Domoticz

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return {
	on = {
		devices = {},
		timer = {'every minute'},
	},
    data = {    heartbeatCounter    = { initial = 0 },
                State               = { initial = 0 },
                timeOut             = { initial = 0 },
	        },

	execute = function(dz, triggeredItem)
	    local HeartcheckOut = dz.devices('HeartcheckMirror')
	    if dz.data.State == 0 then
	        dz.log('Increase heartbeat and send to main')
	        dz.data.heartbeatCounter = dz.data.heartbeatCounter + 1
	        local string = 'http://192.168.1.231:8080/json.htm?type=command&param=udevice&idx=5247&nvalue=0&svalue=' .. dz.data.heartbeatCounter
	        dz.log(string)
            dz.openURL({
            url = string,
            method = 'GET',
            callback = 'dataRetrieved'
         })	        
	        dz.data.timeOut = 0
	        dz.data.State = 1
        elseif dz.data.State == 1 then
            dz.log('Wait for heartbeat from main')
            dz.data.timeOut = dz.data.timeOut + 1
            dz.log(HeartcheckOut.counter)
            dz.log(dz.data.heartbeatCounter)
            dz.log('Timeout timer : ' .. dz.data.timeOut)
            if HeartcheckOut.counter == dz.data.heartbeatCounter then
                dz.data.State = 0
            elseif dz.data.timeOut > 10 then
                dz.data.State = 2
            end
        elseif dz.data.State == 2 then
            dz.log('No response from main')
            local text = "No response domoticz main"
            dz.notify('Heartbeat ',text,dz.PRIORITY_HIGH,dz.NSS_TELEGRAM)
            dz.data.timeOut = 0
            dz.data.State = 0
        end

	end
}

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return {
	on = {
		devices = {},
		timer = {'every minute'},

	},

--    logging =   {level                   = domoticz.LOG_DEBUG,
--                 marker                  = "Heart"},	

	execute = function(dz, triggeredItem)
        local HeartbeatIn  = dz.devices('Heart')
        dz.log(HeartbeatIn.counter)
            dz.openURL({
            url = 'http://192.168.1.232:8080/json.htm?type=command&param=udevice&idx=33&nvalue=0&svalue='.. HeartbeatIn.counter,
            method = 'GET',
           callback = 'dataRetrieved'
         })	        
	end
}

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http://127.0.0.1:8080/json.htm?type=command&param=getversion

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#!/bin/bash
#****************************************************************************
# program    : check-domoticz-active.sh
# programmer : RM
# date       : 2020-02-21
#
# install in cron with crontab -e to run every 5 minutes
#
#  m h dom mon dow   command
#  */5 * * * *       /home/pi/domoticz/scripts/check-domoticz-active.sh >/dev/null 2>&1
#
#
# prerequisites
# jq installed (apt-get install jq)
# make sure the cron entry (example above)has the full path to the script!!
#
# revision
# 0.0.1      2020-23-21   initial release
#
#
#****************************************************************************

i=0

while [ $i -lt 3 ]
do
	# check if domoticz responds to a json query
	DOMOTICZ=`curl -s --connect-timeout 2 --max-time 5 "http://127.0.0.1:8080/json.htm?type=devices&rid=1"`
	STATUS=`echo $DOMOTICZ | jq -r '.status'`
	if [ "$STATUS" == "OK" ] ; then
		echo "Domoticz responded"
		break			# all ok
	else
		i=$(( $i + 1 ))
		echo "Domoticz did not respond on try $i "
	fi
	sleep 5
done

# if we do not have an OK, domoticz did not respond, stop and start it
if [ "$STATUS" != "OK" ] ; then
	echo "Stopping domoticz"
	sudo systemctl stop domoticz.service
	sleep 10
	echo "Starting domoticz"
	NOW=$(date +"%Y-%m-%d %H:%M:%S")
	sudo systemctl start domoticz.service
	Exitcode=$? 	# save systemctl exit code
	if [ $Exitcode != 0 ] ; then
		echo "$NOW - sudo systemctl start domoticz.service failed with exit code $Exitcode"
	else
		echo "$NOW - sudo systemctl start domoticz.service completed with exit code $Exitcode"
	fi
fi

# end of source

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#!/bin/bash
# check domoticz
#-m 10 beperkt de duur tot 10 seconden
WHOCOUNT=$( who | wc -l )
if [[ "${WHOCOUNT}" != 0 ]]
then
    echo "Someone is logged on. No further actions" >&2
    exit
fi


status=`curl -m 20 -s -i -H "Accept: application/json" "http://192.168.1.2:8080/json.htm?type=devices&rid=1" | grep "status"| awk -F: '{print $2}'|sed 's/,//'| sed 's/\"//g
'`
if [ $status ]
then
        echo "Domoticz is al gestart"
else
        sudo /etc/init.d/domoticz.sh stop
        sleep 30
        sudo /etc/init.d/domoticz.sh start
        status=`curl -s  --form-string "token=XXXX"  --form-string "user=XXXX"  --form-string "message=Domoticz is opnieuw gestart"  https://api.pushover.net/1/messages.json`
fi

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#!/bin/bash
# Check domoticz (from a crontab) is up a restart whole PI if needed...

domoticzUrl=localhost:8080
BN=`basename $0`

WHOCOUNT=$(who | wc -l)
if [ ${WHOCOUNT} -ne 0 ]
then
  logger $BN: Someone is logged on, no check.
  exit 0
fi

httping -c 5 -i 0 -t 1 --ts -v -Wsqg $domoticzUrl
STATUS=$?
if [ ${STATUS} -ne 0 ]
then
  logger $BN: Domoticz httping-ed KO, retry after 1mn... 
  sleep 1m
  # Retry once
  httping -c 5 -i 0 -t 1 --ts -v -Wsqg $domoticzUrl
  STATUS=$?
  if [ ${STATUS} -ne 0 ]
  then
    logger $BN: Still KO. Get last logs and try service restart then wait...
    tail -n 20 /tmp/domoticz.txt | logger
    service domoticz restart
    sleep 1m
    logger $BN: Check after service restart...
    httping -c 5 -i 0 -t 1 --ts -v -Wsqg $domoticzUrl
    STATUS=$?
    if [ ${STATUS} -ne 0 ]
    then
      logger $BN: Still KO. Get last logs and REBOOT...
      tail -n 20 /tmp/domoticz.txt | logger
      /sbin/shutdown --no-wall -r now
      STATUS=$?
    else
      logger $BN: Service restart OK !
    fi
  else
    logger $BN: Retry OK !
  fi
else
  logger $BN: Domoticz ALIVE !
fi

wait
logger $BN: DONE, status= ${STATUS} !!!
exit ${STATUS}

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0,30  *  *   *   *     /root/checkDomoticz.sh > /dev/null 2>&1