title: Spring cloud gateway route with multiple instances and sticky session
body: <p>I'm pretty much new to spring cloud gateway. I have configured routing with two different apps with 'path'. Now, I need some help/docs on</p>
  
  <pre><code>1. How to route to different instance of an app from spring cloud gateway?
  2. How to enable sticky session?
  </code></pre>
  
  <p>My apps are not using spring boot/eureka. I do see that I can use lb://service-name if i'm using any discovery client (unfortunately that is not my case).</p>
  
  <p>Thanks in advance.</p>