rzerres/dsnap-sync
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snap-sync: enable remote syncing to selectable port

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Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>
This commit is contained in:
Ralf Zerres
2018-01-19 14:22:25 +01:00
parent 463e91af6a
commit 108a9efc1d
1 changed files with 38 additions and 17 deletions
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51
bin/snap-sync
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@@ -127,9 +127,9 @@ get_disk_infos () {
local fs_option local fs_option
# get mounted BTRFS infos # get mounted BTRFS infos
if [ "$(findmnt --noheadings --nofsroot --target / --output FSTYPE)" = "btrfs" ]; then if [ "$($ssh findmnt --noheadings --nofsroot --target / --output FSTYPE)" = "btrfs" ]; then
# root filesystem is never seen as valid target location # root filesystem is never seen as valid target location
exclude_uuid=$(findmnt --noheadings --nofsroot --types btrfs --target / --output UUID) exclude_uuid=$($ssh findmnt --noheadings --nofsroot --types btrfs --target / --output UUID)
disk_uuids=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $1}') disk_uuids=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $1}')
disk_targets=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $2}') disk_targets=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,TARGET --list | grep -v $exclude_uuid | awk '{print $2}')
fs_options=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,OPTIONS --list | grep -v $exclude_uuid | awk '{print $2}') fs_options=$($ssh findmnt --noheadings --nofsroot --types btrfs --output UUID,OPTIONS --list | grep -v $exclude_uuid | awk '{print $2}')
@@ -320,6 +320,10 @@ parse_params () {
donotify=false donotify=false
shift shift
;; ;;
-p|--port)
port=$2
shift 2
;;
--remote) --remote)
remote=$2 remote=$2
shift 2 shift 2
@@ -392,6 +396,10 @@ parse_params () {
break break
fi fi
;; ;;
--port=*)
port=${1#*=}
shift
;;
--remote=*) --remote=*)
remote=${1#*=} remote=${1#*=}
shift shift
@@ -451,7 +459,8 @@ parse_params () {
printf " disk TARGET: '%s'\n" "$target_cmdline" printf " disk TARGET: '%s'\n" "$target_cmdline"
printf " disk SUBVOLID: '%s'\n" "$subvolid_cmdline" printf " disk SUBVOLID: '%s'\n" "$subvolid_cmdline"
printf " disk Backupdir: '%s'\n" "$backupdir_cmdline" printf " disk Backupdir: '%s'\n" "$backupdir_cmdline"
printf " remote host: '%s'\n" "$ssh" printf " remote host: '%s'\n" "$remote"
printf " ssh options: '%s'\n" "$ssh"
printf "Snapper Descriptions\n" printf "Snapper Descriptions\n"
printf " backup finished: '%s'\n" "$snap_description_finished" printf " backup finished: '%s'\n" "$snap_description_finished"
@@ -574,7 +583,7 @@ run_config () {
eval "backup_dir_$i=$backupdir" eval "backup_dir_$i=$backupdir"
if [ "$verbose" ]; then if [ "$verbose" ]; then
if [ -n "$ssh" ];then if [ -n "$remote" ];then
printf "Backup-Path on remote %s: %s\n" "$remote" "$backup_root" printf "Backup-Path on remote %s: %s\n" "$remote" "$backup_root"
else else
printf "Backup-Path: %s\n" "$backup_root" printf "Backup-Path: %s\n" "$backup_root"
@@ -599,7 +608,7 @@ run_config () {
# the backup_location needs to be in a subvol ".snapshots" inside $selected_config (hardcoded in snapper) # the backup_location needs to be in a subvol ".snapshots" inside $selected_config (hardcoded in snapper)
snapper_target_config="snap-$selected_config" snapper_target_config="snap-$selected_config"
snapper_target_snapshot=$backup_root/$snapper_target_config/.snapshots/$snapper_new_id snapper_target_snapshot=$backup_root/$snapper_target_config/.snapshots/$snapper_new_id
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
printf "Will backup %s to %s\n" "$snapper_new_snapshot" "$snapper_target_snapshot/snapshot" | tee $PIPE printf "Will backup %s to %s\n" "$snapper_new_snapshot" "$snapper_target_snapshot/snapshot" | tee $PIPE
else else
printf "Will backup %s to %s\n" "$snapper_new_snapshot" "$remote":"$snapper_target_snapshot/snapshot" | tee $PIPE printf "Will backup %s to %s\n" "$snapper_new_snapshot" "$remote":"$snapper_target_snapshot/snapshot" | tee $PIPE
