On 07/28/2015 12:04 PM, Thorsten Garrels wrote:
> ***********************
>
> Hi @ all,
>
> I'm new to Icinga2 (and somewhat to monitoring in general).
> I've already consulted http://docs.icinga.org/icinga2 and while the
> documentation appears to be comprehensive, it is also very dense and
> -- at least to me -- there is some sort of howto-like-glue missing,
> to form the picture of all the bits an pieces :-)
>
>
> What I'm trying to do for starters is to monitor some Cisco switches,
> for instance port status.
>
> I downloaded https://labs.consol.de/nagios/check_nwc_health/ and I'm
using
> this as check_command.
>
> My idea now was to generate templates for the various Cisco Switch
models,
> e.g. the 2940 in my lab:
>
>
No reply because this is incredible simple? ;-)
I pulled my hair because nothing seemed to work. And all over sudden is
does now. Here's an apparently working config (just the changed parts)
- modified my lab switch stanza as follows:
===========================================================================
object Host "lab_switch"{
import "generic-host"
import "cisco-2940"
vars.devicetype = "switch"
vars.devicemanufacturer = "cisco"
vars.deviceproduct = "2940"
address = "172.30.100.36"
vars.monitorInterfaces = [ "FastEthernet0/1",
"FastEthernet0/2",.
"FastEthernet0/3",.
"FastEthernet0/6",.
"FastEthernet0/7",.
"GigabitEthernet0/1" ]
}
===========================================================================
- modified the apply Service file as follows:
===========================================================================
* loop over the host.vars.interfaces dictionary
* for (key => value in dict) means `interface_name` as key
* and `interface_config` as value. Access config attributes
* with the indexer (`.`) character.
*/
apply Service "if-" for (interface_name => interface_config in
host.vars.interfaces) {
import "generic-service"
check_command = "check_nwc_health_2c"
display_name = "IF-" + interface_name
/* use the key as interface argument (no duplication of values in
host.vars.interfaces) */
vars.check_nwc_health_name = interface_name
[...]
check_interval = 10
retry_interval = 10
assign where interface_name in host.vars.monitorInterfaces
}
===========================================================================
Yesterday, checkconfig went fine, as did restart. But it just did not
recognize "interface_name" in the assign statement(i.e. it as assigned
everywhere). If I hardcoded "FastEthernet0/1" instead of
"interface_name" it worked well, for _every_ interface in the loop, if I
hardcoded "FastEthernet0/4" it did not do anything in the loop. So the
statement itself was working.
I tried
assign where vars.check_nwc_health_name in host.vars.monitorInterfaces
but checkconfig complained:
---------------------------------------------------------------------
critical/config: Error: Error while evaluating expression: Tried to
access undefined script variable 'vars'
Location:
/etc/icinga2/conf.d/test/commands/commandConditioner.conf(65): /*
assign where interface_name in host.vars.monitorInterfaces */
---------------------------------------------------------------------
I tried
var ifName = interface_name
assign where ifName in host.vars.monitorInterfaces
in response to this article: https://dev.icinga.org/issues/7610
but checkconfig complained:
---------------------------------------------------------------------
critical/config: Error: Error while evaluating expression: Tried to
access undefined script variable 'ifName'
Location:
/etc/icinga2/conf.d/test/commands/commandConditioner.conf(66):
/etc/icinga2/conf.d/test/commands/commandConditioner.conf(67): var
ifName = interface_name
/etc/icinga2/conf.d/test/commands/commandConditioner.conf(68):
assign where ifName in host.vars.monitorInterfaces
^^^^^^
/etc/icinga2/
---------------------------------------------------------------------
Anyway, I'm happy it works now and hope this will be of help to others!
cheers,
Thorsten
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