backup

backup.sh

#!/bin/sh

dir_backup_dst=/path/to/backup/`hostname`
timestamp=`date +%Y%m%d%H`

myname=`basename $0`
pid=$$

(

if [ ! -d "$dir_backup_dst" ]
then
	mkdir -p $dir_backup_dst
fi

myhost=`hostname -s`
while read host type need_clean name src
do
	if [ -z "$name" ]
	then
		continue
	fi

	case	"$host" in
		\#*)
			continue
			;;
	esac

	if [ "$host" != "$myhost" ] && [ "$host" != "*" ]
	then
		echo "### Skip(type=$type) $name" 1>&2
		continue
	fi

	echo "### Archive(type=$type) $name" 1>&2
	arc="$dir_backup_dst/$timestamp-$name.$type"
	/bin/rm -f $arc.gz $arc

	case    "$type" in
		mysql)
			# src means any option
			mysqldump $name $src | grep -v "^-- Dump completed on" > $arc && gzip --no-name $arc
			;;
		pgsql)
			# src means any option
			pg_dump $src $name > $arc && gzip --no-name $arc
            ;;
		tar)
			tar cf $arc -C / `cd / && echo $src`
			gzip --no-name $arc
			;;
		rsync)
			rsync $src
			;;
		*)
			echo "*** unknown type=$type" 1>&2
			;;
	esac

	if [ "$need_clean" = "0" ]
	then
		# rsyncの場合ローカルの整理がいらないので
		continue
	fi

	ls -t "$dir_backup_dst"/*-$name.$type.gz | while read line
	do
		if [ "$line" = "$arc.gz" ]
		then
			continue
		fi
		diff -q $line $arc.gz > /dev/null 2>&1
		rc=$?
		if [ $rc = 0 ]
		then
			echo "$name: Both previous archive and latest one are same."
			/bin/rm -f $arc.gz
		fi

		break
	done
done <<EOF
*	tar 1	httpd-conf etc/httpd/conf/ etc/httpd/conf.local home/svn/authz
*	tar 1	os-any etc/cron.daily/ etc/rc.local etc/samba/ etc/nsswitch.conf etc/hosts etc/group etc/sysconfig/ etc/passwd etc/logrotate.d/ etc/logrotate.conf etc/xinetd.d/ etc/ld.so.conf etc/ld.so.conf.d/ etc/krb5.conf etc/ssh/ etc/ntp.conf
*	tar	1	os-perl usr/lib/perl5/site_perl

db	pgsql   1	dbback	-U user -h host
db	rsync	0	sync2any -av /path/to/backup/ dst::rsync_name
EOF

	echo "done."
) 2>&1 | logger -s -t "$myname[$pid]"