Playlist: Add mutation and validation (#95708)

apps/playlist/kinds/playlist.cue

@@ -5,6 +5,8 @@ externalName: {
 	group: "playlist"
 	apiResource: {
 		groupOverride: "playlist.grafana.app"
+		mutation: operations:  ["create","update"]
+		validation: operations:  ["create","update"]
 	}
 	codegen: {
 		frontend: false

apps/playlist/pkg/apis/manifest.go

@@ -27,7 +27,21 @@ var appManifestData = app.ManifestData{
 			Conversion: false,
 			Versions: []app.ManifestKindVersion{
 				{
-					Name:   "v0alpha1",
+					Name: "v0alpha1",
+					Admission: &app.AdmissionCapabilities{
+						Validation: &app.ValidationCapability{
+							Operations: []app.AdmissionOperation{
+								app.AdmissionOperationCreate,
+								app.AdmissionOperationUpdate,
+							},
+						},
+						Mutation: &app.MutationCapability{
+							Operations: []app.AdmissionOperation{
+								app.AdmissionOperationCreate,
+								app.AdmissionOperationUpdate,
+							},
+						},
+					},
 					Schema: &versionSchemaPlaylistv0alpha1,
 				},
 			},

apps/playlist/pkg/app/app.go

@@ -5,11 +5,11 @@ import (
 	"fmt"
 
 	"github.com/grafana/grafana-app-sdk/app"
-	"github.com/grafana/grafana-app-sdk/logging"
 	"github.com/grafana/grafana-app-sdk/operator"
 	"github.com/grafana/grafana-app-sdk/resource"
 	"github.com/grafana/grafana-app-sdk/simple"
 	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/klog/v2"
 
 	playlistv0alpha1 "github.com/grafana/grafana/apps/playlist/pkg/apis/playlist/v0alpha1"
 	"github.com/grafana/grafana/apps/playlist/pkg/watchers"
@@ -38,13 +38,27 @@ func New(cfg app.Config) (app.App, error) {
 		KubeConfig: cfg.KubeConfig,
 		InformerConfig: simple.AppInformerConfig{
 			ErrorHandler: func(ctx context.Context, err error) {
-				logging.DefaultLogger.With("error", err).Error("Informer processing error")
+				klog.ErrorS(err, "Informer processing error")
 			},
 		},
 		ManagedKinds: []simple.AppManagedKind{
 			{
 				Kind:    playlistv0alpha1.PlaylistKind(),
 				Watcher: playlistWatcher,
+				Mutator: &simple.Mutator{
+					MutateFunc: func(ctx context.Context, req *app.AdmissionRequest) (*app.MutatingResponse, error) {
+						// modify req.Object if needed
+						return &app.MutatingResponse{
+							UpdatedObject: req.Object,
+						}, nil
+					},
+				},
+				Validator: &simple.Validator{
+					ValidateFunc: func(ctx context.Context, req *app.AdmissionRequest) error {
+						// do something here if needed
+						return nil
+					},
+				},
 			},
 		},
 	}