chore: update to Kubernetes 0.36.0 (cloudnative-pg#10593)

Bump k8s.io/* to v0.36.0. That version preserves API compatibility,
which keeps the migration small
(kubernetes/kubernetes#137298).

controller-runtime v0.24.0 deprecated its SchemeBuilder in favor of the
apimachinery one
(kubernetes-sigs/controller-runtime#3461), so
api/v1 is migrated accordingly.

The Go directive moves to 1.26.0 because controller-runtime v0.24.0
requires it. The k8s.io/streaming migration is test-only. The
regenerated Pooler CRD picks up the upstream PodSpec rename workloadRef
-> schedulingGroup; both shapes are alpha and have no user-visible
impact.

Closes cloudnative-pg#10592

Signed-off-by: Jonathan Gonzalez V. <jonathan.gonzalez@enterprisedb.com>
(cherry picked from commit 490938f)

Author: sxd

api/v1/backup_types.go

@@ -356,7 +356,3 @@ type BackupList struct {
 	// List of backups
 	Items []Backup `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&Backup{}, &BackupList{})
-}

api/v1/cluster_types.go

@@ -2671,7 +2671,3 @@ type ConfigMapResourceVersion struct {
 	// +optional
 	Metrics map[string]string `json:"metrics,omitempty"`
 }
-
-func init() {
-	SchemeBuilder.Register(&Cluster{}, &ClusterList{})
-}

api/v1/clusterimagecatalog_types.go

@@ -48,7 +48,3 @@ type ClusterImageCatalogList struct {
 	// List of ClusterImageCatalogs
 	Items []ClusterImageCatalog `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&ClusterImageCatalog{}, &ClusterImageCatalogList{})
-}

api/v1/database_types.go

@@ -402,7 +402,3 @@ type DatabaseList struct {
 	metav1.ListMeta `json:"metadata,omitempty"`
 	Items           []Database `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&Database{}, &DatabaseList{})
-}

api/v1/failoverquorum_types.go

@@ -77,7 +77,3 @@ type FailoverQuorumStatus struct {
 	// +optional
 	Primary string `json:"primary,omitempty"`
 }
-
-func init() {
-	SchemeBuilder.Register(&FailoverQuorum{}, &FailoverQuorumList{})
-}

api/v1/groupversion_info.go

@@ -20,8 +20,9 @@ SPDX-License-Identifier: Apache-2.0
 package v1
 
 import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	"sigs.k8s.io/controller-runtime/pkg/scheme"
 )
 
 const (
@@ -55,8 +56,31 @@ var (
 	SchemeGroupVersion = schema.GroupVersion{Group: "postgresql.cnpg.io", Version: "v1"}
 
 	// SchemeBuilder is used to add go types to the GroupVersionKind scheme
-	SchemeBuilder = &scheme.Builder{GroupVersion: SchemeGroupVersion}
+	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
 
 	// AddToScheme adds the types in this group-version to the given scheme.
 	AddToScheme = SchemeBuilder.AddToScheme
 )
+
+func addKnownTypes(scheme *runtime.Scheme) error {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		// Main types
+		&Backup{}, &BackupList{},
+		&Cluster{}, &ClusterList{},
+
+		// Helper types
+		&ClusterImageCatalog{}, &ClusterImageCatalogList{},
+		&Database{}, &DatabaseList{},
+		&FailoverQuorum{}, &FailoverQuorumList{},
+		&ImageCatalog{}, &ImageCatalogList{},
+
+		// Util types
+		&Pooler{}, &PoolerList{},
+		&Publication{}, &PublicationList{},
+		&ScheduledBackup{}, &ScheduledBackupList{},
+		&Subscription{}, &SubscriptionList{},
+	)
+
+	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
+	return nil
+}

api/v1/imagecatalog_types.go

@@ -71,7 +71,3 @@ type ImageCatalogList struct {
 	// List of ImageCatalogs
 	Items []ImageCatalog `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&ImageCatalog{}, &ImageCatalogList{})
-}

api/v1/pooler_types.go

@@ -304,7 +304,3 @@ type PoolerList struct {
 	metav1.ListMeta `json:"metadata,omitempty"`
 	Items           []Pooler `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&Pooler{}, &PoolerList{})
-}

api/v1/publication_types.go

@@ -159,7 +159,3 @@ type PublicationList struct {
 	metav1.ListMeta `json:"metadata,omitempty"`
 	Items           []Publication `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&Publication{}, &PublicationList{})
-}

api/v1/scheduledbackup_types.go

@@ -133,7 +133,3 @@ type ScheduledBackupList struct {
 	// List of clusters
 	Items []ScheduledBackup `json:"items"`
 }
-
-func init() {
-	SchemeBuilder.Register(&ScheduledBackup{}, &ScheduledBackupList{})
-}