touch /tmp/powerfail
apcupsd --killpower

• source

https://raw.githubusercontent.com/sixdimensionalarray/esxidown/master/esxidown.sh

#!/bin/sh
# ESXi 5.1 host automated shutdown script

# these are the VM IDs to shutdown in the order specified
# use the SSH shell, run "vim-cmd vmsvc/getallvms" to get ID numbers
# specify IDs separated by a space
SERVERIDS=$(vim-cmd vmsvc/getallvms | sed -e '1d' -e 's/ \[.*$//' | awk '$1 ~ /^[0-9]+$/ {print $1}')

# New variable to allow script testing, assuming the vim commands all work to issue shutdowns
# can be "0" or "1"
TEST=0

# script waits WAIT_TRYS times, WAIT_TIME seconds each time
# number of times to wait for a VM to shutdown cleanly before forcing power off.
WAIT_TRYS=20

# how long to wait in seconds each time for a VM to shutdown.
WAIT_TIME=10

# ------ DON'T CHANGE BELOW THIS LINE ------

validate_shutdown()
{
    vim-cmd vmsvc/power.getstate $SRVID | grep -i "off" > /dev/null 2<&1
    STATUS=$?

    if [ $STATUS -ne 0 ]; then
        if [ $TRY -lt $WAIT_TRYS ]; then
            # if the vm is not off, wait for it to shut down
            TRY=$((TRY + 1))
            echo "Waiting for guest VM ID $SRVID to shutdown (attempt #$TRY)..."
            sleep $WAIT_TIME
            validate_shutdown
        else
            # force power off and wait a little (you could use vmsvc/power.suspend here instead)
            echo "Unable to gracefully shutdown guest VM ID $SRVID... forcing power off."
            if [ $TEST -eq 0 ]; then
                vim-cmd vmsvc/power.off $SRVID
            fi
            sleep $WAIT_TIME
        fi
    fi
}

# enter maintenance mode immediately
echo "Entering maintenance mode..."
if [ $TEST -eq 0 ]; then
    esxcli system maintenanceMode set -e true -t 0 &
fi

# read each line as a server ID and shutdown/poweroff
for SRVID in $SERVERIDS
do
    TRY=0

    vim-cmd vmsvc/power.getstate $SRVID | grep -i "off\|Suspended" > /dev/null 2<&1
    STATUS=$?

    if [ $STATUS -ne 0 ]; then
        echo "Attempting shutdown of guest VM ID $SRVID..."
        if [ $TEST -eq 0 ]; then
            vim-cmd vmsvc/power.shutdown $SRVID
        fi
        validate_shutdown
    else
        echo "Guest VM ID $SRVID already off..."
    fi
done

# guest vm shutdown complete
echo "Guest VM shutdown complete..."

# shutdown the ESXi host
echo "Shutting down ESXi host after 10 seconds..."
if [ $TEST -eq 0 ]; then
    esxcli system shutdown poweroff -d 10 -r "Automated ESXi host shutdown - esxidown.sh"
fi

# exit maintenance mode immediately before server has a chance to shutdown/power off
# NOTE: it is possible for this to fail, leaving the server in maintenance mode on reboot!
echo "Exiting maintenance mode..."
if [ $TEST -eq 0 ]; then
    esxcli system maintenanceMode set -e false -t 0
fi

# exit the session
exit

#!/bin/sh

#variables
esxi1=10.11.12.109
conn_check=0
logfile=/root/apcshutdown-onbattery.log
TIME=`date +%b-%d-%y`
DATE=`date`

#check if the server is up, and pass over the output to the variable
ssh -o ConnectTimeout=5 -i /root/.ssh/id_rsa root@$esxi1 'exit'
conn_check=$(echo $?)

#log the output to the file
echo "Powerout - `date`: Return code for ssh = $conn_check" >> $logfile
logger "Powerout - `date`: Retern code for ssh = $conn_check"

#check if the server is up and try to shutdown
if [ $conn_check = 0 ]
 then
  echo "Powerout - `date`: I can see the ESXI is up and I will poweroff the server" >> $logfile
  logger "Powerout - `date`: I can see the ESXI is up and I will poweroff the server"
  echo "Powerout - `date`: executing the /sbin/poweroff/sbin/shutdown.sh /sbin/poweroff" >> $logfile
  logger "Powerout -`date`: esxishutdown.sh executing the /sbin/poweroff/sbin/shutdown.sh /sbin/poweroff"
  #reset the license
  ssh -i /root/.ssh/id_rsa root@$esxi1 'cp /etc/vmware/.#license.cfg /etc/vmware/license.cfg'
  #shutdown the esxi
  ssh -y -i /root/.ssh/id_rsa root@$esxi1 '/sbin/shutdown.sh && /sbin/poweroff' &
  echo "Powerout - `date`: Sleeping for 6minutes till ESXi powers off" >> $logfile
  logger "Powerout - `date`: Sleeping for 6minutes till ESXi powers off"
  sleep 6m
 else
  echo "Powerout - `date`: I was no table to connect to the server, no need to shutdown" >> $logfile
  logger "Powerout - `date`: I was no table to connect to the server, no need to shutdown"
fi


#shutdown the UPS now and log the actions
echo "Powerout - `date`: shutdown the UPS" >> $logfile
logger "Powerout - `date`: shutdown the UPS"
/etc/apcupsd/apccontrol killpower

#read the status of the battery and send it via email
#/etc/scripts/script-batt-check-down.sh

bcharge=$(apcaccess | grep BCHARGE)
bcharge1=$(apcaccess)
####
rm /tmp/msg-batt-alert-down.txt
echo "To: burimali@yahoo.com" >> /tmp/msg-batt-alert-down.txt
echo "From: bur.nagios.net@gmail.com" >> /tmp/msg-batt-alert-down.txt
echo "Subject: CoreRT2 - alert - down - $bcharge $DATE" >> /tmp/msg-batt-alert-down.txt
echo "" >> /tmp/msg-batt-alert-down.txt
echo "$bcharge1" >> /tmp/msg-batt-alert-down.txt
echo "" >> /tmp/msg-batt-alert-down.txt
echo "EOF" >> /tmp/msg-batt-alert-down.txt
ssmtp burimali@yahoo.com < /tmp/msg-batt-alert-down.txt

#write logs fo the shutdown action
echo "Powerout - `date`: esxishutdown.sh is executing esxishutdown-pi.sh" >> $logfile
logger "Powerout - `date`: esxishutdown.sh is executing esxishutdown-pi.sh"

#shutdown raspberry PI it will have 1 minute to poweroff
/etc/scripts/esxishutdown-pi.sh &