<p>I want to develop a custom API gateway for kubernetes to support user-based routing to canary release. I haven't found even any API gateway which serves this purpose.</p>

Zain Malik
<p>Istio Service Mesh allows you to do just that.
You can route users to different application versions by creating routing rules based on custom headers, cookies, etc...</p>

<p>If there's no specific rules, you can expose services with different weights (i.e 90% - 10%).</p>

<p>Of course it's installable on top of Kuberenetes and replaces the ingress controller.</p>

<p>Hope this helps.</p>
