#
# Dockerfile for nifi-arm
#

FROM arm32v7/openjdk:8-jre
LABEL maintainer="EasyPi Software Foundation"
LABEL site="https://nifi.apache.org"

ARG UID=1000
ARG GID=1000
ARG NIFI_VERSION=1.9.0
ARG BASE_URL=https://archive.apache.org/dist
ARG MIRROR_BASE_URL=${MIRROR_BASE_URL:-${BASE_URL}}
ARG NIFI_BINARY_PATH=${NIFI_BINARY_PATH:-/nifi/${NIFI_VERSION}/nifi-${NIFI_VERSION}-bin.zip}
ARG NIFI_TOOLKIT_BINARY_PATH=${NIFI_TOOLKIT_BINARY_PATH:-/nifi/${NIFI_VERSION}/nifi-toolkit-${NIFI_VERSION}-bin.zip}

ENV NIFI_BASE_DIR=/opt/nifi
ENV NIFI_HOME ${NIFI_BASE_DIR}/nifi-current
ENV NIFI_TOOLKIT_HOME ${NIFI_BASE_DIR}/nifi-toolkit-current

ENV NIFI_PID_DIR=${NIFI_HOME}/run
ENV NIFI_LOG_DIR=${NIFI_HOME}/logs

# Download scripts
RUN mkdir -p /opt/nifi/scripts/ \
    && cd /opt/nifi/scripts/ \
    && curl -fSL https://github.com/apache/nifi/archive/rel/nifi-${NIFI_VERSION}.tar.gz \
     | tar xz --strip 4 nifi-rel-nifi-${NIFI_VERSION}/nifi-docker/dockerhub/sh/

# Setup NiFi user
RUN groupadd -g ${GID} nifi || groupmod -n nifi `getent group ${GID} | cut -d: -f1` \
    && useradd --shell /bin/bash -u ${UID} -g ${GID} -m nifi \
    && mkdir -p ${NIFI_BASE_DIR} \
    && chown -R nifi:nifi ${NIFI_BASE_DIR} \
    && apt-get update \
    && apt-get install -y jq xmlstarlet procps

USER nifi

# Download, validate, and expand Apache NiFi binary.
RUN curl -fSL ${MIRROR_BASE_URL}/${NIFI_BINARY_PATH} -o ${NIFI_BASE_DIR}/nifi-${NIFI_VERSION}-bin.zip \
    && echo "$(curl ${BASE_URL}/${NIFI_BINARY_PATH}.sha256) *${NIFI_BASE_DIR}/nifi-${NIFI_VERSION}-bin.zip" | sha256sum -c - \
    && unzip ${NIFI_BASE_DIR}/nifi-${NIFI_VERSION}-bin.zip -d ${NIFI_BASE_DIR} \
    && rm ${NIFI_BASE_DIR}/nifi-${NIFI_VERSION}-bin.zip \
    && mv ${NIFI_BASE_DIR}/nifi-${NIFI_VERSION} ${NIFI_HOME} \
    && mkdir -p ${NIFI_HOME}/conf \
    && mkdir -p ${NIFI_HOME}/database_repository \
    && mkdir -p ${NIFI_HOME}/flowfile_repository \
    && mkdir -p ${NIFI_HOME}/content_repository \
    && mkdir -p ${NIFI_HOME}/provenance_repository \
    && mkdir -p ${NIFI_HOME}/state \
    && mkdir -p ${NIFI_LOG_DIR} \
    && ln -s ${NIFI_HOME} ${NIFI_BASE_DIR}/nifi-${NIFI_VERSION}

VOLUME ${NIFI_LOG_DIR} \
       ${NIFI_HOME}/conf \
       ${NIFI_HOME}/database_repository \
       ${NIFI_HOME}/flowfile_repository \
       ${NIFI_HOME}/content_repository \
       ${NIFI_HOME}/provenance_repository \
       ${NIFI_HOME}/state

# Clear nifi-env.sh in favour of configuring all environment variables in the Dockerfile
RUN echo "#!/bin/sh\n" > $NIFI_HOME/bin/nifi-env.sh

# Web HTTP(s) & Socket Site-to-Site Ports
EXPOSE 8080 8443 10000

WORKDIR ${NIFI_HOME}

ENTRYPOINT ["../scripts/start.sh"]