1.获取备份文件，从阿里控制台上可以下载
2.解压
获取解压脚本
wget 'http://oss.aliyuncs.com/aliyunecs/rds_backup_extract.sh?spm=5176.775973700.0.0.n9b8wj&file=rds_backup_extract.sh' -O rds_backup_extract.sh
执行解压
bash rds_backup_extract.sh -f full.tar.gz -C /data/mysql/站点名称
3.启动容器
docker run --name 项目名 -v /data/mysql/站点名:/var/lib/mysql -p 33003:3306 -d percona5.6（为定制后镜像）
4.进入容器数据库执行
truncate table cartier love necklace mysql.slave_relay_log_info; truncate table mysql.slave_master_info; truncate table mysql.slave_worker_info;
5.重启容器
docker restart 容器名
6.进入容器数据库设置global gtid
该配置文件位于备份下来的数据文件xtrabackup_slave_info内
7.设定master info
change master to master_host='rds外网地址',master_user='账号',master_port=3306,master_password='密码',master_auto_position=1;
8.检查同步状态
show slave status\G
9.容器内my.cnf配置文件如下
[mysqld] #skip-grant-tables user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 datadir = /var/lib/mysql log-bin = mysql-bin server-id = 33001 log-error = /var/log/mysql/error.log #relay_log=/data/percona3310/relay-log.000001 master-info-repository=file relay-log-info_repository=file binlog-format=ROW gtid-mode=on enforce-gtid-consistency=true read_only = on binlog-format=ROW log-bin=mysql-bin log-bin-index=mysql-bin.index innodb_file_per_table = 1 relay-log = relay-log relay-log-index = relay-log.index log-slave-updates=true sync-master-info=1 slave-parallel-workers=2 binlog-checksum=CRC32 master-verify-checksum=1 slave-sql-verify-checksum=1 binlog-rows-query-log_events=1 report-port=3306 report-host=202.131.80.74 innodb_checksum_algorithm=innodb innodb_log_checksum_algorithm=innodb innodb_data_file_path=ibdata1:200M:autoextend innodb_log_files_in_group=2 innodb_log_file_size=1572864000 #innodb_fast_checksum=false #innodb_page_size=16384 #innodb_log_block_size=512 innodb_undo_directory=. innodb_undo_tablespaces=0 #rds_encrypt_data=false #innodb_encrypt_algorithm=aes_128_ecb
来源：https://www.cnblogs.com/david-qing/p/8657411.html