In software engineering, blue-green deployment is a method of installing changes to a web, app, or database server by swapping alternating production and staging servers.
- What is blue green deployment?
Blue green deployment is an application release model that gradually transfers user traffic from a previous version of an app or microservice to a nearly identical new release — both of which are running in production.
2. What is blue green deployments in AWS?
A blue/green deployment is a deployment strategy in which you create two separate, but identical environments. One environment (blue) is running the current application version and one environment (green) is running the new application version.
3. What is blue green deployment in Devops?
Blue/green deployments enable you to launch a new version (green) of your application alongside the old version (blue), and monitor and test the new version before you reroute traffic to it, rolling back on issue detection.
4. What is blue green deployment in Kubernetes?
Blue/Green deployments are a form of progressive delivery where a new version of the application is deployed while the old version still exists. The two versions coexist for a brief period of time while user traffic is routed to the new version, before the old version is discarded (if all goes well).
5. Why is it called blue-green?
They finally settled on using colors instead, which didn’t have a natural order. Thus, they planned names like blue, green, or orange (they avoided red because it implied danger). In the end, it turned out they only needed two environments. And so the term blue-green was coined.