This container is a simple (1 service/port) ambassador container, using the etcd service watcher.
Example of how you would use this container:
docker run -d -e SYNAPSE_APP=testservice -e SYNAPSE_PORT=8000 --link zookeeper:zk --name testservice-amb bobtfish/synapse-etcd-amb
This makes a container which runs a haproxy on port 8000, and subscribes to the key /nerve/services/testservice in etcd
Use my nerve-etcd-amb container to health check and register your service.
And then run your own app, linking it to the service ambassador for the service it depends on:
docker run -d --link testservice-amb:testservice you/your_app