Plugins: Add app (#108422)

apps/plugins/pkg/app/app.go

@@ -0,0 +1,65 @@
+package app
+
+import (
+	"context"
+
+	"github.com/grafana/grafana-app-sdk/app"
+	"github.com/grafana/grafana-app-sdk/resource"
+	"github.com/grafana/grafana-app-sdk/simple"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/klog/v2"
+
+	pluginsapi "github.com/grafana/grafana/apps/plugins/pkg/apis"
+)
+
+func New(cfg app.Config) (app.App, error) {
+	managedKinds := []simple.AppManagedKind{}
+	for _, kinds := range GetKinds() {
+		for _, k := range kinds {
+			managedKinds = append(managedKinds, simple.AppManagedKind{
+				Kind: k,
+			})
+		}
+	}
+
+	simpleConfig := simple.AppConfig{
+		Name:       "plugins",
+		KubeConfig: cfg.KubeConfig,
+		InformerConfig: simple.AppInformerConfig{
+			ErrorHandler: func(ctx context.Context, err error) {
+				klog.ErrorS(err, "Informer processing error")
+			},
+		},
+		ManagedKinds: managedKinds,
+	}
+
+	a, err := simple.NewApp(simpleConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	err = a.ValidateManifest(cfg.ManifestData)
+	if err != nil {
+		return nil, err
+	}
+
+	return a, nil
+}
+
+func GetKinds() map[schema.GroupVersion][]resource.Kind {
+	kinds := make(map[schema.GroupVersion][]resource.Kind)
+	manifest := pluginsapi.LocalManifest()
+	for _, v := range manifest.ManifestData.Versions {
+		gv := schema.GroupVersion{
+			Group:   manifest.ManifestData.Group,
+			Version: v.Name,
+		}
+		for _, k := range v.Kinds {
+			kind, ok := pluginsapi.ManifestGoTypeAssociator(k.Kind, v.Name)
+			if ok {
+				kinds[gv] = append(kinds[gv], kind)
+			}
+		}
+	}
+	return kinds
+}