FROM alpine

COPY hello.c /src/

RUN \
	export DEBIAN_FRONTEND=noninteractive \
	&& apk add --no-cache --virtual .build-deps \
		gcc \
		musl-dev \
	&& ( \
		cd /src \
		&& gcc -Wall -o /usr/local/bin/hello hello.c \
	) \
	&& apk del --no-cache .build-deps \
	&& rm -rf \
		/var/tmp/* \
		/tmp/*

CMD ["hello"]