An organization wants to launch a new version with minimal impact on users. They plan to maintain their current setup for stability while they verify the new release in a parallel environment. After confirming readiness, they intend to switch everyone to the new setup at once. Which approach satisfies these goals?
Blue-Green involves two parallel environments. One environment serves traffic while the other is tested, resulting in minimal downtime. There is a straightforward fallback path if issues arise after the switch. Rolling modifies portions of the environment in batches, which might introduce partial disruption. Canary shifts traffic to a small subset of users first instead of moving everyone at once. In-Place alters the existing setup directly, which increases the likelihood of downtime during the update.
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Why is the Blue-Green deployment method considered optimal for minimal downtime?
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How does Blue-Green deployment differ from Canary deployment in terms of risk management?
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What fallback mechanisms are in place for the Blue-Green deployment strategy?