mysql容器的定时备份脚本，有二种方法

mysqldump

[root@localhost node]# cat /root/mysqlbeifen.sh
#!/bin/bash

# 定义参数
CONTAINER_NAME="mysql"
HOST_BACKUP_DIR="/bak"
REMOTE_MACHINE_IP="192.168.0.29"
REMOTE_TARGET_DIR="/bak/cd"
MYSQL_USER="root"
MYSQL_PASSWORD="pass123"

# 获取MySQL容器的ID
CONTAINER_ID=$(docker ps -f "name=$CONTAINER_NAME" -q)

if [ -z "$CONTAINER_ID" ]; then
    echo "MySQL容器不存在，请确保MySQL容器正在运行."
    exit 1
fi

# 创建备份文件名
BACKUP_FILE="mysql_$(date +%Y%m%d_%H%M%S).sql"

# 备份MySQL数据库到主机
docker exec $CONTAINER_ID mysqldump --max_allowed_packet=512M -u $MYSQL_USER -p$MYSQL_PASSWORD --all-databases > $HOST_BACKUP_DIR/$BACKUP_FILE

if [ $? -eq 0 ]; then
    echo "MySQL数据库已成功备份到主机."
else
    echo "备份过程中发生错误，请检查日志."
    exit 1
fi

# 压缩备份文件为tar.gz格式
tar -czvf $HOST_BACKUP_DIR/$BACKUP_FILE.tar.gz -C $HOST_BACKUP_DIR $BACKUP_FILE 

if [ $? -eq 0 ]; then
    echo "备份文件已成功压缩为tar.gz格式."
else
    echo "压缩过程中发生错误，请检查日志."
    exit 1
fi

# 远程拷贝到其他机器
scp $HOST_BACKUP_DIR/$BACKUP_FILE.tar.gz $REMOTE_MACHINE_IP:$REMOTE_TARGET_DIR/ 

if [ $? -eq 0 ]; then
    echo "备份文件已成功远程拷贝到其他机器."
else
    echo "远程拷贝过程中发生错误，请检查网络连接和远程机器的权限."
    exit 1
fi

# 删除本机的备份文件
rm -rf $HOST_BACKUP_DIR/$BACKUP_FILE $HOST_BACKUP_DIR/$BACKUP_FILE.tar.gz

if [ $? -eq 0 ]; then
    echo "本机上的备份文件已成功删除."
else
    echo "删除本机备份文件过程中发生错误，请检查权限."
    exit 1
fi

mysql备份工具innobackupex 

#!/bin/bash
innobackupex --defaults-file=/docker/mysql/conf/my.cnf --host=127.0.0.1 --port=3306 --user=root --password='111111' --datadir=/docker/mysql/data/  --stream=tar ./ | gzip  | ssh root@192.168.0.29 \ "cat - > /bak/zhi/`date +%Y-%m-%d`.tar.gz"