FROM elixir:1.11 AS build

# install build dependencies
RUN set -eux \
    &&  apt-get update \
    &&  apt-get install -y --no-install-recommends \
    apt-transport-https \
    ca-certificates \
    curl \
    &&  curl -sS https://deb.nodesource.com/gpgkey/nodesource.gpg.key | gpg --dearmor > /etc/apt/trusted.gpg.d/nodesource.gpg \
    &&  echo "deb https://deb.nodesource.com/node_14.x stretch main" > /etc/apt/sources.list.d/nodesource.list \
    &&  apt-get update \
    &&  apt-get install -y --no-install-recommends \
    nodejs \
    &&  apt-get clean \
    &&  rm -rf /var/lib/apt/lists/*

# prepare build dir
WORKDIR /opt/confient

# install hex + rebar
RUN mix local.hex --force && \
    mix local.rebar --force

# set build ENV
ENV MIX_ENV=prod

# install mix dependencies
COPY mix.exs mix.lock ./
COPY config config
RUN mix do deps.get, deps.compile

# build assets
COPY assets/package.json assets/package-lock.json ./assets/
RUN npm --prefix ./assets ci --progress=false --no-audit --loglevel=error

COPY priv priv
COPY assets assets
RUN npm run --prefix ./assets deploy
RUN mix phx.digest

# compile and build release
COPY lib lib
# uncomment COPY if rel/ exists
# COPY rel rel
RUN mix do compile, release

# prepare release image
FROM elixir:1.11 AS app

RUN set -eux \
    &&  apt-get update \
    &&  apt-get install -y --no-install-recommends \
    postgresql-client \
    &&  apt-get clean \
    &&  rm -rf /var/lib/apt/lists/*

RUN useradd -ms /bin/bash confient

RUN mkdir -p /opt/confient /srv/confient/uploads

WORKDIR /opt/confient

RUN chown confient:confient /opt/confient /srv/confient/uploads

USER confient

COPY --from=build --chown=confient:confient /opt/confient/_build/prod/rel/confient ./

COPY entrypoint.sh /opt/confient/entrypoint.sh

ENV HOME=/opt/confient

# image-spec annotations using labels
# https://github.com/opencontainers/image-spec/blob/master/annotations.md
LABEL org.opencontainers.image.source="https://git.athelas-conseils.fr/papey/confient"
LABEL org.opencontainers.image.authors="Wilfried OLLIVIER"
LABEL org.opencontainers.image.title="Confient"
LABEL org.opencontainers.image.description="Confient runtime"
LABEL org.opencontainers.image.licences="Unlicense"

CMD ["./entrypoint.sh"]