Dockerfile

# syntax=docker/dockerfile:1
FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
ENV PYTHONPATH=/app

# Install PostgreSQL client and development libraries for psycopg2
RUN apt-get update && apt-get install -y \
    libpq-dev gcc && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /app

COPY requirements.txt /app/
RUN pip install --no-cache-dir -r requirements.txt

# Add PostgreSQL APT repository to install PostgreSQL 16 client tools
RUN apt-get update && \
    apt-get install -y wget gnupg2 lsb-release && \
    wget -qO - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
    echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
    apt-get update && \
    apt-get install -y postgresql-client-16

COPY . /app/

# Expose port
EXPOSE 8003

# Start the server
CMD ["gunicorn", "chudartz.wsgi:application", "--bind", "0.0.0.0:8003"]