define build_docker_locally
	$(eval TARGET = ${patsubst build/docker/$(1)/%/$(DUMMY),%,${@}})
	$(eval IMG_NAME = $(2)-$(TARGET))
	@mkdir -p $(@D)
	@echo "Building docker $(TARGET)"
	@cat build_image/docker/$(1)/$(TARGET)/Dockerfile.in \
		| sed -e 's|_DOCKER_BASE_|$(DOCKER_BASE)|g' \
		| sed -e 's|_NS_|$(DOCKER_NS)|g' \
		| sed -e 's|_TAG_|$(IMG_TAG)|g' \
		> $(@D)/Dockerfile
	docker build -f $(@D)/Dockerfile \
		-t $(IMG_NAME) \
		-t $(IMG_NAME):$(IMG_TAG) \
		. ;
	@touch $@ ;
endef

define build_docker_hub
	dir=$*; \
	IMG=hyperledger/$(2)-$$dir; \
	echo "Building $$IMG"; \
	docker build \
	-t $$IMG \
	-t $$IMG:x86_64-latest \
	build_image/dockerhub/latest/$(1)/$$dir
endef