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Alignak checks pack for Linux NRPE monitored hosts

Project description

Alignak checks package for Unix/Linux NRPE checked hosts/services
=================================================================

*Checks pack for monitoring Unix/Linux hosts with NRPE active checks*


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:alt: Most recent PyPi version

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.. image:: https://img.shields.io/badge/License-AGPL%20v3-blue.svg
:target: http://www.gnu.org/licenses/agpl-3.0
:alt: License AGPL v3

Installation
------------

The installation of this checks pack will copy some configuration files in the Alignak default configuration directory (eg. */usr/local/etc/alignak*). The copied files are located in the default sub-directory used for the packs (eg. *arbiter/packs*).

From PyPI
~~~~~~~~~
To install the package from PyPI:
::

sudo pip install alignak-checks-linux-nrpe


From source files
~~~~~~~~~~~~~~~~~
To install the package from the source files:
::

git clone https://github.com/Alignak-monitoring-contrib/alignak-checks-linux-nrpe
cd alignak-checks-nrpe
sudo pip install .

**Note:** *using `sudo python setup.py install` will not correctly manage the package configuration files! The recommended way is really to use `pip`;)*

Documentation
-------------

Configuration
~~~~~~~~~~~~~

This checks pack is using the `check_nrpe` Nagios plugin that must be installed on the Alignak server running your poller daemon.

For Unix (FreeBSD), you can simply install the NRPE plugin:
::

# Simple NRPE
pkg install nrpe

# NRPE with SSL
pkg install nrpe-ssl

For Linux distros, install the Nagios ``check_nrpe`` plugin from your system repository:
::

# Install local NRPE plugin
sudo apt-get install nagios-nrpe-plugin
# Note: This may install all the Nagios stuff on your machine...


After installation, the plugins are commonly installed in the */usr/local/libexec/nagios* directory.

The */usr/local/etc/alignak/arbiter/packs/resource.d/nrpe.cfg* file defines a global macro
that contains the NRPE check plugin installation path. You must edit this file to update the default path that is defined to the alignak ``$NAGIOSPLUGINSDIR$`` (defined in alignak default configuration).
::

#-- NRPE check plugin installation directory
# Default is to use the Alignak plugins directory
$NRPE_PLUGINS_DIR$=$NAGIOSPLUGINSDIR$
#--

**Note:** the default value for ``$NAGIOSPLUGINSDIR$`` is set as */usr/lib/nagios/plugins* which is the common installation directory used by the Nagios plugins.


Prepare monitored hosts
~~~~~~~~~~~~~~~~~~~~~~~

Some operations are necessary on the monitored hosts if NRPE remote access is not yet activated.
::
# Install local NRPE server
su -
apt-get update
apt-get install nagios-nrpe-server
apt-get install nagios-plugins

# Allow Alignak as a remote host
vi /etc/nagios/nrpe.cfg
=>
allowed_hosts = X.X.X.X

# Restart NRPE daemon
/etc/init.d/nagios-nrpe-server start

Test remote access with the plugins files:
::
/usr/local/var/libexec/alignak/check_nrpe -H 127.0.0.1 -t 9 -u -c check_load

**Note**: This configuration is the default Nagios NRPE daemon configuration. As such it does not allow to define arguments in the NRPE commands and, as of it, the warning / critical threshold are defined on the server side.


Alignak configuration
~~~~~~~~~~~~~~~~~~~~~

You simply have to tag the concerned hosts with the template ``linux-nrpe``.
::

define host{
use linux-nrpe
host_name linux_nrpe
address 127.0.0.1
}



The main ``linux-nrpe`` template only declares the default NRPE commands configured on the server.
You can easily adapt the configuration defined in the ``services.cfg`` and ``commands.cfg.parse`` files.


Bugs, issues and contributing
-----------------------------

Contributions to this project are welcome and encouraged ... `issues in the project repository <https://github.com/alignak-monitoring-contrib/alignak-checks-linux-nrpe/issues>`_ are the common way to raise an information.

Project details


Release history Release notifications

This version
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0.4.2

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0.4.1

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0.4.0

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