Serve EditorTemplate via the editor.ui.k8s.appscode.com group

Add a registry storage for the new editor.ui.k8s.appscode.com EditorTemplate
kind. It wraps kubepack.dev/lib-app/pkg/editor (CreateAppReleaseIfMissing +
LoadResourceEditorModel / loadEditorModel2) and returns the loaded editor
manifest, values and resources for an existing installation. Served under a new
editor.ui.k8s.appscode.com aggregated API group. Bumps resource-metadata for the
EditorTemplate type.

Signed-off-by: Tamal Saha <tamal@appscode.com>

Author: tamalsaha

go.mod

@@ -47,7 +47,7 @@ require (
 	kmodules.xyz/go-containerregistry v0.0.15
 	kmodules.xyz/monitoring-agent-api v0.34.3
 	kmodules.xyz/offshoot-api v0.34.0
-	kmodules.xyz/resource-metadata v0.47.1-0.20260626123515-f3c8c1fb4e83
+	kmodules.xyz/resource-metadata v0.47.1-0.20260626193907-8312d452fb24
 	kmodules.xyz/resource-metrics v0.34.4-0.20260626131047-afdc9726717d
 	kmodules.xyz/resource-metrics/utils v0.34.1-0.20260622121456-42ed2b0a80a4
 	kmodules.xyz/sets v0.29.0

go.sum

@@ -1187,8 +1187,8 @@ kmodules.xyz/monitoring-agent-api v0.34.3 h1:8dCTSatkKbi9CTAQ3+u7OmoyUghLvKTqqcl
 kmodules.xyz/monitoring-agent-api v0.34.3/go.mod h1:0WtVdliczkCmjA/QyB2ZriVwABSA8Fhzt01yMEukFLY=
 kmodules.xyz/offshoot-api v0.34.0 h1:HnOOp8FrCjTWjtNApRDo6Ahe79tOlLrJmyye4xxO4Kk=
 kmodules.xyz/offshoot-api v0.34.0/go.mod h1:F+B59yYw4CZJ4uD4xu6C+mMLzIXUtuH7E+SbDICl9jE=
-kmodules.xyz/resource-metadata v0.47.1-0.20260626123515-f3c8c1fb4e83 h1:TDMAyTYHY12VRXwq471jqsUI5VBu/8X9E9ZOMLrlW4g=
-kmodules.xyz/resource-metadata v0.47.1-0.20260626123515-f3c8c1fb4e83/go.mod h1:ejz7IVjhqmj6VH8CVfprocJK/IM++OeunrfUp51ZrIw=
+kmodules.xyz/resource-metadata v0.47.1-0.20260626193907-8312d452fb24 h1:SEcNvePGyg1KOH4TfuESwhIWeDqSUGW8o3ZQl18MsQA=
+kmodules.xyz/resource-metadata v0.47.1-0.20260626193907-8312d452fb24/go.mod h1:ejz7IVjhqmj6VH8CVfprocJK/IM++OeunrfUp51ZrIw=
 kmodules.xyz/resource-metrics v0.34.4-0.20260626131047-afdc9726717d h1:vgDVnRBzVuhbhlHYi8VWL/mJ8LHNk+z5ipVjIpTA2N4=
 kmodules.xyz/resource-metrics v0.34.4-0.20260626131047-afdc9726717d/go.mod h1:R34IKtp5+NqcQz7AQJheBJK6Iem0LqrCbm/55Mn+ECQ=
 kmodules.xyz/resource-metrics/utils v0.34.1-0.20260622121456-42ed2b0a80a4 h1:AhuMryuO4hKbnqH7QyVciCar8mQ2WYPqP0f1WVqzALQ=

