title: Control green-blue deployment kubernetes
body: <p>I'm completely new to Kubernetes, I'm a bit lost of were to search. I would like to have blue-green deployment between with a web application solution. I've been told that the blue pods are destroyed when there is no user session anymore associated to the blue pods. Is this right? In some web pages I'm reading that there is a flip between one and the other.
  Is it mandatory to use the session? In my case I've got a stateless application</p>