runc/man/runc-checkpoint.8.md

% runc-checkpoint "8"

NAME

runc-checkpoint - checkpoint a running container

SYNOPSIS

runc checkpoint [option ...] container-id

DESCRIPTION

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

OPTIONS

--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-running

Leave the process running after checkpointing.

--tcp-established

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

--tcp-skip-in-flight

Skip in-flight TCP connections. See criu --skip-in-flight option.

--link-remap

Allow one to link unlinked files back when possible. See criu --link-remap option.

--ext-unix-sk

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

--shell-job

Allow checkpoint/restore of shell jobs.

--lazy-pages

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.

--file-locks

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

--pre-dump

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|ignore.

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.

--auto-dedup

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

SEE ALSO

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