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FROM python:3.9-slim-bookworm
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
PIP_NO_CACHE_DIR=1 \
STREAMLIT_BROWSER_GATHER_USAGE_STATS=false \
MPLBACKEND=Agg \
MPLCONFIGDIR=/tmp/mplconfig
WORKDIR /app
# Minimal system deps for matplotlib fonts/rendering (no compilers needed)
RUN apt-get update && apt-get install -y --no-install-recommends \
curl ca-certificates fonts-dejavu libfreetype6 libpng16-16 \
&& rm -rf /var/lib/apt/lists/* \
&& mkdir -p /tmp/mplconfig
# Install Python deps
COPY requirements.txt .
RUN python -m pip install --upgrade pip setuptools wheel \
&& pip install --no-cache-dir --only-binary=:all: "TA-Lib==0.6.5" \
&& pip install --no-cache-dir -r requirements.txt
# Your code
COPY . .
ENV PORT=7860
EXPOSE 7860
# (Optional) healthcheck
HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
CMD curl --fail http://127.0.0.1:${PORT}/_stcore/health || exit 1
CMD ["sh","-c","streamlit run app.py --server.port=${PORT} --server.address=0.0.0.0"]
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