File size: 3,202 Bytes
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FROM python:3.11-slim
# ── System dependencies (ffmpeg required by Whisper) ─────────────────────────
RUN apt-get update && apt-get install -y --no-install-recommends \
ffmpeg \
git \
curl \
build-essential \
&& apt-get clean && rm -rf /var/lib/apt/lists/*
# ── Create non-root user (HF Spaces requirement) ──────────────────────────────
RUN useradd -m -u 1000 appuser
# ── Working directory ─────────────────────────────────────────────────────────
WORKDIR /app
# ── Install Python dependencies first (Docker layer cache) ───────────────────
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
pip install --no-cache-dir -r requirements.txt
# ── Copy application code ─────────────────────────────────────────────────────
COPY --chown=appuser:appuser . .
# ── Persistent storage dirs (mounted at /data by HF Spaces paid tier) ─────────
RUN mkdir -p /data/.huggingface /data/.cache/huggingface/hub /tmp/audio_cache && \
chown -R appuser:appuser /data /tmp/audio_cache
# ── HF cache environment variables ───────────────────────────────────────────
# All model downloads go to /data so they survive Space restarts
ENV HF_HOME=/data/.huggingface
ENV HUGGINGFACE_HUB_CACHE=/data/.huggingface/hub
ENV TRANSFORMERS_CACHE=/data/.huggingface/hub
ENV XDG_CACHE_HOME=/data/.cache
# Whisper also respects this
ENV WHISPER_CACHE=/data/.huggingface/whisper
# ── App config ────────────────────────────────────────────────────────────────
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
# HF Spaces routes external traffic to port 7860
ENV PORT=7860
# ── Switch to non-root user ───────────────────────────────────────────────────
USER appuser
# ── Expose port ───────────────────────────────────────────────────────────────
EXPOSE 7860
# ── Start Flask via Gunicorn (production-grade WSGI server) ──────────────────
CMD ["gunicorn", \
"--bind", "0.0.0.0:7860", \
"--workers", "1", \
"--threads", "4", \
"--timeout", "120", \
"--worker-class", "gthread", \
"--log-level", "info", \
"app:app"]
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