# pkg_add mariadb-server
# rcctl enable mysqld

# mysql_install_db

# rcctl start mysqld

# mysql_secure_installation
# # いくつかの質問に答える必要があります

$ doas pkg_add mariadb-server

quirks-6.122 signed on 2023-09-01T21:25:11Z
mariadb-server-10.9.4v1:(...): ok
mariadb-server-10.9.4v1: ok
The following new rcscripts were installed: /etc/rc.d/mysqld
See rcctl(8) for details.
New and changed readme(s):
    /usr/local/share/doc/pkg-readmes/mariadb-server

$ doas rcctl enable mysqld

$ doas mysql_install_db

WARNING: The host '(...)' could not be looked up with /usr/local/bin/resolveip.
This probably means that your libc libraries are not 100 % compatible
with this binary MariaDB version. The MariaDB daemon, mysqld, should work
normally with the exception that host name resolving will not work.
This means that you should use IP addresses instead of hostnames
when specifying MariaDB privileges !
Installing MariaDB/MySQL system tables in '/var/mysql' ...
OK


Two all-privilege accounts were created.
One is root@localhost, it has no password, but you need to
be system 'root' user to connect. Use, for example, sudo mysql
The second is _mysql@localhost, it has no password either, but
you need to be the system '_mysql' user to connect.
After connecting you can set the password, if you would need to be
able to connect as any of these users with a password and without sudo

See the MariaDB Knowledgebase at https://mariadb.com/kb

You can start the MariaDB daemon with:
/etc/rc.d/mysqld start

Please report any problems at https://mariadb.org/jira

The latest information about MariaDB is available at https://mariadb.org/.

Consider joining MariaDB's strong and vibrant community:
https://mariadb.org/get-involved/

$ doas rcctl start mysqld
mysqld(ok)

$ doas mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
haven't set the root password yet, you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password or using the unix_socket ensures that nobody
can log into the MariaDB root user without the proper authorisation.

You already have your root account protected, so you can safely answer 'n'.

Switch to unix_socket authentication [Y/n] n
 ... skipping.

You already have your root account protected, so you can safely answer 'n'.

Change the root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

$ doas rcctl check mysqld
mysqld(ok)

$ mysql -u root -p

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.9.4-MariaDB OpenBSD port: mariadb-server-10.9.4v1

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]>

-- データベースを作成
CREATE DATABASE <database> \
    CHARACTER SET utf8mb4 \
    COLLATE utf8mb4_unicode_ci;

-- そのデータベース用のユーザーを作成
GRANT ALL PRIVILEGES \
    ON <database>.* \
    TO <dbuser>@'localhost' \
    IDENTIFIED BY '<dbpass>';

-- 権限をリロード
FLUSH PRIVILEGES;