First we create 3 ubuntu 14.04 hosts with docker 1.11.1 on them.
docker run -d -p 8500:8500 -h consul --name consul progrium/consul -server –bootstrap
DOCKER_OPTS="-H tcp://0.0.0.0:2375
-H unix:///var/run/docker.sock
--cluster-store=consul://$MASTER_IP:8500/network \