As a prerequisite to configuring cluster autoscaler in OCM (initially interested in autoscaling AWS clusters, but ClusterAutoscaler should be a generic resource), we need the ability to set the configurations in hive.

The currently supported autoscaling behavior is configuring MachineAutoscalers (min+max replicas for a machine group) and creating the ClusterAutoscaler with some default values (if not already set with other values).

We're interested in having a similar way to do this configuration by one of those options:

• Embedding the CA (cluster autoscaler) configurations in the ClusterDeployment CRD.
• Having a new CRD (maybe clusterautoscale.hive.openshift.io?) that has a link to a CD and defines the autoscaling configurations. It has the advantage of cluttering less the already large CD object.