一、安装mysql5.7.30主库
1.准备docker和docker-compose环境
docker官网安装教程：https://docs.docker.com/engin...
docker-compose 官网安装教程: https://docs.docker.com/compo...
2.创建yml目录，相关数据挂载
#yml存放的目录
mkdir -p /root/docker-compse/mysql
#主库的/var/lib/mysql 数据的挂载目录
mkdir -p /data/mysql5matser
#不用slave 了，用replication的缩写replic , slave 是奴隶的意思，在美国有种族歧视的之嫌
#从库的/var/lib/mysql 数据的挂载目录
mkdir -p /data/mysql5replic
3.创建网络空间，配置时区
docker network create mysql-replic
echo 'Asia/Shanghai' > /etc/timezone4.提前准备好所需镜像
docker pull mysql:5.7.305.主库/root/docker-compse/mysql/master.yml
version: '3.7'
services:
#主库服务名称
mysql-master:
#容器名称
container_name: mysql-master
#镜像名称 提前 docker pull mysql:5.7.30 不然会很慢
image: mysql:5.7.30
#docker 重启后容器重启
restart: always
#选择自建bridge网络
networks:
- mysql_replic
#mysql 参数配置 my.cnf里面的配置，这里简单配置下，可以配置volumes /etc/my.cnf:/etc/my.cnf
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_general_ci --server-id=1 --log-bin=mysql-bin
environment:
- TZ=Asia/Shanghai
#默认密码配置 123456 修改成您的密码
- MYSQL_ROOT_PASSWORD=123456
ports:
- 3307:3306
volumes:
- /etc/localtime:/etc/localtime
- /etc/timezone:/etc/timezone
#挂载目录 /var/lib/mysql 是mysql的数据
- /data/mysql5matser:/var/lib/mysql
#配置网络
networks:
mysql_replic:
name: mysql_replic
#强制使用已经创建好的网络，不然报错
external: true6.启动主库
docker-compose -f master.yml up -d7.进入容器，登录主库
#进入docker
docker exec -it mysql-master bash
#进入docker的mysql
mysql -uroot -p
#输入密码8.创建同步账号replic,授权同步权限,查看主库状态信息
-- 创建同步账号
CREATE USER 'replic'@'%' IDENTIFIED BY '123456';
-- 授权权限
GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'replic'@'%';
-- 查看主节点状态
show master status;
-- 数据的结果
-- +------------------+----------+--------------+------------------+-------------------+
-- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
-- +------------------+----------+--------------+------------------+-------------------+
-- | mysql-bin.000003 | 619 | | | |
-- +------------------+----------+--------------+------------------+-------------------+二、安装mysql5.7从库，同步主库数据
1.从库/root/docker-compse/mysqlreplic.yml
version: '3.7'
services:
#从库服务名称
mysql-replic:
#容器名称
container_name: mysql-replic
#镜像名称 提前 docker pull mysql:5.7.30 不然会很慢
image: mysql:5.7.30
#docker 重启后容器重启
restart: always
#选择自建bridge网络
networks:
- mysql_replic
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_general_ci --server-id=2 --log-bin=mysql-slave-bin --relay_log=ep-mysql-relay-bin --read_only=1
environment:
#时区
- TZ=Asia/Shanghai
#默认密码配置
- MYSQL_ROOT_PASSWORD=123456
volumes:
- /etc/localtime:/etc/localtime
- /etc/timezone:/etc/timezone
#挂载目录 /var/lib/mysql 是数据盘
- /data/mysql5replic:/var/lib/mysql
ports:
- 3308:3306
#配置网络
networks:
mysql_replic:
name: mysql_replic
#强制使用已经创建好的网络，不然报错
external: true2.启动从库
docker-compose -f replic.yml up -d
#不用管 提醒
#WARNING: Found orphan containers (mysql-master) for this project. If you removed or renamed this service in your compose file, you can run this command with the --remove-orphans flag to clean it up.3.进入容器，登录从库
#进入容器
docker exec -it mysql-replic bash
#登录mysql
mysql -uroot -p
