Dockerfile

FROM python:3.10
#RUN addgroup --system app && adduser --system --group app
ARG USERNAME=app
ARG USER_UID=1000
ARG USER_GID=$USER_UID

# Create the user
RUN groupadd --gid $USER_GID $USERNAME \
    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME

WORKDIR /app/
# https://docs.python.org/3/using/cmdline.html#envvar-PYTHONDONTWRITEBYTECODE
# Prevents Python from writing .pyc files to disk
ENV PYTHONDONTWRITEBYTECODE 1

# ensures that the python output is sent straight to terminal (e.g. your container log)
# without being first buffered and that you can see the output of your application (e.g. django logs)
# in real time. Equivalent to python -u: https://docs.python.org/3/using/cmdline.html#cmdoption-u
ENV PYTHONUNBUFFERED 1
ENV ENVIRONMENT prod
ENV TESTING 0

# 
COPY ./pyproject.toml ./poetry.lock* /app/

# Allow installing dev dependencies to run tests
ARG INSTALL_DEV=false

COPY . /app

RUN pip install .


ENV PYTHONPATH=/app

# chown all the files to the app user
RUN chown -R app:app $HOME && chown -R app /usr/local && chown -R app /app

# change to the app user
# Switch to a non-root user, which is recommended by Heroku.
USER app

# 
#CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
CMD ["bash", "start.sh"]