首先附上官方文档安装说明地址：
https://dev.mysql.com/doc/refman/8.0/en/linux-installation-yum-repo.html

接下来开始我们的安装之旅：
首先下载rpm安装包：https://dev.mysql.com/downloads/repo/yum/

•  执行yum localinstall mysql80-community-release-el7-{version-number}.noarch.rpm
  

•   执行yum install mysql-community-server  -y
  

3. 启动mysql

•   systemctl   start   mysqld
  

4.  查看生成的临时密码
    grep  'temporary password'  /var/log/mysqld.log
   

5.  连接mysql mysql -uroot -p  输入临时密码
   

6.  修改root账号密码：
   alter   user  user()  identified by "*******";
   flush privileges；
   

7. 允许远程使用root帐户
   use mysql;
   UPDATE user SET host = '%' WHERE user ='root';
   FLUSH PRIVILEGES;
   

8.  允许远程访问MySQL数据库
   添加配置：vim   /etc/my.cnf
   character_set_server = utf8mbp4
   bind-address = 0.0.0.0