This article describes the status of checkpoint/restore integration with containerd, and how to use it.
Container Checkpoint/Restore
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Note: ctr is unsupported debug and administrative client for interacting with the containerd daemon. The commands, options, and operations are not guaranteed to be backward compatible or stable from release to release of the containerd project.
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Pull "ubuntu:latest" image if not already available locally.
ctr image pull docker.io/library/redis:alpine
Create and run a container with ID "looper"
ctr run -d docker.io/library/redis:alpine redis
Create container checkpoint
ctr c checkpoint --rw --task redis checkpoint/redis:cr-1
Show information about the new checkpoint image registered with containerd
ctr images ls 'name==checkpoint/redis:cr-1'
Restore container from checkpoint
ctr c restore --rw --live redis-debug checkpoint/redis:cr-1