Puppet configuration

На стороне сервера puppet:

$sudo touch /etc/puppet/manifests/site.pp

# site.pp
import "modules"
import "nodes"
filebucket { main: server => puppet }
# global defaults

File { backup => main }
Exec { path => "/usr/bin:/usr/sbin/:/bin:/sbin" }


$sudo touch /etc/puppet/manifests/modules.pp

import "nrpe"

$sudo touch /etc/puppet/manifests/nodes.pp

node 'testpuppet-1.company.local'

{

   include nrpe

}

$ sudo mkdir /etc/puppet/modules/nrpe

$ sudo mkdir /etc/puppet/modules/nrpe/files

$ sudo mkdir /etc/puppet/modules/nrpe/manifests
$ sudo touch /etc/puppet/modules/nrpe/manifests/init.pp
$ sudo touch /etc/puppet/modules/nrpe/files/nrpe.cfg
$ sudo touch /etc/puppet/modules/nrpe/files/nrpe_local.cfg 




/etc/puppet/modules/nrpe/manifests/init.pp:
class nrpe
{
    package { "nagios-nrpe-server": ensure => installed }
    package { "nagios-plugins": ensure => installed }
   
    exec { "nagios-nrpe-server-restart":
        command     =>      "/etc/init.d/nagios-nrpe-server restart",
        subscribe   =>      [ File["/etc/nagios/nrpe.cfg"], File["/etc/nagios/nrpe_local.cfg"]],
        refreshonly =>      true;
    }

    file { "/etc/nagios/nrpe.cfg":
            owner   =>  root,
            group   =>  root,
            mode    =>  0644,
            source  =>  "puppet:///nrpe/nrpe.cfg";
    }
   
    file { "/etc/nagios/nrpe_local.cfg":
            owner   =>  root,
            group   =>  root,
            mode    =>  0644,
            source  =>  "puppet:///nrpe/nrpe_local.cfg";
    }
}


/etc/puppet/modules/nrpe/files/nrpe.cfg
#############################################################################
# Sample NRPE Config File
# Written by: Ethan Galstad (nagios@nagios.org)
#
#
# NOTES:
# This is a sample configuration file for the NRPE daemon.  It needs to be
# located on the remote host that is running the NRPE daemon, not the host
# from which the check_nrpe client is being executed.
#############################################################################


# LOG FACILITY
# The syslog facility that should be used for logging purposes.

log_facility=daemon



# PID FILE
# The name of the file in which the NRPE daemon should write it's process ID
# number.  The file is only written if the NRPE daemon is started by the root
# user and is running in standalone mode.

pid_file=/var/run/nagios/nrpe.pid



# PORT NUMBER
# Port number we should wait for connections on.
# NOTE: This must be a non-priviledged port (i.e. > 1024).
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

server_port=5666



# SERVER ADDRESS
# Address that nrpe should bind to in case there are more than one interface
# and you do not want nrpe to bind on all interfaces.
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

#server_address=127.0.0.1



# NRPE USER
# This determines the effective user that the NRPE daemon should run as. 
# You can either supply a username or a UID.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

nrpe_user=nagios



# NRPE GROUP
# This determines the effective group that the NRPE daemon should run as. 
# You can either supply a group name or a GID.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

nrpe_group=nagios



# ALLOWED HOST ADDRESSES
# This is an optional comma-delimited list of IP address or hostnames
# that are allowed to talk to the NRPE daemon.
#
# Note: The daemon only does rudimentary checking of the client's IP
# address.  I would highly recommend adding entries in your /etc/hosts.allow
# file to allow only the specified host to connect to the port
# you are running this daemon on.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

#allowed_hosts=127.0.0.1
allowed_hosts=172.16.0.129


# COMMAND ARGUMENT PROCESSING
# This option determines whether or not the NRPE daemon will allow clients
# to specify arguments to commands that are executed.  This option only works
# if the daemon was configured with the --enable-command-args configure script
# option. 
#
# *** ENABLING THIS OPTION IS A SECURITY RISK! ***
# Read the SECURITY file for information on some of the security implications
# of enabling this variable.
#
# Values: 0=do not allow arguments, 1=allow command arguments

dont_blame_nrpe=0



# COMMAND PREFIX
# This option allows you to prefix all commands with a user-defined string.
# A space is automatically added between the specified prefix string and the
# command line from the command definition.
#
# *** THIS EXAMPLE MAY POSE A POTENTIAL SECURITY RISK, SO USE WITH CAUTION! ***
# Usage scenario:
# Execute restricted commmands using sudo.  For this to work, you need to add
# the nagios user to your /etc/sudoers.  An example entry for alllowing
# execution of the plugins from might be:
#
# nagios          ALL=(ALL) NOPASSWD: /usr/lib/nagios/plugins/
#
# This lets the nagios user run all commands in that directory (and only them)
# without asking for a password.  If you do this, make sure you don't give
# random users write access to that directory or its contents!

