title: When will the kubernetes POD IP change?
body: <p>I am trying to port a monolithic app to k8s pods. In theory, pods are considered ephemeral and it is suggested to use service concept to provide a static IP. But in my test so far, I have not seen the POD IP being changed. So now the question when will k8s assign a new IP to my POD?</p>
  
  <p>I have created POD (without using any controller) with fixed hostname and they are bounded to a single node. So the node and the hostname will never change and the POD will never be deleted? So in this unique case, when can the POD IP change. I looked at the documentation and this is not clear to me.</p>