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Dockerfile
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FROM python:3.7-slim-buster
LABEL maintainer="[email protected]"
ENV container=docker
ADD requirements.txt /tmp
ENV EXPORTER_PORT=9123 \
EXPORTER_HOME=/exporter \
EXPORTER_METRICS_DIR=/exporter/metrics \
EXPORTER_LOGS_DIR=/exporter/logs
RUN set -ex \
&& apt-get update \
&& apt-get install --no-install-recommends net-tools dos2unix dumb-init -y \
&& pip install -r /tmp/requirements.txt \
&& mkdir -p ${EXPORTER_HOME} ${EXPORTER_LOGS_DIR} \
&& rm -rf /tmp/* \
&& rm -rf /var/lib/apt/lists/* /var/log/dpkg.log \
&& apt-get autoremove -yqq --purge \
&& apt-get clean
ADD hadoop_exporter /exporter/hadoop_exporter
ADD metrics /exporter/metrics
ADD service.py /service.py
ADD entrypoint.sh /entrypoint.sh
RUN set -ex \
&& chmod +x /entrypoint.sh /service.py
ENV PYTHONPATH=${PYTHONPATH}:${EXPORTER_HOME}
EXPOSE ${EXPORTER_PORT}
ENTRYPOINT ["/usr/bin/dumb-init", "--", "/entrypoint.sh"]