Unified Search: Remove resource-server-specific methods from distributor (#107607)

* Remove resource-server-specific methods from distributor
* Remove BlobStoreServer interface implementation from distributor

Author: suntala

pkg/storage/unified/resource/search_server_distributor.go

@@ -41,11 +41,9 @@ func ProvideSearchDistributorServer(cfg *setting.Cfg, features featuremgmt.Featu
 
 	grpcServer := grpcHandler.GetServer()
 
-	resourcepb.RegisterResourceStoreServer(grpcServer, distributorServer)
 	// resourcepb.RegisterBulkStoreServer(grpcServer, distributorServer)
 	resourcepb.RegisterResourceIndexServer(grpcServer, distributorServer)
 	resourcepb.RegisterManagedObjectIndexServer(grpcServer, distributorServer)
-	resourcepb.RegisterBlobStoreServer(grpcServer, distributorServer)
 	grpc_health_v1.RegisterHealthServer(grpcServer, healthService)
 	_, err = grpcserver.ProvideReflectionService(cfg, grpcHandler)
 	if err != nil {
@@ -106,81 +104,6 @@ func (ds *distributorServer) GetStats(ctx context.Context, r *resourcepb.Resourc
 	return client.GetStats(ctx, r)
 }
 
-func (ds *distributorServer) Read(ctx context.Context, r *resourcepb.ReadRequest) (*resourcepb.ReadResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Key.Namespace, "Read")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.Read(ctx, r)
-}
-
-func (ds *distributorServer) Create(ctx context.Context, r *resourcepb.CreateRequest) (*resourcepb.CreateResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Key.Namespace, "Create")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.Create(ctx, r)
-}
-
-func (ds *distributorServer) Update(ctx context.Context, r *resourcepb.UpdateRequest) (*resourcepb.UpdateResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Key.Namespace, "Update")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.Update(ctx, r)
-}
-
-func (ds *distributorServer) Delete(ctx context.Context, r *resourcepb.DeleteRequest) (*resourcepb.DeleteResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Key.Namespace, "Delete")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.Delete(ctx, r)
-}
-
-func (ds *distributorServer) List(ctx context.Context, r *resourcepb.ListRequest) (*resourcepb.ListResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Options.Key.Namespace, "List")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.List(ctx, r)
-}
-
-func (ds *distributorServer) Watch(r *resourcepb.WatchRequest, srv resourcepb.ResourceStore_WatchServer) error {
-	// r -> consumer watch request
-	// srv -> stream connection with consumer
-	ctx := srv.Context()
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Options.Key.Namespace, "Watch")
-	if err != nil {
-		return err
-	}
-
-	// watchClient -> stream connection with storage-api pod
-	watchClient, err := client.Watch(ctx, r)
-	if err != nil {
-		return err
-	}
-
-	// WARNING
-	// in Watch, all messages flow from the resource server (watchClient) to the consumer (srv)
-	// but since this is a streaming connection, in theory the consumer could also send a message to the server
-	// however for the sake of simplicity we are not handling it here
-	// but if we decide to handle bi-directional message passing in this method, we will need to update this
-	// we also never handle EOF err, as the server never closes the connection willingly
-	for {
-		msg, err := watchClient.Recv()
-		if err != nil {
-			return err
-		}
-		_ = srv.Send(msg)
-	}
-}
-
 // TODO implement this if we want to support it in cloud
 // func (ds *DistributorServer) BulkProcess(srv BulkStore_BulkProcessServer) error {
 // 	return nil
@@ -204,24 +127,6 @@ func (ds *distributorServer) ListManagedObjects(ctx context.Context, r *resource
 	return client.ListManagedObjects(ctx, r)
 }
 
-func (ds *distributorServer) PutBlob(ctx context.Context, r *resourcepb.PutBlobRequest) (*resourcepb.PutBlobResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Resource.Namespace, "PutBlob")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.PutBlob(ctx, r)
-}
-
-func (ds *distributorServer) GetBlob(ctx context.Context, r *resourcepb.GetBlobRequest) (*resourcepb.GetBlobResponse, error) {
-	ctx, client, err := ds.getClientToDistributeRequest(ctx, r.Resource.Namespace, "GetBlob")
-	if err != nil {
-		return nil, err
-	}
-
-	return client.GetBlob(ctx, r)
-}
-
 func (ds *distributorServer) getClientToDistributeRequest(ctx context.Context, namespace string, methodName string) (context.Context, ResourceClient, error) {
 	ringHasher := fnv.New32a()
 	_, err := ringHasher.Write([]byte(namespace))