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FROM alpine AS builder
ARG MDNS_REPEATER_VERSION=local
ADD mdns-repeater.c mdns-repeater.c
RUN set -ex && \
apk add --no-cache build-base && \
gcc -o /bin/mdns-repeater mdns-repeater.c -DMDNS_REPEATER_VERSION=\"${MDNS_REPEATER_VERSION}\"
FROM alpine
RUN set -ex && \
apk add --no-cache vlan libcap bash
COPY --from=builder /bin/mdns-repeater /bin/mdns-repeater
RUN chmod +x /bin/mdns-repeater
RUN setcap cap_net_raw=+ep /bin/mdns-repeater
COPY run.sh /app/
RUN chmod +x /app/run.sh
ENTRYPOINT /app/run.sh "${VLANS}"
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