backupscripts

backup.sh

#!/bin/bash
# Backup script to save important IsoBeef data on Hetzner's backup service.
#
# Usage:
#   ./backup
#
# Written by BOFH Lyse, licensed under WTFPL.
#
# References:
#   http://www.nongnu.org/rdiff-backup/examples.html
#   http://wiki.rdiff-backup.org/wiki/index.php/BackupToSshfsMount

#
# ensure root runs this script
#
if [ "`whoami`" != "root" ]; then
	echo 'Only root can run "backup"!' >&2
	exit 1
fi

START=`date +%s`

LOG=/root/backup-`date +%Y-%m-%d-%H-%M`.log
function info {
	TEXT="`date +%Y-%m-%d\ %H:%M:%S` $@"
	echo "$TEXT"
	echo "$TEXT" >> $LOG
}

#
# read the configuration file, it defines
#   * $BACKUP_MOUNT
#   * $BACKUP_CREDENTIALS
#   * MYSQL_ROOT_PASSWORD
CONFIG=$HOME/.backuprc
[ -f $CONFIG ] && . $CONFIG || {
	echo "Missing configuration file $CONFIG!" >&2
	exit 2
}

#
# mount the backup service
#
info "Mounting SSHFS..."
/root/backup_mount.sh

#
# do the backup work
#

function backup() {
	for FULL_PATH in $@; do
		# create parent directory if not present (supports directories,
		# files and symbolic links)
		if [ -d "$FULL_PATH" ]; then
			[ -d "$BACKUP_MOUNT/$FULL_PATH" ] || mkdir -p "$BACKUP_MOUNT/$FULL_PATH"
		elif [ -f "$FULL_PATH" ] || [ -h "$FULL_PATH" ]; then
			DIR=`dirname "$BACKUP_MOUNT/$FULL_PATH"`
			[ -d "$DIR" ] || mkdir -p "$DIR"
		else
			info "$FULL_PATH is not a directory, file or symbolic link, skipping!"
			continue
		fi

		info "Backing up $FULL_PATH..."
		rdiff-backup --force "$FULL_PATH" "$BACKUP_MOUNT/$FULL_PATH" 2>&1 | grep -v 'Warning: hard linking not supported by filesystem at '
	done
}

# create MySQL dump
MYSQL_DUMP=/root/dumps/mysql.sql
info "Creating MySQL dump $MYSQL_DUMP..."
mysqldump --all-databases --events --force --user=root --password=$MYSQL_ROOT_PASSWORD > $MYSQL_DUMP

# create LDAP dump
LDAP_DUMP=/root/dumps/ldap.ldap
info "Creating LDAP dump $LDAP_DUMP..."
/usr/sbin/slapcat > $LDAP_DUMP

# create MongoDB dump
MONGO_DUMP=/root/dumps/mongodb
info "Creating MongoDB dump $MONGO_DUMP..."
mongodump -o $MONGO_DUMP > /dev/null

# backup stuff
backup \
	/etc \
	/srv/mail \
	/home/dgall/Maildir \
	/home/jd/Maildir \
	/home/lyse/Maildir \
	/home/rashfael/Maildir \
	/home/sr/Maildir \
	/home/wf/Maildir \
	/root/dumps # MySQL, LDAP, PostgreSQL & MongoDB dumps

#
# finally umount backup system
#
info "Unmounting SSHFS..."
/root/backup_umount.sh

END=`date +%s`
DELTA=$(($END - $START))
MINUTES=$(($DELTA / 60))
SECONDS=$(($DELTA % 60))
[ $SECONDS -lt 10 ] && SECONDS="0$SECONDS"
info "Finished in $MINUTES:$SECONDS minutes."

backup_mount.sh

#!/bin/bash

#
# read the configuration file, it defines
#   * $BACKUP_MOUNT
#   * $BACKUP_CREDENTIALS
#   * MYSQL_ROOT_PASSWORD
CONFIG=$HOME/.backuprc
[ -f $CONFIG ] && . $CONFIG || {
	echo "Missing configuration file $CONFIG!" >&2
	exit 2
}

#
# mount the backup service
#

# create mountpoint if not present, so mounting will not fail on missing
# target directory
[ -d "$BACKUP_MOUNT" ] || mkdir "$BACKUP_MOUNT"

# actually mount the backup space
sshfs "$BACKUP_CREDENTIALS" "$BACKUP_MOUNT" -o workaround=rename -o reconnect

backup_remainingspace.sh

#!/bin/bash
echo "du" | lftp -u username,password username.your-backup.de | awk -v LIMIT=100 '$2=="." {print $1/1024 " MiB used, " ((LIMIT*1024*1024)-$1)/1024 " MiB backup space remaining"}'

backup_umount.sh

#!/bin/bash

#
# read the configuration file, it defines
#   * $BACKUP_MOUNT
#   * $BACKUP_CREDENTIALS
#   * MYSQL_ROOT_PASSWORD
CONFIG=$HOME/.backuprc
[ -f $CONFIG ] && . $CONFIG || {
	echo "Missing configuration file $CONFIG!" >&2
	exit 2
}

#
# finally umount backup system
#
fusermount -u "$BACKUP_MOUNT"