dry_run=false # mostly for testing
rate_limit=no
verbose=true; verbose_arg=-v
+force=false
if [[ $INVOCATION_ID ]]; then
# INVOCATION_ID means running as a systemd service. we cant show progress in this case,
# but if we pass the arg, it will insert mbuffer into the command.
early=false
cron=false
fast=false
-kd_spread_maybe=false
+kd_spread=false
orig_args=("$@")
-temp=$(getopt -l cron,fast,pull-reexec,help 23ceikl:m:npqrs:t:vh "$@") || usage 1
+temp=$(getopt -l cron,fast,pull-reexec,help 23cefikl:m:npqrs:t:vh "$@") || usage 1
eval set -- "$temp"
while true; do
case $1 in
-c) conf_only=true ;;
# quit early, just btrbk, no extra remounting etc.
-e) early=true ;;
+ -f) force=true ;;
# skip various checks. when we run twice in a row for
# switch mail-host, no need to repeat the same checks again.
--fast) fast=true ;;
-i) incremental_strict=true ;;
- # note this implies resume
- -k) kd_spread_maybe=true ;;
+ # note this implies resume, cron and -p
+ -k) kd_spread=true ;;
# bytes per second, suffix k m g
-l) rate_limit=$2; shift ;;
# Comma separated mountpoints to backup. This has defaults set below.
-m) IFS=, mountpoints=($2); unset IFS; shift ;;
-n) dry_run=true ;;
- # hide progress
- -p) progress_arg= ;;
+ # preserve existing snapshots and backups
+ -p) preserve_arg=-p ;;
# internal option for rerunning under newer SOURCE_HOST version.
--pull-reexec) pull_reexec=true;;
# quiet
shift
done
-if $kd_spread_maybe; then
- if [[ $1 && $1 != resume ]]; then
+cmd_arg="$1"
+
+if $kd_spread; then
+ if [[ $cmd_arg && $cmd_arg != resume ]]; then
die "dont pass -k without resume or empty run arg"
fi
+ if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
+ die "something went wrong, -k not meant to be run on MAIL_HOST"
+ fi
cmd_arg=resume
+ preserve_arg=-p
+ cron=true
fi
-
-cmd_arg=${1:-run}
+if [[ ! $cmd_arg ]]; then
+ cmd_arg=run
+fi
std_preserve="36h 14d 8w 24m"
# targets, plus any given on the command line.
-
-kd_spread=false
# set default targets
if [[ ! -v targets && ! $source ]]; then
- if $cron; then
- if [[ $HOSTNAME != "$MAIL_HOST" ]]; then
- if $kd_spread_maybe && [[ $HOSTNAME == kd && $MAIL_HOST == x3 ]]; then
- if ping -q -c1 -w1 x3.office.fsf.org &>/dev/null; then
- work_host=x3.office.fsf.org
- elif ping -q -c1 -w1 x3wg.b8.nz &>/dev/null; then
- work_host=x3wg.b8.nz
- fi
- if [[ $work_host ]]; then
- source_state="$(ssh $work_host cat /a/bin/bash_unpublished/source-state)"
- eval "$source_state"
- if [[ $MAIL_HOST == x3 ]]; then
- kd_spread=true
- else
- echo "MAIL_HOST=$MAIL_HOST, nothing to do"
- mexit 0
- fi
- else
- echo "MAIL_HOST=$MAIL_HOST, nothing to do"
- mexit 0
- fi
- else
- echo "MAIL_HOST=$MAIL_HOST, nothing to do"
- mexit 0
- fi
- fi
+ if $cron && ! $kd_spread && [[ $HOSTNAME != "$MAIL_HOST" ]]; then
+ echo "MAIL_HOST=$MAIL_HOST, nothing to do"
+ mexit 0
fi
at_work=false
targets+=(x3wg.b8.nz)
fi
fi
- # temporarily disabled while doing recovery
- # for h in frodo kd; do
- for h in kd; do
- if [[ $HOSTNAME == "$h" ]]; then
- continue
- fi
- targets+=($h.b8.nz)
- done
- for h in x2 sy; do
- if [[ $HOSTNAME == "$h" ]]; then
- continue
- fi
- 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)
+ if [[ $HOSTNAME != kd ]]; then
+ targets+=(kd.b8.nz)
+ fi
+ wireless_home_hosts=(
+ x2
+ sy
+ )
+ for h in ${wireless_home_hosts[@]}; do
+ if [[ $HOSTNAME != "$h" ]]; then
+ 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)
+ fi
fi
done
elif $at_work; then
- if ping -q -c1 -w1 iank.vpn.office.fsf.org &>/dev/null; then
- targets+=(iank.vpn.office.fsf.org)
- else
- targets+=(i.b8.nz)
- fi
+ targets+=(i.b8.nz)
