# Camera Station — a self-hosted viewer and recorder for MJPEG and RTSP cameras.
#
#   docker compose up -d
#
# Everything the service produces (recordings, photos, cameras.json) is written
# to /data, which docker-compose.yml maps to ./data on the host so it survives
# the container being rebuilt.

FROM python:3.12-slim

# ffmpeg is the only real dependency, and only RTSP cameras need it.
# tini gives the container a real init process, so stopping it delivers a clean
# signal and ffmpeg closes the segment it is writing instead of losing it.
# tzdata matters more than it looks: filenames are stamped with local time, and
# without it the TZ setting is ignored and everything is named in UTC.
RUN apt-get update \
 && apt-get install -y --no-install-recommends ffmpeg tini tzdata \
 && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY server.py index.html config.html library.html ./

ENV CAMERA_STATION_DATA=/data \
    PYTHONUNBUFFERED=1
VOLUME ["/data"]
EXPOSE 8000

# Report unhealthy if the camera list stops answering.
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD python3 -c "import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://127.0.0.1:8000/cameras', timeout=4).status==200 else 1)"

ENTRYPOINT ["/usr/bin/tini", "--"]
CMD ["python3", "server.py", "--host", "0.0.0.0", "--port", "8000"]