FROM jedisct1/alpine-runit:latest
MAINTAINER Frank Denis
ENV SERIAL 3

ENV BUILD_DEPS   make gcc musl-dev git libevent-dev expat-dev shadow autoconf file libressl-dev
ENV RUNTIME_DEPS bash util-linux coreutils findutils grep libressl ldns ldns-tools libevent expat libexecinfo coreutils drill

RUN set -x && \
    apk --update upgrade && apk add $RUNTIME_DEPS $BUILD_DEPS

ENV UNBOUND_VERSION 1.6.8
ENV UNBOUND_SHA256 e3b428e33f56a45417107448418865fe08d58e0e7fea199b855515f60884dd49
ENV UNBOUND_DOWNLOAD_URL https://www.unbound.net/downloads/unbound-${UNBOUND_VERSION}.tar.gz

RUN set -x && \
    mkdir -p /tmp/src && \
    cd /tmp/src && \
    wget -O unbound.tar.gz $UNBOUND_DOWNLOAD_URL && \
    echo "${UNBOUND_SHA256} *unbound.tar.gz" | sha256sum -c - && \
    tar xzf unbound.tar.gz && \
    rm -f unbound.tar.gz && \
    cd unbound-${UNBOUND_VERSION} && \
    groupadd _unbound && \
    useradd -g _unbound -s /etc -d /dev/null _unbound && \
    ./configure --prefix=/opt/unbound --with-pthreads \
    --with-username=_unbound --with-libevent --enable-event-api && \
    make install && \
    mv /opt/unbound/etc/unbound/unbound.conf /opt/unbound/etc/unbound/unbound.conf.example && \
    rm -fr /opt/unbound/share/man && \
    rm -fr /tmp/* /var/tmp/*

ENV LIBSODIUM_VERSION 1.0.16
ENV LIBSODIUM_SHA256 eeadc7e1e1bcef09680fb4837d448fbdf57224978f865ac1c16745868fbd0533
ENV LIBSODIUM_DOWNLOAD_URL https://download.libsodium.org/libsodium/releases/libsodium-${LIBSODIUM_VERSION}.tar.gz

RUN set -x && \
    mkdir -p /tmp/src && \
    cd /tmp/src && \
    wget -O libsodium.tar.gz $LIBSODIUM_DOWNLOAD_URL && \
    echo "${LIBSODIUM_SHA256} *libsodium.tar.gz" | sha256sum -c - && \
    tar xzf libsodium.tar.gz && \
    rm -f libsodium.tar.gz && \
    cd libsodium-${LIBSODIUM_VERSION} && \
    env CFLAGS=-Ofast ./configure --disable-dependency-tracking && \
    make check && make install && \
    ldconfig /usr/local/lib && \
    rm -fr /tmp/* /var/tmp/*

ENV DNSCRYPT_WRAPPER_GIT_URL https://github.com/jedisct1/dnscrypt-wrapper.git
ENV DNSCRYPT_WRAPPER_GIT_BRANCH xchacha-stamps

COPY queue.h /tmp

RUN set -x && \
    mkdir -p /tmp/src && \
    cd /tmp/src && \
    git clone --branch=${DNSCRYPT_WRAPPER_GIT_BRANCH} ${DNSCRYPT_WRAPPER_GIT_URL} && \
    cd dnscrypt-wrapper && \
    sed -i 's#<sys/queue.h>#"/tmp/queue.h"#' compat.h && \
    sed -i 's#HAVE_BACKTRACE#NO_BACKTRACE#' compat.h && \
    mkdir -p /opt/dnscrypt-wrapper/empty && \
    groupadd _dnscrypt-wrapper && \
    useradd -g _dnscrypt-wrapper -s /etc -d /opt/dnscrypt-wrapper/empty _dnscrypt-wrapper && \
    groupadd _dnscrypt-signer && \
    useradd -g _dnscrypt-signer -G _dnscrypt-wrapper -s /etc -d /dev/null _dnscrypt-signer && \
    make configure && \
    env CFLAGS=-Ofast ./configure --prefix=/opt/dnscrypt-wrapper && \
    make install && \
    rm -fr /tmp/* /var/tmp/*

RUN set -x && \
    echo apk del --purge $BUILD_DEPS && \
    echo rm -rf /tmp/* /var/tmp/* /usr/local/include

RUN mkdir -p \
    /etc/service/unbound \
    /etc/service/watchdog

COPY entrypoint.sh /

COPY unbound.sh /etc/service/unbound/run
COPY unbound-check.sh /etc/service/unbound/check

COPY dnscrypt-wrapper.sh /etc/service/dnscrypt-wrapper/run

COPY key-rotation.sh /etc/service/key-rotation/run
COPY watchdog.sh /etc/service/watchdog/run

VOLUME ["/opt/dnscrypt-wrapper/etc/keys"]

EXPOSE 443/udp 443/tcp

CMD ["/sbin/start_runit"]

ENTRYPOINT ["/entrypoint.sh"]