- Ideally, you avoid it in your application design.

- If you need it, you set up SIGTERM handling in the application to wait for all connections to close before the process exits. You also set up "connection draining" at the load balancer to keep existing sessions to terminating Pods open but send new sessions to the new Pods. The tradeoff is that rollouts take much longer- if the session time is unbounded, you may need to enforce a deadline to break connections eventua.