title: Consistent Hashing based on HTTP header for Kubernetes Service
body: <p>I have a K8s Service named <code>orderProcessor</code> with 5 pods.
  Based on the <code>orderId</code> HTTP Request header, I want to route the HTTP call to a specific pods.</p>
  <p>For example:</p>
  <p>requestId with <code>orderId ABC</code> should always go to Pod A and requestId with <code>orderId PQR</code> should always go to Pod B</p>
  <p>If pod A is down and replaced with Pod C, then all request with <code>orderId ABC</code> should go to Pod C.</p>
  <p>Basically, for the same header value, request should always end up in same pod.</p>
  <p>Is this possible at service level? How to achieve this?</p>