Nagios Support Forum

Posted: **Thu Jan 12, 2012 9:25 am**

Hello Nagios Support team,

We have got a bunch of hosts, let's say host-01 to host-10. They belong to a particular team team-x.

Now I want create a config so that when team-x logs with their account "user-x" they can see all these hosts only. I also want to create a hostgroup, hostgroup-x, for the reference of Nagios admins.

What would be the best way to achieve this without creating many templates and touching each host file?

Thanks

Posted: **Thu Jan 12, 2012 1:11 pm**

TSCAdmin,

For the multitenancy its unfortunate but you will have to edit each host individually to add the proper contacts or templates (I would suggest the template route.)

As far as creating hostgroups thats a different story. I would certainly test this out in a non-production environment first, but this would be a quick way to do it:

Open up your /usr/local/nagios/etc/nagios.cfg (either in a terminal or using the Core Config Manager > Advanced > Nagios Core Main Config) and find the variable:

use_regexp_matching

And set it equal to zero. Now you'll have to add a manually configured hostgroup definition (as the Core Config Manager won't let you add hosts manually) so you'll need to add a config file to your /usr/local/nagios/etc/static folder as this folder does not get overwritten by the Core Config Manager. So make a new file in this folder and name it something like global_hostgroups.cfg and define the following:

Code: Select all

define hostgroup {
    hostgroup_name group-2
    members ^hostx-*
}

What this will do is put all hosts with the name that starts with hostx- and then ANYTHING else after that, and will put anything that matches that description into the hostgroup named group-2. I hope this makes sense.

Posted: **Fri Jan 13, 2012 9:55 am**

Thanks for your response nscott.

I have created a couple of host templates:

Code: Select all

define host {
       name                                     data-hosts
       contacts                                 data_team,nagiosadmin,servicedesk
       ..........
       register                                 0
}

define host {
       name                                     xiwizard_windowsserver_host
       check_command                            check_xi_host_ping!3000.0!80%!5000.0!100%
       contacts                                 nagiosadmin,servicedesk,windows_team
       .........
       register                                 0

}

and the host definition is

Code: Select all

define host {
        host_name                       server-x
        use                             data-hosts,xiwizard_windowsserver_host
        ........
}

Now when I login as data team I could see the server "server-x" in Nagios XI but not when I login as windows_team

But when I change the use directive's order like

Code: Select all

define host {
        host_name                       server-x
        use                             xiwizard_windowsserver_host,data-hosts
        ........
}

i could see the server "server-x" in Nagios XI when I login as user "windows_team" but not when I login as "data_team".

Is there a way to fix this? I would appreciate if you could please take this request as urgent.

Thanks

Posted: **Fri Jan 13, 2012 10:29 am**

You need to click the + under the contact box (through the XI interface) which is for additive inheritance.

This should make them look like

Code: Select all

define host {
       name                                     data-hosts
       contacts                                 +data_team,nagiosadmin,servicedesk
       ..........
       register                                 0
}

define host {
       name                                     xiwizard_windowsserver_host
       check_command                            check_xi_host_ping!3000.0!80%!5000.0!100%
       contacts                                +nagiosadmin,servicedesk,windows_team
       .........
       register                                 0

}

Posted: **Fri Jan 13, 2012 2:44 pm**

Thanks for the swift response scottwilkerson.

This is exactly how my hosttemplates.cfg file looks like (just like you suggested)

Code: Select all

define host {
       name                                     data-hosts
       use                                      xiwizard_generic_host
       contacts                                 +data_team,nagiosadmin,servicedesk
       register                                 0
}

define host {
       name                                     xiwizard_windowsserver_host
       check_command                            check_xi_host_ping!3000.0!80%!5000.0!100%
       use                                      xiwizard_generic_host
       contacts                                 +nagiosadmin,servicedesk,windows_team
       register                                 0

}

But the same problem persists. server-x has

Code: Select all

use          	data-hosts,xiwizard_windowsserver_host

and server-y has

Code: Select all

use          	xiwizard_windowsserver_host,data-hosts

When I login as data_team, I could see server-x but not server-y. But when I login as windows_team I could see server-y but not server-x.

Is there something I am missing? Please take this as an urgent request.

Thanks

Posted: **Fri Jan 13, 2012 4:08 pm**

Lets check to see that the + is selected on server-x & server-y hosts as well

Posted: **Mon Jan 16, 2012 9:05 am**

Did you mean:

Code: Select all

use             +xiwizard_windowsserver_host,+data-hosts

if yes then it would give an error.

Any other suggestions, please?

Posted: **Mon Jan 16, 2012 9:46 am**

TSCAdmin wrote:Did you mean:
Code: Select all
use             +xiwizard_windowsserver_host,+data-hosts
if yes then it would give an error.

Any other suggestions, please?

No, I meant server-x and server-y should have

Code: Select all

use             +xiwizard_windowsserver_host,data-hosts

We made the contacts for the templates additive, but we need to make the contacts for the host additive.

Posted: **Mon Jan 16, 2012 3:07 pm**

Could you please also explain how this can be achieved? There is no "+" option while inserting the templates in a host configuration in CCM. When I do this from command line and import the configuration file I get the following error:

Code: Select all

Error: Template '+xiwizard_windowsserver_host' specified in host definition could not be not found (config file '/usr/local/nagios/etc/hosts/us-ham-svv-0245.cfg', starting on line 14)
Error processing object config files!

Another question, is there a plugin/add-on for Nagios XI to expand and view the full configuration for a host in the GUI mode like we see in

Nagios Core UI -> left menu -> Configuration -> Hosts -> Update

Thanks

Posted: **Mon Jan 16, 2012 3:39 pm**

TSCAdmin wrote:Could you please also explain how this can be achieved? There is no "+" option while inserting the templates in a host configuration in CCM.

I'm sorry, I said that wrong, what I meant was the + on the contacts. And you should do this for the templates and the hosts

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