State of Checkpoint/Restore in Kubernetes

Day 1 | 11:50 | 00:20 | UD2.218A | Adrian Reber

Note: I'm reworking this at the moment, some things won't work.

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In 2015 a ticket was opened asking for container migration support in Kubernetes. In 2022 the first minimal support to checkpoint and restore containers was added to Kubernetes 1.25 as an Alpha feature. In Kubernetes 1.30 (2024 ) the checkpoint/restore support graduated to the Beta phase.

In this session I want to give an overview what is currently possible in regards to checkpointing and restoring containers in Kubernetes. I want to give details in what way the containerd and CRI-O implementations differ and I want to describe the future plans for checkpoint/restore in Kubernetes.