Files
JakeBreath a17dd5a4ef Keep secrets and runtime data out of the Docker images
The build context is the repository root and there was no .dockerignore, so
'COPY backend/ ./' swept backend/venv (327 MB), backend/media (the actual
library, 224 MB), backend/logs, backend/staticfiles and backend/.env
(SECRET_KEY plus the database password) into the backend image: 1.43 GB per
architecture, including secrets headed for the registry. The frontend build
stage also copied the host's node_modules over the fresh install.

- Root .dockerignore excludes .git, virtualenvs, __pycache__, db.sqlite3,
  logs/staticfiles, .env files, media/, node_modules, dist and the deploy
  runtime state (data/, tailscale-state/).
- The backend Dockerfile now asserts the context is clean (.env, venv,
  media/library, db.sqlite3 all absent) before collectstatic, so a missing
  ignore file fails the build instead of leaking.
- Rebuilt: backend 1.43 GB -> 876 MB ('COPY backend/' is now 268 kB),
  frontend stays at 65 MB. Verified by booting the compose stack with the
  new image: migrations applied, /health ok, no .env or venv inside, and
  /app/media is the mounted (empty) volume; the scheduler runs too.
- Removed the stale local images that still contained the library and the
  dev .env.
2026-09-18 16:04:55 -05:00

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# J621-Backend — Django + gunicorn, with migrations applied on start.
#
# Build context is the repository root, e.g.:
# docker build -f deploy/J621-Backend -t j621-backend .
#
# Needs MariaDB and Redis (see the compose files). ffmpeg is used for video
# thumbnails; media/logs live under the mounted volumes.
# syntax=docker/dockerfile:1
FROM python:3.14-slim
# Baked in by the push scripts so the shell's version pill shows the commit
# even though the image has no .git directory.
ARG GIT_HASH=unknown
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
GIT_COMMIT_HASH=$GIT_HASH
WORKDIR /app
RUN apt-get update \
&& apt-get install -y --no-install-recommends ffmpeg \
&& rm -rf /var/lib/apt/lists/*
COPY backend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt
COPY backend/ ./
COPY deploy/backend-entrypoint.sh /usr/local/bin/j621-entrypoint
COPY deploy/scheduler-entrypoint.sh /usr/local/bin/j621-scheduler
# Guard: fail the build if the context leaked secrets or runtime data
# (.dockerignore excludes them — see the repository root).
RUN test ! -e /app/.env \
&& test ! -d /app/venv \
&& test ! -d /app/media/library \
&& test ! -e /app/db.sqlite3 \
&& echo "build context clean"
RUN chmod +x /usr/local/bin/j621-entrypoint /usr/local/bin/j621-scheduler \
&& mkdir -p /app/media /app/logs \
&& python manage.py collectstatic --noinput
EXPOSE 8000
HEALTHCHECK --interval=30s --timeout=5s --start-period=30s \
CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health')" || exit 1
ENTRYPOINT ["j621-entrypoint"]