Drain a nomad EC2 spot instance node on termination

nomadTerminator.sh

#!/bin/bash
CMD="curl --write-out %{http_code} --silent --output /dev/null http://169.254.169.254/latest/meta-data/spot/termination-time"
while true
do
   if [ "$(${CMD})" != "404" ];    then
      # 2 minute warning received. Do all your cleanup work.
      echo "2 minute termination warning. Draining nomad node..."
      nomad node-drain -yes -self -enable
      echo "Hasta la vista baby, I will be back"
      break
   else
      echo "Not terminating yet..."
      # Still running fine, sleep and then check again
      sleep 10
   fi
done