$TTL    86400
@   IN  SOA  etcdns.local. root.etcdns.local. (
             100500     ; Serial
             604800     ; Refresh
              86400     ; Retry
            2419200     ; Expire
              86400 )   ; Negative Cache TTL
    IN  NS  ns.etcdns.local.
    IN  A   127.0.0.1

ns IN A 127.0.0.1
m1 IN A 127.0.0.1
m2 IN A 127.0.0.1
m3 IN A 127.0.0.1

_etcd-client-ssl._tcp IN SRV 0 0 2379 m1.etcd.local.
_etcd-server-ssl._tcp IN SRV 0 0 2380 m1.etcd.local.
_etcd-client-ssl._tcp IN SRV 0 0 22379 m2.etcd.local.
_etcd-server-ssl._tcp IN SRV 0 0 22380 m2.etcd.local.
_etcd-client-ssl._tcp IN SRV 0 0 32379 m3.etcd.local.
_etcd-server-ssl._tcp IN SRV 0 0 32380 m3.etcd.local.