Enrich configs

[burmanm]

What is missing?

Current cass-config-builder will enrich the following keys of the config that's given from cass-operator:

• cassandra-yaml
• cassandra-env-sh
• dse
• datastax-env-sh
• cassandra-rack-properties

In the cassandra-yaml, we need to take care of several properties that the user should not override and we should always. These include seed_provider, cluster_name as well as:

(def node-private-props #{:listen_address
                          :broadcast_address
                          :native_transport_address
                          :native_transport_broadcast_address
                          :rpc_address
                          :broadcast_rpc_address
                          :seed_provider
                          :initial_token
                          :auto_bootstrap})

And from the definitions, we'll need listen_address and such. Some of these are defined in the mcctl already, some have different settings depending on the version we'll support.

Why is this needed?

Otherwise the configuration that's applied might not work correctly in our environment.