Dockerfile

# TODO:
# - Consider python:3.10-slim
# - Once dropping legacy AngularJS, build FE bundles separately

# Things needed to use this in production:
# - Direct logs to files outside the container
# - Ensure that Celery works as well
# - Run WSGI with an ENTRYPOINT

FROM ubuntu:22.04 AS build

WORKDIR /app/

ENV DEBIAN_FRONTEND="noninteractive"

RUN apt-get update && apt-get install --no-install-recommends -y \
    build-essential gcc \
    # Only for installing node \
    curl \
    # Only needed to install legacy node dependencies from git \
    git \
    locales \
    # Postgres client (for accessing RDS in production) \
    postgresql-client postgresql-contrib libpq-dev \
    python3.10 python3-dev python3-pip \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Install node directly into the container we'll use for Django.
# This is only necessary while we're still serving the legacy frontend.
# Once we're on the new Vue setup, all we need to do is copy in the build bundle & webpack-stats.json
RUN curl -sL https://deb.nodesource.com/setup_16.x | bash -
RUN apt-get update && apt-get install --no-install-recommends -y nodejs

RUN locale-gen en_US.UTF-8
RUN update-locale en_US.UTF-8

# `click` will error out without locales explicitly set
ENV LANGUAGE=en_US.UTF-8
ENV LANG=en_US.UTF-8
ENV LC_ALL=en_US.UTF-8

RUN pip3 install --upgrade pip==24.1

COPY .tool-versions .
RUN pip install poetry==$(awk '/poetry/{printf $2}' .tool-versions)
COPY poetry.lock .

# Instruct poetry to create a venv in `.venv`, then auto-add it to path
RUN poetry config virtualenvs.in-project true
ENV PATH="/app/.venv/bin:$PATH"

COPY pyproject.toml .
RUN poetry install --no-root --with=test,lint,mypy

# Install legacy frontend
COPY package.json package-lock.json ./
RUN npm ci

# Build the new Vue frontend, creating webpack-stats.json which Django will serve
COPY frontend ./frontend
RUN npm --prefix=frontend/ ci
RUN npm --prefix=frontend/ run build

COPY manage.py .
COPY ws ./ws

# NOTE: For the legacy AngularJS build, setting `WS_DJANGO_TEST` bypasses compressors
# (yuglify, specifically). Not a problem for tests, but does break production.
# Hopefully we've dropped the legacy setup & can just use webpack.
RUN WS_DJANGO_TEST=1 ./manage.py collectstatic

# ------------------------------------------------------------------------

FROM build AS installer

# Remove dev dependencies (smaller venv, no dev deps in prod)
RUN poetry install --no-root --sync --only=prod

FROM ubuntu:22.04

WORKDIR /app/
ENV PATH="/app/.venv/bin:$PATH"
COPY ws ./ws

# We now copy the venv which should have *only* production dependencies.
COPY --from=installer /app/.venv ./.venv
# TODO: Copy static files too (but only if still serving legacy FE)
# ENTRYPOINT = ...