動作中のLinuxシステムの/が含まれるパーティションのバックアップ。

sys_backup.sh

#!/bin/bash

# 動作中のLinuxシステムの/が含まれるパーティションのバックアップ。/data1/はシステムとは別のパーティション(可能なら別の物理メディア)にあるべき。

mnt_root="/mnt/root"
hostname="`hostname`"
get_mnt_backup() {
	echo "/data1/backup/${1}/root"
}


usage() {
	echo "usage:`basename "$0"` backup"
	echo "  back up / to `get_mnt_backup "${hostname}"`/backup0"
	echo "      `basename "$0"` restore <hostname> <dst_path>"
	echo "  restore most recent backup to <dst_path>"
	echo "      `basename "$0"` archive <date> <backup_num>"
	echo "  make archive of backup <backup_num>"
}


complete_func() {
#	beep -f 784 -n -f 1000 -n -f 1568
	echo "done."
}

backup_exec() {
	mnt_backup="`get_mnt_backup "${hostname}"`"
	echo "backup mode"
	echo "hostname: ${hostname}"
	echo "dest: ${mnt_backup}/backup0"
	mount -o bind / "$mnt_root"
	rm -rf "${mnt_backup}/backup4"
	echo "rm done."
	mv "${mnt_backup}/backup3" "${mnt_backup}/backup4"
	mv "${mnt_backup}/backup2" "${mnt_backup}/backup3"
	mv "${mnt_backup}/backup1" "${mnt_backup}/backup2"
	mv "${mnt_backup}/backup0" "${mnt_backup}/backup1"
	echo "mv done."
#	rsync -a --delete --exclude='/tmp/**' --exclude='/var/tmp/portage/**' --exclude='/usr/portage/packages/**' --exclude="/var/backups" --exclude="/user_tmp" --link-dest="${mnt_backup}/backup1" "${mnt_root}/" "${mnt_backup}/backup0/"
	rsync -a --delete --link-dest="${mnt_backup}/backup1" --exclude='/var/tmp/portage/**' --exclude='/usr/portage/packages/**' --exclude="/var/backups" "/bin" "/boot" "${mnt_root}/dev" "/etc" "${mnt_root}/home" "/lib" "/lib32" "/lib64" "${mnt_root}/media" "${mnt_root}/mnt" "/opt" "${mnt_root}/proc" "/root" "${mnt_root}/run" "/sbin" "${mnt_root}/sys" "/usr" "/var" "${mnt_backup}/backup0/"
	echo "rsync done."
	umount -l "$mnt_root"
	complete_func
}

backup_restore() {
	hostname="$1"
	src_backup="`get_mnt_backup "${hostname}"`/backup0"
	dst_root="$2"
	echo "restore mode"
	echo "hostname: ${hostname}"
	echo "source: ${src_backup}"
	echo "dest: ${dst_root}"
	countdown_5s
	sudo rsync -a --delete "${src_backup}/" "${dst_root}/"
	complete_func
}

make_archive() {
	DATE="$1"
	NUM="${2:-0}"
	mnt_backup="`get_mnt_backup "${hostname}"`"
	ARCHIVE_BASENAME="backup_${hostname}_root_${DATE}"
	ARCHIVE_DIR="/mars/backup/kaputnik-gentoo/${DATE}"
	SRC_DIR="${mnt_backup}/backup${NUM}/"
	cd "${SRC_DIR}"
	mkdir "${ARCHIVE_DIR}"
	echo "start..."
	tar --use-compress-program=pbzip2 --exclude-from ../tar_backup_exclude -cvpf "${ARCHIVE_DIR}/${ARCHIVE_BASENAME}.tar.bz2" . | tee "${ARCHIVE_DIR}/${ARCHIVE_BASENAME}_filelist" | pbzip2 --stdout -9 >"${ARCHIVE_DIR}/${ARCHIVE_BASENAME}.bz2"
	echo "done."
}

countdown_5s() {
	echo -n "countdown: 5..." >&2
	sleep 1
	echo -n " 4..." >&2
	sleep 1
	echo -n " 3..." >&2
	sleep 1
	echo -n " 2..." >&2
	sleep 1
	echo -n " 1..." >&2
	sleep 1
	echo -n " start." >&2
}


echo "cmdline: $0 $@"
case ${1} in
	backup|restore|archive)
		;;
	*)
		usage
		exit 0
		;;
esac
UID_="`id -u`"
case ${UID_} in
	0|999)
		# super user
		# 999: ubuntu live cd user
		case ${1} in
			backup)
				backup_exec
				;;
			restore)
				backup_restore "$2" "$3"
				;;
			archive)
				make_archive "$2" "$3"
				;;
		esac
		;;
	*)
		# not super user
		# change to super user
		echo "UID: ${UID_}"
		exec sudo $0 "$@"
		;;
esac

sys_backup_zfs.sh

#!/bin/bash

# 動作中のLinuxシステムの/が含まれるパーティションのバックアップ。/saturnはシステムとは別の物理メディアのZFSファイルシステム。

mnt_root="/mnt/root"
hostname="`hostname`"
datetime="`date '+%Y%m%d-%H%M%S'`"
backup_subdir="root"
# rate_limit: [Kbps]
# 1250Kbps == 10MB/s
#rate_limit="--bwlimit=600"
rate_limit=""

