Merge pull request kubernetes-sigs#269 from weizhouapache/fix-release-templates

Makefile: Fix release-templates

Author: k8s-ci-robot

Makefile

@@ -310,6 +310,7 @@ clean: ## Cleans up everything.
 	rm -rf $(TOOLS_BIN_DIR)
 	rm -rf cluster-api
 	rm -rf test/e2e/data/infrastructure-cloudstack/*/*yaml
+	rm -rf config/.flag.mk config/.flag-test.mk .dockerflag.mk
 
 ##@ Release
 ## --------------------------------------
@@ -344,7 +345,8 @@ release-alias-tag: # Adds the tag to the last build tag.
 	gcloud container images add-tag -q $(CONTROLLER_IMG):$(TAG) $(CONTROLLER_IMG):$(RELEASE_ALIAS_TAG)
 
 .PHONY: release-templates
-release-templates: $(RELEASE_DIR) ## Generate release templates
+release-templates: ## Generate release templates
+	@mkdir -p $(RELEASE_DIR)
 	cp templates/cluster-template*.yaml $(RELEASE_DIR)/
 
 .PHONY: upload-staging-artifacts