wenil
d8cb0dc06d
Web tool for designing nickel/copper busbars over cylindrical-cell battery packs (21700, 18650) in hex holders. Flask + build123d backend exports STEP/DXF/SVG; vanilla JS frontend with live preview, multi-project SQLite persistence, snapshot history. Deploy scripts in deploy/ (proxmox-lxc.sh, install.sh, update.sh).
51 lines
1.5 KiB
Docker
51 lines
1.5 KiB
Docker
# Multi-stage to keep the runtime image small.
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# build123d pulls scipy + matplotlib + OCP wheel — a few hundred MB.
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FROM python:3.12-slim AS builder
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ENV PIP_NO_CACHE_DIR=1 \
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PIP_DISABLE_PIP_VERSION_CHECK=1
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RUN apt-get update && apt-get install -y --no-install-recommends \
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build-essential libgl1 libglu1-mesa libxrender1 libxext6 libsm6 \
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libgomp1 \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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COPY requirements.txt .
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RUN pip install --user -r requirements.txt && \
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pip install --user gunicorn
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# ---------------------------------------------------------------------------
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FROM python:3.12-slim AS runtime
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# OCP needs these at runtime.
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RUN apt-get update && apt-get install -y --no-install-recommends \
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libgl1 libglu1-mesa libxrender1 libxext6 libsm6 libgomp1 \
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&& rm -rf /var/lib/apt/lists/* \
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&& useradd --create-home --shell /usr/sbin/nologin app
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COPY --from=builder /root/.local /home/app/.local
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ENV PATH=/home/app/.local/bin:$PATH \
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PYTHONUNBUFFERED=1 \
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HOST=0.0.0.0 \
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PORT=5000 \
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FLASK_DEBUG=0
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WORKDIR /app
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COPY --chown=app:app app.py busbar_export.py ./
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COPY --chown=app:app static/ ./static/
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USER app
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EXPOSE 5000
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# SQLite DB lives here; mount as a volume to persist across container restarts.
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ENV BUSBAR_DB=/app/data/busbar.db
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VOLUME /app/data
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# 2 workers is plenty — each export is CPU-bound on OpenCASCADE; more workers
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# don't help on a single-socket VM and just balloon RAM.
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CMD ["gunicorn", "--bind=0.0.0.0:5000", "--workers=2", "--threads=2", \
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"--timeout=120", "app:app"]
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