get_backup_dest() {
	echo "/saturn/backups/backup_${1}"
}
get_backup_dest_zfs() {
	echo "saturn/backups/backup_${1}"
}

iecho() {
	echo "$@"
} >&2

usage() {
	echo "usage:`basename "$0"` backup [--snapshot]"
	echo "  back up / to `get_backup_dest "${hostname}"`/root ."
	echo "      `basename "$0"` restore <hostname> <dst_path>"
	echo "  restore most recent backup to <dst_path>."
	#echo "      `basename "$0"` archive <datetime> <backup_dir>"
	echo "      `basename "$0"` archive <datetime>"
	echo "  make archive of backup which was made on <datetime>."
}


complete_func() {
#	beep -f 784 -n -f 1000 -n -f 1568
	iecho "done."
}

backup_exec() {
	option_snapshot="$1"
	backup_dest="`get_backup_dest "${hostname}"`"
	backup_dest_zfs="`get_backup_dest_zfs "${hostname}"`"
	iecho "backup mode"
	iecho "hostname: ${hostname}"
	iecho "dest: ${backup_dest}/${backup_subdir}/"
	iecho "snapshot: ${backup_dest_zfs}@${datetime}"
	mount -o bind / "$mnt_root"
	# change this line for your environment.
#	#rsync -av --delete --exclude='/tmp/**' --exclude='/var/tmp/portage/**' --exclude='/usr/portage/packages/**' --exclude="/var/backups" --exclude="/user_tmp" --link-dest="${mnt_backup}/backup1" "${mnt_root}/" "${mnt_backup}/backup0/"
	rsync -av --delete --inplace ${rate_limit} --exclude='/var/tmp/portage/**' --exclude='/usr/portage/packages/**' --exclude="/var/backups" --exclude="/var/cache/squid/**" "/bin" "/boot" "${mnt_root}/dev" "/etc" "${mnt_root}/home" "/lib" "/lib32" "/lib64" "${mnt_root}/media" "${mnt_root}/mnt" "/opt" "${mnt_root}/proc" "/root" "${mnt_root}/run" "/sbin" "${mnt_root}/sys" "/usr" "/var" "${backup_dest}/${backup_subdir}/"
	iecho "rsync done."
	# take a snapshot
	if [ "x${option_snapshot}" == "x--snapshot" ] ; then
		zfs snapshot "${backup_dest_zfs}@${datetime}"
		iecho "zfs snapshot done."
	fi
	umount -l "$mnt_root"
	complete_func
}

backup_restore() {
	hostname="$1"
	src_backup="`get_mnt_backup "${hostname}"`"
	dst_root="$2"
	iecho "restore mode"
	iecho "hostname: ${hostname}"
	iecho "source: ${src_backup}"
	iecho "dest: ${dst_root}"
	countdown_5s
	sudo rsync -av ${rate_limit} --numeric-ids --delete "${src_backup}/" "${dst_root}/"
	complete_func
}

make_archive() {
	# FIXME
	DATETIME_SPECIFIED="$1"
	#NUM="${2:-0}"
	mnt_backup="`get_mnt_backup "${hostname}"`"
	ARCHIVE_BASENAME="backup_${hostname}_root_${DATETIME_SPECIFIED}"
	ARCHIVE_DIR="/mars/backup/kaputnik-gentoo/${DATETIME_SPECIFIED}"
	SRC_DIR="${mnt_backup}/backup${NUM}/"
	cd "${SRC_DIR}"
	mkdir "${ARCHIVE_DIR}"
	iecho "start..."
	tar --use-compress-program=pbzip2 --exclude-from ../tar_backup_exclude -cvpf "${ARCHIVE_DIR}/${ARCHIVE_BASENAME}.tar.bz2" . | tee "${ARCHIVE_DIR}/${ARCHIVE_BASENAME}_filelist" | pbzip2 --stdout -9 >"${ARCHIVE_DIR}/${ARCHIVE_BASENAME}.bz2"
	iecho "done."
}

countdown_5s() {
	echo -n "countdown: 5..."
	sleep 1
	echo -n " 4..."
	sleep 1
	echo -n " 3..."
	sleep 1
	echo -n " 2..."
	sleep 1
	echo -n " 1..."
	sleep 1
	echo " start."
} >&2


echo "cmdline: $0 $@"
case ${1} in
	backup|restore|archive)
		;;
	*)
		usage
		exit 0
		;;
esac
UID_="`id -u`"
case ${UID_} in
	0|999)
		# super user
		# 999: ubuntu live cd user
		case ${1} in
			backup)
				backup_exec "$2"
				;;
			restore)
				backup_restore "$2" "$3"
				;;
			archive)
				make_archive "$2" "$3"
				;;
		esac
		;;
	*)
		# not super user
		# change to super user
		iecho "UID: ${UID_}"
		exec sudo $0 "$@"
		;;
esac