reboot-node

#!/bin/sh
#
NODE=""
function print_usage () {
   echo "$0 -n node"
   exit 1
}

while getopts n: optargs
do
    case "${optargs}" in
        n) NODE=$OPTARG
           ;;
       \?) print_usage
           ;;
    esac
done

if [ -z "$NODE" ]
then
   print_usage
   exit 1
fi

NODEIP=$(oc get nodes -o wide | grep "^${NODE}" | tr -s ' ' | cut -d ' ' -f 6)
CHECK=$(echo $NODEIP | sed -e 's/^[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*$/X/')

if [ "$CHECK" != "X" ]
then
   echo "Error: Can not find node $NODE"
   exit 1
fi

oc adm cordon $NODE
oc adm drain $NODE --delete-local-data --ignore-daemonsets --force

echo "Rebooting node $NODE ..."
ssh -o "UserKnownHostsFile=/dev/null" -o "StrictHostKeyChecking=no" -l core $NODEIP 'sudo systemctl reboot'

echo "Waiting for $NODE to become ready ..."
sleep 30
while true
do
  NODESTATUS=$(oc get nodes | grep "^${NODE}" | tr -s ' ' | cut -d ' ' -f 2)
  NODESTATUS=$(echo $NODESTATUS | cut -d ',' -f 1)
  if [ "$NODESTATUS" = "Ready" ]
  then
      oc adm uncordon $NODE
      break
  fi
done