Puppet Class: monit::boot

Inherits:
monit::params
Defined in:
manifests/boot.pp

Overview

Class: monit::boot

Monitor the size of the /boot directory and, by default, take proactive measures to clean it up. This is very useful on Ubuntu instances set to auto-update, as they tend to accumulate lots of useless kernel images and kernel headers which exhaust not only diskspace (on /boot), but also inodes on virtualization platforms such as AWS EC2.

Parameters

threshold

Alert if directory size grows above this value in megabytes.

exec_cmd

Command to run when threshold is reached. The default command to run when threshold is reached is ‘apt-get -y autoremove’ (on Debian derivatives) or ‘yum -y autoremove’ (on RedHat derivatives). On FreeBSD no command is run. Set to undefined to not run any command.

Parameters:

  • threshold (Integer) (defaults to: 300)
  • exec_cmd (Optional[String]) (defaults to: undef) 


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# File 'manifests/boot.pp', line 20

class monit::boot
(
    Integer          $threshold = 300,
    Optional[String] $exec_cmd = undef

) inherits monit::params
{
    $active_exec_cmd = $exec_cmd ? {
        undef   => $::monit::params::boot_cleanup_cmd,
        default => $exec_cmd,
    }

    monit::directory { '/boot':
        ensure    => 'present',
        path      => '/boot',
        dirname   => 'boot',
        threshold => $threshold,
        exec_cmd  => $active_exec_cmd,
    }
}