Blue/green deployment is a method of gradually transferring user traffic from a previous version of an application or microservice to a nearly identical new release, both of which are running in production. This approach ensures two identical production environments, with one of them, such as blue, being live at any given time. The new release is tested in the green environment before it is deployed to the blue environment.
This allows for a smooth transition with minimal disruption to the user experience.
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The fundamental idea behind blue/green deployment is to shift traffic between two identical environments that are running different versions of your application. The blue environment represents the current application version serving production traffic.
Introduction - Blue/Green Deployments on AWS
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.
What is blue green deployment? - Red Hat
The blue-green deployment approach does this by ensuring you have two production environments, as identical as possible. At any time one of them, let's say blue for the example, is live. As you prepare a new release of your software you do your final stage of testing in the green environment.
Blue-green deployment is defined as a code release model with two different yet identical environments that exist simultaneously. Traffic is gradually moved from one to the other so that an …
What is Blue Green Deployment? - Spiceworks
Development teams use the blue - green method of deployment to create a second version of the application code that exists in the production environment alongside the existing code. User traffic is…
What Is Blue Green Deployment? A Guide | Built In
In blue-green deployments, two servers are maintained: a "blue" server and a "green" server. At any given time, only one server is handling requests (e.g., being pointed to by the…
Blue-green deployment - Wikipedia