Commit 4b8af773 authored by Dan Thomson's avatar Dan Thomson

[#1] Add more configuration options for nrpe

parent 72c9339f
# General role defaults
packages: []
# npre.cfg values
pid_file: /var/run/nrpe/nrpe.pid
server_port: 5666
nrpe_user: nrpe
nrpe_group: nrpe
debug: 0
command_timeout: 60
connection_timeout: 300
############# NRPE CONFIG FILE OPTIONS
#
# BASH COMMAND SUBSTITUTION
# This option determines whether or not the NRPE daemon will allow clients
# to specify arguments that contain bash command substitutions of the form
# $(...). This option only works if the daemon was configured with both
# the --enable-command-args and --enable-bash-command-substitution configure
# script options.
#
# *** ENABLING THIS OPTION IS A HIGH SECURITY RISK! ***
# Read the SECURITY file for information on some of the security implications
# of enabling this variable.
#
# Values: 0=do not allow bash command substitutions,
# 1=allow bash command substitutions
allow_bash_command_substitution: 0
# WEAK 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: 0
# ALLOWED HOST ADDRESSES
# This is an optional comma-delimited list of IP address or hostnames
# that are allowed to talk to the NRPE daemon. Network addresses with a bit mask
# (i.e. 192.168.1.0/24) are also supported. Hostname wildcards are not currently
# supported.
#
# 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 or systemd
allowed_hosts:
- 127.0.0.1
- ::1
# The following examples use hardcoded command arguments...
# This is by far the most secure method of using NRPE
command:
- name: check_users
command: /usr/lib64/nagios/plugins/check_users -w 5 -c 10
- name: check_load
command: /usr/lib64/nagios/plugins/check_load -r -w .15,.10,.05 -c .30,.25,.20
- name: check_hda1
command: /usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
- name: check_zombie_procs
command: /usr/lib64/nagios/plugins/check_procs -w 5 -c 10 -s Z
- name: check_total_procs
command: /usr/lib64/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.
