Dockerfile

# syntax=docker/dockerfile:1
ARG PYTHON_VERSION=3.11.6
FROM --platform=linux/amd64 python:${PYTHON_VERSION}-slim AS base

# Prevents Python from writing pyc files and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

WORKDIR /app

# Install dependencies
COPY requirements.txt .
RUN --mount=type=cache,target=/root/.cache/pip \
    pip install -r requirements.txt

# Create a non-root user and switch to it
RUN adduser --disabled-password --gecos "" appuser
USER appuser

# Copy the source code into the container
COPY --chown=appuser:appuser . .

# Expose the port that the application listens on
EXPOSE 8000

# Add a health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/ || exit 1

# Run the application
CMD ["sh", "-c", "python manage.py migrate && python manage.py runserver 0.0.0.0:8000"]