docker 备份数据库
- 创建
/user/local/src/backup/mysql-backup.sh文件。
#!/bin/bash
CONTAINER_NAME="mysql8.2" # MySQL容器名称
MYSQL_PWD="xxxxxx" # 数据库密码
MYSQL_DATABASE="xxxxxx" # 数据库名称
BACKUP_DIR="/user/local/src/backup/mysql" # 备份存储目录
LOG_DIR="/user/local/src/backup/logs" # 备份存储目录
DATE=$(date +"%Y%m%d")
# 确保备份目录存在
mkdir -p "$BACKUP_DIR"
mkdir -p "$LOG_DIR"
# 每周日进行全量备份
if [[ $(date +%u) -eq 7 ]]; then
echo "开始备份..."
BACKUP_FILE="$BACKUP_DIR/mysql_full_$DATE.sql"
docker exec $CONTAINER_NAME sh -c "mysqldump -uroot -p'$MYSQL_PWD' $MYSQL_DATABASE" >"$BACKUP_FILE"
gzip "$BACKUP_FILE"
echo "备份完成并压缩，存储路径：$BACKUP_FILE.gz"
else
echo "今天不是周天，不备份"
fi如果备份所有数据库。mysqldump --all-databases -uroot -p'$MYSQL_PWD'
- 设置权限
chmod +x /user/local/src/backup/mysql-backup.sh- 添加定时任务\
crontab -e
#每天凌晨 2 点启动定时任务
0 2 * * * bash /user/local/src/backup/mysql-backup.sh >> /user/local/src/backup/logs/backup_$(date +\%Y\%m\%d).log 2>&1