ROS2_DISTRO ?= $(shell cat .env | grep IMAGE_TAG | cut -d = -f 2) IMAGE_NAME := ros2_devel IMAGE_TAG = $(ROS2_DISTRO) APT_MIRROR ?= jp USER_ID :=$(shell id -u) GROUP_ID :=$(shell id -g) DOCKER_BUILD_OPTS ?= .PHONY: build-image build-image: docker build $(DOCKER_BUILD_OPTS) \ -t $(IMAGE_NAME):$(IMAGE_TAG) \ --build-arg ROS2_DISTRO=$(ROS2_DISTRO) \ --build-arg APT_MIRROR=$(APT_MIRROR) \ --build-arg USER_ID=$(USER_ID) \ --build-arg GROUP_ID=$(GROUP_ID) .