runc-checkpoint (8) - Linux Manuals

runc-checkpoint: checkpoint a running container


runc-checkpoint - checkpoint a running container


runc checkpoint [option ...] container-id


The checkpoint command saves the state of the running container instance with the help of criu(8) tool, to be restored later.


--image-path path
Set path for saving criu image files. The default is ./checkpoint.

--work-path path
Set path for saving criu work files and logs. The default is to reuse the image files directory.

--parent-path path
Set path for previous criu image files, in pre-dump.

Leave the process running after checkpointing.

Allow checkpoint/restore of established TCP connections. See criu --tcp-establised option <>.

Allow checkpoint/restore of external unix sockets. See criu --ext-unix-sk option <>.

Allow checkpoint/restore of shell jobs.

Use lazy migration mechanism. See criu --lazy-pages option <>.

--status-fd fd
Pass a file descriptor fd to criu. Once lazy-pages server is ready, criu writes \0 (a zero byte) to that fd. Used together with --lazy-pages.

--page-server IP-address:port
Start a page server at the specified IP-address and port. This is used together with criu lazy-pages. See criu lazy migration <>.

Allow checkpoint/restore of file locks. See criu --file-locks option <>.

Do a pre-dump, i.e. dump container's memory information only, leaving the container running. See criu iterative migration <>.

--manage-cgroups-mode soft|full|strict.
Cgroups mode. Default is soft. See criu --manage-cgroups option <>.

--empty-ns namespace
Checkpoint a namespace, but don't save its properties. See criu --empty-ns option <>.

Enable auto deduplication of memory images. See criu --auto-dedup option <>.


criu(8), runc-restore(8), runc(8), criu(8).