Use other plugin values than default values

Icinga 2
1

Hello,

I want to generate separate procs values instead of default values at the procs service. At the procs service with by_ssh I was successful.
apply Service “procs VM” {
check_command = “by_ssh”

  vars.by_ssh_command = [ "/usr/lib/nagios/plugins/check_procs" ]
  vars.by_ssh_command_endpoint = host.name
  assign where host.vars.os == "LinuxVM" && host.vars.agent_type == "ssh"
  ignore where host.vars.os == "LinuxKVM"

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }
}

with

    object CheckCommand "by_ssh_procs" {
      import "procs"
      vars.by_ssh_arguments = arguments
      arguments = {
           "-w" = "$wload$"
           "-c" = "$cload$"
      }
      vars.by_ssh_command ="/usr/lib/nagios/plugins/check_procs"
      vars.wload = "2048"
      vars.cload = "2560"
      import "by_ssh"
    }

The same I want build in the procs Service for the KVM host where I don’t need a special CheckCommnad with by_ssh.
apply Service “procs root” {
import “generic-service”

  check_command = "procs"
  
  vars.arguments = arguments
  arguments = {
       "-w" = "$wproc$"
       "-c" = "$cproc$"
  } 
  
  vars.wload = "2048"
  vars.cload = "2560"

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }

  ignore where host.vars.os == "LinuxVM"
  assign where (host.address || host.address6) && host.vars.os == "LinuxKVM"
  assign where host.vars.os == "LinuxKVM"
 
}

But this generate a failure:

# icinga2 daemon --validate
[2019-11-04 08:34:05 +0100] information/cli: Icinga application loader (version: r2.11.0-1)
[2019-11-04 08:34:05 +0100] information/cli: Loading configuration file(s).
[2019-11-04 08:34:05 +0100] information/ConfigItem: Committing config item(s).
[2019-11-04 08:34:05 +0100] information/ApiListener: My API identity: neckar.bw.local
[2019-11-04 08:34:06 +0100] critical/config: Error: Error while evaluating expression: Tried to access undefined script variable 'arguments'
Location: in /etc/icinga2/conf.d/services.conf: 138:20-138:28
/etc/icinga2/conf.d/services.conf(136):   check_command = "procs"
/etc/icinga2/conf.d/services.conf(137):   
/etc/icinga2/conf.d/services.conf(138):   vars.arguments = arguments
                                                           ^^^^^^^^^
/etc/icinga2/conf.d/services.conf(139):   arguments = {
/etc/icinga2/conf.d/services.conf(140):        "-w" = "$wproc$"

[2019-11-04 08:34:06 +0100] critical/config: 1 error
[2019-11-04 08:34:06 +0100] critical/cli: Config validation failed. Re-run with 'icinga2 daemon -C' after fixing the config.

How I can change the default values of a plugin like procs here?

Thanks for your answers

BrotherA

2

procs does not support arguments. And you just need procs_warning and procs_critical. The values are of type integer, hence, no double quotes are required. And finally, only one assign statement is allowed. And the end it could look like:

apply Service “procs root” {
  import “generic-service”
  check_command = "procs"
  
  vars.procs_warning = 2048
  vars.procs_critical = 2560

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }

  assign where (host.address || host.address6) && host.vars.os == "LinuxKVM"
  ignore where host.vars.os == "LinuxVM"
}
3

Hi Roland,

thanks for the useful informations.

Greetings

BrotherA