Docker link two containers

http://stackoverflow.com/questions/25324860/how-to-create-a-bidirectional-link-between-containers

docker network create glusternet
docker run -it --rm --net=glusternet --net-alias g1 ubuntu bash
docker run -it --rm --net=glusternet --net-alias g2 ubuntu bash

apt-get install iputils-ping
ping g1 # or g2 - works