2026-02-11

Smart Zero‑Downtime Deployments for Low‑Spec Servers: Leveraging a Custom Blue‑Green Script

Discover a custom Blue‑Green deployment script that enables zero‑downtime releases on low‑spec servers and Raspberry Pi devices. The guide covers pre‑emptive Celery shutdown, staged startups, health checks, and a human‑in‑the‑loop approval step to keep CPU usage low while ensuring reliability, with full Docker Compose code examples and operational tips.