https://qiita.com/2no553/items/952dbb8df9a228195189
yum localinstall https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
yum info mysql-community-server
yum -y install mysql-community-server
mysqld --version
systemctl enable mysqld.service
systemctl start mysqld.service
systemctl status mysqld.service
cat /var/log/mysqld.log | grep password
mysql_secure_installation
mysql -u root -p
