I built crik[1] to orchestrate CRIU operations inside a container running in Kubernetes so that you can migrate containers when spot node gets a shutdown signal. Presented it at KubeCon Paris 2024 [2] with a deep dive for those interested in the technical details.
[1]: https://github.com/qawolf/crik
[2]: The Party Must Go On - Resume Pods After Spot Instance Shutdown, https://kccnceu2024.sched.com/event/1YeP3