IMAGE_PREFIX = jupyterhub/singleuser-builder-venv- VERSION = $(shell cat version) .PHONY: build build: docker build -t $(IMAGE_PREFIX)3.5:$(VERSION) . -f Dockerfile docker build -t $(IMAGE_PREFIX)2.7:$(VERSION) . -f Dockerfile.py2 push: docker push "$(IMAGE_PREFIX)3.5:$(VERSION)" docker push "$(IMAGE_PREFIX)2.7:$(VERSION)"