restart_rabbitmq.sh

#!/bin/bash

PATH=/usr/bin:/bin:/usr/sbin:/sbin
export PATH

function pushover() {
  curl -s -X POST \
    --form-string "token=$PUSHOVER_TOKEN" \
    --form-string "user=$PUSHOVER_USER" \
    --form-string "title=RabbitMQ Restart Attempted" \
    --form-string "message=status: $1" \
    --form-string "priority=1" \
    https://api.pushover.net/1/messages.json
}

lockfile=/tmp/.restart_rabbitmq.lock

mem_stat=$(rabbitmqctl status | egrep 'vm_memory_limit|total,' | cut -d',' -f2,4 | sed 's/}//g')
mem_total=$(echo $mem_stat | awk '{print $1}')
mem_limit=$(echo $mem_stat | awk '{print $2}')

[ $mem_total -lt $mem_limit ] && exit 0

if [ -f $lockfile ] ; then
  echo "$(date) : another process is already running"
  exit
fi

touch $lockfile
echo "$(date) : restarting rabbitmq-server"

rabbitmqctl stop_app && sleep 1; rabbitmqctl start_app
retval=$?

echo "status: $retval"
pushover $retval >/dev/null

rm -f $lockfile

exit 0