Explain the concept of "blue-green deployment" in the context of CI/CD and its advantages.
- A/B testing
- Blue-green deployment
- Canary deployment
- Feature toggle
Blue-green deployment is a CI/CD strategy where two environments, "blue" and "green," are maintained. Only one environment serves live production traffic at a time. This approach minimizes downtime and risk during deployments, allowing seamless rollbacks if issues arise. The advantages include reduced downtime, minimal impact on users, and the ability to test changes in a production-like environment before full deployment.
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