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# Shortlist Backend — HuggingFace Spaces Dockerfile
# Deploys FastAPI backend as a Docker Space
# ──────────────────────────────────────────────
# Stage 1: Install dependencies
FROM python:3.12-slim AS builder
WORKDIR /build
RUN apt-get update && \
apt-get install -y --no-install-recommends gcc && \
rm -rf /var/lib/apt/lists/*
COPY backend/requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt
# Stage 2: Production image
FROM python:3.12-slim
# HuggingFace Spaces requires UID 1000
RUN useradd -m -u 1000 user
WORKDIR /app
# Copy installed packages from builder
COPY --from=builder /install /usr/local
# Install git (needed for repo analyzer feature)
RUN apt-get update && \
apt-get install -y --no-install-recommends git && \
rm -rf /var/lib/apt/lists/*
# Copy backend application code
COPY --chown=user backend/app/ ./app/
COPY --chown=user backend/migrations/ ./migrations/
COPY --chown=user backend/apply_migration.py ./apply_migration.py
# Create temp directory for repo cloning
RUN mkdir -p /tmp/shortlist_repos && \
chown user:user /tmp/shortlist_repos && \
chmod 700 /tmp/shortlist_repos
# Switch to non-root user
USER user
ENV PATH="/home/user/.local/bin:$PATH"
# HuggingFace Spaces MUST listen on port 7860
EXPOSE 7860
# Run with uvicorn — single worker for HF free tier
CMD ["uvicorn", "app.main:app", \
"--host", "0.0.0.0", \
"--port", "7860", \
"--workers", "2", \
"--timeout-keep-alive", "120"]
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