Dockerfile

# Stage 1: Build stage
FROM python:3.12-slim as builder

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/root/.local/bin:$PATH"

# Set working directory
WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential libpq-dev && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt /app/
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir --user -r requirements.txt && \
    ln -s /root/.local/bin/celery /usr/local/bin/celery

# Add celery user
RUN useradd -ms /bin/bash celeryuser
USER celeryuser
WORKDIR /home/celeryuser

# Stage 2: Runtime stage
FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/root/.local/bin:$PATH"

# Set working directory
WORKDIR /app

# Copy only necessary files from the builder stage
COPY --from=builder /root/.local /root/.local
COPY . /app/

# Expose the FastAPI default port
EXPOSE 8000

# Command to run the FastAPI app
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]