ARG BUILD_FROM
FROM ${BUILD_FROM}

ARG BUILD_ARCH
ARG TELEGRAF_VERSION

RUN echo 'hosts: files dns' >> /etc/nsswitch.conf
RUN apk add --no-cache iputils ca-certificates net-snmp-tools procps lm_sensors tzdata su-exec libcap && \
    update-ca-certificates

ENV TELEGRAF_VERSION ${TELEGRAF_VERSION}

RUN set -ex && \
    mkdir ~/.gnupg; \
    echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf; \
    apk add --no-cache --virtual .build-deps wget gnupg tar && \
    for key in \
        05CE15085FC09D18E99EFB22684A14CF2582E0C5 ; \
    do \
        gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys "$key" ; \
    done && \
    wget --no-verbose https://dl.influxdata.com/telegraf/releases/telegraf-${TELEGRAF_VERSION}_static_linux_amd64.tar.gz.asc && \
    wget --no-verbose https://dl.influxdata.com/telegraf/releases/telegraf-${TELEGRAF_VERSION}_static_linux_amd64.tar.gz && \
    gpg --batch --verify telegraf-${TELEGRAF_VERSION}_static_linux_amd64.tar.gz.asc telegraf-${TELEGRAF_VERSION}_static_linux_amd64.tar.gz && \
    mkdir -p /usr/src /etc/telegraf && \
    tar -C /usr/src -xzf telegraf-${TELEGRAF_VERSION}_static_linux_amd64.tar.gz && \
    mv /usr/src/telegraf*/etc/telegraf/telegraf.conf /etc/telegraf/ && \
    mkdir /etc/telegraf/telegraf.d && \
    cp -a /usr/src/telegraf*/usr/bin/telegraf /usr/bin/ && \
    gpgconf --kill all && \
    rm -rf *.tar.gz* /usr/src /root/.gnupg && \
    apk del .build-deps && \
    addgroup -S telegraf && \
    adduser -S telegraf -G telegraf && \
    chown -R telegraf:telegraf /etc/telegraf

EXPOSE 8125/udp 8092/udp 8094

COPY entrypoint.sh /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]
CMD ["telegraf"]

# Build arguments
ARG BUILD_ARCH
ARG BUILD_DATE
ARG BUILD_DESCRIPTION
ARG BUILD_NAME
ARG BUILD_REF
ARG BUILD_REPOSITORY
ARG BUILD_VERSION

# Labels
LABEL \
    io.hass.name="${BUILD_NAME}" \
    io.hass.description="${BUILD_DESCRIPTION}" \
    io.hass.arch="${BUILD_ARCH}" \
    io.hass.type="addon" \
    io.hass.version=${BUILD_VERSION} \
    maintainer="fbonelle" \
    org.opencontainers.image.title="${BUILD_NAME}" \
    org.opencontainers.image.description="${BUILD_DESCRIPTION}" \
    org.opencontainers.image.vendor="fbonelle's addons" \
    org.opencontainers.image.authors="fbonelle" \
    org.opencontainers.image.licenses="MIT" \
    org.opencontainers.image.created=${BUILD_DATE} \
    org.opencontainers.image.revision=${BUILD_REF} \
    org.opencontainers.image.version=${BUILD_VERSION}