centos7快速部署MySQL8

一、yum安装

wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
rpm -Uvh mysql80-community-release-el7-3.noarch.rpm
yum install mysql-community-server
systemctl start mysqld
grep 'temporary password' /var/log/mysqld.log
2024-12-20T05:25:02.131962Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: f-?*e_fT_4hv #就是初始密码

二、二进制安装

#https://downloads.mysql.com/archives/community/ 官方文档，可以选择平台及版本
wget https://cdn.mysql.com/archives/mysql-8.0/mysql-8.0.25-linux-glibc2.12-x86_64.tar.xz
tar xf mysql-8.0.25-linux-glibc2.12-x86_64.tar.xz -C /usr/local
cd  /usr/local
mv mysql-8.0.25-linux-glibc2.12-x86_64/ mysql-8.0.25
cd  mysql-8.0.25
useradd -s /sbin/nologin -M mysql
chown -R mysql.mysql /usr/local/mysql-8.0.25/

vim /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
log-error=/var/log/mysqld.log
character-set-server=utf8mb4                          
default-storage-engine=INNODB                               
[client]                                                     
port=3306                              
default-character-set=utf8mb4

vim .bash_profile
PATH=/usr/local/mysql-8.0.25/bin/:$PATH:$HOME/bin
. .bash_profile

mkdir /var/lib/mysql && chown -R mysql.mysql /var/lib/mysql
mysqld --initialize --console --user=mysql
cd support-files/ ./mysql.server start 
grep 'temporary password' /var/log/mysqld.log

三、修改密码及创建用户并授权

mysql -hlocalhost -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Fhk6P$TCwr&8T6mK'; #修改root密码及授权远程登录
UPDATE mysql.user SET host='%' WHERE user='root';

CREATE USER 'user01'@'%' IDENTIFIED BY 'Fhk6P$TCwr&8T6mK';  #新建用户及授权
GRANT ALL PRIVILEGES ON *.* TO 'user01'@'%' WITH GRANT OPTION;
flush privileges;