Issues for Nagios - KeegMitch/Operations-Engineering-group-c GitHub Wiki
Attempting different service.pp codes
From what i can tell it might be a problem with the difference between nagios and nagios3 because of this
Latest error.
This is the current service.pp
This is the current config.pp
Code being used is from the Nagios Puppet Module page.
Error when testing the puppet agent:
It does appear to create the file, but it appears to be complaining about the syntax?
Update, I got rid of just the host_alias part of the config.pp code and now it comes up with this error:
Now trying a different approach to the nagios_host resource type by figuring out how to implement nagios_core stuff into Puppet version 6.2, as the resource types moved there , source: https://forge.puppet.com/modules/puppetlabs/nagios_core/reference#nagios_host
This is in regard to the service.pp file:
Looks like the system nagios3 is running? sudo systemctl status nagios3
Fixed the service name in service.pp:
Now we're not getting that error
Testing the config.pp stage
Added this:
Got this error, which relates to the exec code:
Changed it to this code:
Error:
Modified the code to just using the -c flag :
Now I get this when testing it:
I got rid of the files part of the path here:
Now I get no errors:
Setting up nagios host:
I get this error:
Create a template in the templates folder (this di not work):
sudo touch ppt_hosts.cfg.erb
add this code:
define host {
host_name <%= @hostname %>
alias <%= @alias %>
check_period <%= @check_period %>
max_check_attempts <%= @max_check_attempts %>
check_command <%= @check_command %>
notification_interval <%= @notification_interval %>
notification_period <%= @notification_period %>
notification_options <%= @notification_options %>
mode <%= @mode %>
}
template { "/etc/nagios3/conf.d/ppt_hosts.cfg":
source => "templates/ppt_hosts.cfg.erb",
owner => "nagios",
group => "nagios",
mode => "0444",
variables => {
hostname => "db-c.foo.org.nz",
alias => "db",
check_period => "24x7",
max_check_attempts => 3,
check_command => "check-host-alive",
notification_interval => 30,
notification_period => "24x7",
notification_options => "d,u,r",
}
}
This solution below worked:
including this code in the config.pp for nagios host:
# Define the nagios_host resource to monitor the status of the database server
define nagios_host (
$target,
$host_alias,
$check_period,
$max_check_attempts,
$check_command,
$notification_interval,
$notification_period,
$notification_options,
$mode,
) {
file { "/etc/nagios3/conf.d/ppt_hosts.cfg":
ensure => present,
content => "
define host {
use linux-server
host_name ${title}
alias ${host_alias}
address ${target}
check_period ${check_period}
max_check_attempts ${max_check_attempts}
check_command ${check_command}
notification_interval ${notification_interval}
notification_period ${notification_period}
notification_options ${notification_options}
}
",
mode => $mode,
require => File['/etc/nagios3/conf.d'],
}
}
# Use the custom nagios_host resource type to define the Nagios host
nagios::config::nagios_host { "db-c.foo.org.nz":
target => "db-c.foo.org.nz",
host_alias => "db",
check_period => "24x7",
max_check_attempts => 3,
check_command => "check-host-alive",
notification_interval => 30,
notification_period => "24x7",
notification_options => "d,u,r",
mode => "0444",
}
Testing:
With the current confg.pp file, There is most likely an issue with how the htpasswd is configured.
