This is a derivative of the citus docker build modified to work with Marathon and mesos-dns.
It is designed to work with two seperate container types, "master" and "workers". You should create a minimum of 1 each. You then specify their marathon container names.
There are two variables that must be set:
CLUSTER_NAME: - This is the name of the containers that are the workers.
CLUSTER_MASTER: This is the name of the containers there are the masters or gateway nodes.
These variables will be used to resolves all the instances of the configured container and add them to the Citus worker list and the pghost file.