FROM alpine:3.18.0 AS builder ARG DI_VER=1.2.5 RUN apk add --update --no-cache \ build-base \ make \ curl WORKDIR /app # Build dumb-init RUN curl -Lo - "https://github.com/Yelp/dumb-init/archive/refs/tags/v${DI_VER}.tar.gz" | tar -xzf - && \ cd "dumb-init-${DI_VER}" && \ make SHELL=/bin/sh && \ mv dumb-init .. && \ cd .. COPY . ./ RUN make CFLAGS='-O3 -static' LDFLAGS='-flto' && \ strip build/lander && \ [ "$(readelf -d build/lander | grep NEEDED | wc -l)" = 0 ] FROM busybox:1.36.1 RUN mkdir /data && \ chown -R 1000:1000 /data COPY --from=builder /app/build/lander /app/dumb-init /bin/ WORKDIR /data USER 1000:1000 ENTRYPOINT ["/bin/dumb-init", "--"] CMD ["/bin/lander"]