generic Make build target for building docker images

build.mak

# generic build rule
docker/build/%: docker/recipes/%/Dockerfile .dockerignore
	@echo
	@echo
	@echo =================================== Building $@
	@echo
	@echo
	docker build --rm -t $* -f "$<" .
	docker inspect --format="{{.Id}}" $* > $@
	@echo
	@echo =================================== DONE: $@ `cat "$@"`
	@echo

clean:
	rm -v docker/build/*
.PHONY: clean

gc:
	@docker ps --filter "status=exited" | grep -v data | grep -v ^CONTAINER | awk '{print $$1}' | xargs docker rm
.PHONY: gc

gci:
	docker images -q --filter "dangling=true" | xargs docker rmi
.PHONY: gci%