 off the shelf network appliances by writing a simple gateway
controller.</p><p>For ingress traffic management, you might ask: <em>Why not reuse Kubernetes Ingress APIs</em>?
The Ingress APIs proved to be incapable of expressing Istio&rsquo;s routing needs.
By trying to draw a common denominator across different HTTP proxies, the
Ingress is only able to support the most basic HTTP routing and ends up
pushing every other feature of modern proxies into non-portable
annotations.</p><p>Istio <code>Gateway</code