18-Dockerfile-tiny-native-static-upx

FROM ubuntu:22.04

RUN groupadd -g 10001 group
RUN useradd -u 10001 -g 10001 user

RUN apt update && apt-get install -y upx

ARG path=target/tiny

COPY $path /tiny

RUN upx --lzma --best /tiny -o /tiny.upx

FROM scratch

COPY --from=0 /etc/group /etc/group
COPY --from=0 /etc/passwd /etc/passwd
COPY --from=0 --chown=user:group /tmp /tmp

USER user

COPY --from=0 --chown=user:group /tiny.upx /tiny.upx
ENTRYPOINT ["/tiny.upx"]