retrofit nrpe to CoreOS hosts

nope_retrofit.sh

#!/bin/bash

# pattern match for targeting
MATCH="-kubenode-"
# location of the google cloud sdk
GCLOUD=~/google-cloud-sdk/bin/gcloud

for i in $(${GCLOUD} compute instances list | grep ${MATCH} | cut -d " " -f 1);do
   # gcloud compute instances stop $i
   $GCLOUD compute ssh $i "sudo bash -c 'cat <<EOF > /etc/systemd/system/nrpe.service
[Unit]
Description=Nagios NRPE
After=docker.service

[Service]
Restart=always
ExecStartPre=-/usr/bin/docker stop totem/docker-nrpe
ExecStartPre=-/usr/bin/docker rm totem/docker-nrpe
ExecStartPre=/usr/bin/docker pull totem/docker-nrpe
ExecStart=docker run --privileged -v /:/mnt/ROOT --rm --name nrpe -it -p 5666:5666 totem/docker-nrpe
ExecStop=/usr/bin/docker stop -t 2 totem/docker-nrpe
EOF' "
  $GCLOUD compute ssh $i "sudo systemctl start nrpe"
done