Merge pull request #233 from seemethere/image_based

switch to not be tag based but image based

Author: seemethere

image/Makefile

@@ -73,10 +73,10 @@ engine-$(ARCH).tar: engine-$(ARCH)-docker-compat.tar $(DOCKER2OCI)
 engine-$(ARCH)-docker-compat.tar: image-linux
 	docker save -o $@ $$(cat $<)
 
+image-linux-dm: ENGINE_IMAGE:=$(ENGINE_IMAGE)-dm
 image-linux-dm: $(ENGINE_DIR)/Dockerfile.engine-dm
 	$(IMAGE_BUILD)
-	docker tag $(IMAGE_WITH_TAG) $(IMAGE_WITH_TAG)-dm
-	echo $(IMAGE_WITH_TAG)-dm > $@
+	echo $(IMAGE_WITH_TAG) > $@
 
 engine-$(ARCH)-dm.tar: engine-$(ARCH)-dm-docker-compat.tar $(DOCKER2OCI)
 	mkdir -p artifacts