chore: remove the remainder of the alpha references

pkg/apis/v1alpha5/labels.go

@@ -14,129 +14,9 @@ limitations under the License.
 
 package v1alpha5
 
-import (
-	"fmt"
-	"strings"
-
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/util/sets"
-)
-
-// Well known labels and resources
-const (
-	ArchitectureAmd64    = "amd64"
-	ArchitectureArm64    = "arm64"
-	CapacityTypeSpot     = "spot"
-	CapacityTypeOnDemand = "on-demand"
-)
-
-// Karpenter specific domains and labels
-const (
-	ProvisionerNameLabelKey = Group + "/provisioner-name"
-	LabelNodeInitialized    = Group + "/initialized"
-	LabelNodeRegistered     = Group + "/registered"
-	LabelCapacityType       = Group + "/capacity-type"
-)
-
 // Karpenter specific annotations
+// These are deprecated. These should be removed as part of the migration to v1.
 const (
 	DoNotEvictPodAnnotationKey        = Group + "/do-not-evict"
 	DoNotConsolidateNodeAnnotationKey = Group + "/do-not-consolidate"
-	EmptinessTimestampAnnotationKey   = Group + "/emptiness-timestamp"
-	MachineLinkedAnnotationKey        = Group + "/linked"
-	MachineManagedByAnnotationKey     = Group + "/managed-by"
-	ProvisionerHashAnnotationKey      = Group + "/provisioner-hash"
-
-	ProviderCompatabilityAnnotationKey = CompatabilityGroup + "/provider"
-)
-
-// Karpenter specific finalizers
-const (
-	TerminationFinalizer = Group + "/termination"
 )
-
-var (
-	// RestrictedLabelDomains are either prohibited by the kubelet or reserved by karpenter
-	RestrictedLabelDomains = sets.NewString(
-		"kubernetes.io",
-		"k8s.io",
-		Group,
-	)
-
-	// LabelDomainExceptions are sub-domains of the RestrictedLabelDomains but allowed because
-	// they are not used in a context where they may be passed as argument to kubelet.
-	LabelDomainExceptions = sets.NewString(
-		"kops.k8s.io",
-		v1.LabelNamespaceSuffixNode,
-		v1.LabelNamespaceNodeRestriction,
-	)
-
-	// WellKnownLabels are labels that belong to the RestrictedLabelDomains but allowed.
-	// Karpenter is aware of these labels, and they can be used to further narrow down
-	// the range of the corresponding values by either provisioner or pods.
-	WellKnownLabels = sets.New(
-		ProvisionerNameLabelKey,
-		v1.LabelTopologyZone,
-		v1.LabelTopologyRegion,
-		v1.LabelInstanceTypeStable,
-		v1.LabelArchStable,
-		v1.LabelOSStable,
-		LabelCapacityType,
-	)
-
-	// RestrictedLabels are labels that should not be used
-	// because they may interfere with the internal provisioning logic.
-	RestrictedLabels = sets.NewString(
-		EmptinessTimestampAnnotationKey,
-		v1.LabelHostname,
-	)
-
-	// NormalizedLabels translate aliased concepts into the controller's
-	// WellKnownLabels. Pod requirements are translated for compatibility.
-	NormalizedLabels = map[string]string{
-		v1.LabelFailureDomainBetaZone:   v1.LabelTopologyZone,
-		"beta.kubernetes.io/arch":       v1.LabelArchStable,
-		"beta.kubernetes.io/os":         v1.LabelOSStable,
-		v1.LabelInstanceType:            v1.LabelInstanceTypeStable,
-		v1.LabelFailureDomainBetaRegion: v1.LabelTopologyRegion,
-	}
-)
-
-// IsRestrictedLabel returns an error if the label is restricted.
-func IsRestrictedLabel(key string) error {
-	if WellKnownLabels.Has(key) {
-		return nil
-	}
-	if IsRestrictedNodeLabel(key) {
-		return fmt.Errorf("label %s is restricted; specify a well known label: %v, or a custom label that does not use a restricted domain: %v", key, sets.List(WellKnownLabels), RestrictedLabelDomains.List())
-	}
-	return nil
-}
-
-// IsRestrictedNodeLabel returns true if a node label should not be injected by Karpenter.
-// They are either known labels that will be injected by cloud providers,
-// or label domain managed by other software (e.g., kops.k8s.io managed by kOps).
-func IsRestrictedNodeLabel(key string) bool {
-	if WellKnownLabels.Has(key) {
-		return true
-	}
-	labelDomain := GetLabelDomain(key)
-	for exceptionLabelDomain := range LabelDomainExceptions {
-		if strings.HasSuffix(labelDomain, exceptionLabelDomain) {
-			return false
-		}
-	}
-	for restrictedLabelDomain := range RestrictedLabelDomains {
-		if strings.HasSuffix(labelDomain, restrictedLabelDomain) {
-			return true
-		}
-	}
-	return RestrictedLabels.Has(key)
-}
-
-func GetLabelDomain(key string) string {
-	if parts := strings.SplitN(key, "/", 2); len(parts) == 2 {
-		return parts[0]
-	}
-	return ""
-}