#输入密码4.同步脚本
-- 查看从库状态
show slave status ;
-- 第一次安装执行会返回
-- Empty set (0.00 sec)
-- 同步设置
change master to master_host='mysql-master', master_user='replic', master_password='123456', master_port=3306, master_log_file='mysql-bin.000003', master_log_pos=619;
-- 启动同步
start slave;
-- 查看同步结果
show slave status \G;
-- *************************** 1. row ***************************
-- Slave_IO_State: Waiting for master to send event
-- Master_Host: mysql-master
-- Master_User: replic
-- Master_Port: 3306
-- Connect_Retry: 60
-- Master_Log_File: mysql-bin.000003
-- Read_Master_Log_Pos: 619
-- Relay_Log_File: ep-mysql-relay-bin .000002
-- Relay_Log_Pos: 320
-- Relay_Master_Log_File: mysql-bin.000003
-- Slave_IO_Running: Yes
-- Slave_SQL_Running: Yes
-- Replicate_Do_DB:
-- Replicate_Ignore_DB:
-- Replicate_Do_Table:
-- Replicate_Ignore_Table:
-- Replicate_Wild_Do_Table:
-- Replicate_Wild_Ignore_Table:
-- Last_Errno: 0
-- Last_Error:
-- Skip_Counter: 0
-- Exec_Master_Log_Pos: 619
-- Relay_Log_Space: 532
-- Until_Condition: None
-- Until_Log_File:
-- Until_Log_Pos: 0
-- Master_SSL_Allowed: No
-- Master_SSL_CA_File:
-- Master_SSL_CA_Path:
-- Master_SSL_Cert:
-- Master_SSL_Cipher:
-- Master_SSL_Key:
-- Seconds_Behind_Master: 0
-- Master_SSL_Verify_Server_Cert: No
-- Last_IO_Errno: 0
-- Last_IO_Error:
-- Last_SQL_Errno: 0
-- Last_SQL_Error:
-- Replicate_Ignore_Server_Ids:
-- Master_Server_Id: 1
-- Master_UUID: b2353e18-8d00-11ea-9de4-0242ac170002
-- Master_Info_File: /var/lib/mysql/master.info
-- SQL_Delay: 0
-- SQL_Remaining_Delay: NULL
-- Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
-- Master_Retry_Count: 86400
-- Master_Bind:
-- Last_IO_Error_Timestamp:
-- Last_SQL_Error_Timestamp:
-- Master_SSL_Crl:
-- Master_SSL_Crlpath:
-- Retrieved_Gtid_Set:
-- Executed_Gtid_Set:
-- Auto_Position: 0
-- Replicate_Rewrite_DB:
-- Channel_Name:
-- Master_TLS_Version:
5.成功标志
-- 表示同步成功
-- Slave_IO_Running: Yes
-- Slave_SQL_Running: Yes三、检查主从同步
1.进入主库创建一个数据库
create database test;
show databases;
-- 输出
-- +--------------------+
-- | Database |
-- +--------------------+
-- | information_schema |
-- | mysql |
-- | performance_schema |
-- | sys |
-- | test |.主库创建只读账号，供从库只读使用
grant select on *.* TO 'view'@'%' identified by '123456';
-- 从库修改数据会
--1290 - The MySQL server is running with the --read-only option so it cannot execute this statement3.进入从库查看
show databases;
-- 输出
-- +--------------------+
-- | Database |
-- +--------------------+
-- | information_schema |
-- | mysql |
-- | performance_schema |
-- | sys |
-- | test |
四、卸载mysql主从
1.删除容器
#删除从库容器
docker-compose -f replic.yml down
#删除主库容器
docker-compose -f master.yml down2.删除数据(谨慎使用此命令)
rm -rf /data/mysql5matser
rm -rf /data/mysql5replicPS:如果疑问留言，如果对您有用，请点赞支持
上一篇单机版安装Centos7.x 安装/卸载 mysql5.7.x rpm 方式
下期预告 springboot mybatis druid 实现读写分离
参考文档
dockerhub -mysql https://hub.docker.com/_/mysql
dockerhub-mysql-gitlub https://github.com/docker-lib...
docker文档 https://docs.docker.com/engin...
docker-compose文档 https://docs.docker.com/compo...