HomebrewでMySQL設定

- 設置可能なMySQL確認

% brew search mysql
==> Formulae
automysqlbackup            mysql++                    mysql-client@5.7           mysql-sandbox              mysql@5.6                  mysqltuner
mysql                      mysql-client               mysql-connector-c++        mysql-search-replace       mysql@5.7                  qt-mysql

- 設置可能なバージョン確認

% brew info mysql
==> mysql: stable 8.0.31 (bottled)
Open source relational database management system
https://dev.mysql.com/doc/refman/8.0/en/
Conflicts with:
  mariadb (because mysql, mariadb, and percona install the same binaries)
  percona-server (because mysql, mariadb, and percona install the same binaries)
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/mysql.rb
License: GPL-2.0-only with Universal-FOSS-exception-1.0
==> Dependencies
Build: cmake ✘, pkg-config ✘
Required: icu4c ✔, libevent ✘, libfido2 ✘, lz4 ✔, openssl@1.1 ✔, protobuf ✘, zlib ✘, zstd ✔
==> Caveats
We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

MySQL is configured to only allow connections from localhost by default

To connect run:
    mysql -u root

To restart mysql after an upgrade:
  brew services restart mysql
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/mysql/bin/mysqld_safe --datadir=/opt/homebrew/var/mysql
==> Analytics
install: 62,741 (30 days), 275,550 (90 days), 1,140,321 (365 days)
install-on-request: 62,624 (30 days), 274,900 (90 days), 1,137,187 (365 days)
build-error: 164 (30 days)

- MySQLのインストール

% brew install mysql
Running `brew update --auto-update`...
==> Auto-updated Homebrew!
Updated 2 taps (homebrew/core and homebrew/services).
==> New Formulae
kubent                                                ruby@3.1                                              video-compare

You have 3 outdated formulae installed.
You can upgrade them with brew upgrade
or list them with brew outdated.

==> Fetching dependencies for mysql: libevent, libcbor, libfido2, protobuf and zlib
==> Fetching libevent
..
..

We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

MySQL is configured to only allow connections from localhost by default

To connect run:
    mysql -u root

To restart mysql after an upgrade:
  brew services restart mysql
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/mysql/bin/mysqld_safe --datadir=/opt/homebrew/var/mysql

- 設置バージョン確認

% mysql --version
mysql  Ver 8.0.31 for macos13.0 on arm64 (Homebrew)

- MySQLサービス起動

% brew services restart mysql
==> Successfully started `mysql` (label: homebrew.mxcl.mysql)

- MySQLサービス停止

% brew services stop mysql   
Stopping `mysql`... (might take a while)
==> Successfully stopped `mysql` (label: homebrew.mxcl.mysql)

- セキュリティの設定

% mysql_secure_installation

Securing the MySQL server deployment.

Enter password for user root:   <= enterの場合
Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

=> MySQLサービスが起動しないためエラー発生したらMySQLサービス再開始してセキュリティ設定する

・MySQL サービス開始
 % brew services restart mysql
==> Successfully started `mysql` (label: homebrew.mxcl.mysql)

% mysql_secure_installation  

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD COMPONENT can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD component?

Press y|Y for Yes, any other key for No: y

There are three levels of password validation policy:

LOW    Length >= 8
MEDIUM Length >= 8, numeric, mixed case, and special characters
STRONG Length >= 8, numeric, mixed case, special characters and dictionary                  file

Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 1
Please set the password for root here.

New password:           <= Macのパスワードと同じ

Re-enter new password: 

Estimated strength of the password: 100 
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL 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? (Press y|Y for Yes, any other key for No) : 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? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL 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? (Press y|Y for Yes, any other key for No) : 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? (Press y|Y for Yes, any other key for No) : y
Success.

All done! 

- 設定したパスワードを使ってMySQLにログイン

% mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 8.0.31 Homebrew

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

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

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