1. docker pull mysql拉取docker镜像，国内现在访问不了docker hub，可以去阿里云上镜像加速器地址https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
2. 启动主库docker run -p 3306:3306 --name master-mysql --privileged=true -v /app/docker/data/master-mysql/log:/var/log/mysql -v /app/docker/data/master-mysql/data/:/var/lib/mysql -v /app/docker/data/master-mysql/conf/:/etc/mysql -v /etc/localtime:/etc/localtime:ro -v /app/docker/data/master-mysql/mysql-files/:/var/lib/mysql-files -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -d mysql
   -v后面是卷映射，privileged是获取root权限，MYSQL_ALLOW_EMPTY_PASSWORD=yes是允许数据root无密码登录避免一些奇怪的错误
3. docker exec -it master-mysql bash进入主库容器内
4. mysql -uroot登录数据库
5. use mysql切换到mysql数据库
6. ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456' PASSWORD EXPIRE NEVER;更改密码，123456可以替换为你自己要设定的密码
7. udpate user set Host='%' where User='root'打开访问地址限制
8. 启动从库docker run -p 3308:3306 --name slave-mysql --privileged=true -v /app/docker/data/slave-mysql/log:/var/log/mysql -v /app/docker/data/slave-mysql/data/:/var/lib/mysql -v /app/docker/data/slave-mysql/conf/:/etc/mysql -v /etc/localtime:/etc/localtime:ro -v /app/docker/data/slave-mysql/mysql-files/:/var/lib/mysql-files -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -d mysql
9. docker exec -it slave-mysql bash进入从库容器内
10. mysql -uroot登录数据库
11. use mysql切换到mysql数据库
12. ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456' PASSWORD EXPIRE NEVER;更改密码，123456可以替换为你自己要设定的密码
13. udpate user set Host='%' where User='root'打开访问地址限制
14. 在映射卷地址/app/docker/data/master-mysql/conf/中创建文件my.cnf，内容如下

[musqld]
server_id=1

15. 重启主容器docker restart master-mysql
16. docker exec -it master-mysql bash进入主库容器
17. mysql -uroot -p
18. CREATE USER 'replication_user'@'%' IDENTIFIED WITH mysql_native_password BY 'root';配置主库账号
19. GRANT REPLICATION SLAVE ON *.* TO 'replication_user'@'%';
20. FLUSH PRIVILEGES;
21. SHOW MASTER STATUS;查看主服务器状态
22. 退出容器，查看主服务器ip地址docker inspect master-mysql | grep IPAddress
23. 在映射卷地址/app/docker/data/slave-mysql/conf/中创建文件my.cnf，内容如下

[musqld]
server_id=2

24. 重启从库容器docker restart slave-mysql
25. docker exec -it slave-mysql bash
26. mysql -u root -p
27. CHANGE REPLICATION SOURCE TO SOURCE_HOST='172.17.0.2', SOURCE_USER='replication_user', SOURCE_PASSWORD='root', SOURCE_LOG_FILE='binlog.000005', SOURCE_LOG_POS=4566;配置从库服务器，SOURCE_HOST为主服务器Ip 地址，SOURCE_LOG_FILE为主服务器 binlog 文件，SOURCE_LOG_POS为 position,通过在主节点SHOW MASTER STATUS可以获取
28. 启动从服务器复制进程START REPLICA;
29. 查看从服务器状态SHOW REPLICA STATUS;
30. 若要重新搭建STOP REPLICA;RESET REPLICA;