container-images/ubuntu-dev/Makefile

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Makefile
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DOCKER ?= $(shell which docker)
FROM_IMAGE ?= ubuntu
FROM_TAG ?= latest
FROM := $(FROM_IMAGE):$(FROM_TAG)
REGISTRY ?= docker.usersys
NAME ?= $(REGISTRY)/$(USER)/$(FROM_IMAGE)-dev:$(FROM_TAG)
default: build
Dockerfile: Dockerfile.in
m4 --define=DEV_USER=$(USER) --define=FROM_IMAGE=$(FROM) $< > $@
build: .build
.build: Dockerfile .pull
$(DOCKER) build -t $(NAME) . && touch $@
pull: .pull
.pull:
$(DOCKER) pull $(FROM) && touch $@
clean:
rm -rf .build .pull Dockerfile *~