Ubuntu SQL database

updated: 2017-08-19 08:38

Ubuntu SQL database¶

Most OpenStack services use an SQL database to store information. The database typically runs on the controller node. The procedures in this guide use MariaDB or MySQL depending on the distribution. OpenStack services also support other SQL databases including PostgreSQL.

Poznámka

As of Ubuntu 16.04, MariaDB was changed to use the „unix_socket Authentication Plugin“. Local authentication is now performed using the user credentials (UID), and password authentication is no longer used by default. This means that the root user no longer uses a password for local access to the server.

Instalace a nastavení součástí¶

Nainstalujte balíčky:

# apt install mariadb-server python-pymysql

Create and edit the /etc/mysql/mariadb.conf.d/99-openstack.cnf file and complete the following actions:
- Create a [mysqld] section, and set the bind-address key to the management IP address of the controller node to enable access by other nodes via the management network. Set additional keys to enable useful options and the UTF-8 character set:
```
[mysqld]
bind-address = 10.0.0.11

default-storage-engine = innodb
innodb_file_per_table = on
max_connections = 4096
collation-server = utf8_general_ci
character-set-server = utf8
```

Dokončení instalace¶

Restartujte službu databáze:
```
# service mysql restart
```

Secure the database service by running the mysql_secure_installation script. In particular, choose a suitable password for the database root account:
```
# mysql_secure_installation
```

updated: 2017-08-19 08:38

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