makefile-sanity.include

ifdef DOCKER_REGISTRY
ifneq ($(DOCKER_REGISTRY), $(shell echo $(DOCKER_REGISTRY) | sed -ne '/^[A-Za-z0-9.\/\-]\+\(:[0-9]\+\)\?\([A-Za-z0-9.\/-]\+\)\?$$/p'))
$(error Bad docker registry URL. Should follow format registry.example.com/foo, registry.example.com:1234 or registry.example.com:1234/foo)
endif
    REGISTRY=$(DOCKER_REGISTRY)/
else
    REGISTRY=vrnetlab/
endif