FROM bash:5 as prefetch ARG DUMB_INIT_VERSION=1.2.5 RUN set -ex \ && apk --no-cache add \ curl \ && curl -sSfLo /dumb-init "https://github.com/Yelp/dumb-init/releases/download/v${DUMB_INIT_VERSION}/dumb-init_${DUMB_INIT_VERSION}_x86_64" \ && chmod 0755 /dumb-init FROM bash:5 RUN set -ex \ && apk --no-cache add \ coreutils \ curl \ git \ grep \ openssh COPY --from=prefetch /dumb-init /usr/local/bin/ COPY docker-entrypoint.sh /usr/local/bin/ ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]