VCenter Alarm Action Script that creates downtimes in CheckMK

action-downtime.sh

#!/bin/bash
# this script creates downtimes in checkmk based on vmware vcenter alarm actions
# put this script in /var/local/ on your vcenter appliance
#
# requires the python3 compatible downtime handler from 
# https://raw.githubusercontent.com/tribe29/checkmk/master/doc/treasures/downtime.python3.py
# in /var/local/

USER="automation"
PASS="secret"
URL="https://host/site/check_mk/"
COMMENT="automatic VCSA Downtime"
DURATION="43200"

# logs to /storage/log/vmware/messages
logger "CheckMK-Downtime VMWARE_ALARM_EVENT_HOST: $VMWARE_ALARM_EVENT_HOST"
logger "CheckMK-Downtime VMWARE_ALARM_TRIGGERINGSUMMARY: $VMWARE_ALARM_TRIGGERINGSUMMARY"

echo "$VMWARE_ALARM_TRIGGERINGSUMMARY" | head -n 1 | grep -iE 'enter|shut down' -q
if [ $? -eq 0 ]
then
 # set downtime
 logger "CheckMK-Downtime set: $VMWARE_ALARM_EVENT_HOST"
 /var/local/downtime -u "$USER" -S "$PASS" -U "$URL" -c "$COMMENT" -d "$DURATION" -s "$VMWARE_ALARM_EVENT_HOST"
fi

echo "$VMWARE_ALARM_TRIGGERINGSUMMARY" | head -n 1 | grep -i exit -q
if [ $? -eq 0 ]
then
 # remove downtime
 sleep 2m
 logger "CheckMK-Downtime remove: $VMWARE_ALARM_EVENT_HOST"
 /var/local/downtime -u "$USER" -S "$PASS" -U "$URL" -r "$VMWARE_ALARM_EVENT_HOST"
fi