|
# recognized options: nosend nosnap(shot) remotezfs=<remote dset name>
|
|
|
|
if [ ! -f $nodes_file ]; then echo "No nodes specified."; exit 2; fi
|
|
if [ ! -f $datasets_file ]; then echo "No datasets specified."; exit 3; fi
|
|
|
|
ZFS_SEND_OPTS="-pRLe"
|
|
ZFS_SNAPSHOT_OPTS="-r"
|
|
ZFS_RECV_OPTS="-vsu"
|
|
SSH_SEND_OPTS="-Ti ~/.ssh/id_rsa"
|
|
DEFAULT_SPEED="20M"
|
|
|
|
read LOCAL_HOST LOCAL_USER LOCAL_PORT LOCAL_TZ SEND_COMPRESSED < $nodes_file
|
|
|
|
ORIGIN_PERMS="send,snapshot,hold"
|
|
MIRROR_PERMS="compression,receive,create,mount,mountpoint,readonly,jailed"
|
|
|
|
SEND_DATASETS=""
|
|
SNAPSHOT_DATASETS=""
|
|
|
|
debug()
|
|
{
|
|
if [ "$ZB_VERBOSE" = "TRUE" ]; then
|
|
echo $@
|
|
fi
|
|
}
|
|
|
|
run_send_recv()
|
|
{
|
|
ssh_cmd="ssh $SSH_SEND_OPTS -o port=$port $user@$addr"
|
|
pv_cmd="pv -eL ${speed:-$DEFAULT_SPEED}"
|
|
if [ "$ZB_TEST_MODE" = "TRUE" ]; then
|
|
echo "$send_cmd | $pv_cmd | $ssh_cmd $recv_cmd"
|
|
else
|
|
$send_cmd | $pv_cmd | $ssh_cmd $recv_cmd
|
|
fi
|
|
}
|
|
|
|
run_snapshot()
|
|
{
|
|
if [ "$ZB_TEST_MODE" = "TRUE" ]; then
|
|
echo zfs snapshot $ZFS_SNAPSHOT_OPTS $dset@$snapid
|
|
else
|
|
zfs snapshot $ZFS_SNAPSHOT_OPTS $dset@$snapid
|
|
fi
|
|
}
|
|
|
|
run_allow()
|
|
{
|
|
if [ "$ZB_TEST_MODE" = "TRUE" ]; then
|
|
echo zfs allow -u $LOCAL_USER $ORIGIN_PERMS $dset
|
|
else
|
|
zfs allow -u $LOCAL_USER $ORIGIN_PERMS $dset
|
|
fi
|
|
}
|
|
|
|
run_remote()
|
|
{
|
|
ssh_cmd="ssh $SSH_SEND_OPTS -o port=$port $user@$addr"
|
|
if [ "$ZB_TEST_MODE" = "TRUE" ]; then
|
|
echo "\`$ssh_cmd $remote_cmd\`"
|
|
else
|
|
$ssh_cmd $remote_cmd
|
|
fi
|
|
}
|
|
|
|
set_compression() {
|
|
case "$SEND_COMPRESSED" in
|
|
[tTyY]*) ZFS_SEND_OPTS="$ZFS_SEND_OPTS -c"
|
|
debug "Enabled send as compressed datasets." ;;
|
|
esac
|
|
}
|
|
|
|
populate_datasets()
|
|
{
|
|
while read dset dataset_options; do
|
|
case "$dset" in
|
|
\#*) continue;;
|
|
esac
|
|
|
|
snapshot_dataset="yes"
|
|
send_dataset="yes"
|
|
for option in $dataset_options; do
|
|
case "$option" in
|
|
"nosnap"* )
|
|
snapshot_dataset=""
|
|
;;
|
|
"nosend"* )
|
|
send_dataset=""
|
|
;;
|
|
"remotezfs="*)
|
|
remotezfs=`echo $option|cut -d'=' -f2`
|
|
dset="$dset:$remotezfs"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if [ $send_dataset ]; then
|
|
SEND_DATASETS="$SEND_DATASETS $dset"
|
|
debug "Enabled send for $dset."
|
|
fi
|
|
if [ $snapshot_dataset ]; then
|
|
SNAPSHOT_DATASETS="$SNAPSHOT_DATASETS $dset"
|
|
debug "Enabled snapshot for $dset."
