Kubernetes v1.25 introduced Container Checkpointing API as an alpha feature. This provides a way to backup-and-restore containers running in Pods, without ever stopping them.

This feature is primarily aimed at forensic analysis, but general backup-and-restore is something any Kubernetes user can take advantage of.

So, let’s take a look at this brand-new feature and see how we can enable it in our clusters and leverage it for backup-and-restore or forensic analysis.