go%: docker run -ti -e "HOME="$(HOME)" -v $$(pwd)/output:/output -v $$(pwd)/$@.sh:/build.sh golang:latest /build.sh %: docker run -ti -e HOME="$(HOME)" -v $$(pwd)/output:/output -v $$(pwd)/$@.sh:/build.sh ubuntu-builder:latest /build.sh .PHONY: builder-image builder-image: cd builder-image && docker build --no-cache -t ubuntu-builder:latest .