Cloud-Native Applications in Java

Canary deployment

Canary deployment is also a variation of the blue-green deployment. Canary deployment addresses the wasted resources that are provisioned when running two production instances simultaneously, albeit for a short duration. In canary deployments, the green environment is a scaled-down version of the blue environment and is relying on the capability of the router to consistently route a small percentage of the requests to the new green environment, while the bulk of the requests are routed to the blue environment. The following figure depicts this:

This is particularly useful when releasing new features of an application that ...