Description: Blue-green deployment is a technique that reduces downtime and risk by running two identical production environments. In this strategy, two versions of an application are created: the ‘blue’ version, which is the currently running version, and the ‘green’ version, which is the new version to be deployed. Both versions are available in parallel, allowing for thorough testing in the green environment before redirecting user traffic to it. This technique not only minimizes the risk of failures in the new version but also facilitates rollback to the previous version in case issues arise. Additionally, blue-green deployment allows for more controlled and efficient updates, enhancing the end-user experience. In the context of modern software development practices, this technique integrates seamlessly with various deployment pipelines and container orchestration systems, enabling developers and operations teams to implement changes in an agile and secure manner while maintaining service continuity and optimizing available resources.
