docker containers on multiple servers

[milesrichardson]

If haproxy is on one server, and I want to load balance containers on multiple servers, is this possible?

[aschmidt75]

afaik of now, the docker network is local to the server it is running on. So you cannot communicate across servers, unless you do things like iptables forward/nat, but that introduces more problems than it solves :-)
Maybe you want to take a look at etcd, i.e. http://coreos.com/docs/ section cluster management.