NewControllerManager returns a new ControllerManager comprised of controllerGroups for each namespace included in the 'namespaces' parameter.

ErrReconcileRBAC defines the error string that is displayed when RBAC reconciliation is enabled for the current PostgreSQL Operator installation but the Operator is unable to to properly/fully reconcile its own RBAC in a target namespace.

ControllerManager manages a map of controller groups, each of which is comprised of the various controllers needed to handle events within a specific namespace.