At this stage we can connect to the nagios web server, but it prompts a login, however the login for nagiosadmin doesnt work even when trying to change the password:
The issue looks like it's to do with when testing the puppet agent, it doesn't prompt for a password when i use the specific command from the lab, so it's to do with the htpasswd file
adding this to config.pp
# Ensure the resource.cfg file exists
file { '/etc/nagios3/resource.cfg':
ensure => present,
content => '', # You can leave it empty or add specific configurations if needed
mode => '0644',
require => Class['nagios::install'],
notify => Class['nagios::service'],
}
# Ensure the commands.cfg file exists
file { '/etc/nagios3/commands.cfg':
ensure => present,
content => '', # You can leave it empty or add specific configurations if needed
mode => '0644',
require => Class['nagios::install'],
notify => Class['nagios::service'],
}
changed the target path at the end to this:
nagios::config::nagios_host { "db-c.foo.org.nz":
target => "/etc/nagios3/conf.d/ppt_hosts.cfg",
alias => "db",
check_period => "24x7",
max_check_attempts => 3,
check_command => "check-host-alive",
notification_interval => 30,
notification_period => "24x7",
notification_options => "d,u,r",
mode => "0444",
}
Now getting this error:
Removing some problematic files that were created with the config.pp file:
Current error:
At this point I know it's the config.pp code, but I cannot pinpoint without making more errors
Attempt to add define service to config.pp
class nagios::config {
# File resource that manages the nagios config file
file { "/etc/nagios3/nagios.cfg":
ensure => present,
source => "puppet:///modules/nagios/nagios.cfg",
mode => "0644",
require => Class["nagios::install"],
notify => Class["nagios::service"],
}
# File resource to manage usernames and passwords (causing problems)
exec { "create-htpasswd":
command => "/usr/bin/htpasswd -c /etc/puppetlabs/code/modules/nagios/files/htpasswd.users nagiosadmin",
creates => "/etc/puppetlabs/code/modules/nagios/files/htpasswd.users",
require => Class["nagios::install"],
notify => Class["nagios::service"],
path => '/bin:/sbin:/usr/bin:/usr/sbin',
}
file { "/etc/nagios3/htpasswd.users":
ensure => present,
source => "puppet:///modules/nagios/htpasswd.users",
mode => "0600",
owner => "nagios",
group => "nagios",
require => Exec["create-htpasswd"],
notify => Class["nagios::service"],
}
# File resource that ensures the /etc/nagios3/conf.d directory is present, sets its group ownership to puppet, and its mode to 0775
file { "/etc/nagios3/conf.d":
ensure => directory,
mode => "0775",
owner => "root",
group => "puppet",
require => Class["nagios::install"],
}
# Define the nagios_host resource to monitor the status of the database server
define nagios_host (
$target,
$host_alias,
$check_period,
$max_check_attempts,
$check_command,
$notification_interval,
$notification_period,
$notification_options,
$mode,
$prefix = "ppt_"
) {
file { "/etc/nagios3/conf.d/${prefix}hosts.cfg":
ensure => present,
content => "
define host {
host_name ${title}
host_alias ${host_alias}
address ${target}
check_period ${check_period}
max_check_attempts ${max_check_attempts}
check_command ${check_command}
notification_interval ${notification_interval}
notification_period ${notification_period}
notification_options ${notification_options}
}
",
mode => $mode,
require => File['/etc/nagios3/conf.d'],
}
}
# Use the custom nagios_host resource type to define the Nagios host
nagios::config::nagios_host { "db-c.foo.org.nz":
target => "db-c.foo.org.nz",
host_alias => "db",
check_period => "24x7",
max_check_attempts => 3,
check_command => "check-host-alive",
notification_interval => 30,
notification_period => "24x7",
notification_options => "d,u,r",
mode => "0444",
}
}
class nagios::services {
# Define the service for NTP outside the class
define service {
use generic-service
host_name db-c.foo.org.nz
service_description NTP
check_command check_ntp_time!-H
max_check_attempts 3
check_interval 5
retry_interval 1
check_period "24x7"
notification_interval 30
notification_period "24x7"
notification_options "w,u,c,r"
}
}
Have been getting theses errors from it.
Updated service
# Define the nagios_service resource to monitor services
define nagios_service (
$host_name,
$service_description,
$check_command,
$max_check_attempts,
$check_interval,
$retry_interval,
$check_period,
$notification_interval,
$notification_period,
$notification_options,
$mode,
$prefix = "ppt_"
) {
file { "/etc/nagios3/conf.d/${prefix}services.cfg":
ensure => present,
content => "
define service {
use generic-service
host_name ${host_name}
service_description ${service_description}
check_command ${check_command}
max_check_attempts ${max_check_attempts}
check_interval ${check_interval}
retry_interval ${retry_interval}
check_period ${check_period}
notification_interval ${notification_interval}
notification_period ${notification_period}
notification_options ${notification_options}
}
",
mode => $mode,
require => File['/etc/nagios3/conf.d'],
}
}
# Use the custom nagios_host resource type to define the Nagios host
nagios::config::nagios_host { "db-c.foo.org.nz":
target => "db-c.foo.org.nz",
host_alias => "db",
check_period => "24x7",
max_check_attempts => 3,
check_command => "check-host-alive",
notification_interval => 30,
notification_period => "24x7",
notification_options => "d,u,r",
mode => "0444",
}
}
# Use the custom nagios_service resource type to define Nagios services
nagios_service { "ntp-check":
host_name => "db-c.foo.org.nz",
service_description => "NTP",
check_command => "check_ntp_time!-H",
max_check_attempts => 3,
check_interval => 5,
retry_interval => 1,
check_period => "24x7",
notification_interval => 30,
notification_period => "24x7",
notification_options => "w,u,c,r",
mode => "0444",
}
class nagios::services {
}
