Linking your micro-service applications together within containership.io is incredibly simple.
# Linking Applications Within Clusters On application creation, we automatically create two environment variables:
$CS_ADDRESS_APPNAME $CS_DISCOVERY_PORT_APPNAME
# Linking Applications Across Clusters In some circumstances you may need to link an application in one cluster to an application in another. In the case you will need to set your env variables to the external DNS Entry and Discovery Port listed on the other application's overview page. Make sure to add a firewall rule to the cluster of the receiving application on the application (or its loadbalancer if it has one and you would prefer to use that address) that allows access from the other cluster's follower hosts. See the firewall docs here for more information.
# See also - containership.io