[Unit]
Description=Couchbase Service Sidekick %i
BindsTo=couchbase@%i.service
After=couchbase@%i.service

[Service]
TimeoutStartSec=0
RestartSec=1
Restart=always
ExecStartPre=-/usr/bin/etcdctl rm /services/couchbase/%i
ExecStart=/usr/bin/bash -c ' \
  while true; do \
    sleep 5; \
    FLANNELIP=`docker inspect couchbase-%i | jq -r .[].NetworkSettings.IPAddress`; \
    etcdctl update --ttl 8 /services/couchbase/%i $FLANNELIP || \
    etcdctl set --ttl 8 /services/couchbase/%i $FLANNELIP; \
  done'
ExecStop=-/usr/bin/etcdctl rm /services/couchbase/%i'

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