|
|
fi
|
|
done < datasets.txt
|
|
}
|
|
|
|
list_datasets()
|
|
{
|
|
for dset in $SEND_DATASETS; do
|
|
dset=`echo $dset|cut -d: -f1`
|
|
zfs list -H $dset
|
|
done
|
|
}
|
|
|
|
list_remote_datasets() {
|
|
while read addr user port zroot speed; do
|
|
echo "=== $user@$addr $zroot ==="
|
|
if [ "$zroot" ]; then
|
|
case "$zroot" in
|
|
*"/") ;;
|
|
*) zroot="$zroot/" ;;
|
|
esac
|
|
fi
|
|
remote_cmd="
|
|
sh -c 'for dset in $SEND_DATASETS; do
|
|
dset=`echo \\$dset|cut -d: -f2`
|
|
zfs list -H $zroot\$dset;
|
|
done'
|
|
"
|
|
run_remote
|
|
done < sendnodes.tmp
|
|
}
|
|
|
|
get_latest_snapshot()
|
|
{
|
|
zfs list -t snapshot $dset | tail -n1 | cut -d'@' -f2 | cut -d' ' -f 1
|
|
}
|
|
|
|
get_latest_remote_snapshot()
|
|
{
|
|
if [ $zroot ]; then
|
|
case "$zroot" in
|
|
*"/") ;;
|
|
*) zroot="$zroot/" ;;
|
|
esac
|
|
fi
|
|
list_cmd="zfs list -t snapshot $zroot$rset"
|
|
remote_cmd="$list_cmd|tail -n1|cut -d'@' -f2|cut -d' ' -f 1"
|
|
run_remote
|
|
}
|
|
|
|
zfs_allow_origin()
|
|
{
|
|
for dset in $SEND_DATASETS; do
|
|
dset=`echo $dset|cut -d: -f1`
|
|
run_allow
|
|
done
|
|
}
|
|
|
|
zfs_allow_mirrors()
|
|
{
|
|
while read addr user port zroot speed; do
|
|
echo "=== $user@$addr $zroot ==="
|
|
if [ "$zroot" ]; then
|
|
case "$zroot" in
|
|
*"/") ;;
|
|
*) zroot="$zroot/" ;;
|
|
esac
|
|
fi
|
|
remote_cmd="
|
|
for dset in $SEND_DATASETS; do
|
|
dset=`echo \\$dset|cut -d: -f2`
|
|
zfs allow -u $user $MIRROR_PERMS $zroot\$dset
|
|
done
|
|
"
|
|
run_remote
|
|
done < sendnodes.tmp
|
|
}
|
|
|
|
create_snapshots()
|
|
{
|
|
snapid="`date -I`-`date +%s`-$LOCAL_TZ"
|
|
for dset in $SNAPSHOT_DATASETS; do
|
|
run_snapshot
|
|
debug "Created snapshot $dset@$snapid."
|
|
done
|
|
}
|
|
|
|
send_latest()
|
|
{
|
|
while read addr user port zroot speed; do
|
|
echo "=== $user@$addr $zroot ==="
|
|
if [ "$zroot" ]; then
|
|
case "$zroot" in
|
|
*"/") ;;
|
|
*) zroot="$zroot/" ;;
|
|
esac
|
|
fi
|
|
for dset in $SEND_DATASETS; do
|
|
rset=`echo $dset|cut -d: -f2`
|
|
dset=`echo $dset|cut -d: -f1`
|
|
debug "Processing $dset (remote $rset)."
|
|
snap1=`get_latest_snapshot`
|
|
send_cmd="zfs send $ZFS_SEND_OPTS $dset@$snap1"
|
|
recv_cmd="zfs recv $ZFS_RECV_OPTS $zroot$rset"
|
|
run_send_recv
|
|
done
|
|
done < sendnodes.tmp
|
|
}
|
|
|
|
send_increment()
|
|
{
|
|
while read addr user port zroot speed; do
|
|
echo "=== $user@$addr $zroot ==="
|
|
if [ "$zroot" ]; then
|
|
case "$zroot" in
|
|
*"/") ;;
|
|
*) zroot="$zroot/" ;;
|
|
esac
|
|
fi
|
|
for dset in $SEND_DATASETS; do
|
|
rset=`echo $dset|cut -d: -f2`
|
|
dset=`echo $dset|cut -d: -f1`
|
|
snap1=`get_latest_snapshot`
|
|
snap0=`get_latest_remote_snapshot`
|
|
send_cmd="zfs send $ZFS_SEND_OPTS -i $dset@$snap0 $dset@$snap1"
|
|
recv_cmd="zfs recv $ZFS_RECV_OPTS $zroot$rset"
|
|
run_send_recv
|
|
done
|
|
done < sendnodes.tmp
|
|
}
|
|
|
|
|
|
################################### MAIN ####################################
|
|
|
|
set -- `getopt "tvl:" "$@"` || {
|
|
echo "Usage: `basename $0` [-tvl] [command]" 1>&2
|
|
exit 1
|
|
}
|
|
|
|
while :; do
|
|
case "$1" in
|
|
-t)
|
|
ZB_TEST_MODE=TRUE
|
|
debug "Enabled test mode."
|
|
;;
|
|
-v)
|
|
ZB_VERBOSE=TRUE
|
|
ZFS_SEND_OPTS="$ZFS_SEND_OPTS -v"
|
|
# Current on by default.
|
|
# ZFS_RECV_OPTS="$ZFS_RECV_OPTS -v"
|
|
debug "Enabled verbose mode."
|
|
;;
|
|
--) shift; break ;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
tail -n +2 $nodes_file|grep -v '^#' > sendnodes.tmp
|
|
|
|
set_compression
|
|
populate_datasets
|
|
|
|
### Command
|
|
case "$1" in
|
|
list ) list_datasets ;;
|
|
list-remote ) list_remote_datasets ;;
|
|
snapshot ) create_snapshots ;;
|
|
#configure-mirrors ) zfs_allow_mirrors ;;
|
|
configure ) zfs_allow_origin ;;
|
|
mirror-reset ) send_latest ;;
|
|
mirror-increment ) send_increment ;;
|
|
#mirror-prune ) send_increment_with_F ;;
|
|
esac
|
|
|
|
rm sendnodes.tmp
|