I’ve set up MySQL enough times figuring things out from docs that I decided I need to take notes.

This is a destructive re-install. Don’t do this if you value your data. In fact, just don’t do this.

Cleanup after old installs.

sudo systemctl stop mysqld.service
sudo yum erase mysql mariadb-libs
#remove files that have the vestiges of old installs
sudo rm -rf  /var/lib/mysql/
sudo rm -rf /etc/mysql/conf.d/
sudo rm -rf /etc/my.cnf.d/
sudo rm -rf /etc/my.cnf

#Install
sudo yum install mysql-server
# run the server
sudo systemctl start mysqld.service
#create a db
sudo mysqladmin create keystone

Connect to the database as root to do the basics. Yes, this could be scripted from the command line:

To Create a user for ayoung

$ sudo mysql keystone
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 5.5.39-MariaDB-wsrep MariaDB Server, wsrep_25.10.r4014

Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

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

MariaDB [keystone]> CREATE USER 'ayoung'@'localhost' IDENTIFIED BY 'password';
Query OK, 0 rows affected (0.00 sec)

MariaDB [keystone]> GRANT ALL PRIVILEGES ON * . * TO 'ayoung'@'localhost';
Query OK, 0 rows affected (0.00 sec)

MariaDB [keystone]> 

Log in as ayoung

$ mysql keystone --password
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 14
Server version: 5.5.39-MariaDB-wsrep MariaDB Server, wsrep_25.10.r4014

Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

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

MariaDB [keystone]>