We use progrium/registrator and yaronr/skydns (SkyDNS2) to publish information about Docker containers to DNS via A and SRV records. All nodes runs skydns and registrator, and first three nodes are inserted as NS-s into Route53 DNS for services.cluster-name.domain.io. Note, v4 registrator must be used until registrator/124 is resolved.
$ host -t srv mysql-1.services.deis.r53.acp.io deis-6-1.eu.r53.acp.io
Using domain server:
Name: deis-6-1.eu.r53.acp.io
Address: 54.171.239.227#53
Aliases: