使用docker-compose搭建mysql主从详细过程

mkdir -p /data/mysql-master/{conf,data}

cd /data/mysql-master/conf

mkdir -p /data/mysql-slave/{conf,data}

cd /data/mysql-slave/conf

cd /usr/ocal/bin

chmod +x /usr/local/bin/docker-compose

# 版本号
version: '3'
# 定义服务
services:
  # 服务名
  mysql-master:
    # 容器名称
    container_name: mysql-master
    # 镜像
    image: mysql/mysql-server:5.7
    # 重启
    restart: always
    # 提供伪终端
    tty: true
    # root具备管理员权限
    privileged: true
    # 环境变量
    environment:
      MYSQL_ROOT_PASSWORD: 123456
    # 数据卷(目录映射)
    volumes:
      - /data/mysql-master/conf/my.cnf:/etc/my.cnf
      - /data/mysql-master/data:/var/lib/mysql
    # 网络
    networks:
      mynetwork:
        ipv4_address: 172.19.0.3
  # 服务名
  mysql-slave:
    # 容器名称
    container_name: mysql-slave
    # 镜像
    image: mysql/mysql-server:5.7
    # 重启
    restart: always
    # 提供伪终端
    tty: true
    # root具备管理员权限
    privileged: true
    # 环境变量
    environment:
      MYSQL_ROOT_PASSWORD: 123456
    # 数据卷(目录映射)
    volumes:
      - /data/mysql-slave/conf/my.cnf:/etc/my.cnf
      - /data/mysql-slave/data:/var/lib/mysql
    # 网络
    networks:
      mynetwork:
        ipv4_address: 172.19.0.4
# 定义所需要的网络
networks:
  mynetwork:
    driver: bridge
    ipam:
      config:
        - subnet: 172.19.0.0/16

mkdir mysql

docker-compose -f docker-composemysql.yml config -q

 docker-compose -f docker-composemysql.yml up -d

 docker exec -it mysql-master /bin/sh

mysql -u root -p

 show master status;

    grant all privileges on *.* to root@'%' identified by '123456';
    flush privileges;

docker exec -it mysql-slave /bin/bash

mysql -u root -p

CHANGE MASTER TO MASTER_HOST='172.19.0.3', MASTER_PORT=3306, MASTER_USER='root',
MASTER_PASSWORD='123456', MASTER_LOG_FILE='mysql-bin.000003', MASTER_LOG_POS=154;

master_host='172.19.0.3' // 这里填master主机ip，除了填写住宿主机IP，还可以填写bridge网络中的IP
master_log_file='mysql-bin.000005', // 这里填写 File 的值就是前面我们show master status;命令的执行结果
master_log_pos=154;// 这里填写 Position 的值就是前面我们show master status;命令的执行结果

start slave;

show slave status\G

create databse test;

show databases;

create database crm;

 cd /data/mysql-master/data

use crm;

set names utf8;

 source /var/lib/mysql/crm.sql;