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# Use an official Python runtime as a parent image
FROM python:3.12-slim as builder
# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
PIP_NO_CACHE_DIR=1 \
PIP_DISABLE_PIP_VERSION_CHECK=1 \
PYTHONOPTIMIZE=2
WORKDIR /build
# Copy only requirements first to leverage Docker caching
COPY ./requirements.txt .
# Install dependencies into a virtual environment
RUN python -m venv /venv && \
/venv/bin/pip install --no-cache-dir --upgrade pip && \
/venv/bin/pip install --no-cache-dir -r requirements.txt
# Final stage
FROM python:3.12-slim
# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
PYTHONOPTIMIZE=2 \
PATH="/venv/bin:$PATH"
WORKDIR /app
# Create a non-root user
RUN addgroup --system app && \
adduser --system --group app && \
chown -R app:app /app
# Copy the virtual environment from the builder stage
COPY --from=builder /venv /venv
# Copy application code and assets
COPY --chown=app:app ./app ./app
COPY --chown=app:app ./static ./static
COPY --chown=app:app ./templates ./templates
# Expose the port
EXPOSE 7860
# Switch to non-root user
USER app
# Add healthcheck
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost:7860/health || exit 1
# Command to run the FastAPI application with optimized settings
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "4", "--proxy-headers"] |