openstack/openstack-manuals
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openstack-manuals/doc/install-guide/source/environment-sql-database-ubuntu.rst
Doug Hellmann e39304d4ae fix pdf build 
The PDF build does not include content multiple times if the same file
is included in a toctree more than once. That means we need to
restructure the guide to handle the common parts differently. This
approach merges some of the previously split sections back together
using inline prose to indicate where minor variations apply for
different operating systems but retaining separate files for cases where
the differences are significant.

Change-Id: I5d9ff549b05ca4ce54486719d70858589b8fcfa3
Depends-On: Ia750cb049c0f53a234ea70ce1f2bbbb7a2aa9454
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
2017-07-03 08:46:57 -04:00

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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.

Note

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.

Install and configure components

  1. Install the packages:
# apt install mariadb-server python-pymysql
  1. 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

Finalize installation

  1. Restart the database service:

    # service mysql restart

  2. 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