Dockerfile

FROM python:3.11-slim

# Set environment variables (may need to change authority)
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

# Create working directory (and authorised token)
WORKDIR /app

# Add to Dockerfile
ENV TRANSFORMERS_CACHE=/app/model_cache
ENV HF_HOME=/app/.cache/huggingface
ENV SENTENCE_TRANSFORMERS_HOME=/app/.cache/huggingface/sentence-transformers

# Install SSL root certs and system deps required by pymongo + DNS
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates curl dnsutils gcc openssl && \
    rm -rf /var/lib/apt/lists/*

# Copy and install dependencies
COPY requirements.txt .
RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Copy source code (app files)
COPY . .

# Expose the port used by Uvicorn
EXPOSE 7860

# Run the FastAPI application using Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860", "--log-level", "debug"]