Containers & Deploy

Why every deployment target in this section - Docker, Lambda, Kubernetes - is really solving the same problem: turning a Python app into one immutable artifact, configured only at runtime, that an orchestrator can start, health-check, and replace without touching its contents.

WSGI/ASGI, servers, and process models.

Multi-stage builds and small images.

Workers, concurrency, and tuning.

Build, test, and deploy automation.

12-factor and secret injection.

Reproducible, observable, reversible releases.