FROM debian

COPY hello.c /src/

RUN \
	export DEBIAN_FRONTEND=noninteractive \
	&& apt update \
	&& apt install -y gcc \
	&& ( \
		cd /src \
		&& gcc -Wall -o /usr/local/bin/hello hello.c \
	) \
	&& apt autoremove -y --purge gcc \
	&& rm -rf \
		/var/lib/apt/lists/* \
		/var/tmp/* \
		/tmp/*

CMD ["hello"]