Blue-Green Deployment
Reviewed by Devopsify Platform Team, · Checked by Devopsify Infrastructure & Reliability group,
Running two identical production environments and switching traffic from blue to green once the new version proves healthy.
Rollback is instant: switch back. The cost is double capacity during the switch plus disciplined data migration (expand first, contract later). Compare with canary releases when you want gradual exposure, and keep the rollback path rehearsed either way.