Fix non registring group on maintenance service

internal/instance/manager.go

@@ -14,6 +14,7 @@ import (
 	cnpgv1 "github.com/cloudnative-pg/cloudnative-pg/api/v1"
 	"github.com/spf13/viper"
 	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
@@ -118,5 +119,7 @@ func generateScheme(ctx context.Context) *runtime.Scheme {
 	schemeLog := log.FromContext(ctx)
 	schemeLog.Info("CNPG types registration", "schemeGroupVersion", schemeGroupVersion)
 
+	metav1.AddToGroupVersion(result, schemeGroupVersion)
+
 	return result
 }

internal/instance/manager_test.go

@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: 2026 Dalibo <contact@dalibo.com>
+//
+// SPDX-License-Identifier: Apache-2.0
+package instance
+
+import (
+	"context"
+	"testing"
+
+	"github.com/spf13/viper"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+func TestGenerateScheme_RegistersMetaTypes(t *testing.T) {
+	viper.Reset()
+	group := "postgresql.cnpg.io"
+	version := "v1"
+	viper.Set("custom-cnpg-group", group)
+	viper.Set("custom-cnpg-version", version)
+
+	ctx := context.Background()
+	scheme := generateScheme(ctx)
+
+	if scheme == nil {
+		t.Fatal("expected scheme to not be nil")
+	}
+
+	testsCases := []struct {
+		name string
+		gvk  schema.GroupVersionKind
+	}{
+		{
+			name: "CNPG Cluster Custom Resource Type",
+			gvk:  schema.GroupVersionKind{Group: group, Version: version, Kind: "Cluster"},
+		},
+		{
+			name: "metav1 GetOptions under CNPG GroupVersion",
+			gvk:  schema.GroupVersionKind{Group: group, Version: version, Kind: "GetOptions"},
+		},
+		{
+			name: "metav1 ListOptions under CNPG GroupVersion",
+			gvk:  schema.GroupVersionKind{Group: group, Version: version, Kind: "ListOptions"},
+		},
+	}
+
+	for _, tt := range testsCases {
+		t.Run(tt.name, func(t *testing.T) {
+			if !scheme.Recognizes(tt.gvk) {
+				t.Errorf(
+					"Scheme is missing registration for GVK: %v. Your fix failed to add it.",
+					tt.gvk,
+				)
+			}
+			_, err := scheme.New(tt.gvk)
+			if err != nil {
+				t.Errorf("Failed to instantiate type for GVK %v: %v", tt.gvk, err)
+			}
+		})
+	}
+}

kubernetes/prod/deployment-image-patch.yaml

@@ -9,7 +9,7 @@ spec:
     spec:
       containers:
         - name: pgbackrest-controller
-          image: registry.hub.docker.com/dalibo/cnpg-pgbackrest-controller:0.0.2
+          image: registry.hub.docker.com/dalibo/cnpg-pgbackrest-controller:0.0.3
           env:
             - name: SIDECAR_IMAGE
               valueFrom:

manifest.yaml

@@ -1155,7 +1155,7 @@ spec:
             secretKeyRef:
               key: SIDECAR_EXPORTER_IMAGE
               name: plugin-pgbackrest-df48cbmd95
-        image: registry.hub.docker.com/dalibo/cnpg-pgbackrest-controller:0.0.2
+        image: registry.hub.docker.com/dalibo/cnpg-pgbackrest-controller:0.0.3
         name: pgbackrest-controller
         ports:
         - containerPort: 9090