[Unit]
Description=Register Hello World %i
BindsTo=helloworld@%i.service
After=helloworld@%i.service

[Service]
EnvironmentFile=/run/helloworld.env
ExecStartPre=/usr/bin/etcdctl set /services/changed/helloworld 1
ExecStart=/usr/bin/bash -c 'while true; do [ "`etcdctl get /services/helloworld/${FLANNEL_IP}`" != "server ${FLANNEL_IP}:3000;" ] && etcdctl set /services/changed/helloworld 1; etcdctl set /services/helloworld/${FLANNEL_IP} \'server ${FLANNEL_IP}:3000;\' --ttl 60;sleep 45;done'
ExecStop=/usr/bin/etcdctl rm /services/helloworld/helloworld@%i
ExecStopPost=/usr/bin/etcdctl set /services/changed/helloworld 1

[X-Fleet]
MachineOf=helloworld@%i.service