Please note that this workshop has been archived and is not actively maintained. On September 30, 2026, AWS will discontinue support for AWS App Mesh. For more information, visit this blog post.
Roll out updates to the example microservices
Canary release is a software development strategy in which a new version of a service (as well as other software) is deployed as a canary release for testing purposes, and the base version remains deployed as a production release for normal operations.
In this chapter, let’s create a new version of the Crystal backend application and use the App Mesh to control the Canary deployment process where we will start sending only a small part of the traffic to the new version. If all goes well, then we will continue to shift more traffic to the new version until it is serving 100% of all requests.