批量备份服务器配置文件和目录

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批量备份服务器配置文件和目录
功能：
1. 只在备份机执行，远程的服务器只需要允许备份机用root通过密钥登录；
2. 在备份机上配置需要备份哪些服务器，在NEED_BACKUP_SERVERS这个数组增减；
3. 在备份机上配置需要备份服务器上哪些文件，在NEED_BACKUP_DETAIL这个数组增减，如果需要备份某台服务器上NEED_BACKUP_DETAIL数组里定义的某个文件就备份，不存在的文件则自动跳过，例如Web服务器上没my.cnf ， 也没有影响；
4. 如果服务器上产生的新备份和已经存在已往备份内容一样则只保留时间较早的备份。因为服务器的配置文件不是经常改动的；
5. 通过修改定义KEEP_BACKUP_NUM为个变量，可以决定远程服务器上保留最近多少份备份，我这里定义的是10份。备份机上保留所有远程服务器的备份。因为配置文件都比较小，不用担心磁盘空间占用问题。
用过下列技术：
1. 获取远程服务器IP，如果某台服务器没有公网IP则使用该服务器的“主机名_IP.备份年月日_备份时间.tar.gz
2. 通过循环、判断，对数组中的元素重新赋值；
本脚本下载地址：
[url]http://down.chengyongxu.com/Backup_Config_Files_Of_Remote_Servers.sh[/url]
下载之后请留意版本号和更新日志。

001	#!/bin/bash

002	##################################################################

003	# Backup_Config_Files_Of_Remote_Servers

004	# Env: Centos 5.5 x86_64

005	# Created by Hernan on 2011-04-06

006	# Copyright 2010 __Chengyongxu.com__. All rights reserved.

007

#

008	# Version: 1.4.6

009	# Revision History

010	##################################################################

011

012	# Local Tmp Dir Of This Script

013	THIS_SCRIPT_TMP=/tmp/Do_at_remote_server.sh

014	THIS_SCRIPT_TMP_NAME=`echo $THIS_SCRIPT_TMP|awk -F/ '{print $NF}'`

015	# Local Backup Dir

016	LOCAL_BACKUP_DIR=/tmp/IDC_config_backup

017

018	# Need Backup Servers And Files List

019	REMOTE_SERVER_TMP_DIR=/tmp/Backup_server_config_files_tmp

020	NEED_BACKUP_SERVERS=(\

021

10.0.0.52

022	server_a_ip \

023	server_b_ip \

024	server_c_ip \

025	server_d_ip \

026	chengyongxu.com \

027

)

028	NEED_BACKUP_DETAIL=(\

029	/etc/hosts \

030	/etc/httpd/conf/*.conf \

031	/etc/httpd/conf.d/*.conf \

032	/etc/keepalived/keepalived.conf

033	/etc/my.cnf \

034	/etc/postfix \

035	/root/bin/*sh \

036	/usr/local/nagios/etc/nagios.cfg \

037	/usr/local/nagios/etc/objects/*cfg \

038	/usr/local/nginx/conf \

039	/usr/local/php/etc/php.ini \

040	/usr/local/php/etc/php-fpm.conf \

041	/usr/local/php-fcgi/etc/php.ini \

042	/usr/local/php-fcgi/etc/php-fpm.conf \

043	/usr/local/sphinx/etc/*.conf \

044	/var/spool/cron \

045

)

046	KEEP_BACKUP_NUM=10

047

048	SSH_PORT=22

049	SSH_USER=root

050

051	##################################################################

052

#

053	# Global Functions

054

#

055	##################################################################

056

057	#========= !!!! Warning ! Don't edit next function !!!! =========#

058	# Create Script Tmp File

059	Create_Script (){

060	cat << EOF > $THIS_SCRIPT_TMP

061	#!/bin/bash

062

063	NEED_BACKUP_DETAIL=(${NEED_BACKUP_DETAIL })

064

065	# How many nums the backup needed

066	BAKNUM=$KEEP_BACKUP_NUM

067

068	REMOTE_SERVER_TMP_DIR=$REMOTE_SERVER_TMP_DIR

069	SERVER_IP=\`/sbin/ifconfig|grep "inet addr"|cut -f 2 -d ":"|cut -f 1 -d " "|grep -vE "^10.|^127|^172.16|^192.168"\`

070	BACKUP_TIME=\`date +%Y%m%d_%H%M\`

071

072	##################################################################

073

#

074	# Compress NEED_BACKUP_DETAIL

075

#

076	##################################################################

077	# If IPv4 private address only, use hostname.ip

078	if [ -z \$SERVER_IP ]

