ping openstack vms in specific host

hping.sh

#!/usr/bin/env bash

declare -A vm_ip
declare -A vm_id
declare -A vm_status

while read -r _ id _ name _ ip _ ; do
  ip=$(echo $ip|cut -d'=' -f2)
  vm_ip[$name]=$ip
  vm_id[$name]=$id
  vm_status[$name]="S"
  ping -c1 -i0.1 -t1 -W100 $ip > /dev/null
  if [ "x$?" == "x2" ]; then
    vm_status[$name]="N"
  fi
done< <(nova list --all-tenants --fields name,networks --host $1 | grep "=")

while read -r _ net_id _ id _ _ _ _ ip _ ; do
  ip=$(echo $ip|cut -d'"' -f2)
  net_id_prefix=${net_id:0:11}
  name="_DHCP_"$net_id_prefix
  vm_ip[$name]=$ip
  vm_id[$name]=$id
  vm_status[$name]="S"
  ping -c1 -i0.1 -t1 -W100 $ip > /dev/null
  if [ "x$?" == "x2" ]; then
    vm_status[$name]="N"
  fi
done< <(neutron port-list --device-owner=network:dhcp --binding:host_id $1 -c network_id -c id -c fixed_ips | sed '2d' | grep '|')

c=${#vm_ip[@]}
if [ "x$c" == "x0" ] ; then
  echo "there is no vm or dhcp servers.. exit!!"
  exit
fi

while true; do
  for h in ${!vm_ip[@]}; do
    ping -c1 -i0.1 -t1 -W100 ${vm_ip[$h]} > /dev/null
    if [ "x$?" == "x2" ]; then
      if [ "x${vm_status[$h]}" != "xN" ] ; then
        vm_status[$h]="F"
      fi
    else
      vm_status[$h]="S"
    fi
  done
  for h in ${!vm_ip[@]}; do
    case ${vm_status[$h]} in
      S)
        status="\033[01;32mOK\033[00m" ;;
      F)
        status="\033[01;31mFAIL\033[00m" ;;
      N)
        status="\033[01;33mNOCON\033[00m" ;;
    esac
    pre=$(printf "%-30s  %-15s %-32s %s\n" "${h::30}" "${vm_ip[$h]}" "${vm_id[$h]}" "$status")
    echo -en "\033[K"
    echo -en "$pre\n"
  done
  sleep 1
  echo -en "\033[${c}A"
done