ab-netcat/Dockerfile

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# simple netcat (BSD) persistent "listen" server running on port 5555
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# running on Alpine Linux
FROM alpine:3.11
# standardized labels
LABEL maintainer="Asif Bacchus <asif@bacchus.cloud>"
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LABEL org.label-schema.cmd="docker run --rm docker.asifbacchus.app/ab-netcat help"
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LABEL org.label-schema.description="Persistent netcat (BSD) listen server on Alpine Linux"
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LABEL org.label-schema.name="ab-netcat"
LABEL org.label-schema.schema-version="1.0"
LABEL org.label-schema.url="https://git.asifbacchus.app/ab-docker/ab-netcat"
LABEL org.label-schema.usage="https://git.asifbacchus.app/ab-docker/ab-netcat/wiki"
LABEL org.label-schema.vcs-url="https://git.asifbacchus.app/ab-docker/ab-netcat.git"
# install tzdata so timezone can be set
RUN apk --update --no-cache add \
tzdata \
netcat-openbsd
# expose port
EXPOSE 5555
# environment variables
ENV TZ=Etc/UTC
# copy files
COPY entrypoint.sh /
# entrypoint script
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ENTRYPOINT [ "/entrypoint.sh" ]
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# run nc persistent by default
CMD [ "nc", "-klv", "5555" ]
# add build date and version labels
ARG BUILD_DATE
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LABEL org.label-schema.version="1.0"
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LABEL org.label-schema.build-date=${BUILD_DATE}
#EOF