KubeCon + CloudNativeCon Europe 2020

We will describe and demonstrate how to architect a CI/CD solution to upgrade Kubernetes services while relying on fully automatic traffic management driven by principled metric and success criteria analysis. Our solution relies on Istio’s support for traffic management and on iter8 (https://iter8.tools), a new open-source Kubernetes controller and analytics engine. Iter8 automatically shifts user traffic to a canary version as it becomes increasingly confident in the canary’s performance and correctness, and it rolls back to the current version if things go bad. By way of example, we will show how IBM Watson Health migrated to our proposed solution and the lessons learned in the process.