pkg/apiserver/apiserver.go

@@ -43,6 +43,7 @@ import (
 	resourcesservicestorage "kubeops.dev/ui-server/pkg/registry/core/resourceservice"
 	resourcesummarystorage "kubeops.dev/ui-server/pkg/registry/core/resourcesummary"
 	coststorage "kubeops.dev/ui-server/pkg/registry/cost/reports"
+	editortemplatestorage "kubeops.dev/ui-server/pkg/registry/editor/editortemplate"
 	audittokenreqstorage "kubeops.dev/ui-server/pkg/registry/identity/audittokenrequest"
 	clusteridstorage "kubeops.dev/ui-server/pkg/registry/identity/clusteridentity"
 	inboxtokenreqstorage "kubeops.dev/ui-server/pkg/registry/identity/inboxtokenrequest"
@@ -101,6 +102,8 @@ import (
 	promclient "kmodules.xyz/monitoring-agent-api/client"
 	rscoreinstall "kmodules.xyz/resource-metadata/apis/core/install"
 	rscoreapi "kmodules.xyz/resource-metadata/apis/core/v1alpha1"
+	editorinstall "kmodules.xyz/resource-metadata/apis/editor/install"
+	editorapi "kmodules.xyz/resource-metadata/apis/editor/v1alpha1"
 	identityinstall "kmodules.xyz/resource-metadata/apis/identity/install"
 	identityapi "kmodules.xyz/resource-metadata/apis/identity/v1alpha1"
 	mgmtinstall "kmodules.xyz/resource-metadata/apis/management/install"
@@ -133,6 +136,7 @@ func init() {
 	costinstall.Install(Scheme)
 	rsinstall.Install(Scheme)
 	uiinstall.Install(Scheme)
+	editorinstall.Install(Scheme)
 	rscoreinstall.Install(Scheme)
 	mgmtinstall.Install(Scheme)
 	crdinstall.Install(Scheme)
@@ -431,6 +435,17 @@ func (c completedConfig) New(ctx context.Context) (*UIServer, error) {
 			return nil, err
 		}
 	}
+	{
+		apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(editorapi.SchemeGroupVersion.Group, Scheme, metav1.ParameterCodec, Codecs)
+
+		v1alpha1storage := map[string]rest.Storage{}
+		v1alpha1storage[editorapi.ResourceEditorTemplates] = editortemplatestorage.NewStorage(ctrlClient, cfg)
+		apiGroupInfo.VersionedResourcesStorageMap["v1alpha1"] = v1alpha1storage
+
+		if err := s.GenericAPIServer.InstallAPIGroup(&apiGroupInfo); err != nil {
+			return nil, err
+		}
+	}
 	{
 		// Create metrics handler and fill the stores with metrics store
 		// containing Help and Type headers of metrics

pkg/registry/editor/editortemplate/storage.go

@@ -0,0 +1,135 @@
+/*
+Copyright AppsCode Inc. and Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package editortemplate
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apiserver/pkg/registry/rest"
+	restclient "k8s.io/client-go/rest"
+	editorapi "kmodules.xyz/resource-metadata/apis/editor/v1alpha1"
+	"kubepack.dev/lib-app/pkg/editor"
+	"kubepack.dev/lib-helm/pkg/repo"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	releasesapi "x-helm.dev/apimachinery/apis/releases/v1alpha1"
+)
+
+type Storage struct {
+	kc  client.Client
+	cfg *restclient.Config
+}
+
+var (
+	_ rest.GroupVersionKindProvider = &Storage{}
+	_ rest.Scoper                   = &Storage{}
+	_ rest.Storage                  = &Storage{}
+	_ rest.Creater                  = &Storage{}
+	_ rest.SingularNameProvider     = &Storage{}
+)
+
+func NewStorage(kc client.Client, cfg *restclient.Config) *Storage {
+	return &Storage{kc: kc, cfg: cfg}
+}
+
+func (r *Storage) GroupVersionKind(_ schema.GroupVersion) schema.GroupVersionKind {
+	return editorapi.SchemeGroupVersion.WithKind(editorapi.ResourceKindEditorTemplate)
+}
+
+func (r *Storage) NamespaceScoped() bool {
+	return false
+}
+
+func (r *Storage) GetSingularName() string {
+	return strings.ToLower(editorapi.ResourceKindEditorTemplate)
+}
+
+func (r *Storage) New() runtime.Object {
+	return &editorapi.EditorTemplate{}
+}
+
+func (r *Storage) Destroy() {}
+
+var DefaultCache = repo.DefaultDiskCache()
+
+func NewRegistry(kc client.Client) repo.IRegistry {
+	return repo.NewRegistry(kc, DefaultCache)
+}
+
+func (r *Storage) Create(ctx context.Context, obj runtime.Object, _ rest.ValidateObjectFunc, _ *metav1.CreateOptions) (runtime.Object, error) {
+	in, ok := obj.(*editorapi.EditorTemplate)
+	if !ok {
+		return nil, fmt.Errorf("invalid object type: %T", obj)
+	}
+	if in.Request == nil {
+		return nil, apierrors.NewBadRequest("missing request")
+	}
+
+	reg := NewRegistry(r.kc)
+	md := in.Request.ModelMetadata
+
+	if _, err := editor.CreateAppReleaseIfMissing(r.cfg, r.kc, reg, md.Metadata); err != nil {
+		return nil, err
+	}
+
+	var (
+		tpl *releasesapi.EditorTemplate
+		err error
+	)
+	if in.Request.ChartRef != nil {
+		tpl, err = editor.LoadEditorModel(r.kc, reg, in.Request.ChartRef.ToAPIObject(), md)
+	} else {
+		tpl, err = editor.LoadResourceEditorModel(r.kc, reg, md)
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	resp := &editorapi.EditorTemplateResponse{
+		Manifest: string(tpl.Manifest),
+	}
+	if tpl.Values != nil {
+		raw, err := json.Marshal(tpl.Values)
+		if err != nil {
+			return nil, err
+		}
+		resp.Values = &runtime.RawExtension{Raw: raw}
+	}
+	for _, res := range tpl.Resources {
+		item := editorapi.EditorTemplateResource{
+			Filename: res.Filename,
+			Key:      res.Key,
+		}
+		if res.Data != nil {
+			raw, err := json.Marshal(res.Data)
+			if err != nil {
+				return nil, err
+			}
+			item.Data = &runtime.RawExtension{Raw: raw}
+		}
+		resp.Resources = append(resp.Resources, item)
+	}
+	in.Response = resp
+
+	return in, nil
+}

