FROM alpine AS builder ARG MDNS_REPEATER_VERSION=local ADD mdns-repeater.c mdns-repeater.c RUN set -ex && \ apk add build-base && \ gcc -o /bin/mdns-repeater mdns-repeater.c -DMDNS_REPEATER_VERSION=\"${MDNS_REPEATER_VERSION}\" FROM alpine RUN set -ex && \ apk add vlan libcap bash COPY --from=builder /bin/mdns-repeater /bin/mdns-repeater RUN chmod +x /bin/mdns-repeater RUN setcap cap_net_raw=+ep /bin/mdns-repeater COPY run.sh /app/ RUN chmod +x /app/run.sh ENTRYPOINT ["/app/run.sh"] CMD ["/bin/mdns-repeater", "-f", "eth0.20", "eth0.100"]