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# ─────────────── Stage 1: build Python deps ───────────────
FROM python:3.10-slim AS builder
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1
WORKDIR /app
# basic C / system libs for wheels that need compile
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential libglib2.0-0 libsm6 libxrender1 libxext6 \
&& rm -rf /var/lib/apt/lists/*
COPY requirements.txt /
RUN pip install --upgrade pip \
&& pip install --no-cache-dir -r /requirements.txt
# download the small spaCy English model at build-time
RUN python -m spacy download en_core_web_sm
# ─────────────── Stage 2: runtime image ────────────────────
FROM python:3.10-slim
# ‼️ fix Streamlit "permission denied /.streamlit" issue
ENV STREAMLIT_DATA_DIR=/tmp/.streamlit \
XDG_STATE_HOME=/tmp \
STREAMLIT_BROWSER_GATHERUSAGESTATS=false
RUN mkdir -p /tmp/.streamlit
WORKDIR /app
RUN apt-get update && apt-get install -y --no-install-recommends \
libglib2.0-0 libsm6 libxrender1 libxext6 \
&& rm -rf /var/lib/apt/lists/*
# copy installed libs from builder
COPY --from=builder /usr/local/lib/python3.10/site-packages /usr/local/lib/python3.10/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin
# app source
COPY . /app
# non-root user for security
RUN groupadd -r appuser && useradd -r -g appuser appuser \
&& chown -R appuser:appuser /app
USER appuser
EXPOSE 7860
# Streamlit entry
ENTRYPOINT ["streamlit", "run", "app.py", "--server.address=0.0.0.0", "--server.port=7860"]
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