记住用户名密码
1:定义备份的数据库
2:使用mysqldump备份
3:压缩备份sql脚本
4:删除10天前的备份数据
5:通过rsync同步到备份服务器
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#!/bin/bash# mysql_backup.sh: backup mysql databases and keep newest 5 days backup.## ${db_user} is mysql username# ${db_password} is mysql password# ${db_host} is mysql host# ${db_port} is mysql port# —————————–#/root/mysql_backup.sh# everyday 3:00 AM execute database backup# 0 3 * * * /root/mysql_backup.sh#/etc/cron.dailydb_user="root"db_password="123456"db_host="47.106.111.110"db_port="3306"# the directory for story your backup file. #backup_dir="/Host/backup/mysql/"# 要备份的数据库名 ##all_db="$(${mysql} -u ${db_user} -h ${db_host} -p${db_password} -Bse 'show databases')" #all_db="test"# 要保留的备份天数 #backup_day=10#数据库备份日志文件存储的路径logfile="/Host/backup/mysql_backup.log"###ssh端口号###ssh_port=22###定义ssh auto key的文件###id_rsa=/root/auth_key/id_rsa_153.141.rsa###定义ssh auto username###id_rsa_user=rsync###定义要同步的远程服务器的目录路径（必须是绝对路径）###clientPath="/home/backup/mysql"###定义要镜像的本地文件目录路径 源服务器（必须是绝对路径）###serverPath=${backup_dir}###定义生产环境的ip###web_ip="192.168.0.2"# date format for backup file (dd-mm-yyyy) #time="$(date +"%Y-%m-%d")"# mysql, ${mysqldump} and some other bin's path #mysql="/usr/bin/mysql "mysqldump="/usr/bin/mysqldump"# the directory for story the newest backup #test ! -d ${backup_dir} && mkdir -p ${backup_dir}#备份数据库函数#mysql_backup(){ # 取所有的数据库名 # for db in ${all_db} do echo "开始备份: "${db} backname=${db}.${time} dumpfile=${backup_dir}${backname} #将备份的时间、数据库名存入日志 echo "------"$(date +'%Y-%m-%d %T')" Beginning database "${db}" backup--------" >>${logfile} ${mysqldump} -F -u${db_user} -h${db_host} -P${db_port} -p${db_password} ${db} > ${dumpfile}.sql 2>>${logfile} 2>&1 #开始将压缩数据日志写入log echo $(date +'%Y-%m-%d %T')" Beginning zip ${dumpfile}.sql" >>${logfile} #将备份数据库文件库压成ZIP文件，并删除先前的SQL文件. # tar -czvf ${backname}.tar.gz ${backname}.sql 2>&1 && rm ${dumpfile}.sql 2>>${logfile} 2>&1 #将压缩后的文件名存入日志。 echo "backup file name:"${dumpfile}".tar.gz" >>${logfile} echo -e "-------"$(date +'%Y-%m-%d %T')" Ending database "${db}" backup-------\n" >>${logfile} done}delete_old_backup(){ echo "delete backup file:" >>${logfile} # 删除旧的备份 查找出当前目录下七天前生成的文件，并将之删除 find ${backup_dir} -type f -mtime +${backup_day} | tee delete_list.log | xargs rm -rf cat delete_list.log >>${logfile}}rsync_mysql_backup(){ # rsync 同步到其他Server中 # for j in ${web_ip} do echo "mysql_backup_rsync to ${j} begin at "$(date +'%Y-%m-%d %T') >>${logfile} ### 同步 ### rsync -avz --progress --delete $serverPath -e "ssh -p "${ssh_port}" -i "${id_rsa} ${id_rsa_user}@${j}:$clientPath >>${logfile} 2>&1 echo "mysql_backup_rsync to ${j} done at "$(date +'%Y-%m-%d %T') >>${logfile} done}#进入数据库备份文件目录cd ${backup_dir}mysql_backupdelete_old_backup# rsync_mysql_backupecho -e "========================mysql backup && rsync done at "$(date +'%Y-%m-%d %T')"============================\n\n">>${logfile}cat ${logfile} |
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0 3 * * * /home/tioncico/mysql_backup.sh |
每天3点0分进行备份
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