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# ------------------------------------------------------------
# Base image
# ------------------------------------------------------------
FROM python:3.12-slim
# ------------------------------------------------------------
# Environment
# ------------------------------------------------------------
# PYTHONUNBUFFERED : ensures stdout/stderr aren’t buffered (logs show up instantly)
# PYTHONDONTWRITEBYTECODE : avoids .pyc files
# PIP_NO_CACHE_DIR : prevents pip from caching wheels
ENV PYTHONUNBUFFERED=1 \
PYTHONDONTWRITEBYTECODE=1 \
PIP_NO_CACHE_DIR=1
RUN mkdir -p /app/output /app/backend/output && chmod -R 777 /app/output /app/backend/output
# ------------------------------------------------------------
# Working directory inside container
# ------------------------------------------------------------
WORKDIR /app
# ------------------------------------------------------------
# Copy application files
# ------------------------------------------------------------
# Copy only what’s required first (so Docker can cache layers)
COPY . .
# ------------------------------------------------------------
# System + Python dependencies
# ------------------------------------------------------------
# --no-install-recommends : install only what we ask for
# Remove apt cache & docs to reduce size
RUN apt-get update && \
apt-get install -y --no-install-recommends \
ffmpeg \
libgl1 \
libglib2.0-0 \
libsm6 \
libxrender1 \
libxext6 && \
rm -rf /var/lib/apt/lists/* /usr/share/doc /usr/share/man /usr/share/locale && \
\
# Upgrade pip & install Python dependencies (CPU-only Torch)
pip install --no-cache-dir --upgrade pip && \
pip install --no-cache-dir \
torch==2.4.1+cpu \
torchvision==0.19.1+cpu \
--index-url https://download.pytorch.org/whl/cpu && \
pip install --no-cache-dir -r requirements.txt && \
# Editable install so the package can be imported elsewhere
pip install --no-cache-dir -e .
# ------------------------------------------------------------
# Networking
# ------------------------------------------------------------
EXPOSE 8000
# ------------------------------------------------------------
# Start FastAPI with auto-reload (remove --reload for production)
# ------------------------------------------------------------
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
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