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Icinga2 | add service to a hostgroup

Created: 27 July 2018 | Written by vincent | Print | Email | Hits: 5142

add a service to a hostgroup

i have a couple of Debian 9 "Server/Host/Client" they all should have some Basic Service Check like (apt, disk, mem, swap, procs, users, running_kernel, apt, ssh, iostat, ping4, fping4, tcp, udp, ssl, ntp_time)

because i don't want to add this check to each host i did define a hostgroup and add the hostgroupname to the host (--> "define Hostgroup & add Host to a Hostgroup")

Merci to rsx (Roland)

steps i have done...	icinga2 Master
went to the zone.d	# cd /etc/icinga2/zones.d/
crate a new directory	# mkdir services
went to the new directory	# cd /services or # cd /etc/icinga2/zones.d/services
open a new file	# vi service2debian9.conf
to check apt on all defined Debian 9 "Host/Server/Client"	apply Service "apt" { import "generic-service" check_command = "apt" assign where host.address && host.vars.os == "debian9" command_endpoint = host_name }
to Check swap	apply Service "swap" { import "generic-service" check_command = "swap" assign where host.address && host.vars.os == "debian9" command_endpoint = host_name }
Check it if it for error	# icinga2 daemon -C
if ok	# systemctl restart icinga2

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Sometimes all would be perfect but a Service is on a Host not needed or not available. so you will get a error. to avoid the error - just ignore the host like this	32 apply Service "swap" { 33 import "generic-service" 34 check_command = "swap" 35 36 assign where host.address && host.vars.os == "debian9" 37 ignore where host.name == "memoryalpha.kozo.ch" 38 command_endpoint = host_name 39 }
	# icinga2 daemon -C
	# systemctl restart icinga2

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Quellen/Source:
- 05-service-monitoring/#general-monitoring
- have a look and for my test
-
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- Add a comment

Category: Icinga

Define a Hostgroup Debian for all your Debian 9 client and Server	# vi /etc/icinga2/conf.d/groups.conf		object HostGroup "debian9" { display_name = "Debian 9" assign where host.vars.os == "debian9" }

add definition to a Host	# cd /etc/icinga2/zones.d/master/	open your hostfile endig with *.conf	object Host "client.kozo.ch" { check_command = "hostalive" //check is executed on the master display_name = "client name text" address = "10.147.42.63" vars.os = "debian9" vars.client_endpoint = "name" //follows the convention that host name == endpoint name }

do a check if it is OK	# icinga2 daemon -C
and if OK - restart	# systemctl reload icinga2

	# cd /etc/icinga2/conf.d	conf.d Directory (hosts.conf, services.conf, users.conf, notifications.conf, commands.conf, groups.conf, templates.conf, downtimes.conf, timeperiods.conf, api-users.conf, app.conf )
Service		icinga.com/docs/icinga2/latest/doc/09-object-types/#service


Warning/Critical	how to define +/-	Nagios Guideline (search for " Threshold and Ranges " )

Step	todo	comand	text	-
For a Client	check the Version you have	# icinga2 --version
0
		# wget -O - https://packages.icinga.com/icinga.key \| apt-key add -
		# vi /etc/apt/sources.list	deb http://packages.icinga.com/debian icinga-stretch main deb-src http://packages.icinga.com/debian icinga-stretch main
		# apt update -y



For the Master		# icinga2 --version		(version: r2.6.0-1) i do have
	First update to 2.7	# vi /etc/default/icinga2	ICINGA2_CACHE_DIR=/var/cache/icinga2
		# systemctl restart icinga2
	then to 2.8	# ls /usr/share/icinga2-ido-mysql/schema/upgrade/		ls should Show some *.SQL file
		# mysql -u root -p icinga < /usr/share/icinga2-ido-mysql/schema/upgrade/2.8.0.sql		and also if you have newer files too

0	default Plugins on Debian	# /usr/lib/nagios/plugins	--> source
	define a new path for not default or modified Plugins	# mkdir /usr/lib/nagios/pluginsCustom
	define the new Path to ...	# vi /etc/icinga2/constants.conf	const PluginCustomDir = "/usr/lib/nagios/pluginsCustom"
	restart	# systemctl restart icinga2 # systemctl status icinga2


	the Path i do use for new Plugins is	# cd /usr/lib/nagios/pluginsCustom
	and i do create a Directory for echa plugin too	# mkdir new-plugin

1	on a running Icinga	# icinga2 node wizard	Please specify if this is a satellite setup ('n' installs a master setup) [Y/n] : n


2	Zone.conf definition	# vi /etc/icinga2/zones.conf	object Endpoint "icinga.server.de" { } object Zone "icinga.server.de" { endpoints = ["icinga.server.de" ] }
3		# /etc/init.d/icinga2 restart



		# ps aux \| grep icinga2

1	Proxmox crate a user for monitoring Login to CLI	# pveum useradd icinga2monitoring@pve -comment "Icinga2 Monitoring"
		# pveum passwd icinga2monitoring@pve
		# pveum aclmod / -user icinga2monitoring@pve -role PVEAuditor

	or just a API_User	# pvesh create /access/users -userid icinga2monitoring@pve

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