参考并感谢
下载mysql镜像(不带tag标签则表示下载latest版本)
docker pull mysql/mysql-server
配置my.cnf 文件
my.cnf文件参考nginx的临时方案,从容器中拷贝出来
# 主库
[mysqld]
log-bin=mysql-bin # [必须]启用二进制日志
server-id=1 # [必须]服务器唯一ID,默认是1,一般取IP最后一段,这里看情况分配
# 从库
[mysqld]
log-bin=mysql-bin # [必须]启用二进制日志
server-id=2 # [必须]服务器唯一ID,默认是1,一般取IP最后一段,这里看情况分配启动 mysql 主库
docker run -d \
-p 3306:3306 \
--privileged=true \
-e MYSQL_ROOT_PASSWORD="Mypwd@123456" \
--name mysql3306 \
--mount type=bind,source=/var/docker/configs/mysql/3306/my.cnf,target=/etc/my.cnf \
--mount type=bind,source=/var/docker/datas/mysql/3306,target=/var/lib/mysql \
--restart always \
mysql/mysql-server:latest启动 mysql 从库
docker run -d \
-p 3307:3306 \
--privileged=true \
-e MYSQL_ROOT_PASSWORD="Mypwd@123456" \
--name mysql3307 \
--mount type=bind,source=/var/docker/configs/mysql/3307/my.cnf,target=/etc/my.cnf \
--mount type=bind,source=/var/docker/datas/mysql/3307,target=/var/lib/mysql \
--restart always \
mysql/mysql-server:latest开放mysql端口并立即生效
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --zone=public --add-port=3307/tcp --permanent
firewall-cmd --reload登录主库
docker exec -it mysql3306 bash
mysql -u root -p
Mypwd@123456
# 主库创建同步用户
CREATE USER 'repl'@'%' IDENTIFIED WITH mysql_native_password BY 'Mypwd@123456';
# 主库给同步用户授权
GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';
# 主库创建用户并配置读写权限
CREATE USER 'madmars'@'%' IDENTIFIED WITH mysql_native_password BY 'Mypwd@123456';
GRANT ALL PRIVILEGES ON *.* TO 'madmars'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
# 查询主库状态,并记录 File 的值和 Position 的值
SHOW MASTER STATUS;登录从库
docker exec -it mysql3307 bash
mysql -u root -p
Mypwd@123456
# 配置slave (master_log_file 和 master_log_pos 是主库的file和position值)
change master to
master_host='172.17.0.1',
master_user='repl',
master_log_file='mysql-bin.000003',
master_log_pos=1345,
master_port=3306,
master_password='Mypwd@123456';
# 启动salve
START SLAVE;
# 查看slave状态
SHOW SLAVE STATUS\G;
# 从库用户配置只读权限
CREATE USER 'madmarsreadonly'@'%' IDENTIFIED WITH mysql_native_password BY 'Mypwd@123456';
GRANT SELECT ON *.* TO 'madmarsreadonly'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;PS:
- 启动容器之前,需要创建好对应的宿主机的文件目录,宿主机缺少文件会导致容器启动失败
- docker环境部署,如果需要数据库持久化,必须要增加 privileged=true
《(七) Docker 部署 MySql8.0 一主一从 高可用集群》CSDN地址:https://blog.csdn.net/madmarszff/article/details/100904288
《(七) Docker 部署 MySql8.0 一主一从 高可用集群》博客园地址:https://www.cnblogs.com/godzff/p/11530713.html
《(七) Docker 部署 MySql8.0 一主一从 高可用集群》简书地址: