Develop success from failures. Discouragement and failure are two of the surest stepping stones to success. -Dale Carnegie
Author: Manjunath Ingale
Blue/Green Deployment | Glossary
Definition:
The blue/green is a strategy for change in management to releasing software code. Blue/green deployments, which may also be stated as A/B deployments require two identical hardware environments that are configured exactly the same way. While one environment is active and serving end users, the other environment remains idle.
Further Reading:
Book: The DevOps Handbook by Gene Kim, Jez Humble,Patrick Debois.