Defining a variable with the host name

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1

Hi,

I installed the Cube module for IcingaWeb2 and I’m trying now to create a view displaying all my zones (currently “Master” and “Satellite”) with all hosts in these zones.
No problem displaying the zones, as far as I define a custom variable vars.zone with the name of the zone, but I’d like to display the host names in the view, too…

Unfortunately I can’t access a variable with the host name inside Cube (and I don’t want to patch the code, for now…).
So I’m trying to define a custom variable with what I need.

Obviously I don’t want to define this variable on every host I have, so I tried to define it in a template:

template Host "generic-host" {
  max_check_attempts = 5
  check_interval = 1m
  retry_interval = 1m
  check_command = "hostalive"
  enable_perfdata = true
  vars.downtime = ""
  vars.kind = ""
  vars.name = host.vars.name
}

but it does not work and fails by check config with Tried to access undefined script variable ‘host’

So my question(s):

  1. is it possible to automatically define a variable with the host name? How?
  2. is it possible to define a variable with the zone name? How?

Thanks a lot
Luca

2

Hi There,

how about:
vars.agent_endpoint = name
You possibly have this already in your host configs. So perhaps you can use this in cube?

3

Hi William,

thanks a lot! I wrote:
vars.name = display_name
and it works.
The variable name is not in Cube, so I must add it in a way…

Any suggestion for automagically set a variable with the zone (defined as a directory into zones.d)?

Thanks
Luca

4

For that we use:

vars.zone = "{{ ic_sat_zone }}"

in ansible :slight_smile:
put the zone in the host / group vars like:

ic_sat_zone: EU-servers

That will put it in our /zones.d/EU-servers/EUhost.conf once it need to place the template EUhost.conf.j2

So for automation, you should look into ansible / puppet / chef /terraform or other flavour that you like.
You could bash script it away, but I would not recommend it.

5

Hi William,

we don’t use ansible.
Do you know if there is a solution using plain Icinga2?

Thanks
Luca

6

Hi,

You could see what
host.zone

holds in terms of information it should be the folder the host is in.

:slight_smile:

7

Thank you very much William!

You saved my day!!!
I wrote in my template:

template Host "generic-host" {
  max_check_attempts = 5
  check_interval = 1m
  retry_interval = 1m
  check_command = "hostalive"
  enable_perfdata = true
  vars.downtime = ""
  vars.kind = ""
  vars.name = display_name
  vars.zone = zone
}

and it works!!

Thank you very very much!
Luca

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