[DISCOVERY] add service discovery

[silenteh]

allow each container to be discovered via etcd and consul

• [ ] Add Consul
  • [ ] Add service
  • [ ] Add Health check
• [ ] Add Etcd

[silenteh]

Consul is pretty good for service discovery: http://godoc.org/github.com/hashicorp/consul/api It also supports health checks for the services so we should add the healthcheck as well

Etcd is another one: https://github.com/coreos/go-etcd