> 部署 MySQL 5.7 集群 master & slave （僅測試用）
鏡像版本 5.7
1、創(chuàng)建 overlay 網(wǎng)絡(luò)
docker network create --driver overlay common-network --attachable
2宗挥、編輯兩個配置文件 master.cnf 與 slave.cnf
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
[mysqld]
log-bin=mysql-bin
server-id=1
gtid-mode=ON
enforce-gtid-consistency=ON
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
[mysqld]
server-id=2
gtid-mode=ON
enforce-gtid-consistency=ON
3乌庶、啟動 2 個 MYSQL：mysql-master 、mysql-slave
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
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契耿、添加從庫用于復(fù)制的用戶
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瞒大、連接 master & slave
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、驗證 slave 狀態(tài)
docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd -e "show slave status\G"
如下狀態(tài)為正常：
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
> 部署 MySQL 8.0 集群 master & slave（僅測試用）
鏡像版本
mysql:8.0
1搪桂、創(chuàng)建 overlay 網(wǎng)絡(luò)
docker network create --driver overlay common-network --attachable
2透敌、啟動 2 個 MYSQL：mysql-master 、mysql-slave
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
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踢械、配置 master & slave
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'@'%';"
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酗电、重啟 master & slave
docker restart mysql-master mysql-slave
5、連接 master & slave
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内列、驗證 slave 狀態(tài)
docker run -it --rm --network common-network mysql mysql -hmysql-slave -uroot -pPassw0rd -e "show slave status\G"
如下狀態(tài)為正常：
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
> 驗證數(shù)據(jù)同步
在 master 創(chuàng)建數(shù)據(jù)庫 anoyi
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 查看數(shù)據(jù)庫列表
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 |
+--------------------+