# command_prefix=/usr/bin/sudo



# DEBUGGING OPTION
# This option determines whether or not debugging messages are logged to the
# syslog facility.
# Values: 0=debugging off, 1=debugging on

debug=0



# COMMAND TIMEOUT
# This specifies the maximum number of seconds that the NRPE daemon will
# allow plugins to finish executing before killing them off.

command_timeout=60



# CONNECTION TIMEOUT
# This specifies the maximum number of seconds that the NRPE daemon will
# wait for a connection to be established before exiting. This is sometimes
# seen where a network problem stops the SSL being established even though
# all network sessions are connected. This causes the nrpe daemons to
# accumulate, eating system resources. Do not set this too low.

connection_timeout=300



# WEEK RANDOM SEED OPTION
# This directive allows you to use SSL even if your system does not have
# a /dev/random or /dev/urandom (on purpose or because the necessary patches
# were not applied). The random number generator will be seeded from a file
# which is either a file pointed to by the environment valiable $RANDFILE
# or $HOME/.rnd. If neither exists, the pseudo random number generator will
# be initialized and a warning will be issued.
# Values: 0=only seed from /dev/[u]random, 1=also seed from weak randomness

#allow_weak_random_seed=1



# INCLUDE CONFIG FILE
# This directive allows you to include definitions from an external config file.

#include=<somefile.cfg>



# INCLUDE CONFIG DIRECTORY
# This directive allows you to include definitions from config files (with a
# .cfg extension) in one or more directories (with recursion).

#include_dir=<somedirectory>
#include_dir=<someotherdirectory>



# COMMAND DEFINITIONS
# Command definitions that this daemon will run.  Definitions
# are in the following format:
#
# command[<command_name>]=<command_line>
#
# When the daemon receives a request to return the results of <command_name>
# it will execute the command specified by the <command_line> argument.
#
# Unlike Nagios, the command line cannot contain macros - it must be
# typed exactly as it should be executed.
#
# Note: Any plugins that are used in the command lines must reside
# on the machine that this daemon is running on!  The examples below
# assume that you have plugins installed in a /usr/local/nagios/libexec
# directory.  Also note that you will have to modify the definitions below
# to match the argument format the plugins expect.  Remember, these are
# examples only!


# The following examples use hardcoded command arguments...

#command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10
#command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
#command[check_hda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
#command[check_zombie_procs]=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z
#command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200


# The following examples allow user-supplied arguments and can
# only be used if the NRPE daemon was compiled with support for
# command arguments *AND* the dont_blame_nrpe directive in this
# config file is set to '1'.  This poses a potential security risk, so
# make sure you read the SECURITY file before doing this.

#command[check_users]=/usr/lib/nagios/plugins/check_users -w $ARG1$ -c $ARG2$
#command[check_load]=/usr/lib/nagios/plugins/check_load -w $ARG1$ -c $ARG2$
#command[check_disk]=/usr/lib/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
#command[check_procs]=/usr/lib/nagios/plugins/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$

#
# local configuration:
#    if you'd prefer, you can instead place directives here
include=/etc/nagios/nrpe_local.cfg

#
# you can place your config snipplets into nrpe.d/
include_dir=/etc/nagios/nrpe.d/


 
/etc/puppet/modules/nrpe/files/nrpe_local.cfg
command[check_disk]=/usr/lib/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
command[check_all_disks]=/usr/lib/nagios/plugins/check_disk -w 7% -c 5%
command[check_swap]=/usr/lib/nagios/plugins/check_swap -w 20% -c 10%
command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10
command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200






На стороне сервера Nagios:

$ sudo touch /etc/nagios3/conf.d/testpuppet-1.cfg

/etc/nagios3/conf.d/testpuppet-1.cfg

define host {
    use             generic-host
    host_name       testpuppet-1
    alias           testpuppet-1
    address         172.16.0.141
}

define service{
    use                             generic-service         ; Name of service template to use
    host_name                       testpuppet-1
    service_description             Total Processes
    check_command                   check_nrpe_1arg!check_total_procs
    }

define service{
    use                             generic-service         ; Name of service template to use
    host_name                       testpuppet-1
    service_description             Current Load
    check_command                   check_nrpe_1arg!check_load
    }
   
define service{
    use                             generic-service         ; Name of service template to use
    host_name                       testpuppet-1
    service_description             Disk Space
    check_command                   check_nrpe_1arg!check_all_disks
    }

define service{
    use                             generic-service      
    host_name                       testpuppet-1
    service_description             Swap Space
    check_command                   check_nrpe_1arg!check_swap
    }
  
define service{
    use                             generic-service         ; Name of service template to use
    host_name                       testpuppet-1
    service_description             Current Users
    check_command                   check_nrpe_1arg!check_users
    }






$ sudo /etc/init.d/nagios3 restart