@@ -739,7 +748,7 @@ run_backup () {
else else
printf "dryrun: btrfs send %s -c %s %s | %s btrfs receive %s %s\n" \ printf "dryrun: btrfs send %s -c %s %s | %s btrfs receive %s %s\n" \
"$verbose_flag" "$snapper_sync_snapshot" "$snapper_new_snapshot" \ "$verbose_flag" "$snapper_sync_snapshot" "$snapper_new_snapshot" \
"$ssh" "$verbose_flag" "$snapper_target_snapshot" "$remote" "$verbose_flag" "$snapper_target_snapshot"
printf "dryrun: snapper --config %s delete %s\n" "$selected_config" "$snapper_sync_id" printf "dryrun: snapper --config %s delete %s\n" "$selected_config" "$snapper_sync_id"
fi fi
else else
@@ -759,14 +768,14 @@ run_backup () {
else else
printf "dryrun: btrfs send %s -c %s %s | %s btrfs receive %s %s\n" \ printf "dryrun: btrfs send %s -c %s %s | %s btrfs receive %s %s\n" \
"$verbose_flag" "$snapper_sync_snapshot" "$snapper_new_snapshot" \ "$verbose_flag" "$snapper_sync_snapshot" "$snapper_new_snapshot" \
"$ssh" "$verbose_flag" "$snapper_target_snapshot" "$remote" "$verbose_flag" "$snapper_target_snapshot"
printf "dryrun: snapper --config %s delete %s\n" "$selected_config" "$snapper_sync_id" printf "dryrun: snapper --config %s delete %s\n" "$selected_config" "$snapper_sync_id"
fi fi
fi fi
fi fi
# finally: send the snapper info metadata # finally: send the snapper info metadata
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
if [ ! "$dryrun" ]; then if [ ! "$dryrun" ]; then
cp "$snapper_new_info" "$snapper_target_snapshot" cp "$snapper_new_info" "$snapper_target_snapshot"
else else
@@ -775,9 +784,17 @@ run_backup () {
fi fi
else else
if [ ! "$dryrun" ]; then if [ ! "$dryrun" ]; then
if [ -n "$port" ]; then
rsync -avzq -e "ssh -p $port" "$snapper_new_info" "$remote:$snapper_target_snapshot"
else
rsync -avzq "$snapper_new_info" "$remote":"$snapper_target_snapshot" rsync -avzq "$snapper_new_info" "$remote":"$snapper_target_snapshot"
fi
else
if [ -n "$port" ]; then
cmd="rsync -avzq -e \"ssh -p $port\" $snapper_new_info $remote:$snapper_target_snapshot
else else
cmd="rsync -avzq $snapper_new_info $remote:$snapper_target_snapshot" cmd="rsync -avzq $snapper_new_info $remote:$snapper_target_snapshot"
fi
printf "dryrun: %s\n" "$cmd" printf "dryrun: %s\n" "$cmd"
fi fi
fi fi
@@ -862,7 +879,7 @@ run_finalize () {
if [ -n "$ret" ]; then if [ -n "$ret" ]; then
if [ "$ret" -eq "$snapper_new_id" ]; then if [ "$ret" -eq "$snapper_new_id" ]; then
cmd="snapper --verbose --config \"$snapper_target_config\" modify --description \"$snap_description_finished\" --userdata \"$target_userdata\" \"$snapper_new_id\"" cmd="snapper --verbose --config \"$snapper_target_config\" modify --description \"$snap_description_finished\" --userdata \"$target_userdata\" \"$snapper_new_id\""
if [ -n "$ssh" ]; then if [ -n "$remote" ]; then
ret=$($ssh "$cmd") ret=$($ssh "$cmd")
else else
ret=$(eval $cmd) ret=$(eval $cmd)
@@ -907,7 +924,7 @@ select_target_disk () {
local subvol='' local subvol=''
# print selection table # print selection table
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
printf "Selecting a mounted BTRFS device for backups on your local machine.\n" printf "Selecting a mounted BTRFS device for backups on your local machine.\n"
else else
printf "Selecting a mounted BTRFS device for backups on %s.\n" "$remote" printf "Selecting a mounted BTRFS device for backups on %s.\n" "$remote"
@@ -998,7 +1015,7 @@ set_config(){
local config_key=${2:-SUBVOLUME} local config_key=${2:-SUBVOLUME}
local config_value=${3:-/var/lib/snap-sync} local config_value=${3:-/var/lib/snap-sync}
if [ -n "$ssh" ]; then if [ -n "$remote" ]; then
$ssh sed -i \'"s#^\($config_key\s*=\s*\).*\$#\1\"$config_value\"#"\' $config $ssh sed -i \'"s#^\($config_key\s*=\s*\).*\$#\1\"$config_value\"#"\' $config
else else
sed -i "s#^\($config_key\s*=\s*\).*\$#\1\"$config_value\"#" $config sed -i "s#^\($config_key\s*=\s*\).*\$#\1\"$config_value\"#" $config
@@ -1037,6 +1054,10 @@ Options:
(e.g. -c "root home"). (e.g. -c "root home").