vendor/kmodules.xyz/resource-metadata/apis/editor/doc.go

@@ -0,0 +1,21 @@
+/*
+Copyright AppsCode Inc. and Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package editor
+
+const (
+	GroupName = "editor.ui.k8s.appscode.com"
+)

vendor/kmodules.xyz/resource-metadata/apis/editor/install/install.go

@@ -0,0 +1,30 @@
+/*
+Copyright AppsCode Inc. and Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package install
+
+import (
+	"kmodules.xyz/resource-metadata/apis/editor/v1alpha1"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+)
+
+// Install registers the API group and adds types to a scheme
+func Install(scheme *runtime.Scheme) {
+	utilruntime.Must(v1alpha1.AddToScheme(scheme))
+	utilruntime.Must(scheme.SetVersionPriority(v1alpha1.SchemeGroupVersion))
+}

vendor/kmodules.xyz/resource-metadata/apis/editor/v1alpha1/doc.go

@@ -0,0 +1,23 @@
+/*
+Copyright AppsCode Inc. and Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1alpha1 is the v1alpha1 version of the API.
+
+// +k8s:deepcopy-gen=package,register
+// +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
+// +groupName=editor.ui.k8s.appscode.com
+package v1alpha1

vendor/kmodules.xyz/resource-metadata/apis/editor/v1alpha1/editortemplate_types.go

@@ -0,0 +1,80 @@
+/*
+Copyright AppsCode Inc. and Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	releasesapi "x-helm.dev/apimachinery/apis/releases/v1alpha1"
+)
+
+const (
+	ResourceKindEditorTemplate = "EditorTemplate"
+	ResourceEditorTemplate     = "editortemplate"
+	ResourceEditorTemplates    = "editortemplates"
+)
+
+// EditorTemplate loads the editor model, manifest and resources for an existing
+// installation identified by its metadata. It is the aggregated-API equivalent
+// of kubepack.dev/lib-app/pkg/editor.LoadResourceEditorModel (see
+// chart_template.go loadEditorModel2).
+//
+// +genclient
+// +genclient:nonNamespaced
+// +genclient:onlyVerbs=create
+// +k8s:openapi-gen=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Cluster
+type EditorTemplate struct {
+	metav1.TypeMeta `json:",inline"`
+	// Request identifies the installation to load.
+	// +optional
+	Request *EditorTemplateRequest `json:"request,omitempty"`
+	// Response holds the loaded editor template.
+	// +optional
+	Response *EditorTemplateResponse `json:"response,omitempty"`
+}
+
+type EditorTemplateRequest struct {
+	releasesapi.ModelMetadata `json:",inline"`
+	// ChartRef optionally selects the chart source. When unset, the resource
+	// editor chart resolved from the metadata resource is used.
+	// +optional
+	ChartRef *releasesapi.ChartSourceFlatRef `json:"chartRef,omitempty"`
+}
+
+type EditorTemplateResponse struct {
+	// Manifest is the rendered manifest of the existing installation.
+	// +optional
+	Manifest string `json:"manifest,omitempty"`
+	// Values is the editor model (values) of the existing installation.
+	// +optional
+	Values *runtime.RawExtension `json:"values,omitempty"`
+	// Resources holds the individual resources of the existing installation.
+	// +optional
+	Resources []EditorTemplateResource `json:"resources,omitempty"`
+}
+
+type EditorTemplateResource struct {
+	// +optional
+	Filename string `json:"filename,omitempty"`
+	// +optional
+	Key string `json:"key,omitempty"`
+	// +optional
+	Data *runtime.RawExtension `json:"data,omitempty"`
+}