FROM python:3.8.1-slim-buster

RUN useradd wagtail

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PORT=8000

# Install system packages required by Wagtail and Django
RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-recommends \
    build-essential \
    libpq-dev \
    libmariadbclient-dev \
    libjpeg62-turbo-dev \
    zlib1g-dev \
    libwebp-dev \
 && rm -rf /var/lib/apt/lists/*

# Upgrade pip to the latest version
RUN pip install --upgrade pip

# Install the application server
RUN pip install "gunicorn==20.0.4"

COPY requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

# Copy the source code of the project into the container
COPY --chown=wagtail:wagtail . .

# Set this directory to be owned by the "wagtail" user
RUN chown wagtail:wagtail /app

# Use user "wagtail" to run the build commands below and the server itself
USER wagtail

# Collect static files
RUN python manage.py collectstatic --noinput --clear

# Port used by this container to serve HTTP
EXPOSE 8000

# Runtime command that executes when "docker run" is called
CMD ["sh", "-c", "python manage.py migrate --noinput && gunicorn saburly.wsgi:application"]