MySQL Gem Installation Under RedHat Enterprise Linux

Posted by Tres Mon, 03 Nov 2008 09:34:00 GMT

Installing the mysql Gem under RHEL/CentOS requires you to specify where MySQL is installed. Just point Gem to the mysql-config bin & you’re good to go:

gem install mysql -- --with-mysql-config=/usr/bin/mysql_config

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Editing Lines In Configuration Files Via CFEngine

Posted by Tres Fri, 07 Jul 2006 13:56:00 GMT

The easiest way to make sure that your configuration files have the right stuff in them is to use CFEngine’s editfiles: section to remove unwanted lines, and to add lines to them.

The following shows how to remove lines from /etc/rc.conf by using CFEngine’s DeleteLinesContaining command:

editfiles:
    
  serviceadd::
      
{
/etc/rc.conf
DeleteLinesContaining "lpd_enable=\"YES\""
}

This next example shows how to add a line to a file via CFEngine if the line doesn’t already exist in the file:

editfiles:
    
  serviceadd::
      
{
/etc/rc.conf
AppendIfNoSuchLine "cloned_interfaces=\"vlan299 vlan301 carp0\""
}

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