Reason string `json:"reason,omitempty" protobuf:"bytes,7,name=reason"`

	// regarding contains the object this Event is about. In most cases it's an Object reporting controller
	// implements, e.g. ReplicaSetController implements ReplicaSets and this event is emitted because
	// it acts on some changes in a ReplicaSet object.
	// +optional
	Regarding corev1.ObjectReference `json:"regarding,omitempty" protobuf:"bytes,8,opt,name=regarding"`

var map_Deployment = map[string]string{
	"":         "DEPRECATED - This group version of Deployment is deprecated by apps/v1beta2/Deployment. See the release notes for more information. Deployment enables declarative updates for Pods and ReplicaSets.",
	"metadata": "Standard object metadata.",
	"spec":     "Specification of the desired behavior of the Deployment.",
	"status":   "Most recently observed status of the Deployment.",
}

	// Pods that don't define any in `pod.spec.topologySpreadConstraints`.
	// `.defaultConstraints[*].labelSelectors` must be empty, as they are
	// deduced from the Pod's membership to Services, ReplicationControllers,
	// ReplicaSets or StatefulSets.
	// When not empty, .defaultingType must be "List".
	DefaultConstraints []v1.TopologySpreadConstraint

	// DefaultingType determines how .defaultConstraints are deduced. Can be one

  - patch
- apiGroups: [""]
  resources:
  - pods/portforward
  verbs:
  - create
  - post
- apiGroups: ["extensions", "apps"]
  resources:
  - daemonsets
  - deployments
  - replicasets
  - statefulsets
  verbs:
  - get
  - list
  - watch
  - patch
- apiGroups: ["batch"]
  resources:
  - cronjobs
  - jobs
  verbs:
  - get
  - list
  - watch
  - patch

	ok, err := verifyGroupKind(controllerRef, controllerKindRS.Kind, []string{"apps", "extensions"})
	if !ok || err != nil {
		return nil, err
	}
	rs, err := dc.rsLister.ReplicaSets(namespace).Get(controllerRef.Name)
	if err != nil {
		// The only possible error is NotFound, which is ok here.
		return nil, nil
	}
	if rs.UID != controllerRef.UID {
		return nil, nil
	}

	MetadataDiscovery           bool
}

const (
	// DefaultDeploymentUniqueLabelKey is the default key of the selector that is added
	// to existing ReplicaSets (and label key that is added to its pods) to prevent the existing ReplicaSets
	// to select new pods (and old pods being select by new ReplicaSet).
	DefaultDeploymentUniqueLabelKey string = "pod-template-hash"
)

	// The number of old ReplicaSets to retain to allow rollback.
	// This is a pointer to distinguish between explicit zero and not specified.
	// This is set to the max value of int32 (i.e. 2147483647) by default, which
	// means "retaining all old ReplicaSets".
	// +optional

}

func TestActiveReplicaSetsFiltering(t *testing.T) {

	rsUuid := uuid.NewUUID()
	tests := []struct {
		name            string
		replicaSets     []*apps.ReplicaSet
		wantReplicaSets []*apps.ReplicaSet
	}{
		{
			name: "Filters active replica sets",
			replicaSets: []*apps.ReplicaSet{
				newReplicaSet("zero", 0, rsUuid),
				nil,
				newReplicaSet("foo", 1, rsUuid),
				newReplicaSet("bar", 2, rsUuid),

		// impact the existing running pods in the cluster, which includes kube-scheduler, and those well-known
		// built-in workloads such as "deployments", "replicasets" and other low-level custom workload which
		// is important for the cluster.
		SuggestedPriorityLevelConfigurationWorkloadHigh,
		// "workload-low" is used by those workloads with lower priority which availability only has a

}

// FilterActiveReplicaSets returns replica sets that have (or at least ought to have) pods.
func FilterActiveReplicaSets(replicaSets []*apps.ReplicaSet) []*apps.ReplicaSet {
	activeFilter := func(rs *apps.ReplicaSet) bool {
		return rs != nil && *(rs.Spec.Replicas) > 0
	}
	return FilterReplicaSets(replicaSets, activeFilter)
}

type filterRS func(rs *apps.ReplicaSet) bool