#!/bin/bash
-# Copyright (C) 2016 Ian Kelling
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# Configure & run btrbk & related work on Ian's computers.
+# Copyright (C) 2024 Ian Kelling
-# http://www.apache.org/licenses/LICENSE-2.0
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# SPDX-License-Identifier: GPL-3.0-or-later
# todo: if we cancel in the middle of a btrfs send, then run again
[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
set -e; . /usr/local/lib/bash-bear; set +e
+shopt -s nullglob
usage() {
cat <<'EOF'
kd|frodo)
at_home=true
;;
- x2|x3|sy)
+ x2|x3|sy|so)
if [[ $(dig +short @10.2.0.1 -x 10.2.0.2 2>&1 ||:) == kd.b8.nz. ]] \
&& ip n show 10.2.0.1 | grep . &>/dev/null; then
+ # note: logic duplicated in 11-iank
at_home=true
elif ping -q -c1 -w1 hal.office.fsf.org &>/dev/null \
&& ip n show 192.168.0.26 | grep . &>/dev/null; then
mexit 0
fi
case $HOSTNAME in
- kw|kd|frodo|x2|x3|sy) : ;;
+ kw|kd|frodo|x2|x3|sy|so) : ;;
*)
die "error: no default targets for this host, use -t"
;;
fi
}
-add-wireless-target-h() {
- if ping -q -c1 -w1 $h.b8.nz &>/dev/null; then
- targets+=($h.b8.nz)
- elif ping -q -c1 -w1 ${h}w.b8.nz &>/dev/null; then
- targets+=(${h}w.b8.nz)
+add-wireless-target() {
+ local host
+ if [[ ! $1 ]]; then
+ set -- $h
fi
+ for host; do
+ # c = cabled, w = wireless
+ if ping -q -c1 -w1 ${host}c.b8.nz &>/dev/null; then
+ targets+=(${host}c.b8.nz)
+ elif ping -q -c1 -w1 $host.b8.nz &>/dev/null; then
+ targets+=($host.b8.nz)
+ elif ping -q -c1 -w1 ${host}w.b8.nz &>/dev/null; then
+ targets+=(${host}w.b8.nz)
+ fi
+ done
}
qconf() {
fi
cmd_arg=resume
preserve_arg=-p
- h=sy
- add-wireless-target-h
+ add-wireless-target sy so
fi
if [[ ! $cmd_arg ]]; then
wireless_home_hosts=(
x2
sy
+ so
)
for h in ${wireless_home_hosts[@]}; do
if [[ $HOSTNAME != "$h" ]]; then
- add-wireless-target-h
+ add-wireless-target
fi
done
elif $at_work; then
- targets+=(i.b8.nz)
+ targets+=(b8.nz)
for h in x2 x3 kw; do
if [[ $HOSTNAME == "$h" ]]; then
continue
fi
done
else
- targets+=(i.b8.nz)
+ targets+=(b8.nz)
fi
fi
if [[ $cmd_arg != run ]]; then
opts_show+=(cmd_arg=$cmd_arg)
fi
- if (( $opts_show >= 1 )); then
+ if (( ${#opts_show[@]} >= 1 )); then
first=true
for opt in ${opts_show[@]}; do
if $first; then
printf "%s" "$opt"
+ first=false
else
printf " %s" "$opt"
fi
fi
fi
-
+# todo: check if we have no snapshots yet, because I always want to run
+# archive instead of run. Likely, I should give an error unless a cli
+# override is passed. perhaps check-subvol-stale could give the error.
+# see the error message "no snapshots found" in that file.
if ! $fast; then
# if our mountpoints are from stale snapshots,
# it doesn't make sense to do a backup.
sshable=()
sshfail=()
+ remote_str_cmd="mkdir -p /mnt/root/btrbk /mnt/o/btrbk && \
+date +%z && \
+df --output=size,pcent / | tail -n1"
+
for h in ${targets[@]}; do
if $fast || $conf_only; then
# Use some typical values in this case
root_size=$(( 1024 * 1024 * 2000 )) #2tb
percent_used=10
zone=$(date +%z)
- elif remote_str=$(timeout -s 9 6 ssh root@$h "mkdir -p /mnt/root/btrbk /mnt/o/btrbk && date +%z && df --output=size,pcent / | tail -n1"); then
+ elif remote_str=$(timeout -s 9 6 ssh root@$h "$remote_str_cmd"); then
mapfile -t tmp_array <<<"$remote_str"
zone="${tmp_array[0]}"
IFS=" " read -r root_size percent_used <<<"${tmp_array[1]}"
min_root_kb=$(( 1024 * 1024 * 200 )) # 200 gb
tmp=$(( root_size < min_root_kb ))
if (( tmp )); then
+ e "warning: $h: root_size=$root_size < 200gb, perhaps it is booted to bootstrap vol. skipping for now"
continue
fi
fi
done
if [[ ! ${sshable[*]} ]] || { $force && [[ ${sshfail[*]} ]]; }; then
- die "failed to ssh to hosts: ${sshfail[*]}"
+ die "see skipped host warning above or sshfail hosts: ${sshfail[*]}"
else
if [[ ${sshfail[*]} ]]; then
ret=1
m ssh root@$tg 'btrbk-spread-wrap &>/dev/null </dev/null &'
fi
rsync --mkpath -a -f"- */" -f"+ *" /var/log/btrbk/ root@$tg:/var/log/btrbk/$tg
- ssh root@$tg /usr/local/bin/mail-backup-clean
+ cmd=/usr/local/bin/mail-backup-clean
+ ssh root@$tg "if test -x $cmd; then $cmd; fi"
done
if [[ $source ]]; then
rsync --mkpath -a -f"- */" -f"+ *" $source:/var/log/btrbk/ /var/log/btrbk/$source
iankelling.org / git / distro-setup / blobdiff