### MISC SYSTEM METRICS ###
#- name: check_users
# command: /usr/lib64/nagios/plugins/check_users $ARG1$
#- name: check_load
# command: /usr/lib64/nagios/plugins/check_load $ARG1$
#- name: check_disk
# command: /usr/lib64/nagios/plugins/check_disk $ARG1$
#- name: check_swap
# command: /usr/lib64/nagios/plugins/check_swap $ARG1$
#- name: check_cpu_stats
# command: /usr/lib64/nagios/plugins/check_cpu_stats.sh $ARG1$
#- name: check_mem
# command: /usr/lib64/nagios/plugins/custom_check_mem -n $ARG1$
### GENERIC SERVICES ###
# - name: check_init_service
# command: sudo /usr/lib64/nagios/plugins/check_init_service $ARG1$
# - name: check_services
# command: /usr/lib64/nagios/plugins/check_services -p $ARG1$
### SYSTEM UPDATES ###
# - name: check_yum
# command: /usr/lib64/nagios/plugins/check_yum
# - name: check_apt
# command: /usr/lib64/nagios/plugins/check_apt
### PROCESSES ###
# - name: check_all_procs
# command: /usr/lib64/nagios/plugins/custom_check_procs
# - name: check_procs
# command: /usr/lib64/nagios/plugins/check_procs $ARG1$
### OPEN FILES ###
# - name: check_open_files
# command: /usr/lib64/nagios/plugins/check_open_files.pl $ARG1$
### NETWORK CONNECTIONS ###
# - name: check_netstat
# command: /usr/lib64/nagios/plugins/check_netstat.pl -p $ARG1$ $ARG2$
### ASTERISK ###
# - name: check_asterisk
# command: /usr/lib64/nagios/plugins/check_asterisk.pl $ARG1$
# - name: check_sip
# command: /usr/lib64/nagios/plugins/check_sip $ARG1$
# - name: check_asterisk_sip_peers
# command: sudo /usr/lib64/nagios/plugins/check_asterisk_sip_peers.sh $ARG1$
# - name: check_asterisk_version
# command: /usr/lib64/nagios/plugins/nagisk.pl -c version
# - name: check_asterisk_peers
# command: /usr/lib64/nagios/plugins/nagisk.pl -c peers
# - name: check_asterisk_channels
# command: /usr/lib64/nagios/plugins/nagisk.pl -c channels
# - name: check_asterisk_zaptel
# command: /usr/lib64/nagios/plugins/nagisk.pl -c zaptel
# - name: check_asterisk_span
# command: /usr/lib64/nagios/plugins/nagisk.pl -c span -s 1
# 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 allowing
# 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: null
# 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
# 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
# Do not allow command arguments for security reasons
# 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
# Include definitions from config files (with a .cfg extension)
# INCLUDE CONFIG FILE
# This directive allows you to include definitions from an external config file.
include: []
# 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: []
# LISTEN QUEUE SIZE
# Listen queue size (backlog) for serving incoming connections.
# You may want to increase this value under high load.
listen_queue_size: 5
# LOG FACILITY
# The syslog facility that should be used for logging purposes.
log_facility: daemon
# LOG FILE
# If a log file is specified in this option, nrpe will write to
# that file instead of using syslog.
log_file: null
# NASTY METACHARACTERS
# This option allows you to override the list of characters that cannot
# be passed to the NRPE daemon.
nasty_metachars: null
# 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 or via systemd. [In systemd please use
# systemctl edit nrpe.service
# to set up the group.
nrpe_user: nrpe
# 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 or via systemd. [In systemd please use
# systemctl edit nrpe.service
# to set up the user.
nrpe_group: nrpe
# MAX COMMANDS
# This specifies how many children processes may be spawned at any one
# time, essentially limiting the fork()s that occur.
# Default (0) is set to unlimited
max_commands: 0
packages: []
# 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/nrpe/nrpe.pid
# 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
# or with systemd. Please start by hand.
server_address: 127.0.0.1
# PORT NUMBER
# Port number we should wait for connections on.
# NOTE: This must be a non-privileged port (i.e. > 1024).
# NOTE: This option is ignored if NRPE is running under either inetd
# or xinetd or via systemd. [In systemd please use
# systemctl edit nrpe.service
# to set up the port.
server_port: 5666
# SSL Certificate and Private Key Files
ssl_cacert_file: null
ssl_cert_file: null
ssl_privatekey_file: null
# SSL CIPHER LIST
# This lists which ciphers can be used. For backward compatibility, this
# defaults to 'ssl_cipher_list=ALL:!MD5:@STRENGTH' for < OpenSSL 1.1.0,
# and 'ssl_cipher_list=ALL:!MD5:@STRENGTH:@SECLEVEL=0' for OpenSSL 1.1.0 and
# greater.
ssl_cipher_list: null
# SSL USE CLIENT CERTS
# This options determines client certificate usage.
# Values: 0 = Don't ask for or require client certificates (default)
# 1 = Ask for client certificates
# 2 = Require client certificates
ssl_client_certs: 0
# SSL LOGGING
# This option determines which SSL messages are send to syslog. OR values
# together to specify multiple options.
# Values: 0x00 (0) = No additional logging (default)
# 0x01 (1) = Log startup SSL/TLS parameters
# 0x02 (2) = Log remote IP address
# 0x04 (4) = Log SSL/TLS version of connections
# 0x08 (8) = Log which cipher is being used for the connection
# 0x10 (16) = Log if client has a certificate
# 0x20 (32) = Log details of client's certificate if it has one
# -1 or 0xff or 0x2f = All of the above
ssl_logging: 0
# SSL USE ADH
# This is for backward compatibility and is DEPRECATED. Set to 1 to enable
# ADH or 2 to require ADH. 1 is currently the default but will be changed
# in a later version.
ssl_use_adh: 1
# SSL VERSION
# This can be any of: SSLv2 (only use SSLv2), SSLv2+ (use any version),
# SSLv3 (only use SSLv3), SSLv3+ (use SSLv3 or above), TLSv1 (only use
# TLSv1), TLSv1+ (use TLSv1 or above), TLSv1.1 (only use TLSv1.1),
# TLSv1.1+ (use TLSv1.1 or above), TLSv1.2 (only use TLSv1.2),
# TLSv1.2+ (use TLSv1.2 or above)
# If an "or above" version is used, the best will be negotiated. So if both
# ends are able to do TLSv1.2 and use specify SSLv2, you will get TLSv1.2.
# If you are using openssl 1.1.0 or above, the SSLv2 options are not available.
ssl_version: TLSv1+
############# OTHER ROLE-BASED OPTIONS
extra_config_files: []
---
galaxy_info:
author: Dan Thomson
description: Nagios NRPE RPC module installer
company: TRIUMF
min_ansible_version: 2.0
platforms:
- name: CentOS
versions:
- 7
......@@ -7,7 +7,7 @@
loop_var: package
become: yes
- name: Install nrpe (depends on repo that's installed from dependencies)
- name: Install nrpe package
yum:
name: nrpe
state: latest
......
