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README.md
metadata.rb

README.md

MySQL cookbook

The MySQL cookbook exposes the mysql_service and mysql_client resources. These resources are utilized by the mysql::client and mysql::server recipes, or can be consumed in other recipes by depending on the MySQL cookbook.

This cookbook does its best to follow platform native idioms at all times. This means things like logs, pid files, sockets, and service managers work "as expected" by an administrator familiar with a given platform.

Scope

This cookbook is concerned with the "MySQL Community Server", particularly those shipped with F/OSS Unix and Linux distributions. It does not address forks and value-added repackaged MySQL distributions like Drizzle, MariaDB, or Percona.

This cookbook does not try to encompass every single configuration option available for MySQL. Instead, it provides a "just enough" to get a MySQL server running, then allows the user to specify additional custom configuration.

Requirements

  • Chef 11 or higher
  • Ruby 1.9 (preferably from the Chef full-stack installer)

Resources

The resources that ship in this cookbook are examples of 'singleton resources'. This means that there can only be one instance of them configured on a machine. The providers that handle the implementation of the mysql_service and mysql_client resources do so by following platform native idioms. These usually only allow for one instance of a service to be running at a given time.

mysql_service

The mysql_service resource configures the basic plumbing needed to run a simple mysql_service with a minimal configuration.

Please note that when using notifies or subscribes, the resource is mysql_service. This means that this cookbook does not setup service[mysql].

Example

mysql_service 'default' do
  version '5.1'
  port '3307'
  data_dir '/data'
  template_source 'custom.erb'
  allow_remote_root true
  root_network_acl ['10.9.8.7/6', '1.2.3.4/5']
  remove_anonymous_users false
  remove_test_database false
  server_root_password 'decrypt_me_from_a_databag_maybe'
  server_repl_password 'sync_me_baby_one_more_time'
  action :create
end

The version parameter will allow the user to select from the versions available for the platform, where applicable. When omitted, it will install the default MySQL version for the target platform. Available version numbers are 5.0, 5.1, 5.5, and 5.6, depending on platform. See PLATFORMS.md for details.

The port parameter determines the listen port for the mysqld service. When omitted, it will default to '3306'.

The data_dir parameter determines where the actual data files are kept on the machine. This is useful when mounting external storage. When omitted, it will default to the platform's native location.

The template_source parameter allows the user to override the default minimal template used by the mysql_service resource. When omitted, it will select one shipped with the cookbook based on the MySQL version.

The allow_remote_root parameter allows the user to specify whether remote connections from the mysql root user. When set to true, it is recommended that it be used in combination with the root_network_acl parameter. When omitted, it will default to false.

The remove_anonymous_users parameter allows the user to remove anonymous users often installed by default with during the mysql db initialization. When omitted, it defaults to true.

The remove_test_database parameter allows the user to specify whether or not the test database is removed. When omitted, it defaults to true.

The root_network_acl parameter allows the user to specify a list of subnets to accept connections for the root user from. When omitted, it defaults to none.

The server_root_password parameter allows the user to specify the root password for the mysql database. This can be set explicitly in a recipe, driven from a node attribute, or from data_bags. When omitted, it defaults to ilikerandompasswords. Please be sure to change it.

The server_debian_password parameter allows the user to specify the debian-sys-maint users password, used in log rotations and service management on Debian and Debian derived platforms.

The server_repl_password parameter allows the user to specify the password used by 'repl'@'%', used in clustering scenarios. When omitted, it does not create the repl user or set a password.

The mysql_service resource supports :create, :restart, and :reload actions.

mysql_client

The mysql_client resource installs or removes the MySQL client binaries and development libraries

Recipes

mysql::server

This recipe calls a mysql_service resource, passing parameters from node attributes.

mysql::client

This recipe calls a mysql_client resource, with action :create

Usage

The mysql::server recipe and mysql_service resources are designed to provide a minimal configuration. The default my.cnf dropped off has an !includedir directive. Site-specific configuration should be placed in the platform's native location.

run_list

Include 'recipe[mysql::server]' or 'recipe[mysql::client]' in your run_list.

Wrapper cookbook

node.set['mysql']['server_root_password'] = 'yolo'
node.set['mysql']['port'] = '3308'
node.set['mysql']['data_dir'] = '/data'

include_recipe 'mysql::server'

template '/etc/mysql/conf.d/mysite.cnf' do
  owner 'mysql'
  owner 'mysql'      
  source 'mysite.cnf.erb'
  notifies :restart, 'mysql_service[default]'
end

Used directly in a recipe

template '/etc/mysql/conf.d/mysite.cnf' do
  owner 'mysql'
  owner 'mysql'      
  source 'mysite.cnf.erb'
  notifies :restart, 'mysql_service[default]'
end

mysql_service 'default' do
  version '5.5'
  port '3307'
  data_dir '/data'
  template_source 'custom.erb'
  action :create
end

Attributes

default['mysql']['service_name'] = 'default'
default['mysql']['server_root_password'] = 'ilikerandompasswords'
default['mysql']['server_debian_password'] = 'postinstallscriptsarestupid'
default['mysql']['data_dir'] = '/var/lib/mysql'
default['mysql']['port'] = '3306'

### used in grants.sql
default['mysql']['allow_remote_root'] = false
default['mysql']['remove_anonymous_users'] = true
default['mysql']['root_network_acl'] = nil

License & Authors

Copyright:: 2009-2014 Chef Software, Inc

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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