Blue‑Green Deployment
Source: content/manual/06-glossary/delivery/blue-green-deployment.md
Definition
Running two production environments (blue and green) and switching traffic between them for zero‑downtime releases and quick rollbacks.
Why it matters
Reduces downtime and risk during releases.
Common pitfalls
- Data/schema drift between environments.
- Cost of duplicated infrastructure.
References
- Release engineering guides
- playbooks/2025-10-zero-downtime-deploys/index.md