Dockerfile

FROM ubuntu:focal as app

# System requirements

RUN apt-get update && \
    apt-get upgrade -qy && DEBIAN_FRONTEND=noninteractive apt-get install language-pack-en locales git \
    python3.8-dev python3-virtualenv libmysqlclient-dev libssl-dev build-essential pkg-config wget unzip -qy && \
    rm -rf /var/lib/apt/lists/*

# Python is Python3.
RUN ln -s /usr/bin/python3 /usr/bin/python

# Use UTF-8.
RUN locale-gen en_US.UTF-8
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8


ARG COMMON_APP_DIR="/edx/app"
ARG XQUEUE_APP_DIR="${COMMON_APP_DIR}/xqueue"
ENV XQUEUE_APP_DIR="${COMMON_APP_DIR}/xqueue"
ENV XQUEUE_VENV_DIR="${COMMON_APP_DIR}/xqueue/venvs/xqueue"
ENV XQUEUE_CODE_DIR="${XQUEUE_APP_DIR}/xqueue"

ENV PATH="$XQUEUE_VENV_DIR/bin:$PATH"

# Working directory will be root of repo.
WORKDIR ${XQUEUE_CODE_DIR}

RUN virtualenv -p python3.8 --always-copy ${XQUEUE_VENV_DIR}

# Copy just Python requirements & install them.
COPY requirements ${XQUEUE_CODE_DIR}/requirements
COPY requirements.txt ${XQUEUE_APP_DIR}/requirements.txt
COPY Makefile ${XQUEUE_CODE_DIR}

# placeholder file for the time being unless devstack provisioning scripts need it.
RUN touch ${XQUEUE_APP_DIR}/xqueue_env

# Expose ports.
EXPOSE 8040

FROM app as dev

# xqueue service config commands below
RUN pip install -r ${XQUEUE_CODE_DIR}/requirements/dev.txt

# After the requirements so changes to the code will not bust the image cache
COPY . ${XQUEUE_CODE_DIR}/

ENV DJANGO_SETTINGS_MODULE xqueue.devstack

CMD while true; do python ./manage.py runserver 0.0.0.0:8040; sleep 2; done

FROM app as production

# xqueue service config commands below
RUN pip install -r ${XQUEUE_APP_DIR}/requirements.txt

# After the requirements so changes to the code will not bust the image cache
COPY . ${XQUEUE_CODE_DIR}/

ENV DJANGO_SETTINGS_MODULE xqueue.production

CMD gunicorn \
    --pythonpath=/edx/app/xqueue/xqueue \
    --timeout=300 \
    -b 0.0.0.0:8040 \
    -w 2 \
    - xqueue.wsgi:application