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MySQL introduced some new privileges in Versions > 5.1.6, add them
to our set, so puppet still knows what :all is.
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It would make the daemon fail to load if put in the config.
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The current procedure of setting the root MySQL password leaks the root
password by giving it to the setmysqlpass.sh script on the command line.
This means that during the couple of seconds that the script is
executing, the password is visible in the process list!
Since we're already writing the password in the /root/.my.cnf file, make
the setmysqlpass.sh script parse this file to retrieve the password
instead of receiving it from a command line argument.
Also, in some shells the 'echo' command might appear in the process
list. Use a heredoc notation to create the output without using a
command.
Signed-off-by: Gabriel Filion <lelutin@gmail.com>
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The current procedure of setting the root MySQL password leaks the root
password by giving it to the setmysqlpass.sh script on the command line.
This means that during the couple of seconds that the script is
executing, the password is visible in the process list!
Since we're already writing the password in the /root/.my.cnf file, make
the setmysqlpass.sh script parse this file to retrieve the password
instead of receiving it from a command line argument.
Also, in some shells the 'echo' command might appear in the process
list. Use a heredoc notation to create the output without using a
command.
Signed-off-by: Gabriel Filion <lelutin@gmail.com>
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location of where they are
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Parameter unless failed: 'mysqladmin -uroot status > /dev/null' is both unqualifed and specified no search path at /etc/puppet/modules/mysql/manifests/server/base.pp:62
unless you have set globally:
Exec { path => "/usr/bin:/usr/sbin/:/bin:/sbin:/usr/local/bin:/usr/local/sbin" }
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. mysql_connections
. mysql_qcache
. mysql_qcache_mem
. mysql_size_all
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belongs in the nagios module
. change the default nagios::service::mysql check to use the check_mysql_health 'connection-time' check mode, which is identical to the original check, with some additional information
. stop using nagios::plugin::deploy because this doesn't work when more than one node attempts to realize this class
. stop exporting the nagios_command because this doesn't work when more than one node attempts to realize this class
. remove the check_health define, instead this be how it was before, as the previous nagios::service::mysql define
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This seems to make more sense than using $fqdn
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pre-requisites necessary for the module
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1. use the new plugin deploy feature in nagios (nagios::plugin::deploy)
2. remove unnecessary classes and inheritance - this plugin seems reasonable to install by default, and in fact it could be argued that the other 'check_mysql' plugin that still remains can be removed, as its functionality is vastly overshadowed by this one
3. add the 'repl_client_priv' mysql grant privs to the nagios user. these are needed for the check_mysql_health plugin slave replication modes. According to http://dev.mysql.com/doc/refman/5.0/en/privileges-provided.html#priv_replication-client - The REPLICATION CLIENT privilege enables the use of SHOW MASTER STATUS and SHOW SLAVE STATUS. These privileges are not too much to provide to the nagios user, as they are only informational
4. setup the define "check_health" so it can be used easily
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* create a mysql::server::nagios::base class with the common parts needed for the basic plugin, and the health plugin
* make mysql::server:nagios inherit mysql::server:nagios::base
* create a new class mysql::server::nagios::check_health inheriting ::base
the nagios module has also received a new define to setup the different nagios::service pieces for the different health check modes that might be desired
its assumed you would setup the different health check modes in site-mysql/init.pp as different hosts will require different modes and/or parameters, for example:
class site-mysql::server {
include mysql::server::nagios::check_health
nagios::service::mysql_health { [ 'connection-time', 'uptime', 'threads-connected', 'threadcache-hitrate' ]:
require => Mysql_grant[$nagios_mysql_user],
}
case $hostname {
"eider": {
nagios::service::mysql_health { [ 'slave-io-running', 'slave-sql-running', 'slave-lag' ]:
require => Mysql_grant[$nagios_mysql_user],
}
}
}
}
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Conflicts:
manifests/server/base.pp
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referenced
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larger databases
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a db and a corresponding user with all access to that database.
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the modules dir
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