Docker image not respecting /etc/hosts

Has something changed recently with the docker image? I know that my consul-demo running `progrium/docker` used to work: however the latest tag is no longer finding linked containers

Under the old tag, this compose file https://github.com/micahhausler/consul-demo/blob/master/docker-compose.yml#L11-L33 worked, however the current `latest` tagged image doesn't look up the linked container IP in `/etc/hosts`.