feat: provides MT Dashboard service (#110447)

apps/dashboard/pkg/migration/conversion/v0.go

@@ -1,6 +1,10 @@
 package conversion
 
 import (
+	"context"
+
+	"github.com/grafana/authlib/types"
+	"github.com/grafana/grafana/pkg/apimachinery/identity"
 	"k8s.io/apimachinery/pkg/conversion"
 	"k8s.io/utils/ptr"
 
@@ -10,6 +14,7 @@ import (
 	dashv2beta1 "github.com/grafana/grafana/apps/dashboard/pkg/apis/dashboard/v2beta1"
 	"github.com/grafana/grafana/apps/dashboard/pkg/migration"
 	"github.com/grafana/grafana/apps/dashboard/pkg/migration/schemaversion"
+	"k8s.io/apiserver/pkg/endpoints/request"
 )
 
 func Convert_V0_to_V1(in *dashv0.Dashboard, out *dashv1.Dashboard, scope conversion.Scope) error {
@@ -23,7 +28,23 @@ func Convert_V0_to_V1(in *dashv0.Dashboard, out *dashv1.Dashboard, scope convers
 		},
 	}
 
-	if err := migration.Migrate(out.Spec.Object, schemaversion.LATEST_VERSION); err != nil {
+	// the scope passed into this function is used in k8s apimachinery for migrations, but we also need the context
+	// to have what grafana expects in the request context, so that we can retrieve datasources for migrating
+	// some of the old dashboard schemas (these migrations used to be run in the frontend)
+	ctx := request.WithNamespace(context.Background(), in.GetNamespace())
+	nsInfo, err := types.ParseNamespace(in.GetNamespace())
+	if err != nil {
+		out.Status.Conversion.Failed = true
+		out.Status.Conversion.Error = ptr.To(err.Error())
+		return nil
+	}
+
+	// a background service identity is used here because the user who is reading the specific dashboard
+	// may not have access to all the datasources in the dashboard, but the migration still needs to take place
+	// in order to be able to convert between k8s versions (so that we have a guaranteed structure to convert between)
+	ctx, _ = identity.WithServiceIdentity(ctx, nsInfo.OrgID)
+
+	if err := migration.Migrate(ctx, out.Spec.Object, schemaversion.LATEST_VERSION); err != nil {
 		out.Status.Conversion.Failed = true
 		out.Status.Conversion.Error = ptr.To(err.Error())
 		return nil