Detailed tutorial on installing MySQL 8.0 from source code on CentOS 7.4

 yum -y install wget cmake gcc gcc-c++ ncurses ncurses-devel libaio-devel openssl openssl-devel

 wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-boost-8.0.11.tar.gz (this version comes with boost)

 groupadd mysql
    useradd -r -g mysql -s /bin/false mysql

   mkdir -p /usr/local/mysql
   mkdir -p /data/mysql

tar -zxf mysql-boost-8.0.11.tar.gz -C /usr/local

   cd /usr/local/mysql-8.0.11
   cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data -DSYSCONFDIR=/etc -DMYSQL_TCP_PORT=3306 -DWITH_BOOST=/usr/local/mysql-8.0.11/boost 
   make && make install

cat /etc/my.cnf
   [mysqld]
   server-id=1
   port=3306
   basedir=/usr/local/mysql
   datadir=/data/mysql
   ##Please add parameters according to the actual situation

chown -R mysql:mysql /usr/local/mysql
   chown -R mysql:mysql /data/mysql
   chmod 755 /usr/local/mysql -R
   chmod 755 /data/mysql -R

bin/mysqld --initialize --user=mysql --datadir=/data/mysql/
   bin/mysql_ssl_rsa_setup

 bin/mysqld_safe --user=mysql &

  bin/mysql -uroot -p
   mysql> alter user 'root'@'localhost' identified by "123456";
    mysql> show databases;
    +--------------------+
    | Database |
    +--------------------+
    | information_schema |
    |mysql |
    | performance_schema |
    |sys|
    +--------------------+
    4 rows in set (0.00 sec)
    ##Add a remote special account mysql> create user root@'%' identified by '123456';
    Query OK, 0 rows affected (0.08 sec)
    mysql> grant all privileges on *.* to root@'%';
    Query OK, 0 rows affected (0.04 sec)
    mysql> flush privileges;
    Query OK, 0 rows affected (0.01 sec)

 ln -s /usr/local/mysql/bin/* /usr/local/bin/
    mysql -h 127.0.0.1 -P 3306 -uroot -p123456 -e "select version();"
    mysql: [Warning] Using a password on the command line interface can be insecure.
    +-----------+
    | version() |
    +-----------+
    | 8.0.11 |
    +-----------+

 cp support-files/mysql.server /etc/init.d/mysql.server