BaseLabels returns the base labels we apply to all objects created by the operator for a given cluster.

App is the label used to identify the application.

AppM3DB is the value for "App" common to all operator-created clusters.

Cluster is the label identifying what m3db cluster an object is a part of.

Component identifies what component of the M3 stack an object is part of.

ComponentCoordinator indicates a component is a coordinator.

ComponentM3DBNode indicates a component is a dbnode.

EtcdDeletionFinalizer is the finalizer used to delete cluster data stored in etcd.

IsolationGroup identifies what isolation group an object is in.

StatefulSet identifies what StatefulSet an object belongs to.