 orders service in Cluster 1, will set the locality <code>us-west</code> pointing to Cluster 2 <code>istio-ingressgateway</code> and locality <code>us-east</code> pointing to the <code>istio-ingressgateway</code> for Cluster 3.</p><p>But wait, there&rsquo;s even more complexity: What if the payment services want to move traffic to the <code>us-east</code> region for a planned maintenance in <code>us-west</code>? This would require the payments service to change the Istio configuration in all of their client