A city wants near-instant rollback from green back to blue. Blue Pods are still running at reduced scale. What advantage does blue/green offer?
Select an answer to reveal the explanation.
Short Explanation
If blue never left the building, rollback is flipping the Service sign back—fast. You’re not stuck waiting for a slow unroll as long as blue capacity remains. Selectors aren’t carved in stone.
Full Explanation
Keeping the previous Deployment available enables a rapid blue/green rollback by restoring the Service selector to blue labels. That can be faster than waiting for a Deployment rollout undo. Service selectors are mutable, and Helm is not required for the primitive pattern.