......@@ -21,3 +21,25 @@
skip: true
loop_control:
loop_var: file
- name: Install custom npre.cfg
template:
src: templates/etc/nagios/nrpe/nrpe.cfg
dest: /etc/nagios/nrpe/nrpe.cfg
owner: root
group: root
mode: 0644
become: yes
- name: Install extra config files
copy:
src: "{{ config_file }}"
dest: "/etc/nrpe.d/{{ config_file | basename }}"
owner: root
group: root
mode: 0644
with_items: "{{ extra_configs }}"
loop_control:
loop_var: config_file
become: yes
#############################################################################
#
# NRPE Config File
#
# This file is was installed with Ansible and could be overwritten at any
# time, so please don't make changes to this file if you want them to
# persist!
#
#############################################################################
# LOG FACILITY
log_facility={{ log_facility }}
# LOG FILE
{% if log_file %}
log_file={{ log_file }}
{% endif %}
# DEBUGGING OPTION
debug={{ debug }}
# PID FILE
pid_file={{ pid_file }}
# PORT NUMBER
server_port={{ server_port }}
# SERVER ADDRESS
server_address={{ server_address }}
# LISTEN QUEUE SIZE
listen_queue_size={{ listen_queue_size }}
# NRPE USER
nrpe_user={{ nrpe_user }}
# NRPE GROUP
nrpe_group={{ nrpe_group }}
# ALLOWED HOST ADDRESSES
allowed_hosts={{ allowed_hosts | join "," }}
# COMMAND ARGUMENT PROCESSING
dont_blame_nrpe={{ dont_blame_nrpe }}
# BASH COMMAND SUBSTITUTION
allow_bash_command_substitution={{ allow_bash_command_substitution }}
# COMMAND PREFIX
{% if command_prefix %}
command_prefix={{ command_prefix }}
{% endif %}
# MAX COMMANDS
max_commands={{ max_commands }}
# COMMAND TIMEOUT
command_timeout={{ command_timeout }}
# CONNECTION TIMEOUT
connection_timeout={{ connection_timeout }}
# WEAK RANDOM SEED OPTION
allow_weak_random_seed={{ allow_weak_random_seed }}
# SSL/TLS OPTIONS
# These directives allow you to specify how to use SSL/TLS.
## SSL VERSION
ssl_version={{ ssl_version }}
## SSL USE ADH
ssl_use_adh={{ ssl_use_adh }}
## SSL CIPHER LIST
{% if ssl_cipher_list %}
ssl_cipher_list={{ ssl_cipher_list }}
{% endif %}
## SSL Certificate and Private Key Files
{% if ssl_cert_file %}
ssl_cert_file={{ ssl_cert_file }}
{% endif %}
{% if ssl_cacert_file and ssl_cert_file and ssl_privatekey_file %}
ssl_cacert_file={{ ssl_cacert_file }}
ssl_privatekey_file={{ ssl_privatekey_file }}
{% endif %}
## SSL USE CLIENT CERTS
ssl_client_certs={{ ssl_client_certs }}
## SSL LOGGING
ssl_logging={{ ssl_logging }}
# NASTY METACHARACTERS
{% if nasty_metachars %}
nasty_metachars={{ nasty_metachars | quote }}
{% endif %}
# COMMAND
{% for c in command %}
command[{{ c.name }}]={{ c.command }}
{% endfor %}
# INCLUDE
{% for i in include %}
include={{ i }}
{% endfor %}
# INCLUDE_DIR
{% for i in include_dir %}
include_dir={{ i }}
{% endfor %}
packages:
- sudo
- triumf-release
- epel-release
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