Many people use phpmyadmin, but we’re going to do this properly to add users, databases and privileges. Heres how I did it.
Please note that this is a work in progress and is not finished yet .

Install httpd and mysql-server

yum install httpd mariadb-server php php-mysql

What you might find is that drupal 8 requires php5.5.9 lets install that;

[root@web-test-centos7 html]# yum install centos-release-scl
[root@web-test-centos7 html]# yum install php55-php-mysqlnd

Open Firewall port 80 http for CentOS

     sudo iptables -I INPUT 1 -p tcp --dport 80 -j ACCEPT
     sudo iptables -I INPUT 1 -p tcp --dport 443 -j ACCEPT

Save firewall rules in CentOS

/etc/init.d/iptables save

Alternatively, save firewall rules Ubuntu

iptables-save > /etc/iptables.rules

Save firewall rules for all other distros

iptables-save > /etc/sysconfig/iptables

Connect to MysQL to configure database user ‘drupal’

# mysql -u root
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 3
Server version: 5.5.47-MariaDB MariaDB Server

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

Create Drupal database

MariaDB [(none)]> create database drupal;

Grant ability to connect with drupal user

MariaDB [(none)]> grant usage on *.* to drupal@localhost identified by '@#@DS45Dfddfdgj334k34ldfk;DF';
Query OK, 0 rows affected (0.00 sec)

Grant all Privileges to the user drupal for database drupal

MariaDB [(none)]> grant all privileges on drupal.* to drupal@localhost;
Query OK, 0 rows affected (0.00 sec)