Weave (<a href="https:&#x2F;&#x2F;github.com&#x2F;weaveworks&#x2F;weave" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;weaveworks&#x2F;weave</a>) is actually a nice DNS&#x2F;SDN solution for Docker.  Quick and easy to set up.