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Puppet module to manage mysql
Home Page: http://www.immerda.ch
This project forked from duritong/puppet-mysql-legacy
Puppet module to manage mysql
Home Page: http://www.immerda.ch
Introduction/Notes ================== This module manages your mysql resources. Requirements ------------ If you are wanting munin integration, you will need the munin module installed. If you are wanting shorewall integration, you will need the shorewall module installed. If you are wanting nagios integration, you will need the nagios module installed, specifically it must have nagios::plugin::deploy functionality. You will need to have activated storedconfigs on the puppetmaster. Special Notes ============= By using this module, the following users will be automatically removed, if they exist: "root@${fqdn}", "[email protected]", "@${fqdn}", "@localhost", "@%" If you require any of these, you can subclass class mysql::server::account_security to override this. Mysql Server ============ On a node where you wish to have a mysql server installed, you should include mysql::server, for example: node foo { class{'mysql::server': root_password => 'foo', } } This will manage the necessary directories and configuration files, it will install the mysql client program and set the root password to 'foo', along with setting a /root/.my.cnf for various module operations. It will also make sure the mysql service is running, and setup all the databases, users and grant tables. The my.cnf file will installed from one of many possible places, see manifests/server/base.pp for possible locations for managing this. Backups ------- If you wish to automatically setup a cronjob to backup your databases, you can set the "$mysql_backup_cron = true" variable. This will setup a cronjob to do a mysqldump at 1am of all the databases on the system and put them in /var/backups/mysql by default. You can override this location by specifying $mysql_backup_dir. Optimizing tables ----------------- If you wish mysql to periodically optimize tables, set the "$mysql_optimize_cron = true" variable before you include mysql::server. Munin ----- If you wish to use munin you need to set the variables use_munin to "true" in hiera, before you include mysql::server. This will be used to setup a mysql user for munin, with reduced privileges to allow for the various munin graphs to be setup and queried. The munin graphs are: mysql_bytes, mysql_queries, mysql_slowqueries and mysql_threads. NOTE: The munin_mysql_password will be taken from what you passed to the mysql::server class, but it is not necessary on Debian systems as it will handled with Debian's /etc/mysql/debian.cnf. Nagios ------ If you wish nagios to check mysql, you should set the variable "use_nagios" to "true" in hiera along with the "nagios_check_mysql" variable to "true". A password for the nagios mysql user will be created for you with reduced privileges used only for nagios checks. This will be what you passed as nagios_password_hash to mysql::server and should be a mysql md5 hash. These should be set before you include mysql::server. Unless you specify otherwise, the default nagios check which will be performed is the basic 'check_mysql' nagios plugin which simply tests connectivity to a MySQL server. You can specify more advanced mysql health checks as follows: mysql::server::nagios::check_health { [ 'connection-time', 'uptime', 'threads-connected', 'slave-lag', 'slave-io-running', 'slave-sql-running' ]: } See the files/nagios/check_mysql_health script for the various mysql health checks that you can perform. Additionally, see the define "check_health" in manifests/server/nagios.pp for various options that you can pass to check_health. Firewall -------- If you wish to have firewall rules setup automatically for you, using shorewall, you will need to set the hiera variable "use_shorewall" to "true". See the shorewall module for more information about how this works. Client ====== On a node where you wish to have the mysql client managed, you can 'include mysql::client' in the node definition. This will install the appropriate package. You can also 'include mysql::client::ruby' if you want the 'libmysql-ruby' libraries installed.
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