Dockerfile

# Stage 1: Install dependencies
FROM python:3.9-alpine AS builder

# Install build dependencies
RUN apk add --no-cache gcc musl-dev libffi-dev openssl-dev git

# Set working directory
WORKDIR /app

# Copy requirements and install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt

# Stage 2: Final image
FROM python:3.9-alpine

# Install runtime dependencies
RUN apk add --no-cache git

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set working directory
WORKDIR /app

# Copy installed dependencies from builder
COPY --from=builder /install /usr/local

# Copy application code
COPY . .

# Expose port
EXPOSE 5000

# Run the application
CMD ["python", "app.py"]