-n, --noconfirm Do not ask for confirmation for each configuration. Will still prompt for backup -n, --noconfirm Do not ask for confirmation for each configuration. Will still prompt for backup
--batch directory name on first backup" --batch directory name on first backup"
-r, --remote <address> Send the snapshot backup to a remote machine. The snapshot will be sent via ssh.
You should specify the remote machine's hostname or ip address. The 'root' user
must be permitted to login on the remote machine.
-p, --port <port> The remote port.
-s, --subvolid <subvlid> Specify the subvolume id of the mounted BTRFS subvolume to back up to. Defaults to 5. -s, --subvolid <subvlid> Specify the subvolume id of the mounted BTRFS subvolume to back up to. Defaults to 5.
-u, --uuid <UUID> Specify the UUID of the mounted BTRFS subvolume to back up to. Otherwise will prompt." -u, --uuid <UUID> Specify the UUID of the mounted BTRFS subvolume to back up to. Otherwise will prompt."
If multiple mount points are found with the same UUID, will prompt user." If multiple mount points are found with the same UUID, will prompt user."
@@ -1184,19 +1205,19 @@ parse_params $@
get_disk_infos get_disk_infos
if [ "$target_cmdline" != "none" ]; then if [ "$target_cmdline" != "none" ]; then
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
notify_info "Backup started" "Starting backups to '$target_cmdline' ..." notify_info "Backup started" "Starting backups to '$target_cmdline' ..."
else else
notify_info "Backup started" "Starting backups to '$target_cmdline' at $remote ..." notify_info "Backup started" "Starting backups to '$target_cmdline' at $remote ..."
fi fi
elif [ "$uuid_cmdline" != "none" ]; then elif [ "$uuid_cmdline" != "none" ]; then
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
notify_info "Backup started" "Starting backups to $uuid_cmdline..." notify_info "Backup started" "Starting backups to $uuid_cmdline..."
else else
notify_info "Backup started" "Starting backups to $uuid_cmdline at $remote..." notify_info "Backup started" "Starting backups to $uuid_cmdline at $remote..."
fi fi
else else
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
notify_info "Backup started" "Starting backups. Use command line menu to select disk." notify_info "Backup started" "Starting backups. Use command line menu to select disk."
else else
notify_info "Backup started" "Starting backups. Use command line menu to select disk on $remote." notify_info "Backup started" "Starting backups. Use command line menu to select disk on $remote."
@@ -1207,7 +1228,7 @@ fi
select_target_disk select_target_disk
printf "\nYou selected the disk with UUID %s (subvolid=%s).\n" "$selected_uuid" "$selected_subvol" | tee $PIPE printf "\nYou selected the disk with UUID %s (subvolid=%s).\n" "$selected_uuid" "$selected_subvol" | tee $PIPE
if [ -z "$ssh" ]; then if [ -z "$remote" ]; then
printf "The disk is mounted at %s.\n" "$selected_target" | tee $PIPE printf "The disk is mounted at %s.\n" "$selected_target" | tee $PIPE
else else
printf "The disk is mounted at %s:%s.\n" "$remote" "$selected_target" | tee $PIPE printf "The disk is mounted at %s:%s.\n" "$remote" "$selected_target" | tee $PIPE