for h in x2 x3 kw; do
if [[ $HOSTNAME == "$h" ]]; then
continue
esac
fi
-if $verbose; then
- printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
-fi
-
-
-if [[ -v targets ]]; then
- echo "targets: ${targets[*]}"
-fi
-
-if [[ $source ]]; then
- echo "source: $source"
-fi
-
if [[ ${mountpoints[0]} ]]; then
for mp in ${mountpoints[@]}; do
if [[ -e /nocow/btrfs-stale/$mp ]]; then
prospective_mps+=(/o)
fi
if [[ $source_host == "$HOST2" ]]; then
- prospective_mps+=(/a /ar /qr /q)
+ prospective_mps+=(/a /ar /qr /qd /q)
fi
else
if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
prospective_mps+=(/o)
fi
if [[ $HOSTNAME == "$HOST2" ]]; then
- prospective_mps+=(/a /ar /qr /q)
+ prospective_mps+=(/a /ar /qr /qd /q)
fi
if $kd_spread; then
- prospective_mps=(/a /ar /o /qr /q)
+ prospective_mps=(/a /ar /o /qr /qd /q)
fi
fi
# note: put q last just in case its specific retention options were to
die didnt get mountpoint arg and had no defaults
fi
-echo "mountpoints: ${mountpoints[*]}"
-
##### end command line parsing ########
+#### begin pre-checks #####
+
# todo: this has a timing problem, since btrbk.timer could activate the service after this check.
if ! $fast && [[ $source ]]; then
if [[ $(ssh $source ps --no-headers -o comm 1) == systemd ]]; then
fi
fi
+if ! command -v btrbk &>/dev/null; then
+ die "error: no btrbk binary found"
+fi
+
+
+#### end pre-checks #####
+
+mkdir -p /var/log/btrbk
+# The journal doesnt go back to my oldest backups, and I've found myself
+# wanting older logs. Not going to bother expiring old logs, since it is
+# fine if they go back years.
+log_path=/var/log/btrbk/$(date +%F_%T%:::z).log
+echo copying output to $log_path
+exec &> >(ts "%F %T" | tee -a $log_path)
+
+
+if $verbose; then
+ printf "$pre options: conf_only=%s\ndry_run=%s\nrate_limit=%s\nverbose=%s\ncmd_arg=%s" "$conf_only" "$dry_run" "$rate_limit" "$verbose" "$cmd_arg"
+fi
+
+if [[ -v targets ]]; then
+ echo "targets: ${targets[*]}"
+fi
+
+if [[ $source ]]; then
+ echo "source: $source"
+fi
+
+echo "mountpoints: ${mountpoints[*]}"
+
+
+
# pull_reexec stops us from getting into an infinite loop if there is some
# kind of weird problem
pulla=false
fi
-if ! command -v btrbk &>/dev/null; then
- die "error: no btrbk binary found"
-fi
-
if ! $fast; then
# if our mountpoints are from stale snapshots,
# it doesn't make sense to do a backup.
# which is good enough.
#
# This is a separate ssh because the command can fail and thatis ok.
- if $cron; then
+ if $cron && ! $force; then
locked=false
if lock_info=$(timeout -s 9 6 ssh $h DISPLAY=:0 xscreensaver-command -time); then
if [[ $lock_info != *non-blanked* ]]; then
# if one disk had less space.
# for now, keeping them equal.
snapshot_preserve $std_preserve
-snapshot_preserve_min 2h
+snapshot_preserve_min 6h
snapshot_dir btrbk
# so, total backups = ~58
target_preserve $std_preserve
-target_preserve_min 2h
+target_preserve_min 6h
# i tried this when investigating: clone no source subvolume found error
#incremental_prefs sro:1 srn:1 sao san:1 aro:1 arn:1
if [[ $ret == 0 ]]; then
for tg in ${targets[@]}; do
- :
- #ssh root@$tg /a/exe/mail-backup-clean
+ h=$(ssh $tg hostname)
+ if [[ $h == kd && $HOSTNAME == x3 && $HOSTNAME == "$MAIL_HOST" ]]; then
+ ssh root$tg systemctl --no-block start btrbk-spread
+ fi
+ rsync -a -f"- */" -f"+ *" /var/log/btrbk/ root@$tg:/var/log/btrbk/$tg
+ ssh root@$tg /usr/local/bin/mail-backup-clean
done
+ if [[ $source ]]; then
+ rsync -a -f"- */" -f"+ *" $source:/var/log/btrbk/ /var/log/btrbk/$source
+ fi
fi
mexit $ret
iankelling.org / git / distro-setup / blobdiff