079

then

080	SERVER_IP=\`hostname\`_\`/sbin/ifconfig|grep "inet addr"|cut -f 2 -d ":"|cut -f 1 -d " "|grep -vE "^127"|head -n 1\`

081

fi

082

083	# Create Tpm dir

084	if [ ! -d \$REMOTE_SERVER_TMP_DIR ]

085

then

086	mkdir -p \$REMOTE_SERVER_TMP_DIR

087

fi

088

089	# Compress

090	for file in \${NEED_BACKUP_DETAIL }

091

do

092	# When you want to backup the file exists,

093	#   assign to an element of the new array

094	while [ -e \$file ]

095

do

096	NEED_BACKUP_DETAIL_EXISTS[\$num]=\$file

097

let num++

098

break

099

done

100

done

101	tar zcfpP \$REMOTE_SERVER_TMP_DIR/\$SERVER_IP.\$BACKUP_TIME.tar.gz \${NEED_BACKUP_DETAIL_EXISTS }

102

103	##################################################################

104

#

105	# If files are the same,keep one only

106

#

107	##################################################################

108	NEW_BACKUP_ARCHIVE_CONTENT=\`tar tvf \$REMOTE_SERVER_TMP_DIR/\$SERVER_IP.\$BACKUP_TIME.tar.gz\`

109	for backfile in \`ls \$REMOTE_SERVER_TMP_DIR | grep tar.gz |grep -v \$SERVER_IP.\$BACKUP_TIME\`

110

do

111	OLD_BACKUP_ARCHIVE_CONTENT=\`tar tvf \$REMOTE_SERVER_TMP_DIR/\$backfile\`

112	while [ "\$NEW_BACKUP_ARCHIVE_CONTENT" = "\$OLD_BACKUP_ARCHIVE_CONTENT" ]

113

do

114	rm -rvf \$REMOTE_SERVER_TMP_DIR/\$SERVER_IP.\$BACKUP_TIME.tar.gz 1 >> \$REMOTE_SERVER_TMP_DIR/delete_new.log

115

break

116

done

117

done

118

119	##################################################################

120

#

121	# Keep Some Backup Files Newest

122

#

123	##################################################################

124

count=0

125	for name in \`ls \$BAKPATH/ |grep -E '[0-9]{6,6}' | sort -r\`

126

do

127	count=\$((count+1))

128	if [ \$count -gt \$BAKNUM ] ; then

129	echo -n "Cleaning old backup: \$name... "

130	if [ "\$BAKPATH/\$name" = "/" ] ; then

131	echo "No rm -rf /!"

132

exit 1

133

fi

134	rm -rf \$BAKPATH/\$name

135	echo " Done."

136

else

137	echo "Keeping old backup: \$name"

138

fi

139

done

140

exit

141

EOF

142

}

143

144	Copy_Script_To_Remote (){

145	for server in ${NEED_BACKUP_SERVERS }

146

do

147	ssh -p $SSH_PORT -tt $SSH_USER@$server << EOT

148	mkdir -p $REMOTE_SERVER_TMP_DIR

149

exit

150

EOT

151	scp -P $SSH_PORT $THIS_SCRIPT_TMP $SSH_USER@$serverREMOTE_SERVER_TMP_DIR/

152

done

153

}

154

155	Backup_On_Remote_Then_Copy_Back (){

156	for server in ${NEED_BACKUP_SERVERS }

157

do

158	ssh -p $SSH_PORT -tt $SSH_USER@$server << EOP

159	chmod o+x $REMOTE_SERVER_TMP_DIR/$THIS_SCRIPT_TMP_NAME

160	sh $REMOTE_SERVER_TMP_DIR/$THIS_SCRIPT_TMP_NAME

161	rm -f $REMOTE_SERVER_TMP_DIR/$THIS_SCRIPT_TMP_NAME

162

exit

163

EOP

164	rsync -e "ssh -p $SSH_PORT" $SSH_USER@$serverREMOTE_SERVER_TMP_DIR/*tar.gz $LOCAL_BACKUP_DIR/

165

done

166

}

167

168	##################################################################

169

#

170

# Main

171

#

172	##################################################################

173

#

174	Create_Script

175	Copy_Script_To_Remote

176	Backup_On_Remote_Then_Copy_Back

177	rm -rf $THIS_SCRIPT_TMP

http://www.chengyongxu.com/blog/%E6%89%B9%E9%87%8F%E5%A4%87%E4%BB%BD%E6%9C%8D%E5%8A%A1%E5%99%A8%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6%E5%92%8C%E7%9B%AE%E5%BD%95/
批量备份服务器配置文件和目录