> 部署 MySQL 5.7 集群 master & slave （仅测试用）
镜像版本 5.7
1、创建 overlay 网络
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docker network create --driver overlay common-network --attachable |
2、编辑两个配置文件 master.cnf 与 slave.cnf
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!includedir /etc/mysql/conf.d/!includedir /etc/mysql/mysql.conf.d/[mysqld]log-bin=mysql-binserver-id=1gtid-mode=ONenforce-gtid-consistency=ON |
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!includedir /etc/mysql/conf.d/!includedir /etc/mysql/mysql.conf.d/[mysqld]server-id=2gtid-mode=ONenforce-gtid-consistency=ON |
3、启动 2 个 MYSQL：mysql-master 、mysql-slave
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docker run -d \--name mysql-master \--network common-network \-e MYSQL_ROOT_PASSWORD=Passw0rd \-v `pwd`/master.cnf:/etc/mysql/my.cnf \-p 3306:3306 \-d mysql:5.7 |
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docker run -d \--name mysql-slave \--network common-network \-e MYSQL_ROOT_PASSWORD=Passw0rd \-v `pwd`/slave.cnf:/etc/mysql/my.cnf \-p 3307:3306 \-d mysql:5.7 |
4、添加从库用于复制的用户
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docker run -it --rm --network common-network mysql mysql -hmysql-master -uroot -pPassw0rd \-e "CREATE USER 'repl'@'%' IDENTIFIED BY 'password' REQUIRE SSL; " \-e "GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';" |
5、连接 master & slave
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd \-e "CHANGE MASTER TO MASTER_HOST='mysql-master', MASTER_PORT=3306, MASTER_USER='repl', MASTER_PASSWORD='password', MASTER_AUTO_POSITION=1, MASTER_SSL=1;" \-e "START SLAVE;" |
6、验证 slave 状态
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd -e "show slave status\G" |
如下状态为正常：
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
> 部署 MySQL 8.0 集群 master & slave（仅测试用）
镜像版本 mysql:8.0
1、创建 overlay 网络
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docker network create --driver overlay common-network --attachable |
2、启动 2 个 MYSQL：mysql-master 、mysql-slave
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docker run -d \--name mysql-master \--network common-network \-e MYSQL_ROOT_PASSWORD=Passw0rd \-p 3306:3306 \-d mysql --default-authentication-plugin=mysql_native_password |
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docker run -d \--name mysql-slave \--network common-network \-e MYSQL_ROOT_PASSWORD=Passw0rd \-p 3307:3306 \-d mysql --default-authentication-plugin=mysql_native_password |
3、配置 master & slave
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docker run -it --rm --network common-network mysql mysql -hmysql-master -uroot -pPassw0rd \-e "SET PERSIST server_id=1;" \-e "SET PERSIST_ONLY gtid_mode=ON;" \-e "SET PERSIST_ONLY enforce_gtid_consistency=true; " \-e "CREATE USER 'repl'@'%' IDENTIFIED BY 'password' REQUIRE SSL; " \-e "GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';" |
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd \-e "SET PERSIST server_id=2;" \-e "SET PERSIST_ONLY gtid_mode=ON;" \-e "SET PERSIST_ONLY enforce_gtid_consistency=true; " |
4、重启 master & slave
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docker restart mysql-master mysql-slave |
5、连接 master & slave
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd \-e "CHANGE MASTER TO MASTER_HOST='mysql-master', MASTER_PORT=3306, MASTER_USER='repl', MASTER_PASSWORD='password', MASTER_AUTO_POSITION=1, MASTER_SSL=1;" \-e "START SLAVE;" |
6、验证 slave 状态
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd -e "show slave status\G" |
如下状态为正常：
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
> 验证数据同步
在 master 创建数据库 anoyi
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docker run -it --rm --network common-network mysql mysql -hmysql-master -uroot -pPassw0rd \ -e "create database anoyi default character set utf8mb4 collate utf8mb4_general_ci;" |
在 slave 查看数据库列表
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docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd \ -e "show databases;"mysql: [Warning] Using a password on the command line interface can be insecure.+--------------------+| Database |+--------------------+| anoyi || information_schema || mysql || performance_schema || sys |+--------------------+ |
相关资料：
mysql 5.7： https://dev.mysql.com/doc/refman/5.7/en/replication.html
mysql 8.0： https://dev.mysql.com/doc/refman/8.0/en/replication.html
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://www.jianshu.com/p/6194106cdd05
