Dockerfile-4stage

### Create docker image from python3.7-slim
#
# Set up base venv image to start the build
FROM python:3.9-slim AS venv-image
# Create python venv and add it to PATH
RUN python -m venv /ledfx/venv
ENV PATH="/ledfx/venv/bin:$PATH"
RUN python -m pip install --upgrade pip wheel setuptools
# Install dependencies and ledfx, remove uneeded packages
RUN apt-get update && apt-get install -y --no-install-recommends \
        libatlas3-base \
        libavformat58 \
        portaudio19-dev \
        pulseaudio \
    && apt-get clean -y \
    && apt-get autoremove -y

### Create docker image from venv-image as compile-image to speed up builds
#
FROM venv-image AS compile-image
RUN apt-get update && apt-get install -y --no-install-recommends \
        gcc \
        git \
        libc-dev \
        nodejs \
        npm \
        python3-dev

### Create docker image from compile-image to pull and build from github
#
FROM compile-image AS build-image
COPY --from=venv-image /ledfx/venv /ledfx/venv
ENV PATH="/ledfx/venv/bin:$PATH"
WORKDIR /ledfx-git
RUN git clone https://github.com/THATDONFC/ledfx -b dev /ledfx-git \
      && cd /ledfx-git/frontend \
      && npm install -g yarn \
      && yarn && yarn build \
      && cd ..
RUN pip install -r requirements.txt
RUN python setup.py build
RUN python setup.py install

# Create docker image from venv-image to build dist-image
#
FROM venv-image AS dist-image

COPY --from=build-image /ledfx/venv /ledfx/venv
ENV PATH="/ledfx/venv/bin:$PATH"

RUN rm -rf /var/lib/apt/lists/*

RUN useradd --create-home ledfx --groups audio
WORKDIR /home/ledfx
USER ledfx

EXPOSE 8888/tcp
EXPOSE 5353/udp
ENTRYPOINT [ "ledfx"]