Dockerfile-simple

# Quicker docker build that assumes the application has already been built in the local directory.
# Might be useful for some debugging purposes, but in general we recommend using the regular Dockerfile
# which does a full clean build.
# Prerequisites:
#   npm install
#   grunt build
# Remove "target" from .dockerignore
# Then:
#   docker build . -t clusive -f Dockerfile-simple
#   docker run -p 8000:8000 -e DJANGO_CONFIG=local clusive

FROM python:3.7-alpine as base

# No point caching bytecode for single run
ENV PYTHONDONTWRITEBYTECODE 1

# Don't buffer log output inside the container
ENV PYTHONUNBUFFERED 1

COPY requirements.txt /
RUN \
  apk add --no-cache postgresql-libs git gcc musl-dev postgresql-dev npm && \
  python -m pip install -r /requirements.txt --no-cache-dir

# Don't run as root
RUN mkdir -p /app /home/app
RUN addgroup -S app && adduser -S -G app app && chown app /app /home/app
USER app

WORKDIR /app

RUN python -m nltk.downloader wordnet

COPY --chown=app target .
COPY src/entrypoint.sh .

RUN python manage.py collectstatic --no-input

EXPOSE 8000
STOPSIGNAL SIGINT

ENTRYPOINT ["/app/entrypoint.sh"]

HEALTHCHECK --interval=10s --timeout=3s \
	CMD wget --quiet --tries=1 --spider http://localhost:8000/ || exit 1

# gunicorn configuration suggestions from https://pythonspeed.com/articles/gunicorn-in-docker/
CMD ["gunicorn", "clusive_project.wsgi", "--bind=0.0.0.0:8000", "--worker-tmp-dir=/dev/shm", \
	"--workers=2", "--threads=4", "--worker-class=gthread"]