定時冷備份

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)庫名稱，多個用空格分開隔開 如("db1" "db2" "db3")
backup_location=/home/bak/mysqlbak  #備份數(shù)據(jù)存放位置，末尾請不要帶"/",此項可以保持默認，程序會自動創(chuàng)建文件夾
expire_backup_delete="ON" #是否開啟過期備份刪除 ON為開啟 OFF為關(guān)閉
expire_days=3 #過期時間天數(shù) 默認為三天，此項只有在expire_backup_delete開啟時有效
backup_time=`date +%Y%m%d%H%M`  #定義備份詳細時間
backup_Ymd=`date +%Y-%m-%d` #定義備份目錄中的年月日時間
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
#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

# 如果開啟了刪除過期備份，則進行刪除操作
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)置定時任務

## 進入定時任務設(shè)置
crontab -e
# 輸入定時任務
# mysql back
 0 3,13 * *  /home/bin/mysql_bak.sh

0 3,13 * * 每天凌晨3點 下午1點執(zhí)行一次命令

Docker使用mysqldump命令備份導出mysql容器中的數(shù)據(jù)

docker exec -it mysql01 mysqldump -uroot -proot demo > /home/bak/demo.sql

# 使用mysqldump只導出數(shù)據(jù)不導出表結(jié)構(gòu)

docker exec -it mysql01 mysqldump --opt -t -uroot -proot demo > /home/bak/demo2.sql

# 使用mysqldump只導出表結(jié)構(gòu)不導出數(shù)據(jù)

docker exec -it mysql01 mysqldump --opt -d -uroot -proot demo > /home/bak/demo1.sql

#使用mysqldump導出特定表的結(jié)構(gòu)

docker exec -it mysql01 mysqldump -uroot -proot -B demo --table playmath_user > /home/bak/playmath_user.sql

# Docker執(zhí)行導入（恢復）數(shù)據(jù)庫命令:
docker exec -i mysql01 mysql -uroot -proot 庫名 < /home/bak/playmath_sso.sql

參考: 

參考: https://blog.csdn.net/muriyue6/article/details/82848358