# Builder image
FROM golang:1.12-alpine as builder

ENV PATH=/src/go/bin:/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

RUN install -d /src && \
    install -d /src/mosquitto && \
    install -d /src/mosquitto-auth

RUN apk add --no-cache \
    curl \
    c-ares-dev \
    gcc \
    git \
    g++ \
    libwebsockets-dev \
    make \
    musl-dev \
    openssl-dev \
    sed \
    tar

RUN curl -s https://mosquitto.org/files/source/mosquitto-1.6.2.tar.gz | tar --strip-components=1 -C /src/mosquitto -xzf -
RUN make -C /src/mosquitto \
    WITH_MEMORY_TRACKING=no \
    WITH_WEBSOCKETS=yes \
    WITH_SRV=yes \
    WITH_TLS_PSK=no \
    WITH_ADNS=no \
    prefix=/usr \
    binary && \
    make -C /src/mosquitto \
    prefix=/usr \
    DESTDIR="/install" \
    install

RUN curl -s -L https://github.com/iegomez/mosquitto-go-auth/archive/0.3.0.tar.gz | tar --strip-components=1 -C /src/mosquitto-auth -xzf -
RUN cd /src/mosquitto-auth && \
    CGO_CFLAGS="-I/install/usr/include -fPIC" \
    CGO_LDFLAGS="-shared" \
    make

# not used:
    #CGO_ENABLED="1" \
    #GOOS="linux" \

# Final image
FROM alpine
LABEL description="Eclipse Mosquitto MQTT Broker"
ENV USER=mosquitto \
    UID=1000 \
    GID=1000

RUN addgroup --gid "$GID" "$USER" \
    && adduser \
    --disabled-password \
    --gecos "" \
    --home "/mosquitto" \
    --ingroup "$USER" \
    --no-create-home \
    --uid "$UID" \
    "$USER"

RUN install -d -o mosquitto /mosquitto && \
    install -d -o mosquitto /mosquitto/config && \
    install -d -o mosquitto /mosquitto/data && \
    install -d -o mosquitto /mosquitto/log

RUN apk add --no-cache \ 
    c-ares \
    libwebsockets \
     musl

COPY --from=builder /install /
COPY --from=builder /src/mosquitto-auth/go-auth.so /mosquitto/

VOLUME /mosquitto/config /mosquitto/data /mosquitto/log

WORKDIR /mosquitto

USER mosquitto

EXPOSE 1883 8883

COPY mosquitto.conf /mosquitto/

ENTRYPOINT ["mosquitto"]
CMD ["-c", "/mosquitto/mosquitto.conf"]