Nagios Support Forum

# Battery Charge level left
define service{
use generic-service
host_name PowerWare 9125
service_description Battery Charge Left
check_command check_ups!public!charge!70!30
normal_check_interval 15
retry_check_interval 3
}

rkennedy wrote:Assuming you already have NRPE commands / scripts defined for the command 'shutdown' setup to trigger, you would go this route.

Create a bash script, that first off detects what state the service is changing in to. Then, just have it execute as NRPE normally would as commands in your bash script. Just because it's on a different service, doesn't mean the Nagios machine can't execute /usr/local/nagios/libexec/check_nrpe -H x.x.x.x -c shutdown from the CLI still.

Once that's created, assign it as an event_handler to the service.

!/bin/sh
#
# Event handler script for restarting the server on the local machine
#
# use variables for arguments
SERVICESTATE=$1
SERVICESTATETYPE=$2
SERVICEATTEMPT=$3

# we don't want to restart if current status is OK
if [ "$SERVICESTATE" != "OK" ] ; then
  # proceed only if we're in soft transition state
  if [ "$SERVICESTATETYPE" == "SOFT" ] ; then
    # proceed only if this is 3rd attempt, restart
    if [ "$SERVICESTATEATTEMPT" == "3" ] ; then
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c shuterdown
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c shuterdown
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c shuterdown
    fi
  fi
fi
exit 0

jriker1 wrote:

rkennedy wrote:Assuming you already have NRPE commands / scripts defined for the command 'shutdown' setup to trigger, you would go this route.

Create a bash script, that first off detects what state the service is changing in to. Then, just have it execute as NRPE normally would as commands in your bash script. Just because it's on a different service, doesn't mean the Nagios machine can't execute /usr/local/nagios/libexec/check_nrpe -H x.x.x.x -c shutdown from the CLI still.

Once that's created, assign it as an event_handler to the service.

Thanks for the reply. I wrote up the shutdown script, modified from another one I had, however partly no to your inquiry. The systems I need to shutdown here are virtual machines. Treating them like any other machine, however they do not have NSCLIENT++ installed so if there is another suggestion open to it. Installing NSCLIENT++ is not even vaguely a big deal but always interested in options.

Thanks.

JR

For reference here is the simple event handler I created:

Code: Select all

!/bin/sh
#
# Event handler script for restarting the server on the local machine
#
# use variables for arguments
SERVICESTATE=$1
SERVICESTATETYPE=$2
SERVICEATTEMPT=$3

# we don't want to restart if current status is OK
if [ "$SERVICESTATE" != "OK" ] ; then
  # proceed only if we're in soft transition state
  if [ "$SERVICESTATETYPE" == "SOFT" ] ; then
    # proceed only if this is 3rd attempt, restart
    if [ "$SERVICESTATEATTEMPT" == "3" ] ; then
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c reboot
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c reboot
      /usr/local/nagios/libexec/check_nrpe -H 192.168.0.x -c reboot
    fi
  fi
fi
exit 0

Assuming this won't go straight to a hard state.