Djmitche: Created page with "Hosts - even UNIX - often need to be rebooted to get certain updates. For example, to perform a kernel upgrade or boot-time configuration parameter. It would be bad if puppe..."

2013-09-11T15:49:32Z

Created page with "Hosts - even UNIX - often need to be rebooted to get certain updates. For example, to perform a kernel upgrade or boot-time configuration parameter. It would be bad if puppe..."

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Hosts - even UNIX - often need to be rebooted to get certain updates. For example, to perform a kernel upgrade or boot-time configuration parameter.

It would be bad if puppet did this on its own. Very bad. Humans should do the rebooting, but puppet should let them know which machines need it. That's where this module comes in

= Reasons =

The structure of this module is that a reboot might be required for any of a variety of ''reasons''. Each reason for a reboot has a short name and is detected by a small ruby script.

== Adding New Reasons ==

To add a new reason, add a new file in <tt>modules/needs_reboot/lib/facter/needs_reboot/my_reason.rb</tt>, with the following pattern:
<pre>
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

require 'facter/needs_reboot'

Facter::NeedsReboot.newreason("my_reason") do
true # return a boolean
end
</pre>

This will be pluginsync'd and used to determine the relevant facts automatically.

= Facts =

Each reason has a corresponding <tt>needs_reboot_for_${name}</tt>, which is true if that reason applies.

The <tt>needs_reboot</tt> fact is a human-readable list of all reasons that a reboot is required.

Any of these facts can be used in a dashboard to search for hosts needing a reboot.

= MOTD =

The module also adds a line to the system MOTD when a reboot is required. This will indicate to users accessing the system that a reboot would be handy, helping to take advantage of opportunities.

ReleaseEngineering/PuppetAgain/Modules/needs reboot - Revision history

Djmitche: Created page with "Hosts - even UNIX - often need to be rebooted to get certain updates. For example, to perform a kernel upgrade or boot-time configuration parameter. It would be bad if puppe..."