定時(shí)冷備份
腳本
mysql_user="root" #MySQL備份用戶
mysql_password="123456" #MySQL備份用戶的密碼
#mysql_host="localhost"
#mysql_port="3306"
mysql_charset="utf8" #MySQL編碼
backup_db_arr=("db1" "db2") #要備份的數(shù)據(jù)庫(kù)名稱，多個(gè)用空格分開(kāi)隔開(kāi) 如("db1" "db2" "db3")
backup_location=/home/bak/mysqlbak #備份數(shù)據(jù)存放位置，末尾請(qǐng)不要帶"/",此項(xiàng)可以保持默認(rèn)，程序會(huì)自動(dòng)創(chuàng)建文件夾
expire_backup_delete="ON" #是否開(kāi)啟過(guò)期備份刪除 ON為開(kāi)啟 OFF為關(guān)閉
expire_days=3 #過(guò)期時(shí)間天數(shù) 默認(rèn)為三天，此項(xiàng)只有在expire_backup_delete開(kāi)啟時(shí)有效
backup_time=`date +%Y%m%d%H%M` #定義備份詳細(xì)時(shí)間
backup_Ymd=`date +%Y-%m-%d` #定義備份目錄中的年月日時(shí)間
backup_3ago=`date -d '3 days ago' +%Y-%m-%d` #3天之前的日期
backup_dir=$backup_location/$backup_Ymd #備份文件夾全路徑
welcome_msg="Welcome to use MySQL backup tools!" #歡迎語(yǔ)
#dbnames=$(cut -d ',' -f1-5 $backup_database)
echo "arr is (${backup_db_arr[@]})"
for dbname in ${backup_db_arr[@]}
do
echo "database $dbname backup start..."
`mkdir -p $backup_dir`
`docker exec -it mysql mysqldump -u$mysql_user -p$mysql_password $dbname --default-character-set=$mysql_charset | gzip > $backup_dir/$dbname-$backup_time.sql.gz`
flag=`echo $?`
if [ $flag == "0" ];then
echo "database $dbname success backup to $backup_dir/$dbname-$backup_time.sql.gz"
else
echo "database $dbname backup fail!"
fi
done
# 如果開(kāi)啟了刪除過(guò)期備份，則進(jìn)行刪除操作
if [ "$expire_backup_delete" == "ON" -a "$backup_location" != "" ];then
#`find $backup_location/ -type d -o -type f -ctime +$expire_days -exec rm -rf {} \;`
`find $backup_location/ -type d -mtime +$expire_days | xargs rm -rf`
echo "Expired backup data delete complete!"
fi
echo "All database backup success! Thank you!"
exit
設(shè)置定時(shí)任務(wù)
## 進(jìn)入定時(shí)任務(wù)設(shè)置
crontab -e
# 輸入定時(shí)任務(wù)
# mysql back
0 3,13 * * /home/bin/mysql_bak.sh
0 3,13 * * 每天凌晨3點(diǎn) 下午1點(diǎn)執(zhí)行一次命令
Docker使用mysqldump命令備份導(dǎo)出mysql容器中的數(shù)據(jù)
docker exec -it mysql01 mysqldump -uroot -proot demo > /home/bak/demo.sql
# 使用mysqldump只導(dǎo)出數(shù)據(jù)不導(dǎo)出表結(jié)構(gòu)
docker exec -it mysql01 mysqldump --opt -t -uroot -proot demo > /home/bak/demo2.sql
# 使用mysqldump只導(dǎo)出表結(jié)構(gòu)不導(dǎo)出數(shù)據(jù)
docker exec -it mysql01 mysqldump --opt -d -uroot -proot demo > /home/bak/demo1.sql
#使用mysqldump導(dǎo)出特定表的結(jié)構(gòu)
docker exec -it mysql01 mysqldump -uroot -proot -B demo --table playmath_user > /home/bak/playmath_user.sql
# Docker執(zhí)行導(dǎo)入（恢復(fù)）數(shù)據(jù)庫(kù)命令:
docker exec -i mysql01 mysql -uroot -proot 庫(kù)名 < /home/bak/playmath_sso.sql
參考:
