runc-checkpoint - Man Page

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 ⟨⟩.

See Also

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

Referenced By

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