Chapter 27: Publishing and Deployment

ASP.NET Core deployments publish build output. Python deployments usually install your package and run an ASGI server.

Common production options:

• Container image running Uvicorn or Granian.
• Platform-as-a-service deployment.
• VM with systemd and reverse proxy.
• Kubernetes with health checks and config injection.

Container outline:

FROM python:3.12-slim

WORKDIR /app
COPY pyproject.toml ./
COPY src ./src
RUN pip install .

CMD ["uvicorn", "recipevault.main:app", "--host", "0.0.0.0", "--port", "8000"]

Deployment checklist:

• Set SECRET_KEY, database URL, allowed hosts, and CORS origins.
• Run migrations before serving new code.
• Serve static files through a CDN or reverse proxy when appropriate.
• Use multiple workers for CPU-bound or blocking sync workloads.
• Add liveness and readiness endpoints.
• Capture logs centrally.
• Monitor errors and latency.

Do not rely on --reload outside development.