restic-bachup.sh

#!/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

# Defining variables
TIMESTAMP=$(date '+%Y%m%d%H%M%S')
PID=$$
STATUSFILE=/var/run/restic_backup_status
STDERR=/var/log/restic_backup-error.log
STDOUT=/var/log/restic_backup-status.log

# What should be backed up
if [ "$1" == "--wife" ]; then
  TAG=wife
elif [ "$1" == "--full"  ]; then
  TAG=full
else
  TAG=kervyn
fi


# Checking if backup is already running
if [ -f $STATUSFILE ]; then
  echo "Backup is already running"
  exit 99
fi

# Write Backupinformation
cat << __EOF__ > $STATUSFILE
$PID
Started: $TIMESTAMP
__EOF__

# Creating snapshots and mount it
lvcreate -L100G -s -n $TIMESTAMP-snap-lvsrv /dev/vg0/lvsrv >/dev/null
mkdir -p /mnt/lv-snapshots/snap-lvsrv
mount -o ro /dev/vg0/$TIMESTAMP-snap-lvsrv /mnt/lv-snapshots/snap-lvsrv

lvcreate -L100G -s -n $TIMESTAMP-snap-lvtimemashine /dev/vg0/lvtimemashine >/dev/null
mkdir -p /mnt/lv-snapshots/snap-lvtimemashine
mount -o ro /dev/vg0/$TIMESTAMP-snap-lvtimemashine /mnt/lv-snapshots/snap-lvtimemashine

# Backup
/opt/restic --repo rclone:hetzner-storagebox-europa: \
  --tag ${TAG} --json --compression=max \
  --password-file=/etc/restic/resticpw backup \
  --files-from=/etc/restic/${TAG}.include \
  --exclude-file=/etc/restic/${TAG}.exclude > $STDOUT 2> $STDERR

# Unmouning and removing snapshots
umount /mnt/lv-snapshots/snap-lvsrv
lvremove -f /dev/vg0/$TIMESTAMP-snap-lvsrv >/dev/null
rmdir /mnt/lv-snapshots/snap-lvsrv

umount /mnt/lv-snapshots/snap-lvtimemashine
lvremove -f /dev/vg0/$TIMESTAMP-snap-lvtimemashine >/dev/null
rmdir /mnt/lv-snapshots/snap-lvtimemashine

# removing pid file
rm $STATUSFILE

# send statistics to zabbix
grep -F '"message_type":"summary",' $STDOUT | /etc/restic/restic_stats_to_zabbix.rb