#
# Copyright (c) 2017-2022, The PurpleI2P Project
#
# This file is part of Purple i2pd project and licensed under BSD3
#
# See full license text in LICENSE file at top of project tree
#

FROM alpine:latest
LABEL authors="Mikal Villa <mikal@sigterm.no>, Darknet Villain <supervillain@riseup.net>"
LABEL maintainer="R4SAS <r4sas@i2pmail.org>"

LABEL org.opencontainers.image.source=https://github.com/PurpleI2P/i2pd
LABEL org.opencontainers.image.documentation=https://i2pd.readthedocs.io/en/latest/
LABEL org.opencontainers.image.licenses=BSD3

# Expose git branch, tag and URL variables as arguments
ARG GIT_BRANCH="openssl"
ENV GIT_BRANCH=${GIT_BRANCH}
ARG GIT_TAG=""
ENV GIT_TAG=${GIT_TAG}
ARG REPO_URL="https://github.com/PurpleI2P/i2pd.git"
ENV REPO_URL=${REPO_URL}

ENV I2PD_HOME="/home/i2pd"
ENV DATA_DIR="${I2PD_HOME}/data"
ENV DEFAULT_ARGS=" --datadir=$DATA_DIR"

RUN mkdir -p "$I2PD_HOME" "$DATA_DIR" \
    && adduser -S -h "$I2PD_HOME" i2pd \
    && chown -R i2pd:nobody "$I2PD_HOME"


# 1. Building binary
#   Each RUN is a layer, adding the dependencies and building i2pd in one layer takes around 8-900Mb, so to keep the
#   image under 20mb we need to remove all the build dependencies in the same "RUN" / layer.
#
#   1. install deps, clone and build.
#   2. strip binaries.
#   3. Purge all dependencies and other unrelated packages, including build directory.

RUN apk update \
    && apk --no-cache --virtual build-dependendencies add make gcc g++ libtool zlib-dev boost-dev build-base openssl-dev openssl miniupnpc-dev git \
    && mkdir -p /tmp/build \
    && cd /tmp/build && git clone -b ${GIT_BRANCH} ${REPO_URL} \
    && cd i2pd \
    && if [ -n "${GIT_TAG}" ]; then git checkout tags/${GIT_TAG}; fi \
    && make -j$(nproc) USE_UPNP=yes \
    && cp -R contrib/certificates /i2pd_certificates \
    && mkdir -p /usr/local/bin \
    && mv i2pd /usr/local/bin \
    && cd /usr/local/bin \
    && strip i2pd \
    && rm -fr /tmp/build && apk --no-cache --purge del build-dependendencies build-base fortify-headers boost-dev zlib-dev openssl-dev \
    miniupnpc-dev boost-python3 python3 gdbm boost-unit_test_framework linux-headers boost-prg_exec_monitor \
    boost-serialization boost-wave boost-wserialization boost-math boost-graph boost-regex git pcre2 \
    libtool g++ gcc

# 2. Adding required libraries to run i2pd to ensure it will run.
RUN apk --no-cache add boost-filesystem boost-system boost-program_options boost-date_time boost-thread boost-iostreams boost-json openssl miniupnpc musl-utils libstdc++

# 3. Copy preconfigured config file and entrypoint
COPY i2pd-docker.conf "$DATA_DIR/i2pd.conf"
RUN chown i2pd:nobody "$DATA_DIR/i2pd.conf"
COPY entrypoint.sh /entrypoint.sh
RUN chmod a+x /entrypoint.sh

RUN echo "export DATA_DIR=${DATA_DIR}" >> /etc/profile
VOLUME "$DATA_DIR"
EXPOSE 7070 4444 4447 7656 2827 7654 7650
USER i2pd

ENTRYPOINT [ "/entrypoint.sh" ]
